3. INDEX
PAGE
4 The company
6 Machines and Certification tests
8 Design and Quality system
PAGE
10 Trunnion
12 Art. 85 Trunnion
26 Art. 85 Trunnion API 6A
28 Art. 88 Twin ball DB&B valves
32 Art. 185 Cryogenic
34 Art. 285 Subsea
36 Art. 385 Metal seated
38 Art. 485 Underground
PAGE
40 Floating
42 Art. 75 2 or 3 pieces split body
46 Art. 22 2 pieces split body
50 Art. 20 3 pieces swing-out body
54 Art. 175-122 Cryogenic
56 Art. 375 Metal seated
PAGE
70 Technical Information
72 Intro
73 Construction standards
74 Materials
75 Ends
76 Construction details
Locking device, Seat design, Anti static
device, Double O-ring feature, Low fugitive
emission, Fire safe, Single and double
piston effect, Steam extension
PAGE
82 Contacts
PAGE
58 Comodity valves
60 Art. 60 ball valve one piece bocy
61 Art 90 ball valve one piece bocy
62 Art 62 ball valve one pieces body with
integral nipple
63 Art 92 ball valve one pieces body
with integral nipple
64 Art 110 slanting needle valve
65 Art. 100 -120 needle valve
66 Art 130-135 needle valve-monobloc type
67 Art 160 gauge bearer valve
68 Art 140 check valve
69 Art 145 ball check valve monobloc type
4. Head office & facility: covered surface 6800 mq - Uncovered area 14.500 mq
5. 5ZA.VE.RO. srl reserves the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
ZA.VE.RO.
One of the most experienced Italian manufacturer of
ball valves.
Our valves find their application in many different industrial processes,
from the more standardized ones (oil and gas pipelines, low pressure and
high pressure block services, etc.) to the most critical ones (sour service,
low temperature and cryogenic processes, high temperature and steam
treating, subsea and slurry service).
Vision To be one of the most reliable and innovative manufacturer,service
and solution provider in the ball valve industry
Mission To supply high quality ball valves, providing related services and
solutions to a worldwide client base while utilizing innovative technologies
within an environment of motivated employees focused on continuos
improvement,high business standards,work ethics, continuous leading to
added value to our cutomers.
“Valves have always
been central to my life”
Gianluigi Zanin, founder of Zavero srl
6. 6 ZA.VE.RO. srl reserves the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
CNC Machines
Our mission is providing customizable valves,
to match our Clients’ technical goals, appositely
engineered job by job, to insure the best
adherence to all the industrial processes and a
longer working life.
Automation Upon request we can supply valves complete with
any kind of actuators, such as: Pneumatic Actuators, Electric Motor
Operators, Gas Hydraulic Operators, Swing Return operators.
Production capacity Excess demand increase workforce hours -
Sub contract some production activities
7. 7ZA.VE.RO. srl reserves the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
Qualification
tests
Qualification tests on specified items may
be performed on request: Fire tests, Fugitive
emission tests, High pressure gas tests, High
and low temperature tests, Delayed torque
tests, Cycle operational and pressure test.
“FIRE-SAFE” TEST API 607 Edition V (Ball valve),
BS 6755 Part 2 (Needle valve), API 6FA (DB&B
valve)
Low fugitive emission Use of special seals
and the accurate matching of stem and bonnet
sealing areas of Trunnion and Floating ball valves
assures the compliance with the regulations
relevant to “low fugitive emission” Valves.
Cryogenic test If specified by the purchaser, the
tests can be performed to verify valve properties
and performances. Cryogenic test down to
minus 196 °C
8. 8 ZA.VE.RO. srl reserves the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
Design
This software allows our technical department to
study new projects from all points of view including
the behaviour of material under temperature and
pressure conditions.
Valve design according to ASME VIII, ASME II, API 6D-6A, ASME B16.34,
B16.5, B16.25, EN12516 - 1/2
On request
• supply of calculation notes for engineering review
• all valves are supplied with individual serial number and marking
F.E.A. test
Von Mises
(N/mm2
(MPa))
133.743
122.796
100.908
89.963
79.018
68.073
57.128
46.183
35.238
24.293
13.348
2.403
= enervation
9. 9ZA.VE.RO. srl reserves the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
ISO 9001
API Q1
Design, production & services
according to
API 6D (Lic. N.6D-0383)
API 6A (Lic. N.6A-0559)
API 6DSS
EN 14141 (Valves for transportation
of natural gas in pipeline)
Directive
94/9/EC (ATEX)
97/23/EC (PED)
SIL Certificate for Floating Ball Valves
SIL Certificate for Trunnion Ball Valves
material under temperature and
pressure condition
Quality system
10.
11. PAGE
12 Art. 85 Trunnion
PAGE
26 Art. 85 Trunnion API6A
PAGE
28 Art. 88 Twin ball DB&B valves
PAGE
32 Art 185 Cryogenic
PAGE
34 Art 285 Subsea
PAGE
36 Art 385 Metal seated
PAGE
38 Art 485 Underground
TRUNNION
ball valves
12. 12 ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
ART. 85
Trunnion
Za.Ve.Ro. Trunnion mounted API 6A/API 6D ball Valves are 3 pieces, con-
struction type, split body, side entry, in bolted execution or in welded body
execution, self relieving spring energized seats, suitable for double block
and bleed performance.
Seats are available in lubricated or not lubricated execution with different
solutions of sealing and fire safe back up gaskets (Soft or metal seated).
