Double block bleed valves isolate lines
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Double Block and Bleed Valves require two in-line isolation valves and a bleed valve, used to drain or vent trapped fluid between the two closure elements in order to safely isolate safely the downstream pipe. This feature can be achieved with one single valves c/w a bleed port between the obturators.
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Double block bleed valves isolate lines
- 1. Double block and bleed valves Via delle Industrie, 9/5 - 20883 Mezzago (MB) ITALY valbartsales@flowserve.com Phone: +39 039 624111 - Fax: +39 039 6241178 www.valbart.com For Information on Valbart Specialized valves, please refer to the following leaflets: ©2011ValbartSrl-AllRightsReserved.-VBENBR1004
- 2. ADVANTAGES •Space and weight saving •Cost saving (product & installation) •Minimized leak paths •Increased line structural integrity •ESDV+MOV or ESDV+XV configurations •Increasesd reliability of the system MAIN APPLICATIONS •Offshore oil & gas production •Gas & oil terminals •Chemical & Petrochemical •Refining •Fiscal Metering Skid Manufacturing •LNG gas carrier •Process/ Power industry contractors CHARACTERISTICS •Anti blow out/low emission stems •Fire safe & anti-static design •Independent ball and stem •Self aligning trims •Self relieving/ Double piston effect floating seats •Soft or metal seated The “Double Block and Bleed Isolation Philosophy” requires two in-line isolation valves and a bleed valve, used to drain or vent trapped fluid between the two closure elements in order to safely isolate safely the downstream pipe. This feature can be achieved with one single valves c/w a bleed port between the obturators. Design is available in side entry, (bolted, welded body) and for onshore, offshore (top side) or sub-sea configurations. Bleed/Vent system can be provided with Globe, Gate or Ball valves as per customers requirement. Double block and bleed valves Double block and bleed valves SIZE (in) 2 3x2 3 4x3 4 6x4 6 8x6 8 10x8 10 12x10 12 14 16x12 16 18 20x16 20 24x20 24 49 74 74 100 100 150 150 201 201 252 252 303 303 334 385 385 436 487 487 589 589 49 49 74 74 100 100 150 150 201 201 252 252 303 334 334 385 436 436 487 487 589 165 210 210 373 273 356 356 419 419 510 510 560 575 628 686 700 774 815 865 940 1028 102 102 165 165 210 210 250 250 288 288 330 330 378 394 378 430 467 430 500 500 594 98 98 128 128 160 160 200 200 255 255 308 308 348 360 348 410 430 410 492 492 570 528 587 627 703 679 806 873 975 1020 1147 1264 1314 1380 1494 1533 1644 1790 1850 1985 2192 2207 47 47 93 117 170 225 380 438 728 880 1137 1379 1601 1516 1887 2135 2933 3128 3693 4547 6630 49 74 74 100 100 150 150 201 201 252 252 303 303 334 385 385 436 487 487 589 589 49 49 74 74 100 100 150 150 201 201 252 252 303 334 334 385 436 436 487 487 589 216 241 241 292 292 381 381 470 470 545 545 610 610 640 705 710 800 790 890 1040 1059 104 103 163 166 211 208 259 263 297 294 342 348 384 398 400 436 484 439 532 534 617 103 102 132 127 169 163 213 213 264 269 333 328 379 368 382 437 497 442 503 500 633 584 574 643 719 734 857 924 1051 1096 1197 1314 1441 1507 1640 1679 1790 2017 1850 2109 2240 2368 82 88 94 152 232 328 576 660 928 1035 1515 1733 2114 2175 2422 3225 4230 3738 6300 7020 8840 49 74 74 100 100 144 144 192 192 239 239 287 287 315 360 360 405 455 455 530 530 49 49 74 74 100 100 144 144 192 192 239 239 287 315 315 360 405 405 455 455 530 216 267 267 311 311 394 394 483 483 585 585 709 709 765 848 848 980 1015 1015 1293 1293 106 104 167 166 179 213 260 265 304 297 363 360 417 437 424 475 563 484 617 624 698 104 103 128 128 170 168 233 229 290 287 352 347 425 426 422 493 608 502 645 643 724 584 660 660 787 787 944 1010 1140 1194 1353 1435 1581 1664 1854 1925 2042 2184 2161 2450 2575 2720 95 129 184 207 356 485 816 906 1312 1431 2250 2288 3150 3990 3640 5698 8673 6676 11798 14138 18564 A B CLASS # 600 C D E L W (Kg) A B C CLASS # 900 D E L W (Kg) A B C CLASS # 1500 D E L W (Kg) 2”- 48” 2” - 36” 2” - 24” * Larger size available upon request * Length C does not include the length of the bleed plug 150# - 600# 900# - 1500# 2500# Available in the following size •All dimensions except where other wise specified are in mm. •Weight figures are relevant to flanged end valves. •Note: For dimensions and weights in larger sizes consult the factory. •Dimensions C, D, E, and weights are subject to change without notice. •Face-to-face dimensions not listed in industry standards are subject to change without notice.