
API 800lb Forged Carbon/Stainless Steel Flange/Thread/Socket Welding OS&Y Gate Valve for Water/Oil/Gas Valve Check Valve Globe Valve
Product Introduction
We hope that customers can give us feedback on your thoughts and feelings of use, which can prompt us to improve our Flange Ball Valve, Sight Glass With Mesh, Stainless Steel Lift Check Valve, so as to become the cornerstone of our long-term development. We now have strict excellent regulate procedures for each process. We pay high attention to customer service, and cherish every customer.
Name | Material | ||||||||
Body/Bonnet | CF8 | CF3 | CF8M | CF3M | WCB | LCB | WC6 | WC9 | C5 |
Wedge | CF8 | CF3 | CF8M | CF3M | WCB | LCB | WC6 | WC9 | C5 |
Stem | F304 | F304L | F316 | F316L | 2CR13 | F304 | F304 | F304 | F304 |
Stem Nut | Aluminium Bronze | ||||||||
Packing | PTFF | Graphite | |||||||
Gasket | PTFF | Graphite | |||||||
Gland | CF8 | CF3 | CF8M | CF3M | WCB | LCB | WC6 | WC9 | C5 |
Bolt | Stainless Steel | 35CrMoA | |||||||
Nut | Stainless Steel | 45,35CrMoA | |||||||
Handwheel | Cast Steel | ||||||||
Gate Valve GB/T12234 Metal Seated For Fuel Oil Water

Standards
Design and manufacture as GB/T12234 Face to face dimensions as GB/T12221
End flange dimension as JR/T79 Pressure test as JB/T9092
Test Pressure
Test Item | Shell Test | Seal Test | Back Seal Test | Air Seal Test | |
Medium | Water | Air | |||
Unit | MPa | MPa | MPa | MPa | |
Nominal Pressure PN(MPa) | 1.0 | 1.5 | 1.1 | 1.1 | 0.5-0.7 |
1.6 | 2.4 | 1.8 | 1.8 | ||
2.5 | 3.8 | 2.8 | 2.8 | ||
4.0 | 6.0 | 4.4 | 4.4 | ||
6.4 | 9.6 | 7.0 | 7.0 | ||
10.0 | 15.0 | 11.0 | 11.0 | ||
16.0 | 24.0 | 18.0 | 18.0 | ||
Materials for Main Parts

Main Connection Dimensions
Dimensions | |||||||||
Type | DN(mm) | L | D | Dl | D2 | b-f | z-ød | H | Do |
H Z41W-10 Y H Z641W-10 Y H Z941W-10 Y | 15 | 130 | 95 | 65 | 45 | 12-2 | 4-ø14 | 185 | 120 |
20 | 150 | 105 | 75 | 55 | 14-2 | 4-ø14 | 200 | 120 | |
25 | 160 | 115 | 85 | 65 | 14-2 | 4-ø14 | 225 | 140 | |
32 | 180 | 135 | 100 | 78 | 16-2 | 4-ø18 | 275 | 160 | |
40 | 165 | 145 | 110 | 85 | 16-3 | 4-ø18 | 290 | 160 | |
50 | 180 | 160 | 125 | 100 | 16-3 | 4-ø18 | 345 | 200 | |
65 | 195 | 180 | 145 | 120 | 18-3 | 4-ø14 | 360 | 220 | |
80 | 210 | 195 | 160 | 135 | 18-3 | 4-ø18 | 380 | 240 | |
100 | 230 | 215 | 180 | 155 | 20-3 | 8-ø18 | 430 | 280 | |
125 | 255 | 245 | 210 | 185 | 22-3 | 8-ø18 | 520 | 300 | |
150 | 280 | 280 | 240 | 210 | 22-3 | 8-ø23 | 600 | 320 | |
200 | 330 | 335 | 295 | 265 | 22-3 | 8-ø23 | 765 | 400 | |
250 | 380 | 390 | 350 | 320 | 24-3 | 12-ø23 | 930 | 450 | |
300 | 420 | 440 | 400 | 368 | 26-3 | 12-ø23 | 1080 | 500 | |
350 | 450 | 500 | 460 | 428 | 26-4 | 16-ø23 | 1200 | 500 | |
400 | 480 | 565 | 515 | 482 | 26-4 | 16-ø35 | 1400 | 550 | |
450 | 510 | 615 | 565 | 532 | 26-4 | 20-ø25 | 1500 | 600 | |