Stem is blowout proof and provided with emergency sealant injectors to
avoid leakage in case of sealing interruption. Antistatic device is also pro-
vided. Valves can be complete with lifting lugs and ground feet to facilitate
transportation and in line installation. See table page 17
Available pressure ratings:
ASME 150-300-600-900-1500-2500 • API 3000-5000-10000 psi
13. 13ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
15-01
Lever operated ball valve
Options
• locking device
• extended stem
• lip-seal
• garlock packing
• double piston effect
• metal to metal seat
• transition pieces (pups)
• RF - RJ - HUB - BW ends
• Lever, gear, pneumatic, hydraulic,
electric motor operated
Gear operated ball valve
Actuated ball valve
Trunnion
Details: see paragraph tecnical information
14. 14 ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
Trunnion mounted
Full and reduced bore
• Flanged ends (RF and RJ) as per ASME B16.5 B16.47 • BW ends as per ASME B16.25
• Face to face as per API6D ASME B16.10 • HUB ends manufactured as standard with
face to face as per RJ type • Inside diameter as per API6D
Upon request Large groove, large female, flat face and compact flange (NORSOK L005)
• Different bore reductions
Full bore Reduced bore
15. 15ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
15-01
1 Body
2 Closure
3*
Closure gasket
4*
Closure O-Ring
5 Closure stud
6 Closure nut
8 Ball
9 Seat insert
10 Seat ring
11 Seat spring
12*
Seat gasket
13*
Seat O-Ring
14 Trunnion
16 Thrust washer
17 Shell bearing
18*
Trunnion gasket
19*
Trunnion O-Ring
20 Trunnion bolt
21 Drain plug
24 Stem
25 Shell bearing
26*
Stem gasket
27*
Stem O-Ring
28 Gland flange
29*
Gland flange gasket
30*
Gland flange O-Ring
31 Stem grease injector
32 Operator flange
35 Flanges screw
37 Stop sector
39 Stop pin
40 Lever
41 Lever nut
40
41
37
39
35
17
35
14
32
18
19
28
20
27
29
16
31
21
30
25
26
24
1
8
910
10
13
13
12
12
2
2
4
4
3
3
6
6
11
11
5
5
See p.70 for materials & furter details
* Reccomended spare parts
Trunnion
16. 16 ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
Trunnion plate system
Full and reduced bore
• Flanged ends (RF and RJ) as per ASME B16.5 B16.47 • BW ends as per ASME B16.25
• Face to face as per API6D ASME B16.10 • HUB ends manufactured as standard with
face to face as per RJ type • Inside diameter as per API6D
Upon request Large groove, large female, flat face and compact flange (NORSOK L005)
• Different bore reductions
Full bore Reduced bore
17. 17ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
15-01
1 Body
2 Closure
3*
Closure gasket
4*
Closure O-Ring
5 Closure stud
6 Closure nut
7 Seat grease injector
8 Ball
9 Seat insert
10 Seat ring
11 Seat spring
12*
Seat gasket
13*
Seat O-Ring
14 Support Plate
16 Thrust washer
21 Drain plug
22 Vent bleeder
23 Check valve
24 Stem
26*
Stem gasket
27*
Stem O-Ring
28 Gland flange
29*
Gland flange gasket
30*
Gland flange O-Ring
31 Stem grease injector
32 Operator flange
34 Pin
35 Flanges screw
46 Stem key
47 Foot
48 Lifting lug
35
32
28
35
3131 27
29
24
48
30
34
16
22
26
2
237
2
4
12
13
4
3
13
10
3
6
6
11
13
12
10
13
1
14
8
9
21
11
5
47
5
48
See p.70 for materials & furter details
* Reccomended spare parts
Trunnion
18. 18 ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
Stem grease/sealant injector on all valve sizesF
Vent bleeder see table
Lifting lug see table Foot see table
C
A B
Standard features
Seat grease / Sealant injector see table
Two emergency seat
sealant injectors can
be installed where
applicable.
Trunnion valves equipped
with emergency sealant
injectors on the stem,
put between the upper
O-rings and the fire safe
gasket.
Check valve only for high
pressure valves
NPT thread 1/2” 3/4” 1”
as per ASME B16.34
NPT thread 1/2” 3/4” 1”
as per ASME B16.34
D
Drain Plug on all valve sizesE
F
D B
A
E
C
19. 19ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
15-01
Drain with blind flange (optional)
Vent with blind flange
G
H
SIZE-BORE ANSI
Full Reduced 150 300 600 900 1500 2500
1/2"
3/4"x1/2"
3/4"
1"x3/4"
1"
1"1/2x1"
1"1/2
2"x1"1/2
2"
3"x2"
3"
4"x3"
4"
6"x4"
6"
8"x6"
8"
10"x8"
10"
12"x10"
12"
14"x12"
14"
16"x14"
16"
18"x16"
18"
20"x18"
20"
22"x18''
22"
24"x20"
24"
26"x20"
26"
28"x24"
28"
30"x26"
30"
32"x28"
32"
36"x32"
36"
40''x 36''
40''
42''x 36''
42''
48''x 42''
48''
56''
A
B
C
D
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
= Metal seated
Trunnion
26. 26 ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
ART. 85
27. 27ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
15-01
SIZE-BORE API 3000 Dimensions in mm
DN ØA ØD L
2'' 1/16 215 52,4 371
3'' 1/8 240 79,4 384
4'' 1/16 290 103,2 460
5''1/8 350 130,2 613
7'' 1/16 380 179,4 714
SIZE-BORE API 10000 Dimensions in mm
DN ØA ØD L
1''13/16 185 46 464
2'' 1/16 200 52,4 521
2'' 9/16 230 65,1 565
3'' 1/16 270 77,8 619
4'' 1/16 315 103,2 670
5''1/8 360 130,2 737
7'' 1/16 480 179,4 889
SIZE-BORE API 5000 Dimensions in mm
DN ØA ØD L
2'' 1/16 215 52,4 371
3'' 1/8 265 79,4 473
4'' 1/16 310 103,2 549
5''1/8 375 130,2 727
7'' 1/16 395 179,4 813
Data not included: not applicable. All “Face to face” dimensions not referred to international codes must be confimed in case of order.
ART. 85 - API 6A 15-01
28. 28 ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
ART. 88
Twin ball DB&B valves
Double block and bleed valve is a combination of two ball valves with
a needle valve between. That design type allows to have an integral
compact body and short face to face dimension.
You can have different solutions and different valve ends, as per customer
request.
29. 29ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
15-01
Options
• locking device
• extended stem
• lip-seal
• garlock packing
• double piston effect
• metal to metal seat
• transition pieces (pups)
• RF - RJ - HUB - BW ends
• Lever and gear operated
Further details see paragraph tecnical information
Twin ball DB&B
30. 30 ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
Cartridge twin ball
DB&B valves
Standard version designed to solve space
problems. Despite having two balls with
bleeder at the center, the design allows
size “face to face” very limited, in many
cases as API 6D and ASME B16.10 refer
to valves with single ball.
