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Stainless Steel Flange Gate Valve

MFG: Shanghai Fengqi Industry Development Co., Ltd.
Eml: sales@fengqi.sh.cn

Tel: 0086 (021) 3652 8716
Mob: (0086) 138 1635 6498

product drawing

Stainless steel flange gate valves
Stainless steel flange gate valves

The structural features

Exquisite Selection, according to the domestic and international standards, and the materials has the overall high quality.
2、In line with the requirements of domestic and foreign advanced standards, it has sealing reliability, excellent performance and beautiful shape.
3、The match of sealing is advanced and reasonable. The disc and seat sealing surface is formed by different hardness stellite cobalt-based alloy cladding, it has sealing reliability, high hardness, abrasion resistance, high temperature resistance, corrosion-resistant , good anti-abrasion performance, and a long service life.
4、After quenching and surface nitriding treatment, the stem has a good anti-corrosion, anti-scratch and abrasion resistance.
5、Using flexible wedge disc structure, the large-diameter sets the thrust bearings, and the friction is small, and it is equipped with impact handwheel, hoist easily.
6、It can adopt a variety of standard flange and flange sealing surface forms, and fits a variety projects requirements and customers’ needs.

Dimensions & constructral diagram

Stainless steel flange gate valve constructral diagram
Stainless steel flange gate valve constructral diagram

The materials of main parts

part name ZG1Cr18Ni9Ti 304    CF8 ZG00Cr18Ni10 304L    CF3 ZG1Cr18Ni12Mo2Ti 316    CF8M ZG00Cr17Ni14Mo2 316L     CF3M
body,bonnet 0Cr18Ni9 00Cr18Ni10 0Cr18Ni9Mo2 00Cr18Ni10Mo2
disc 0Cr18Ni9 00Cr18Ni10 0Cr18Ni9Mo2 00Cr18Ni10Mo2
stem 0Cr18Ni9 00Cr18Ni10 0Cr18Ni9Mo2 00Cr18Ni10Mo2
stem nut Aluminium bronze
packing PTFE weave PTFE weave PTFE weave PTFE weave
gasket 304+PTFE 304L+PTFE 316+PTFE 316L+PTFE
gland 0Cr18Ni9 00Cr18Ni10 0Cr18Ni9Mo2 00Cr18Ni10Mo2
bolt stainless steel
nut stainless steel
handwheel ductile cast iron, cast steel

The main connection dimensions of PN1.6Mpa

model nominal diameter dimension(mm)
L D D1 D2 b-f z-Φd H D0
Z41W-1.6MPa 15 130 95 65 45 14-2 4-14 170 120
20 150 105 75 55 14-2 4-14 200 120
25 160 115 85 65 14-2 4-14 215 140
32 180 135 100 78 16-2 4-18 260 160
40 200 145 110 85 16-3 4-18 290 200
50 250 160 125 100 16-3 4-18 345 220
65 265 180 145 120 18-3 4-18 360 240
80 280 195 160 135 20-3 8-18 385 280
100 300 215 180 155 20-3 8-18 430 300
125 325 245 210 185 22-3 8-18 520 320
150 350 280 240 210 24-3 8-23 610 350
200 400 335 295 265 26-3 12-23 765 400
250 450 405 355 320 30-3 12-25 895 450
300 500 460 410 375 30-4 12-25 1145 500
350 550 520 470 435 34-4 16-25 1200 550
400 600 580 525 485 36-4 16-30 1400 600
450 650 640 585 545 40-4 20-30 1500 650
500 700 705 650 608 44-4 20-34 1630 700
600 800 840 770 718 48-5 20-41 1830 800

The main connection dimensions of PN2.5Mpa

model nominal diameter dimension (mm)
L D D1 D2 b-f z-Φd H D0
Z41W-2.5MPa 15 130 95 65 45 16-2 4-14 170 120
20 150 105 75 55 16-2 4-14 200 120
25 160 115 85 65 16-2 4-14 215 140
32 180 135 100 78 18-2 4-18 260 160
40 200 145 110 85 18-3 4-18 290 200
50 250 160 125 100 20-3 4-18 345 220
65 265 180 145 120 22-3 8-18 360 240
80 280 195 160 135 22-3 8-18 385 280
100 300 230 190 160 24-3 8-23 430 300
125 325 270 220 188 28-3 8-25 520 320
150 350 300 250 218 30-3 8-25 610 350
200 400 360 310 278 34-3 12-25 765 400
250 450 425 370 332 36-3 12-30 900 450
300 500 485 430 390 40-4 16-30 1130 500
350 550 550 490 448 44-4 16-34 1250 550
400 600 610 550 505 48-4 16-34 1430 600
450 650 660 600 555 50-4 20-34 1520 650
500 700 730 660 610 52-4 20-41 1650 700
600 800 840 770 718 56-5 20-41 1850 800

The main connection dimensions of PN4.0Mpa

model nominal diameter dimension(mm)
L D D1 D2 D6 b-f z-Φd H
Z41W-4.0MPa 15 130 95 65 45 40 16-2 4-14 170
20 150 105 75 55 51 16-2 4-14 200
25 160 115 85 65 58 16-2 4-14 215
32 180 135 100 78 66 18-2 4-18 260
40 200 145 110 85 76 18-3 4-18 290
50 250 160 125 100 88 20-3 4-18 345
65 280 180 145 120 110 22-3 8-18 360
80 310 195 160 135 121 22-3 8-18 385
100 350 230 190 160 150 24-3 8-23 430
125 400 270 220 188 176 28-3 8-25 530

The main connection dimensions of PN6.4Mpa

model 150 450 300 250 218 204 30-3 8-25 620
200 550 375 320 282 260 38-3 12-30 780
250 650 445 385 345 313 42-3 12-34 900
Z41W-6.4MPa 15 170 105 75 55 41 18-2 4-14 175
20 190 125 90 68 51 20-2 4-18 200
25 210 135 100 78 58 22-2 4-18 215
32 230 150 110 82 66 24-2 4-23 270
40 240 165 125 95 76 24-3 4-23 300
50 250 175 135 105 88 26-3 4-23 370
65 280 200 160 130 110 28-3 8-23 385
80 310 210 170 140 121 30-3 8-23 400
100 350 250 200 168 150 32-3 8-25 460
125 400 295 240 202 176 36-3 8-30 570
150 450 340 280 240 204 38-3 8-34 660
200 550 405 345 300 260 44-3 12-34 820
250 650 470 400 352 313 48-3 12-41 1000
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