We insist within the theory of development of ‘High top quality, Performance, Sincerity and Down-to-earth working approach’ to provide you with exceptional provider of processing for Professional China China API594 2″ to 54″ 150lb Wcb Body Wafer Type Dual Plate Check Valve for Oil Gas Water, Honest cooperation with you, altogether will develop happy tomorrow!
We insist within the theory of development of ‘High top quality, Performance, Sincerity and Down-to-earth working approach’ to provide you with exceptional provider of processing for China Dual Plate, dual plates wafer check valve,single disc wafer check valve, The working experience in the field has helped us forged a strong relations with customers and partners both in domestic and international market. For years, our products have been exported to more than 15 countries in the world and have been widely used by customers.
The double-clip disc check valves are single-disc swing check valves with double-clip connection. They are all ultra-thin check valves to prevent medium countercurrent in pipeline. The double-clip disc check valves of H74X and H74H have the advantages of simple structure, beautiful appearance, light weight and convenient installation. It is mainly suitable for water supply system, petroleum, chemical, metallurgical and other industrial sectors. It is most suitable for places with limited installation space. H74 series double-clip disc check valves are designed with double-clip connection, through single-disc swing type automatic valves, and stainless steel or Stelli surfacing can be used for the sealing surface of valve body and disc.
Technical data
PN(MPa) Nominal pressure |
1.0 |
1.6 |
2.5 |
4.0 |
(MPa) Shell testing pressure |
1.5 |
2.4 |
3.75 |
6.0 |
(MPa) Seal testing pressure |
1.1 |
1.76 |
2.75 |
4.4 |
°C Suitable temperature |
<400(Hard seal) <120(<250)(Soft seal) |
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Suitable mediums |
Oil, water, acid and alkali liquid |
Meterial of main parts
Part name |
Valve body, valve disc |
Seat ring |
Meterial |
Garbon steel, stainless steel, copper |
NBR,EPDM,PTFE |
Main Dimension
DN(mm) | d | L | D | ||||
I | II | PN1.0MPa | PN1.6MPa | PN2.5MPa | PN4.0MPa | ||
50 | 25 | 15 | 22 | 109 | 109 | 109 | 109 |
65 | 38 | 15 | 22 | 129 | 129 | 129 | 129 |
80 | 46 | 15 | 22 | 144 | 144 | 144 | 144 |
100 | 72 | 15 | 24 | 164 | 164 | 170 | 170 |
125 | 95 | 16 | 26 | 194 | 194 | 186 | 186 |
150 | 114 | 19 | 29 | 221 | 221 | 226 | 226 |
200 | 140 | 29 | 43 | 275 | 275 | 286 | 293 |
250 | 188 | 29 | 43 | 330 | 331 | 343 | 355 |
300 | 216 | 38 | 50 | 380 | 386 | 403 | 420 |
350 | 263 | 41 | 52 | 440 | 446 | 460 | 477 |
400 | 305 | 51 | 62 | 491 | 498 | 517 | 549 |
450 | 356 | 51 | 62 | 541 | 558 | 567 | 574 |
500 | 406 | 65 | 80 | 596 | 620 | 627 | 631 |
600 | 482 | 70 | 90 | 698 | 737 | 734 | 750 |