OperatorA
Standard features
Standard levers position
Standard version (the larger Face to Face dimension):
two gearboxes and two handwheels on the same side.
Cartr
DB&B
Standard v
problems.
bleeder at
size “face
cases as A
to valves w
Standard features
31. 31ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
15-01
Standard version needle valve screwed into the valve
body with 1/2” NPTF bleed.
Floating ball valve, our Art.75, bolted to the valve body;
that valve is provided with blind flange.
Bleeder Different solutions availableB
Floating ball valve, our Art.60, screwed to the
valve body; that valve is provided with plug.
1/2” NPT
Twin ball DB&B
32. 32 ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
ART. 185
Cryogenic
Cryogenic valves are designed to withstand temperatures down to
-196°C. All metallic parts are manufactured in stainless steel, while the
soft parts are realized in proper special materials suitable for this so severe
application.
Normally, the seats are in Poli-Chloro-Tri-Fluoro-Ethylene (PCTFE - Kel-F®
)
and PTFE lip seals insures the sealing of all dynamic components. Valve
bonnet is extended to keep a vapor room, to avoid the contact of liquid
cryogenic media to the gland.
33. 33ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
15-01
Further details see paragraph tecnical information
Options
• locking device
• double piston effect
• metal to metal seat
• RF - RJ - HUB - BW ends
• Gear, pneumatic, hydraulic, electric motor operated
Trunnion
34. 34 ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
ART. 285
Subsea
Subsea ball valves can be manufactured in bolted body or welded body
execution. Bolted valves are provided with a double body to closure
sealing. The first sealing is to avoid the leakage to the external environment,
while the second is to not permit to the sea water to get into the valve.
A specialsealing is applied to insulate completely the process fluid to the
environment. Special gearboxes or ROV receptacles are installed to be
operated at the highest water depths. Maximum depth 2000 m.
35. 35ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
15-01
Further details see paragraph tecnical informationical information
Options
• lip-seal
• double piston effect
• metal to metal seat
• RF - RJ - HUB - BW ends
• Special gear for subsea application
• Actuator for subsea application
Trunnion
36. 36 ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
ART. 385
Metal seated
Metal seated ball valves are normally provided with metal to metal seats
and adjustable graphite gland packing. No soft parts are considered,
due to the temperature which can reach more than 600°C. All metallic
parts are realized in forged special steels. Ball and seats hardfacing is
with chromium carbides or tungsten carbide. A stem extension may also
provided to facilitate the operation of the valve.
37. 37ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
15-01
Further details see paragraph tecnical information
Options
• locking device
• extended stem
• double piston effect
• RF - RJ - HUB - BW ends
• Gear, pneumatic, hydraulic, electric motor operated
Trunnion
38. 38 ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
ART. 485
Underground
Underground ball valves are usually provided in fully welded body
execution with butt welding ends. For this application valves are provided
with an extended stem; drain, vent and emergency sealant lines are fitted
at the top of the extension.
Suitable for all services and customized on project and customer
requirement
39. 39ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
15-01
Further details see paragraph tecnical information
Options
• locking device
• extended stem
• lip-seal
• double piston effect
• metal to metal seat
• RF - RJ - HUB - BW ends
• Gear, pneumatic, hydraulic, electric motor operated
Trunnion
40.
41. PAGE
42 Art. 75 2 or 3 pieces split body
PAGE
46 Art 22 2 pieces split body
PAGE
50 Art 20 3 pieces swing out body
PAGE
54 Art 175-122 Cryogenic
PAGE
56 Art 375 Metal seated
FLOATING
ball valves
42. 42 ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
Construction
• API 6D
• B16.34
• BS 5351
• Fire safe system API 607
• Antistatic
• TA-LUFT - 3.1.8.4
Options
• locking device
• extended stem
• garlock packing
• metal to metal seat
• RF - RJ - BW ends
• Soft and metal seated
ART. 75
2 or 3 pieces split body
Za.Ve.Ro. API 6D / BS 5351 floating ball valves are 2 or 3 pieces, full and
reduced bore, construction type, flanged ends, split body, side entry, in
bolted execution, blowout proof stem, fitted with antistatic device.
• F/F dimensions are long-pattern design
• Different bore reductions are available upon request
• BW ends manufactured as standard with to face as per API 6D
• HUB ends manufactured as standard with face to face as per RJ type
• Large groove, large female, flat face and compact flange are also
available upon request
Available pressure ratings:
ANSI 150-300-600-900-1500-2500
43. 43ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
15-01
Floating
Two pieces
Three pieces
Further details see paragraph tecnical information
45. 45ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
15-01
1 Body
2 Closure
3*
Closure gasket
4*
Closure O-Ring
5 Closure bolt
8 Ball
9*
Seat insert
24 Stem
26*
Stem gasket
27*
Stem O-Ring
28 Ring
36 Spring washer
37 Stop sector
39 Stop spin
40 Lever
41 Lever nut
40
41
37
36
28
26
24
27
39
1
9
98
4
5
3
2
See p.70 for materials & furter details
* Reccomended spare parts
Floating
46. 46 ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
Construction
• API 6D
• B16.34
• BS 5351
• Fire safe system API 607
• Antistatic
• TA-LUFT - 3.1.8.4
ART. 22
2 pieces split body floating ball valves
Za.Ve.Ro. API 6D / BS 5351 floating ball valves are two pieces split body
full and reduced bore, side entry, in bolted execution, blowout proof stem,
fitted with antistatic device.
