We have Diaphragm type Differential Pressure Switches. These gauges are more in demand for DP control applications in HVAC / across Heat Exchangers / across Pumps / across Filters / across Strainers, Level Control applications in pressurized tanks, Ranges : from 0 to 150 mm WC up to 0 to 7 bar Differential : Fixed Accuracy : +/- 1% FS Temperature Range : -10 to 80 Degree C (for high-temperature use of impulse tube is advisable) Migration : Impossible No. of Switches : One or, Two. Type of Switches : Micro Switches - SPDT, 5 A 250 V AC Enclosure class : IP 54, IP 65, IP 66 or, Flameproof Pressure Housing : MS or, SS Sensing Diaphragm : Neoprene or, Teflon Process Connection : ¼” BSP-F (Standard)

1. MT High Range DP
C A T A L O G U E
BULLETIN NO. : KA161007
Website : http://www.orion-instruments.com
Kaustubha Udyog AN ISO9001:2008 COMPANY
S. No. 36/1/1, Sinhgad Road, Vadgaon Khurd,
Near Lokmat Press, Pune 411 041 INDIA
Tel.
Telefax
Email
: +91-(0) 20-24393577 / 24393877
: +91-(0) 20-24393577 / 25460486
: pressure@vsnl.com
PRESSURE SWITCHES
PRESSURE DIFFERENCE SWITCHES
VACUUM SWITCHES
From 1.5 mbar to 600 bar
Certificate No.: FM72815

2. PRESSURE CAPSULE DETAILS
Note : wetted parts are mentioned in italics. *Presure ports are brazed with flange
HIGH RANGE DP
75
BULLETIN NO. : KA161007
MT
2
INSTALLATION DRAWING
APPROX. DIMENSIONS IN
mm
inches
1
4
5
2
3
Description
Pressure Housing
Diaphragm
Plunger
O-Ring
Disc
No.
1.
2.
3.
4.
5.
31
(1.22)
51
(2.0)
87
(3.42)
165
(6.49)
98
(3.85)
Mounting Holes Ø7
2 Nos.
149
(5.86)
130
(5.11)
51
(2.0)
Cable Entry
1/2" NPT or M20x1.5
High Pressure
Port
1/4" BSP (F)
50.8 Sq.
(2.0)
Low Pressure Port
1/4" BSP (F)
48
(1.88)
31
(1.22)

3. HIGH RANGE DP MT
75
BULLETIN NO. : KA161007
3
RANGE SELECTION TABLE
D01
D02
D03
D04
D07
D10
D15
D30
0.1 - 1.0
(1.45 - 14.50)
0.1 - 1.5
(1.45 - 21.76)
0.2 - 2.6
(2.90 - 37.71)
0.2 - 3.6
(2.90 - 52.21)
0.5 - 7.0
(7.25 - 101.50)
0.5 - 10.0
(7.25 - 145.04)
1.0 - 15.0
(14.50 - 217.71)
5.0 - 25.0
(72.52 - 362.6)
Differential* bar (psi)
70
(1015.26)
70
(1015.26)
70
(1015.26)
70
(1015.26)
70
(1015.26)
70
(1015.26)
70
(1015.26)
70
(1015.26)
Range Code Range
bar (psi)
Maximum
Working Pressure
bar (psi)
*Minimum differential increases with setpoint (Graphs available on request)
* Note :
Microswitches A2 through A9 can be supplied in some ranges and differentials will vary with microswitch used.
Please contact sales office for details. Please check availability of adjustable differential with sales office.
0.12
(1.74)
0.20
(2.90)
0.20
(2.90)
0.30
(4.35)
0.40
(5.80)
0.50
(7.25)
0.50
(7.25)
0.80
(11.60)
Approximate
Maximum
for "A1"
microswitch

4. HIGH RANGE DP
75
BULLETIN NO. : KA161007
MT
4 75
HOWTOORDERINDUSTRIALHIGHRANGEDPSWITCHES
Nonstandard
allocation
ModelCableEntrySizeSwitchTypeRangeCode
(valuesinbar)
Microswitch
Type
Diaphragm
Group1Group2Group3Group4Group5Group6Group8Group7
0=
Neoprene
1=
Teflon
2=
SS316L
Group1Group2Group3Group4Group5Group6Group8Group7
MT1DF1D01A10S1
MT=
Industrial
pressureswitch
withdiecast
Aluminium
enclosureto
IP66asper
IS/IEC60529
Reservedfor
non-standard
optionsnot
coveredin
catalogue.Will
begivenby
manufacturer,
onlyafter
agreementof
supplydetails
withcustomer.
1=
½“NPTthreads
3=
M20X1.5
threads
A1=
Generalpurpose
microswitch
ratedat
15A;250VAC
A2=
Hermetically
sealedfor
corrosive
environments
A3=goldplated
contactsforlow
voltage
applications
A4=DPDT
configuration
A5=forhighDC
ratings
A7=2SPDT
switching
elements
A9=General
purpose
miccroswitch
ratedat5A;250
VAC
Pleasespecifyfullmodelnumbertoavoidambiguity.
eg.Ahighrangepressuredifferenceweatherproofswitch,with½"NPTcableentryinaluminiumhousingas1SPDTpressureswitch,fixeddifferentialwithoutscale,having0.1barto1bar
pressurerange,with15Amp.microswitch,SS316pressurehousingwith¼”BSPportsize&neoprenediaphragmshallbespecifiedby
D01=
(0.1-1.0)
D02
(0.1-1.5)
D03=
(0.2-2.6)
D04=
(0.2-3.6)
D07=
(0.5-7.0)
D10=
(0.5-10.0)
D15=
(1.0-15.0)
D30=
(5.0-25.0)
A1=
Aluminium/
¼"BSP(F)
A2=
Aluminium/
¼”NPT(F)
S1=
SS316/
¼"BSP(F)
S2=
SS316/
¼”NPT(F)
PressurePort
Material/Size
DF2=pressure
differenceswitch,
fixeddifferentialwith
scaleinbar
DF3=pressure
differenceswitch,
fixeddifferentialwith
scaleinpsi
*DA2=pressure
differenceswitch,
adjustabledifferential
withscaleinbar
*DA3=pressure
differenceswitch,
adjustabledifferential
withscaleinpsi
*AvailablewithA9
(ingroup6)only