√ Centre sealing butterfly valve has bidirectional sealing function, pressure and flow can adjustable
√ Forged sealing ensures non-leakage inside and outside the valve
√ Exqusite Techniques make excellent performance, like resistance in high temperature, corrosion and alkali, long-term use etc
√ Application Wide Range in the field of petroleum, chemical industry, metallurgy, hydropower etc
Main parts Material
No. | Name | Material |
1 | Body & Bonnet | Cast steel, stainless steel, WCB etc |
2 | Disc | WCB, CF8,CF8M, CF3,CF3M,Bronze etc |
3 | Seat | EPDM/NBR etc |
4 | O ring | FPM,EPDM,PTFE etc |
5 | Gasket | SI, rubber etc |
6 | Bolt & Nut | CS, Cast / Ductile Iron, SS other requirements can be customized needs to agree |
7 | Handle | WPB(Ductile Iron) |
D iameter | Standard | Reference | |||||||||||
DN(mm)
|
NPS(inch)
|
wafer
|
Flange |
PN0.6(Mpa) |
PN1.0(Mpa) | D0 | H | W(kg) | |||||
Long series | Short series | D | D1 | Z-Φd | D | D1 | Z-Φd | ||||||
40 | 1 1/2 | 33 | 106 | 106 | 130 | 100 | 4-Φ14 | 150 | 110 | 4-Φ18 | 160 | 140 | 2.2 |
50 | 2 | 43 | 108 | 108 | 140 | 110 | 4-Φ14 | 165 | 125 | 4-Φ18 | 200 | 145 | 3.3 |
65 | 2 1/2 | 46 | 112 | 112 | 160 | 130 | 4-Φ14 | 185 | 145 | 8-Φ18 | 250 | 155 | 4 |
80 | 3 | 46 | 114 | 114 | 190 | 150 | 4-Φ18 | 200 | 160 | 8-Φ18 | 250 | 165 | 17.72 |
100 | 4 | 52 | 127 | 127 | 210 | 170 | 4-Φ18 | 220 | 180 | 8-Φ18 | 250 | 180 | 19.88 |
125 | 5 | 56 | 140 | 140 | 240 | 200 | 8-Φ18 | 250 | 210 | 8-Φ18 | 300 | 203 | 29.26 |
150 | 6 | 56 | 140 | 140 | 265 | 225 | 8-Φ18 | 285 | 240 | 8-Φ22 | 300 | 225 | 33.88 |
200 | 8 | 60 | 152 | 152 | 320 | 280 | 8-Φ18 | 340 | 295 | 8-Φ22 | 200* | 275 | 49.34 |
250 | 10 | 68 | 250 | 165 | 375 | 335 | 12-Φ18 | 395 | 350 | 12-Φ22 | 200* | 315 | 68.3 |
300 | 12 | 78 | 270 | 178 | 440 | 395 | 12-Φ22 | 445 | 400 | 12-Φ22 | 240* | 348 | 90.14 |
350 | 14 | 78 | 290 | 190 | 490 | 445 | 12-Φ22 | 505 | 460 | 16-Φ22 | 240* | 415 | 117.6 |
400 | 16 | 102 | 310 | 216 | 540 | 495 | 16-Φ22 | 565 | 515 | 16-Φ26 | 280* | 460 | 196.2 |
450 | 18 | 114 | 330 | 222 | 595 | 550 | 16-Φ22 | 615 | 565 | 20-Φ26 | 280* | 500 | 246 |
500 | 20 | 127 | 350 | 229 | 645 | 600 | 20-Φ22 | 670 | 620 | 20-Φ26 | 320* | 530 | 292 |
600 | 24 | 154 | 390 | 267 | 755 | 705 | 20-Φ26 | 780 | 725 | 20-Φ30 | 320* | 610 | 352 |
700 | 28 | 165 | 430 | 292 | 860 | 810 | 24-Φ26 | 895 | 840 | 24-Φ30 | 360* | 675 | 411 |
800 | 32 | 190 | 470 | 318 | 975 | 920 | 24-Φ30 | 1015 | 950 | 24-Φ33 | 360* | 805 | 485 |
900 | 36 | 203 | 510 | 330 | 1075 | 1020 | 24-Φ30 | 1115 | 1050 | 28-Φ33 | 380* | 995 | 530 |
1000 | 40 | 216 | 550 | 410 | 1175 | 1120 | 28-Φ30 | 1230 | 1160 | 28-Φ36 | 400* | 1110 | 650 |
1200 | 48 | 254 | 630 | 470 | 1405 | 1340 | 32-Φ33 | 1455 | 1380 | 32-Φ39 | 400* | 1130 | 800 |
Founded in 2023, our company, Wenzhou Dejia Special Steel Co., Ltd is specialized in producing various products such as elbows, tees, reducers, caps, flanges and valves. We can produce products according to National standard, American standard etc. It's our feature that we can produce products of any size ad per customers' special demands.
Q: What are your main products?
A: We specialize in producing a wide range of valves, elbows, flanges, Tee, Cross, gaskets etc.
Q: How long is your delivery time?
A:Usually it's 15-30 days all the best or it's more than 30 days according to the quantity.
Q: Do you provide samples? Free or charge?
A:Yes, we'd like to offer you samples but you have to cough up dough for shipping.
Q: How do you guarantee the quality of your products?
A: Before mass production, a few products made by our engineers for conduct tests. All products must be checked before shipping.
Q: How about your service?
A: Aiming to the concept of " Service Supremacy", we have pre-sale service, on-purchase service and after-sales service.