500 | 540 | 670 | 620 | 585 | 28-4 | 20-ø25 | 1630 | 650 | |
H Z41W-16 Y H Z641W-16 Y H Z941W-16 Y | 15 | 130 | 95 | 65 | 45 | 14-2 | 4-ø14 | 185 | 120 |
20 | 150 | 105 | 75 | 55 | 14-2 | 4-ø14 | 200 | 120 | |
25 | 160 | 115 | 85 | 65 | 14-2 | 4-ø14 | 225 | 140 | |
32 | 180 | 135 | 100 | 78 | 16-2 | 4-ø18 | 275 | 160 | |
40 | 200 | 145 | 110 | 85 | 16-3 | 4-ø18 | 295 | 200 | |
50 | 250 | 160 | 125 | 100 | 16-3 | 4-ø18 | 350 | 220 | |
65 | 265 | 180 | 145 | 120 | 18-3 | 4-ø18 | 370 | 240 | |
80 | 280 | 195 | 160 | 135 | 20-3 | 8-ø18 | 390 | 280 | |
100 | 300 | 215 | 180 | 155 | 20-3 | 8-ø18 | 435 | 300 | |
125 | 325 | 245 | 210 | 185 | 22-3 | 8-ø18 | 520 | 320 | |
150 | 350 | 280 | 240 | 210 | 24-3 | 8-ø23 | 610 | 350 | |
200 | 400 | 335 | 295 | 265 | 26-3 | 12-ø23 | 785 | 400 | |
250 | 450 | 405 | 355 | 320 | 30-3 | 12-ø25 | 930 | 450 | |
300 | 500 | 460 | 410 | 375 | 30-4 | 12-ø25 | 1080 | 500 | |
350 | 550 | 520 | 470 | 435 | 34-4 | 16-ø25 | 1200 | 550 | |
400 | 600 | 580 | 525 | 485 | 36-4 | 16-ø30 | 1400 | 600 | |
450 | 650 | 640 | 585 | 545 | 40-4 | 20-ø30 | 1500 | 650 | |
500 | 700 | 705 | 650 | 608 | 44-4 | 20-ø34 | 1630 | 700 | |
H Z41W-25 Y H Z641W-25 Y H Z941W-25 Y | 15 | 130 | 95 | 65 | 45 | 16-2 | 4-ø14 | 185 | 120 |
20 | 150 | 105 | 75 | 55 | 16-2 | 4-ø14 | 200 | 120 | |
25 | 160 | 115 | 85 | 65 | 16-2 | 4-ø14 | 225 | 140 | |
32 | 180 | 135 | 100 | 78 | 18-2 | 4-ø18 | 275 | 160 | |
40 | 200 | 145 | 110 | 85 | 18-3 | 4-ø18 | 295 | 200 | |
50 | 250 | 160 | 125 | 100 | 20-3 | 4-ø18 | 350 | 220 | |
65 | 265 | 180 | 145 | 120 | 22-3 | 8-ø18 | 370 | 240 | |
80 | 280 | 195 | 160 | 135 | 22-3 | 8-ø18 | 390 | 280 | |
100 | 300 | 230 | 190 | 160 | 24-3 | 8-ø23 | 435 | 300 | |
125 | 325 | 270 | 220 | 188 | 28-3 | 8-ø25 | 520 | 320 | |
150 | 350 | 300 | 250 | 218 | 30-3 | 8-ø25 | 610 | 350 | |
200 | 400 | 360 | 310 | 278 | 34-3 | 12-ø25 | 785 | 400 | |
250 | 450 | 425 | 370 | 332 | 36-3 | 12-ø30 | 930 | 450 | |
300 | 500 | 485 | 430 | 390 | 40-4 | 16-ø30 | 1080 | 500 | |
350 | 550 | 550 | 490 | 448 | 44-4 | 16-ø34 | 1250 | 550 | |
400 | 600 | 610 | 550 | 505 | 48-4 | 16-ø34 | 1430 | 600 | |
450 | 650 | 660 | 600 | 555 | 50-4 | 20-ø34 | 1520 | 650 | |
500 | 700 | 730 | 660 | 610 | 52-4 | 20-ø41 | 1650 | 700 | |
Dimension(mm) | ||||||||||
Type | DN(mm) | L | D | Dl | D2 | D6 | b-f | fl | z-ød | H |
H Z41W-40 Y H Z641W-40 Y H Z941W-40 Y | 15 | 130 | 95 | 65 | 45 | 40 | 16-2 | 4 | 4-ø14 | 185 |
20 | 150 | 105 | 75 | 55 | 51 | 16-2 | 4 | 4-ø14 | 200 | |
25 | 160 | 115 | 85 | 65 | 58 | 16-2 | 4 | 4-ø14 | 225 | |
32 | 180 | 135 | 100 | 78 | 66 | 18-2 | 4 | 4-ø18 | 275 | |
40 | 200 | 145 | 110 | 85 | 76 | 18-3 | 4 | 4-ø18 | 295 | |
50 | 250 | 160 | 125 | 100 | 88 | 20-3 | 4 | 4-ø18 | 350 | |
65 | 280 | 180 | 145 | 120 | 110 | 22-3 | 4 | 8-ø18 | 370 | |
80 | 310 | 195 | 160 | 135 | 121 | 22-3 | 4 | 8-ø18 | 390 | |