Available pressure ratings:
800-1500-2500 lbs
47. 47ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
15-01
Options
• locking device
• extended stem
• metal to metal seat
• NPT -BSP - GAS M and F threaded ends
• BW - SW - PE nippled ends
• Soft and metal seated
• Nipples integral with the body
Two pieces and entry
Further details see paragraph tecnical information
Floating
48. 48 ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
SIZE-BORE FACE to FACE 800 Ibs Dimensions in mm WEIGHT
Full Reduced DN L L1 ød øD øC AL HL (Kg)
1/2” x 3/8" 15 115 210 10 14 58 180 85 3
1/2” 15 120 215 14 66 180 85 3
3/4" x 1/2” 20 130 220 14 19 68 180 85 4
3/4" 20 135 225 19 68 180 85 4
1” x 3/4" 25 140 228 19 25 78 215 135 6
1" 25 145 230 25 84 215 135 7
1”1/2x1”1/4 40 180 235 32 38 100 274 140 14
1”1/2 40 190 245 38 108 274 140 16
SIZE-BORE FACE to FACE 1500 Ibs Dimensions in mm WEIGHT
Full Reduced DN L L1 ød øD øC AL HL (Kg)
1/2” x 3/8" 15 115 210 10 14 58 180 85 3
1/2” 15 120 215 14 66 180 85 3
3/4" x 1/2” 20 130 220 14 19 68 180 85 4
3/4" 20 135 225 19 68 180 85 4
1” x 3/4" 25 140 228 19 25 78 215 135 6
1" 25 160 245 25 87 215 145 7
1”1/2x1”1/4 40 32 38
1”1/2 40 195 250 38 112 274 160 19
Data not included: not applicable. For further details see paragraph Technical Information
Full bore Reduced bore
ART. 22 15-01
HL
NPTNPT ød
AL
L øC
øD øD
L1
N N
L1
N N
ødøD øD
General Notes
In case of metal seated, some DN could have Face to Face greater than those in the table
• Standard nipples N= 80 for BW - CW - PE ends
• Upon request available with different nipples lenghts
THEADEDENDSWELDEDENDS
49. 49ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
15-01
40
41
37
36
28
26
24
27
39
1
9
9
8
4
3
2
5
1 Body
2 Closure
3*
Closure gasket
4*
Closure O-Ring
5 Closure bolt
8 Ball
9*
Seat insert
24 Stem
26*
Stem gasket
27*
Stem O-Ring
28 Ring
36 Spring washer
37 Stop sector
39 Stop spin
40 Lever
41 Lever nut
See p.70 for materials & furter details
* Reccomended spare parts
Floating
50. 50 ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
Construction
• API 6D
• B16.34
• BS 5351
• Fire safe system API 607
• Antistatic
• TA-LUFT - 3.1.8.4
ART. 20
3 pieces swing-out body
Za.Ve.Ro. API 6D/BS 5351 floating ball Valves are 3 pieces, split body,
side entry, in bolted execution, blowout proof stem, fitted with antistatic
device.
This valve is equipped with a “swing-out body” which allows an easy
in-line maintenance avoiding to cut the welded ends, since all the trim is
included into the body cavity.
Available pressure ratings:
800-1500 lbs
51. 51ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
15-01
Three pieces
Further details see paragraph tecnical information
Options
• locking device
• NPT -BSP - GAS M and F threaded ends
• BW - SW - PE nippled ends
Floating
52. 52 ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
The body can be removed
after installation
Data not included: not applicable. For further details see paragraph Technical Information
ART. 20 15-01
SIZE-BORE FACE to FACE 800 Ibs Dimensions in mm WEIGHT
Full Reduced DN L L1 ød øD øC AL HL (Kg)
1/2” x 3/8" 15 95 215 10 14 55 140 64 2
1/2” 15 95 215 14 55 140 64 2
3/4" x 1/2” 20 140 230 14 19 68 180 77 2,5
3/4" 20 140 230 19 68 180 77 2,5
1” x 3/4" 25 155 235 19 25 83 215 127 3
1" 25 155 235 25 83 215 127 3
1”1/2x1”1/4 40 185 265 32 38 108 215 120 5
1”1/2 40 185 265 38 108 215 120 5
SIZE-BORE FACE to FACE 800 Ibs Dimensions in mm WEIGHT
Full Reduced DN L L1 ød øD øC AL HL (Kg)
1/2” x 3/8" 15 95 215 10 14 55 140 64 2
1/2” 15 95 215 14 55 140 64 2
3/4" x 1/2” 20 140 230 14 19 68 180 77 2,5
3/4" 20 140 230 19 68 180 77 2,5
1” x 3/4" 25 165 245 19 25 87 215 127 3,5
1" 25 165 245 25 87 215 127 3,5
1”1/2x1”1/4 40 190 270 32 38 112 215 130 7
1”1/2 40 190 270 38 112 215 130 7
Full bore Reduced bore
• Standard nipples N= 80 for BW - SW - PE ends
• Upon request available with different nipples lenghts
HL
øD øDød
AL
L øC
L1
N N
øD
L1
N N
øDød
THEADEDENDSWELDEDENDS
53. 53ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
15-01
40
41
37
36
28
26
24
27
39
1
3
2
5
13
13
10 9
9
8
10
3
2
5
1 Body
2 Closure
3*
Closure gasket
4*
Closure O-Ring
5 Closure bolt
8 Ball
9*
Seat insert
10 Seat ring
13*
Seat O-ring
24 Stem
26*
Stem gasket
27*
Stem O-Ring
28 Ring
36 Spring washer
37 Stop sector
39 Stop spin
40 Lever
41 Lever nut
See p.70 for materials & furter details
* Reccomended spare parts
Floating
54. 54 ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
ART. 175
ART. 122
Cryogenic
Cryogenic valves are designed to withstand temperatures down to
-196°C. All metallic parts are manufactured in stainless steel, while the
soft parts are realized in proper special materials suitable for this so severe
application.
Normally, the seats are in Poli-Chloro-Tri-Fluoro-Ethylene (PCTFE - Kel-F®
)
and PTFE lip seals insures the sealing of all dynamic components. Valve
bonnet is extended to keep a vapor room, to avoid the contact of liquid
cryogenic media to the gland.
55. 55ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
15-01
Further details see paragraph tecnical information
Options
• locking device
• double piston effect
• metal to metal seat
• RF - RJ - HUB - BW ends.
• Gear, pneumatic, hydraulic, electric motor operated
Floating
56. 56 ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
ART. 375
Metal seated
Metal seated ball valves are normally provided with metal to metal seats
and adjustable graphite gland packing. No soft parts are considered,
due to the temperature which can reach more than 600°C. All metallic
parts are realized in forged special steels. Ball and seats hardfacing is
with chromium carbides or tungsten carbide. A stem extension may also
provided to facilitate the operation of the valve.
