Wafer Disc and Swing Check Valve
manufacturer: Shanghai MeiYan Yi Pump & Valve Co., Ltd.
E-mail: sales@1bengfa.com
Tel: +86 (21) 5640 2009
Mob: +86 138 1691 3072（WeChat Same Account）
product drawing
Wafer disc and swing check valves
Structural features
Wafer disc and swing check valve is single disc swing wafer connecting check valve, works as device of preventing medium reflux in the pipes. The valves are ultra-thin check valves that manufactured and designed by Shanghai Remy Valve Manufacturing Co., Ltd. H74X, H74H-type wafer disc and swing check valve has simple structure, beautiful appearance, light weight, easy to install and other excellent features. The valve is mainly applicable to water supply systems, petroleum, chemical, metallurgical and other industrial sectors, and is most suitable for the places that have limited installation space. The design of H74 series of wafer disc and swing check valve uses wafer connection, straight-through single disc swing automatic parts, body and disc sealing surface can be bead welded by stainless steel or stellite.
Dimensions & constructral diagram
Wafer disc and swing check valve constructral diagram(pic1)
Wafer disc and swing check valve constructral diagram(pic2)
The materials of main parts
| part name | body, disc | sealing ring |
| material | carbon steel, stainless steel,copper | NBR, EPDM, PTFE |
Main technical parameter
| type | nominal pressure （MPa） | test pressure（MPa） | suitable temperature（℃） | applicable medium | ||
| shell | sealing | hard seal | soft seal | |||
| H74X/H-10 | 1.0 | 1.5 | 1.1 | ≤400 | ≤120 max≤250 | water,oil, acid-base and oher liquids |
| H74X/H-16 | 1.6 | 2.4 | 1.76 | |||
| H74X/H-25 | 2.5 | 3.75 | 2.75 | |||
| H74X/H-40 | 4.0 | 6.0 | 4.4 | |||
External dimensions
| nominal diameter DN(mm) | d | L | D | |||
| L type | PN1.0 | PN1.6 | PN2.5 | PN4.0 | ||
| 50 | 25 | 15 | 109 | 109 | 109 | 109 |
| 65 | 38 | 15 | 129 | 129 | 129 | 129 |
| 80 | 46 | 15 | 144 | 144 | 144 | 144 |
| 100 | 72 | 15 | 164 | 164 | 170 | 170 |
| 125 | 95 | 16 | 194 | 194 | 186 | 186 |
| 150 | 114 | 19 | 221 | 221 | 226 | 226 |
| 200 | 140 | 29 | 275 | 275 | 286 | 293 |
| 250 | 188 | 29 | 330 | 331 | 343 | 355 |
| 300 | 216 | 38 | 380 | 386 | 403 | 420 |
| 350 | 263 | 41 | 440 | 446 | 460 | 477 |
| 400 | 305 | 51 | 491 | 498 | 517 | 549 |
| 450 | 356 | 51 | 541 | 558 | 567 | 574 |
| 500 | 406 | 65 | 596 | 620 | 627 | 631 |
| 600 | 482 | 70 | 698 | 737 | 734 | 750 |