100 | 350 | 230 | 190 | 160 | 150 | 24-3 | 4.5 | 8-ø23 | 435 | |
125 | 400 | 270 | 220 | 188 | 176 | 28-3 | 4.5 | 8-ø25 | 520 | |
150 | 450 | 300 | 250 | 218 | 204 | 30-3 | 4.5 | 8-ø25 | 610 | |
200 | 550 | 375 | 320 | 282 | 260 | 38-3 | 4.5 | 12-ø30 | 970 | |
250 | 650 | 445 | 385 | 345 | 313 | 42-3 | 4.5 | 12-ø34 | 930 | |
300 | 750 | 510 | 450 | 408 | 364 | 46-4 | 4.5 | 16-ø34 | 1080 | |
350 | 850 | 570 | 510 | 465 | 422 | 52-4 | 5 | 16-ø34 | 1250 | |
400 | 950 | 655 | 585 | 535 | 474 | 58-4 | 5 | 16-ø41 | 1430 | |
450 | 1050 | 680 | 610 | 560 | 524 | 60-4 | 5 | 20-ø41 | 1520 | |
500 | 1150 | 755 | 670 | 612 | 576 | 62-4 | 5 | 20-ø48 | 1650 | |
Main Connection Dimensions
Dimensions | ||||||||||
Type | DN(mm) | L | D | Dl | D2 | D6 | B-f | f1 | z-ød | H |
H Z41W-64 Y H Z641W-64 Y H Z941W-64 Y | 15 | 170 | 105 | 75 | 55 | 40 | 18-2 | 4 | 4-ø14 | 185 |
20 | 190 | 125 | 90 | 68 | 51 | 20-2 | 4 | 4-ø18 | 200 | |
25 | 210 | 135 | 100 | 78 | 58 | 22-2 | 4 | 4-ø18 | 225 | |
32 | 230 | 150 | 110 | 82 | 66 | 24-2 | 4 | 4-ø23 | 280 | |
40 | 240 | 165 | 125 | 95 | 76 | 24-3 | 4 | 4-ø23 | 300 | |
50 | 250 | 175 | 135 | 105 | 88 | 26-3 | 4 | 4-ø23 | 360 | |
65 | 280 | 200 | 160 | 130 | 110 | 28-3 | 4 | 8-ø23 | 385 | |
80 | 310 | 210 | 170 | 140 | 121 | 30-3 | 4 | 8-ø23 | 400 | |
100 | 350 | 250 | 200 | 168 | 150 | 32-3 | 4.5 | 8-ø25 | 450 | |
125 | 400 | 295 | 240 | 202 | 176 | 36-3 | 4.5 | 8-ø30 | 540 | |
150 | 450 | 340 | 280 | 240 | 204 | 38-3 | 4.5 | 8-ø34 | 630 | |
200 | 550 | 405 | 345 | 300 | 260 | 44-3 | 4.5 | 12-ø34 | 820 | |
250 | 650 | 470 | 400 | 352 | 313 | 48-3 | 4.5 | 12-ø41 | 960 | |
300 | 750 | 530 | 460 | 412 | 364 | 54-4 | 4.5 | 16-ø41 | 1130 | |
350 | 850 | 595 | 525 | 475 | 422 | 60-4 | 5 | 16-ø41 | 1300 | |
400 | 950 | 670 | 585 | 525 | 474 | 66-4 | 5 | 16-048 | 1450 | |
450 | 1050 | 715 | 630 | 570 | 524 | 70-4 | 5 | 20-ø48 | 1550 | |
500 | 1150 | 800 | 705 | 640 | 576 | 70-4 | 5 | 20-ø54 | 1680 | |
H Z41W-100 Y H Z641W-100 Y H Z941W-100 Y | 15 | 170 | 105 | 75 | 55 | 40 | 20-2 | 4 | 4-ø14 | 185 |
20 | 190 | 125 | 90 | 68 | 51 | 22-2 | 4 | 4-ø18 | 200 | |
25 | 210 | 135 | 100 | 78 | 58 | 24-2 | 4 | 4-ø18 | 225 | |
32 | 230 | 150 | 110 | 82 | 66 | 24-2 | 4 | 4-ø23 | 280 | |
40 | 240 | 165 | 125 | 95 | 76 | 26-3 | 4 | 4-ø23 | 300 | |
50 | 250 | 195 | 145 | 112 | 88 | 28-3 | 4 | 4-ø25 | 360 | |
65 | 280 | 220 | 170 | 138 | 110 | 32-3 | 4 | 8-ø25 | 385 | |
80 | 310 | 230 | 180 | 148 | 121 | 34-3 | 4 | 8-ø25 | 400 | |
100 | 350 | 265 | 210 | 172 | 150 | 38-3 | 4.5 | 8-ø30 | 450 | |
125 | 400 | 310 | 250 | 210 | 176 | 42-3 | 4.5 | 8-ø34 | 540 | |
150 | 450 | 350 | 290 | 250 | 204 | 46-3 | 4.5 | 12-ø34 | 630 | |
200 | 550 | 430 | 360 | 312 | 260 | 54-3 | 4.5 | 12-ø41 | 820 | |
250 | 650 | 500 | 430 | 382 | 313 | 60-3 | 4.5 | 12-ø41 | 960 | |
350 | 850 | 655 | 560 | 498 | 422 | 76-4 | 5 | 16-ø54 | 1300 | |