57. 57ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
15-01
Further details see paragraph tecnical information
Options
• locking device
• extended stem
• double piston effect
• RF - RJ - HUB - BW ends
• Gear, pneumatic, hydraulic, electric motor operated
Floating
58.
59. PAGE
60 Art. 60 ball valve one piece bocy
PAGE
61 Art 90 ball valve one piece bocy
PAGE
62 Art 62 ball valve one pieces body with integral nipple
PAGE
63 Art 92 ball valve one pieces body with integral nipple
PAGE
64 Art 110 slanting needle valve
PAGE
65 Art. 100 -120 needle valve
PAGE
66 Art 130-135 needle valve-monobloc type
PAGE
67 Art 160 gauge bearer valve
PAGE
68 Art 140 check valve
PAGE
69 Art 145 ball check valve monobloc type
COMMODITY
valves
60. 60 ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
Construction
• B16.34
• BS 5351
• Fire safe system API 607
• Antistatic
• TA-LUFT - 3.1.8.4
Options
• locking device
• extended stem
• NPT - BSP threated ends
• Soft seated
ART. 60
Ball valve one pieces body
Za.Ve.Ro. API 6D/BS 5351 floating ball Valves, full and
reduced bore, are one piece screwed body, side entry,
blowout proof stem, fitted with antistatic device.
Valves are available with NPT, BSP or GAS (male and
female) ends.
Available pressure ratings:
800-1500 lbs 3000-6000 psi
B
Za
red
blo
Va
fem
Av
Data not included: not applicable. For further details see paragraph Technical Information
SIZE-BORE (G) Dimensions in mm WEIGHT
Full Reduced DN L ød øD AL HL (Kg)
1/4” 8 70 10 110 65 0.8
3/8” x 1/4” 10 70 10 10 110 65 0.8
3/8” 10 75 10 145 75 1
1/2” x 3/8” 15 70 10 14 110 65 0.8
1/2” 15 75 14 145 75 1
3/4” x 1/2” 20 80 14 18 145 70 1
3/4” 20 85 18 180 80 1.5
1” x 3/4” 25 90 18 24 180 90 1.5
1” 25 95 24 180 90 1.8
1”1/4 x 1” 32 105 30 24 180 90 2.3
1”1/4 32 115 30 215 95 3.8
1”1/2 x 1”1/4 40 115 30 38 215 110 3.5
1”1/2 40 120 38 215 110 4.8
2” x 1”1/2 50 135 38 48 215 120 5.3
2” 50 142 48 215 120 7.5
3” x 2”1/2 80 160
3” 80 187
4” x 3” 100
4” 100
5”X4” 125
5” 125= Face to Face up to 3000 psi; L= 75 for 6000 psi
Full bore Reduced bore
AL
L
G
HL
øD
L
Gød
61. 61ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
15-01
Commodity
Construction
• B16.34
• BS 5351
• Fire safe system API 607
• Antistatic
• TA-LUFT - 3.1.8.4
Options
• locking device
• extended stem
• NPT - BSP threated
ends
• Soft seated
ART. 90
Ball valve one pieces body
Za.Ve.Ro. API 6D/BS 5351 floating ball Valves, full and
reduced bore, designed for high pressure are one piece
screwed body, side entry, blowout proof stem, fitted with
antistatic device.Valves are available with NPT, BSP or
GAS (male and female) ends.
Available pressure ratings:
2500 lbs 10000-15000 psi
Data not included: not applicable. For further details see paragraph Technical Information
SIZE-BORE (G) CLASS 2500-10000 Dimensions in mm WEIGHT
Full Reduced DN L ød øD AL HL (Kg)
1/4” 8 85 10 145 75 1.3
3/8” x 1/4” 10
3/8” 10 95 14 180 80 2
1/2” x 3/8” 15
1/2” 15 95 14 180 80 2
3/4” x 1/2” 20
3/4” 20 105 18 180 95 2.6
1” x 3/4” 25
1” 25 115 24 215 120 3.2
1”1/4 x 1” 32
1”1/4 32 30
1”1/2 x 1”1/4 40
1”1/2 40 145 38 215 125 7
2” x 1”1/2 50
2” 50 180 48 274 155 12
SIZE-BORE (G) CLASS 2500-10000 Dimensions in mm WEIGHT
Full Reduced DN L ød øD AL HL (Kg)
1/4” 8 85 10 145 75 1.3
3/8” x 1/4” 10
3/8” 10 95 14 180 80 2
1/2” x 3/8” 15
1/2” 15 95 14 180 80 2
3/4” x 1/2” 20
3/4” 20 105 18 180 95 2.6
1” x 3/4” 25
1” 25 115 24 215 120 3.2
1”1/4 x 1” 32
1”1/4 32 30
1”1/2 x 1”1/4 40
1”1/2 40 145 38 215 125 7
2” x 1”1/2 50
2” 50 180 48 274 155 12
Full bore Reduced bore
L
Gød
AL
L
HL
GøD
62. 62 ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
Construction
• B16.34
• BS 5351
• Fire safe system API 607
• Antistatic
• TA-LUFT - 3.1.8.4
Options
• locking device
• extended stem
• Soft seated
ART. 62
Ball valve one pieces body
with integral nipple
Za.Ve.Ro. API 6D/BS 5351 floating ball Valves, full and
reduced bore, are one piece screwed body, side entry,
blowout proof stem, fitted with antistatic device.
Valves are available with nipples and welding ends (BW,
PE, SW).
