Pressure Seal Gate Valves

The Gold Standard in The Industry

YVI’s Cast Steel Pressure Seal Gate Valves are the quintessential choice for industry professionals demanding uncompromised sealing efficiency and durability. These valves feature seal-welded seat rings that ensure a tight seal and gland eye bolt pins welded on both ends for added structural integrity. Equipped with API 622 certified graphite stem packing, they offer exceptional leakage control.

Pressure Valve 10 900 LCC copy Gear Operator Wedge Guides Butt-Weld End Connections

Pressure Seal Gate Valve

Design Features

  • API 624 / ISO 15848-1 Low Fugitive Emission Compliant
  • Flexible Wedge (Standard on all Sizes and Pressure Classes)
  • Seal Welded Seat Rings
  • 26” and Larger Items have Hard-faced Wedge Guides

Optional Features

Live Loaded Gland Flange and/or Bonnet Studs
Optional Double Packing With Lantern Ring
Optional Parallel Slide Design
  • Optional Stem Extension
  • Optional Double Packing with Lantern Ring
  • Optional Live Loaded Gland Flange
  • Optional Bellow Seal
Pressure Seal Gate Valve

YVI Cast Steel Pressure Seal Valves are designed, manufactured, and tested in accordance with ASME B16.34, API 594, API 600, API 623, BS1868, MSS SP-144, and API 598. YVI offers size ranges from 2” through 48” diameters in pressure classes 600# through 2500# with end connections in either RFFE, RTJ, and Buttweld. Common materials of construction such as WCB, LCB, LCC, WC6, WC9, and C5 are all available along with other materials upon request. To assure casting quality, all pressure-containing castings are produced in-house.

Parts & Available Materials
No. Part Carbon Steel Stainless Steel Low Temperature High Temperature NACE Service
1 Body ASTM A216 WCB ASTM A351 CF8M ASTM A352 LCC ASTM A217 WC9 ASTM A216 WCB
2 Seat Ring ASTM A105N + HF ASTM A182 F316+HF ASTM A350 LF2+HF ASTM A182 F22 + HF ASTM A105N + HF
3 Flexible Wedge ASTM A216 WCB + Cr13 ASIM A351 CF8M ASTM A352 LCC ASTM A217 WC9 + Cr13 ASTM A216 WCB + Cr13
4 Stem ASTM A182 F6a ASTM A182 F316 ASTM A182 F316 ASTM A182 F6a ASTM A182 F6a (NACE)
5 Bonnet ASTM A105N ASTM A182 F316 ASTM A350 LF2 ASTM A182 F22 ASTM A105N
6 Sealing Ring SS304 + Graphite
SS316L		 SS316 + Graphite
SS316L		 SS316 + Graphite
SS316L		 SS304 + Graphite
SS316L		 SS304 + Graphite
SS316L
7 Pressure Ring ASTM A276 410 ASTM A276 316 ASTM A276 316 ASTM A276 410 ASTM A276 410 (NACE)
8 Segment Ring ASTM A182 F6a ASTM A182 F316 ASTM A182 F316 ASTM A182 F6a ASTM A182 F6a (NACE)
9 Support Plate ASTM A216 WCB ASTM A351 CF8M ASTM A352 LCC ASTM A217 WC9 ASTM A216 WCB
10 Packing Graphite Graphite Graphite Graphite Graphite
11 Box-Plate Bolt ASTM A193 B7 ASTM A193 B8 ASTM A320 L7 ASTM A193 B16 ASTM A193 B7M
12 Box-Plate Nut ASTM A194 2H ASTM A194 8 ASTM A194 7 ASTM A194 7 ASTM A194 2HM
13 Bolt ASTM A193 B7 ASTM A193 B8 ASTM A320 L7 ASTM A193 B16 ASTM A193 B7M
14 Nut ASTM A194 2H ASTM A194 8 ASTM A194 7 ASTM A194 7 ASTM A194 2HM
15 Gland Flange Seat ASTM A105N ASTM A182 F316 ASTM A350 LF2 ASTM A182 F22 ASTM A105N
16 Gland ASTM A276 410 ASTM A276 316 ASTM A276 316 ASTM A276 410 ASTM A276 410 (NACE)
17 Gland Flange ASTM A216 WCB ASTM A351 CF8M ASTM A352 LCC ASTM A217 WC9 ASTM A216 WCB
18 Gland Eye Bolt ASTM A193 B7 ASTM A193 B8 ASTM A320 L7 ASTM A193 B16 ASTM A193 B7M
19 Gland Eyebolt Nut ASTM A194 2H ASTM A194 8 ASTM A194 7 ASTM A194 7 ASTM A194 2HM
20 Yoke ASTM A216 WCB ASTM A351 CF8M ASTM A352 LCC ASTM A217 WC9 ASTM A216 WCB
21 Stem Nut ASTM A439 D-2 ASTM A439 D-2 ASTM A439 D-2 ASTM A439 D-2 ASTM A439 D-2
22 Grease Nipple Carbon Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel
23 Retaining Nut Carbon Steel Stainless Steel Stainless Steel Carbon Steel Carbon Steel
24 Handwheel Ductile Iron Ductile Iron Ductile Iron Ductile Iron Ductile Iron
25 Screw Carbon Steel Stainless Steel Stainless Steel Carbon Steel Carbon Steel
26 Handwheel Nut Carbon Steel Stainless Steel Stainless Steel Carbon Steel Carbon Steel