400 | 950 | 715 | 620 | 558 | 474 | 80-4 | 5 | 16-ø54 | 1450 | |
450 | 1050 | 770 | 675 | 615 | 524 | 84-4 | 5 | 16-ø58 | 1550 | |
500 | 1150 | 870 | 760 | 690 | 576 | 90-5 | 5 | 20-ø58 | 1680 | |
Summary:
Z41H, Z41Y, Z41W stainless steel gate valve: manual, flange connection, rising stem wedge type rigid single gate valve, valve seat sealing surface material is stainless steel, nominal pressure is PN16 ~ pn200, valve body material is stainless steel gate valve.
Z41W, Z41Y and Z41H stainless steel gate valves have compact structure, reasonable design, good rigidity, smooth passage and small flow resistance coefficient. The sealing surface is made of stainless steel and cemented carbide, with long service life, flexible graphite packing, reliable sealing and light and flexible operation.
Product advantages:
① In line with the requirements of advanced standards at home and abroad, reliable sealing, excellent performance, beautiful appearance.
② The sealing pairs are advanced and reasonable, and the sealing surfaces of the gate and valve seat are overlaid with cemented carbide with different hardness. The sealing is reliable, with high hardness, wear resistance, high temperature resistance, corrosion resistance, good scratch resistance and long service life.
③ After quenching and tempering and surface nitriding treatment, the valve stem has good corrosion resistance, abrasion resistance and abrasion resistance.
④ All kinds of piping flange standards and flange sealing surface forms can be adopted to meet various engineering needs and user requirements.
Application:
It is applied to the pipelines of various systems of petroleum, chemical, hydraulic and thermal power plants with working pressure of 1.6Mpa ~ 20.0Mpa and working temperature of - 29 ℃ ~ 200 ℃. The applicable media are nitric acid, acetic acid, water, oil, gas and some corrosive liquids.
Price:Our price fluctuates with raw materials and exchange rate.
Please leave your contact information and give you a new quotation as soon as possible.
Packing: wooden case, wooden pallet or packing method specified by customers.
We use strict testing equipment to test the quality of products to ensure the standard of API 800lb Forged Carbon/Stainless Steel Flange/Thread/Socket Welding OS&Y Gate Valve for Water/Oil/Gas Valve Check Valve Globe Valve. We always adhere to the business philosophy of sincerity and quality, and insist on the management concept of people-oriented, synergistic and efficient. We rely on meticulous professional attitude, unrelenting professionalism, first-class technical level to cooperate with leading companies in the industry, and continue to introduce international excellent production technology.
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SPEC DATA
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