Available pressure ratings:
800-1500 lbs 3000-6000 psi
Data not included: not applicable. For further details see paragraph Technical Information
SIZE-BORE (G) Dimensions in mm WEIGHT
Full Reduced DN L L1 ød øD AL HL (Kg)
1/2” 15 235 275 14 145 75 1.5
3/4” x 1/2” 20 240 280 14 18 145 70 1.5
3/4” 20 245 285 18 180 80 2.3
1” x 3/4” 25 250 290 18 24 180 90 2.3
1” 25 255 295 24 180 90 2.7
1”1/4 x 1” 32 265 305 30 30 180 90 3.5
1”1/4 32 275 315 30 215 95 6.5
1”1/2 x 1”1/4 40 275 315 30 38 215 110 5.3
1”1/2 40 280 320 38 215 110 7.2
2” x 1”1/2 50 295 335 38 48 215 120 8
2” 50 300 340 48 215 120 11.3
Standard nipples
N=80 mm for stainless steel • N=100 mm for carbon steel
L = lenght with stainless steel nipples
L1 = lenght with carbon steel nipples
Available on request with different nipples lenghts
Full bore Reduced bore
L - L1
N N
AL
HL
øD
ød
63. 63ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
15-01
Construction
• B16.34
• BS 5351
• Fire safe system API 607
• Antistatic
• TA-LUFT - 3.1.8.4
Options
• locking device
• extended stem
• Soft seated
ART. 92
Ball valve one pieces body
with integral nipple
Za.Ve.Ro. API 6D/BS 5351 floating ball Valves, full and
reduced bore, designed for high pressure are one piece
screwed body, side entry, blowout proof stem, fitted with
antistatic device. Valves are available with nipples and
welding ends (BW, PE, SW).
Available pressure ratings:
2500 lbs 10000-15000 psi
Data not included: not applicable. For further details see paragraph Technical Information
SIZE-BORE (G) CLASS 2500-10000 Dimensions in mm WEIGHT
Full Reduced DN L L1 ød øD AL HL (Kg)
1/2” 15 255 295 14 180 80 3
3/4” x 1/2” 20
3/4” 20 265 305 18 180 95 4
1” x 3/4” 25
1” 25 275 315 24 215 120 5
1”1/4 x 1” 32
1”1/4 32 30
1”1/2x1”1/4 40
1”1/2 40 305 345 38 215 125 10.5
2” x 1”1/2 50
2” 50 340 380 48 274 155 18
SIZE-BORE (G) CLASS 15000 Dimensions in mm WEIGHT
Full Reduced DN L L1 ød øD AL HL (Kg)
1/2” 15 265 305 14 180 90 4.5
3/4” x 1/2” 20
3/4” 20 270 310 18 215 130 4.5
1” x 3/4” 25
1” 25 285 325 24 215 145 7.5
1”1/4 x 1” 32
1”1/4 32 30
1”1/2x1”1/4 40
1”1/2 40 330 370 38 274 155 17.5
2” x 1”1/2 50
2” 50 343 383 48 274 155 20.5
Standard nipples
N=80 mm for stainless steel • N=100 mm for carbon steel
L = lenght with stainless steel nipples
L1 = lenght with carbon steel nipples
Available on request with different nipples lenghts
Full bore Reduced bore
ød
L - L1
N N
AL
HL
øD
Commodity
64. 64 ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
ART. 110
Slanting needle valve
Available pressure ratings:
5000-10000 psi
Special execution on request
SIZE-BORE Dimensions in mm
G DN L H
1/2” 8 110 100
L
G
G
H
55°
65. 65ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
15-01
ART. 100
Needle Valve
ART. 120
NeedleValve-90°angleversion
Available pressure ratings:
800 lbs ÷ 3000 psi
Data not included: not applicable. For further details see paragraph Technical Information
SIZE-BORE Dimensions in mm
Full (G) DN ød L L1 H K
1/4” 8 6 75 23 105 120
3/8” 10 6 75 27 115 130
1/2” 15 8 82 29 125 140
3/4” 20 10 90 35 135 145
1” 25 13 110 39 155 160
1” 1/4 32 16 115 50 170 185
1” 1/2 40 20 130 57 190 210
2” 50 24 160 64 210 230
Variant for gas Moving stopper
(on request)
Available from
800-1500 lbs 3000 psi
Maximum operating
temperature 250°C
Options
NPT - GAS
L
H
G
K
ød
L1
G
H
G
K
ød
Commodity
66. 66 ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
Options
NPT - GAS
ART. 130
Needle Valve - monobloc type
ART. 135
Needle Valve - monobloc type
90° angle version
Available pressure ratings:
800 lbs ÷ 15000 psi
Data not included: not applicable. For further details see paragraph Technical Information
SIZE-BORE Dimensions in mm
Full (G) DN ød L low pressure L high pressure L1 H K
1/4” 8 6 75 82 35 110 120
3/8” 10 6 75 82 35 110 120
1/2” 15 7 82 90 40 120 132
3/4” 20 9 105 110 45 125 137
1” 25 13 110 125 50 145 160
1” 1/4 32 16 130 60 165 185
1” 1/2 40 20 130 65 180 200
2” 50 24 160 70 200 220
Available from
800-1500 lbs 3000 psi
Maximum operating
temperature 250°C
L1
G
H
G
K
ød
L
H K
G
ød
67. 67ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
15-01
ART. 160
Gauge bearer valve
Available pressure ratings:
3000 ÷ 6000 psi
Data not included: not applicable. For further details see paragraph Technical Information
SIZE-BORE Dimensions in mm
Full (G) DN ød L H K
1/4” 8 6 70 105 120
3/8” 10 6 70 105 120
1/2” 15 7 70 105 120
Variant for gas
Type A
Type B
Maximum operating
temperature 250°C
L
H K
G G
ød
Options
NPT - Threated ends
Commodity
68. 68 ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
ART. 140
Check valve
Data not included: not applicable. For further details see paragraph Technical Information
Viton seal
for pressure up to PN6
PTFE seal
for pressure PN6 ÷ PN25
PEEK seal
for pressure PN25 ÷ PN64
SIZE-BORE Dimensions in mm
Full (G) DN H
1/4” 8 60
3/8” 10 65
1/2” 15 70
3/4” 20 80
1” 25 90
1” 1/4 32 110
1” 1/2 40 115
2” 50 130
2” 1/2 65
3” 80 200
G
H
Maximum operating pressure PN40
Maximum operating temperature 150°C
Options
NPT-GAS-SW ENDS
69. 69ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
15-01
ART. 145
Ball check valve
monobloc type
Available pressure ratings:
800-1500-2500 lbs
3000-6000-10000-15000 psi
Maximum operating temperature 200°C
Up to 300°C on request
Options
NPT-GAS-SW ENDS
Data not included: not applicable. For further details see paragraph Technical Information
SIZE-BORE Dimensions in mm
Full (G) DN ØD H
1/4” 8 8 90
3/8” 10 8 90
1/2” 15 10 90
3/4” 20 14 110
1” 25 18 127
1” 1/2 40 27 170
2” 50 38 180
Stellited on request
G
H
øD
For vertical installation only
Commodity
70.
