Z941H/Y/W electric flange gate valve is suitable for cutting off or connecting pipeline media in various systems of petroleum,chemical,hydraulic,and thermal power plants with nominal pressure PN1.6~16.0MPa and working temperature≤-29℃~550℃.Applicable media include water,oil,steam,acid,alkali,ammonia,urea,sulfur-containing natural gas,etc.
Structure and Characteristics
1.The selection of materials is meticulous,in compliance with relevant domestic and international standards,and the overall quality of the materials is high.
2.Meets the requirements of advanced domestic and international standards,with reliable sealing,excellent performance,and beautiful appearance.
3.The sealing pair is advanced and reasonable,and the sealing surfaces of the gate and valve seat are made of Stellite cobalt based hard alloy with different hardness by welding.The sealing is reliable,with high hardness,wear resistance,high temperature resistance,corrosion resistance,good scratch resistance,and long service life.
4.The valve stem has undergone quenching and surface nitriding treatment,exhibiting excellent corrosion resistance,abrasion resistance,and wear resistance.
5.Adopting a wedge-shaped elastic gate structure,thrust bearings are installed on the medium and large diameters,with low friction,and equipped with manual impact for easy and smooth opening and closing.
6.Various piping flange standards and flange sealing surface forms can be adopted to meet various engineering needs and user requirements.
Application Specification for Electric Flange Gate Valve
design and manufacturing | GB/T12234 | |
Connection end size | Structure length | GB/T12221 |
Flange size | JB79 | |
Inspection and Testing | JB/T9092 | |
material | carbon steel | GB/T12229 |
stainless steel | GB/T12230 | |
sign | GB/T12220 | |
supply of material | JB/T7928 |
Main component materials of electric flange gate valve
valve body | bonnet | Valve plate | valve seat | valve stem | filler | Applicable Medium | Temperature(≤℃) |
WCB | WCB+D507MO | D577 | 2Crl3 | Flexible graphite | Water, oil, steam | 425 | |
ZGlCr5MO | ZGlCr5M0+ | 1Crl8Ni9+ | 25Cr2M01VA | Flexible graphite | Water, oil, steam | 550 | |
ZGlCrl8Ni9Ti | Crl了Ni2 | 1Crl8Ni9+ | 1Crl8Ni9Ti | PTFE | Nitric acid and alkali | 200 | |
ZG00Crl7Nil4M02 | 316L+ | 316L+Stel1ite6 | 316L | PTFE | Urea, ammonium solution, phosphoric acid | 200 |
Main external dimensions of electric flange gate valve
nominal pressure PN(MPa) | Nominal Diameter DN(mm) | Standard value | reference value | Electric installation model | ||||||||||
L | D | D1 | D2 | D6 | b | f | f1 | Z-φd | L1 | H | quality(kg) | |||
1.6 | 50 | 250 | 160 | 125 | 100 | 16 | 3 | 4-φ18 | 590 | 678 | 90 | DZWl0A | ||
65 | 265 | 180 | 145 | 120 | 18 | 3 | 4-φ18 | 590 | 693 | 96 | DZWl5A | |||
80 | 280 | 195 | 160 | 135 | 20 | 3 | 8-φ18 | 590 | 755 | 108 | DZW20A | |||
100 | 300 | 215 | 180 | 155 | 20 | 3 | 8-φ18 | 590 | 820 | 126 | DZW20A | |||
150 | 350 | 280 | 240 | 210 | 24 | 3 | 8-φ23 | 590 | 994 | 199 | DZW20A | |||
200 | 400 | 335 | 295 | 265 | 26 | 3 | 12-φ23 | 590 | 1138 | 254 | DZW30A | |||
250 | 450 | 405 | 355 | 320 | 30 | 3 | 12-φ25 | 810 | 1409 | 310 | DZW45A | |||
300 | 500 | 460 | 410 | 375 | 30 | 4 | 12-φ25 | 810 | 1588 | 391 | DZW60 | |||
350 | 550 | 520 | 470 | 435 | 34 | 4 | 16-φ25 | 830 | 1755 | 729 | DZW90 | |||
400 | 600 | 580 | 525 | 485 | 36 | 4 | 16-φ30 | 830 | 1902 | 992 | DZWl20 | |||
450 | 650 | 640 | 585 | 545 | 40 | 4 | 20-φ30 | 870 | 214l | 1168 | DZWl80 | |||
500 | 700 | 705 | 650 | 608 | 44 | 4 | 20-φ34 | 870 | 2276 | 1222 | DZW250 | |||
600 | 800 | 840 | 770 | 718 | 48 | 5 | 20-φ41 | 870 | 2474 | 1376 | DZW250 | |||
2.5 | 50 | 250 | 160 | 125 | 100 | 20 | 3 | 4-φ18 | 590 | 678 | 95 | DZWl0A | ||
65 | 265 | 180 | 145 | 120 | 22 | 3 | 4-φ18 | 590 | 693 | 99 | DZWl5A | |||
80 | 280 | 195 | 160 | 135 | 22 | 3 | 8-φ18 | 590 | 755 | 113 | DZW20A | |||
100 | 300 | 230 | 190 | 160 | 24 | 3 | 8-φ23 | 590 | 820 | 132 | DZW20A | |||
150 | 350 | 300 | 250 | 218 | 30 | 3 | 8-φ25 | 590 | 934 | 206 | DZW30A | |||
200 | 400 | 360 | 310 | 278 | 34 | 3 | 12-φ25 | 590 | 1138 | 257 | DZW30A | |||
250 | 450 | 425 | 370 | 332 | 36 | 3 | 12-φ30 | 810 | 1409 | 317 | DZW45A | |||
300 | 500 | 485 | 430 | 390 | 40 | 4 | 16-φ30 | 810 | 1588 | 412 | DZW60A | |||
350 | 550 | 550 | 490 | 448 | 44 | 4 | 16-φ34 | 830 | 1750 | 750 | DZW90 | |||
400 | 600 | 610 | 550 | 505 | 48 | 4 | 16-φ34 | 830 | 1902 | 1042 | DZWl20 | |||
450 | 650 | 660 | 600 | 555 | 50 | 4 | 20-φ34 | 870 | 2141 | 1275 | DZWl20 | |||
500 | 700 | 730 | 660 | 610 | 52 | 4 | 20-φ41 | 870 | 2276 | 1420 | DZWl80 | |||
600 | 800 | 840 | 770 | 718 | 56 | 5 | 20-φ41 | 870 | 2474 | 1522 | DZW250 |
Tel: 15351513006
Landline: 0515-89118577
Fax: 0515-8911 8000
Email: jtongcn 126.com
Address: Oubei Pump and Valve Industrial Park, Binhai Economic Development Zone, Jiangsu Province
15351513006