Material list, other materials available/provided.

Our integrated manufacturing allows us to FAST TRACK your order.
We’ve got your Valves ready to go!

Dimension Data

Class 600

NPS in 2” 2 1/2” 3” 4” 5” 6” 8” 10” 12” 14” 16” 18” 20” 24” 26” 28” 30”
L(BW) in 7 8.5 10 12 15 18 23 28 32 35 39 43 47 55 – – –
mm 178 216 254 305 381 457 584 711 813 889 991 1092 1194 1397 – – –
L1(RF) in 11.5 13 14 17 20 22 26 31 33 35 39 43 47 55 57 61 65
mm 292 330 356 432 508 559 660 787 838 889 991 1092 1194 1397 1418 1549 1651
L2(RTJ) in 12 13.1 14.1 17.1 20.1 22.1 26.1 31.1 33.1 35.1 39.1 43.1 47.2 55.4 58 62 66
mm 295 333 359 435 511 562 663 790 841 892 994 1095 1200 1407 1461 1562 1664
W in 7.9 9.8 9.8 13.8 15.7 17.7 21.3 21.3 24 24 24 24 24 24 32 32 394
mm 200 250 250 350 400 450 540 540 610 610 610 610 610 610 800 800 1000
H in 23.2 24.8 26.3 36 39.4 42.5 48.1 59.5 70.5 73.1 85.1 88.6 97.3 118.1 128 137.9 149
mm 589.3 629.9 668 914.4 1000.8 1079.5 1222 1511.3 1790.7 1856.7 2161.5 2250.4 2471.4 2999.7 3251.2 3502.7 3784.6
WT(RF) kg 70 95 100 149 208 245 320 430 515 670 905 1150 1445 2080 2445 2895 3250
WT(BW) kg 62 80 84 115 150 171 215 268 318 435 570 720 890 1285 1510 1750 2010