71. PAGE
72 Intro
PAGE
73 Construction standards
PAGE
74 Materials
PAGE
75 Ends
PAGE
76 Construction details
Locking device, Seat design, Anti static device
Double O-ring feature, Low fugitive emission, Fire safe
Single and double piston effect, Steam extension cryogenic valves
Steam extension
TECHNICAL
information
72. 72 ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
Materials
Sealing
Seals materials are selected according to the service of the valve and
leakage requirement. Zero leakage is easier obtained by softer seals, while
the resistance to scratches and to other factors (temperature, pressure,
erosion) is obtained by harder seals.
Protective coating
Experienced and approved contractors. Qualified trained and certified
in accordance with most remarkable technical standard for protective
coating.
CRA weld overlay
MIG welding with globular transfer, pulse transfer, and spray transfer.
Corrosion-resistant weld overlays are used to improve the service life of
components made with an otherwise corrosion-prone material.
On request, seat pocket area overlay, seal area overlay, or completed
cladding on wetted surface welded overlays in Inconel 625, Stainless
Steel 316, or Electroless Nickel Plating.
73. 73ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
15-01
API American Petroleum Institute
Spec. 6A Specification for wellhead and christmas tree
equipment
Spec. 6D Specification fot pipeline valves
Spec. RP6F Recommended practice for fire testing of
valves
Spec. 6FA Specification for firetesting of valves
Std. 598 Valve inspection and test
Std. 605 Large diameter carbon steel flanges
Std. 607 Fire test for soft seated quarter-turn valves
ASTM American Society for Testing Materials
01.01 Steel piping, tubing and fittings
01.02 Ferrous casting
Ferro alloys
02.01 Copper and Copper alloys
02.04 Nichel and Nichel alloys
03.01
Metals - Mechanical testing
Elevated & low temperature test
Metallography
03.03 Nondestructive testing
British Standard
BS 1560 Steel pipe flanges and flanged fittings
BS 2080
Face-to-face, centre-to-face, end-to-end,
and centre-to-end dimension of flanged and
butt-welding end steel valves for the
petroleum, petrochemical and allied
industries
BS 4504 Flanges and bolthings for pipes valves and
fittings
BS 5146
Inspection and test of steel valves for
the petroleum, petrochemical and allied
industries
EN ISO 17292 Metal ball valves for the petroleum,
petrochemical and allied industries
BS 6755 Testing of valves
MSS Manufactures Standardization Society
SP 6
Standard finishes for contact faces of pipe flanges
and connecting - end flanges of valves and
fittings
SP 25 Standard marking system for valves fittings,
flanges and unions
SP 44 Steel pipeline flanges
SP 55 Quality standard for steel castings - visual method
SP 61 Hydrostatic testing of steel velves
SP 72 Ball valves with flanged or butt - welding ends for
general service
ISO
International Organization for
Standardization
ISO 9001
Quality systems - Model for quality assurance
in design/development, production, installation
and servicing
NACE
National Association of Corrosion
Engineers
MR-01-75 Sulfide stress cracking resistant metallic
materials for oil field equipment
ANSI American National Standard Institute
ASME American Society of Mechanical Engineers
B16.11 Forged steel fitting socket-welding and threaded
B16.5 Steel pipe flanges and flanged fittings
B16.10 Face-to-face and end to end dimensions of
ferrous valves
B16.25 Butt welding ends
B16.34 Steel valves - Flanged and butt welding ends
B16.47 Large diameter steel flanges (NPS 26 through
NPS 60) Large diameter carbon steel flanges
B31.3 Chemical plant and petroleum refinery piping
system
B31.4 Liquid petroleum transportation piping systems
B31.8 Gas transmission and distribution piping
systems
Construction Standards
Technical information
74. 74 ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
ASTM UNS OTHER DESIGNATION APPLICATIONS
CS
AISI 4140 G41400
A694 F52
A694 F60 API 6A 60K
A694 F65
LTCS
A350 LF2 K03011 -46°C Low
temperatureA350 LF3 K32025 -101°C
Austenitic SS
A182 F304 S30400
Sour service
Cryo (-196°c)
& lt
A182 F316 S31600
A182 F316L S31603
A182 F316Ti S31635
A182 F321 S32100
A182 F347 S34700
A182 F44 (superaustenitic) S31254 6% Mo Cloride service
A182 FX-M19 S20910 NITRONIC 50
Martensitic SS
A F6A S41000 AISI 410 - 13% Cr
A182 F6NM S41500 AISI 415 -70°C
17-4 PH S17400
DSS (Duplex)
A182 F51 S31803 SAF 2205 Marine
environement Sour service
High pressure
A182 F60
A182 F53 (superduplex) S32750 SAF 2507
Subsea
A182 F55 (superduplex) S32760
Special Alloy
B446 N06625 INCONEL 625 H2s (>5%)
very sour
service
N08825 INCOLOY 825
B637 N07718 INCONEL 718
B164 N04400 MONEL 400 Alchylation
N05500 MONEL K500 Alchylation
N06022 HASTELLOY-C22 Hypoclorite service
N10276 ALLOY C276
Other Materials
A387 TITANIUM
B348 C95500 BRONZE
B148 C95800 BRONZE
B151 C70600 BRONZE
B62 BRONZE
StainlessSteelCarbonSteel
Construction materials
DESIGNATION SPECIAL APPLICATION
FKM 90
FKM 90 - AED
(Anti Explosive Decompression)
HNBR Methanol
HNBR - AED
(Anti Explosive Decompression)
Methanol
KALREZ (FFKM) Hi-Temp. (up to
327°C)
ELAST-O-LION 101 (HNBR) Methanol
ELAST-O-LION 985 (HNBR) Low Temp. (up to -46°C)
GLT
ENDURA
StandardsAvailable
Seal materials
BODY MATERIAL STD BOLTING OTHER AVAILABLE
CS B7/2H B7M/2HM
LTCS L7/4 L7M/7M
SS B8/8
B8M/8M
B8M/8M Cl.2
DSS B7/2H HDG
UNS S31803
UNS S32750
UNS S32760
DESIGNATION SPECIAL APPLICATION
RPTFE
(filled with glass or carbongraphite)
DEVLON (NYLON)
PEEK Hi-Temp (up to 230°C)
Hi-Pressure
PCTFE (Kel-F®
) Cryogenic service
VESPEL Very Hi-Temp
(above 300°C)
DELRIN
StandardsAvailable
Bolting materials*
Seat materials**
* Upon request: A453 Gr.660, Monel K500
Treatment like HDG, Zinc Plating, PTFE coating
** All valves have secondary graphite seal. Upon request:
(or in case of special applications) other kind of seals are also available
(Garlock packing, lip-seal, PTFE ring, Chevron packing)
75. 75ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
15-01
SHAPE TYPE DESCRIPTION APPLICATIONS
RF
Raised Face
Sealing on RF flanges is by flat non-
metallic gaskets fitted within the
bolts of the flanges.
Surface finish is controlled
depending on the type of gaskets
being used.
Typically used for low pressure (class
150-300-600)
RJ
Ring Joint
Ring type metal gaskets must be
used on this type of flange facing.
Typically used for high pressure (class
900-1500-2500-API 6A)
May be equipped as per
NORSOK-L005
HUB
This coupling requires bolting,
clamps and seal ring. As different
designs are produced by different
manufacturers we always require
to the customer to supply the HUB
machining drawing.
Typically used for high pressure (class
900-1500- 2500-API 6A)
BW
Butt Welding
This construction offers the highest
verifiable integrity of welding as BW
connections are easy to radiograph.
Different schedules can be supplied.
BW ends are generally used when
the possibility of fluid leakage must
be eliminated.
PE
Plain Ends
This kind of welding end match to
the SW end.
Typically used for applications where
no extremely hazardous fluids neither
fluids with tendency for crevice
corrosion are present.
SW
Socket Welding
This kind of welding end match to
the PE end.
NPT (M)
Threaded joints as per American
National Taper
Typically used on commodity valves.
NPT (M)
Others available:
BSP (ISO 228/1 e ISO 7/1), flat face,
large female, large groove, compact flange, sae.
FLANGEDCLAMPTHREADEDWELDED(WE)
Ends
Technical information
76. 76 ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
Locking device Gear and lever operated - optional
Locking device, to use both in open
and in close position is suitable to
receive padlock.
Open Close
Anti static device - standard
Floating type Floating and Trunnion type Trunnion type
Anti static gasket grants conductivity
between body and stem.
Anti static ball with spring grants
conductivity between body and stem.
Antistatic device between ball and
stem is a direct metal contact.*
Seat design - standard
Metal seated valves are recommended for abrasive service
and for the higher operating temperatures.
Ball and seat rings contact surfaces are with tungsten or
chrome carbide coating.
Soft seated valves are provided with a metal seat ring
which is sealing against the ball by means of a resilient
insert and against the body by a seat gasket.
77. 77ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
15-01
Low fugitive emission Stem packing according to ISO 15848 - optional
* On request: ball with spring option can
also be done between ball and stem.
Double O-Ring feature - optional
When non-metal parts are destroyed in a fire, the upstream medium pressure push the ball into the downstream metal
seat lip and the stem to the body preventing leakage due to a secondary metal-to-metal seals.
For all static seals and on the stem for trunnion execution the fire safe is provided by a secondary graphite sealing.
Fire safe Designed in accordance with API 607 - standard
Gear operated or bare stem
Vent Bleeder Drain plug Seat Grase / Sealant injector
Lever operated
Floating type Floating and Trunnion type Trunnion type
Technical information
78. 78 ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
DN H
1” 150
1” 1/2 150
2” 200
3” 250
4” 300
6” 300
8” 300
10” 300
≥12” 300
DN H
1/2” 150
3/4” 150
1” 150
1” 1/4 150
1” 1/2 150
2” 200
2” 1/2 200
3” 250
4” 300
6” 300
The pressure in body cavity Pc and the gap “a” produce
the force “Fc” that pushes away the seat from the ball and
the body cavity pressure can relief in flow line
The pressure in body cavity Pc and the gap “a” produce
the force “Fc” that pushes away the seat from the ball and
the body cavity pressure can relief in flow line
The pressure upstream P and the gap “a” produce the
force “F” that pushed seat against the ball
The pressure upstream P and the gap “a” produce the
force “F” that pushed seat against the ball
Single piston effect (self relieving)* Uni-directional seat - standard
Double piston effect * Bi-directional seat - optional
Art. 175 Art. 185
H
H
Stem extension** Cryogenic design - standard for cryogenic execution
Floating type Trunnion type
Fc
Fc
F
F
P
P
aa
aa
Pc
Pc
79. 79ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
15-01
* On request: Ball valves can be supplied
with both seats uni-directional, both seats
bi-directional or a combination of the two.
** On request: Special lenght
or according to MS SP134
H 30 50 80 100 (max)
Stop sector and
locking device
Type A
H
H 80 100 150 200
Type B
Stop sector and
locking device
H
H 30 50 80 100 (max)
Locking device
Stop sector
Type C
H
Increased height gland flange 50 80 100 (max)
Up to extension with L=100 Gland flange
will be made with increased height
Type A
H 150 200 250 300
Type B
H
Stem extensionSpecial lenght upon request
Trunnion typeFloating type
Technical information
80.
81.
82. Where we are
Za.ve.ro. srl
Via dei Martiri 121/B, 28078 Romagnano Sesia
Tel +39 0163 41 13 37 Fax +39-0163 411322
sales@zavero.com ww.zavero.com
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valves
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84. 84 ZA.VE.RO. srl reserves to itself the right to make all necessary changes on its products, without notice. Further information on www.zavero.com
Zavero srl, Via dei Martiri 121/B, 28078 Romagnano Sesia, ITALY
Phone +39 0163 41 13 37 sales@zavero.com www.zavero.com
leadi
ngproductionofindustrialball
valves
Za
.ve.ro. srl since197
3