Class 900

NPS in 2” 2 1/2” 3” 4” 6” 8” 10” 12” 14” 16” 18” 20” 24” 26” 28” 30”
L(BW) in 8.5 10 12 14 20 26 31 36 39 43 48 52 61 65 68 72
mm 216 254 305 356 508 660 787 914 991 1092 1219 1321 1549 1651 1727.2 1816.1
L1(RF) in 14.5 16.5 15 18 24 29 33 38 40.5 44.5 48 52 61 – – –
mm 368 419 381 457 610 737 838 965 1029 1130 1219 1321 1549 – – –
L2(RTJ) in 14.6 16.6 15.1 18.1 24.1 29.1 33.1 38.1 40.9 44.9 48.5 52.5 61.8 – – –
mm 371 422 384 460 613 740 841 968 1039 1140 1232 1333 1570 – – –
W in 10 10 15.7 15.7 22 21.3 21.3 21.3 24 24 32 32 394 39.4 394 39.4
mm 254 254 400 400 560 540 540 540 610 610 810 810 1000 1000 1000 1000
H in 23 25 22.3 25 40 51.7 56.6 63.5 70.9 79.5 97.3 100 127.6 138.3 149 159.5
mm 584.2 640 560 635 1016 1312 1437 1612 1800 2020 2471.4 2541 3241 3512.8 3784.6 4051.3
WT(RF) kg 63 99 107 158 294 693 1008 1418 1785 2520 3820 4400 6770 – – –
WT(BW) kg 42 67 70 108 194 520 772 1103 1470 2048 2730 3685 5430 6370 7385 8480

Class 1500

NPS in 2” 2 1/2” 3” 4” 6” 8” 10” 12” 14” 16” 18” 20” 24”
L(BW) in 8.5 10 12 16 22 28 34 39 42 47 53 58 66
mm 216 254 305 406 559 711 864 991 1067 1194 1346 1473 1676.4
L1(RF) in 14.5 16.5 18.5 21.5 27.8 32.8 39 44.5 49.5 54.5 60.5 65.5 76.5
mm 368 419 470 546 705 832 991 1130 1257 1384 1537 1664 1943
L2(RTJ) in 14.6 16.6 18.6 21.6 28 33.18 39.4 45.1 50.3 55.4 61.4 66.4 77.6
mm 371 422 473 549 711 842 1000 1146 1278 1407 1559.6 1686.6 1971
W in 11.8 13.8 15.7 20 18.1 18 24 24 24 32 32 394 39.4
mm 300 350 400 500 460 460 610 610 610 810 810 1000 1000
H in 20.4 22.6 24 27.3 42.6 51 59.1 66.1 74.2 84.8 111.1 122.1 148.3
mm 517 575 611 694 1081 1295 1502 1679 1885 2155 2821.9 31013 3766.8
WT(RF) kg 63 99 126 218 504 956 1481 2184 2741 3780 5960 7370 10610
WT(BW) kg 42 67 87 150 367 718 1071 1523 1890 2888 4630 5720 8240

Class 2500

NPS in 2” 2 1/2” 3” 4” 6” 8” 10” 12” 14” 16” 18” 20” 24”
L(BW) in 11 13 14.5 18 24 30 36 41 44 49 55 61 68
mm 279 330 368 457 610 762 914 1041 1118 1245 1397 1549 1727
L1(RF) in 17.8 20 22.8 26.5 36 40.3 50 56 – – – – –
mm 451 508 578 673 914 1022 1270 1422 – – – – –
L2(RTJ) in 17.9 20.3 23 26.9 36.5 40.8 50.9 56.9 – – – – –
mm 454 514 584 683 927 1038 1292 1445 – – – – –
W in 11.8 12.2 12.2 18.1 18.1 24 24 32 24 24 32 32 394
mm 300 310 310 460 460 610 610 810 610 610 810 810 1000
H in 20.7 27.8 27.8 35.5 44.5 55 55.8 71.1 94 97.3 116.1 128.8 153.6
mm 527 707 707 901 1130 1397 1468 1806 2388 2471 2949 3272 3901
WT(RF) kg 89 142 173 346 851 1386 2493 3091 – – – – –
WT(BW) kg 53 95 100 200 488 850 1680 2330 3400 4200 5000 6170 8880

All technical data is subject to change without notice.