Dual Plate Check Valve
Technical parameters and characteristics：
Product type | Check valve category |
Product description | Dual Plate Check Valve |
Model | Hn46H-Dual Plate Check Valve |
Nominal diameter | 2″～48″ |
Operating temperature | -29℃～593℃(the range of service temperature may vary for different materials) |
Nominal pressure | CLASS 150～2500 （PN20～PN420） |
Material | Main material: A216 WCB, WCC; A217 WC6, WC9, C5, C12, C12A, CA15; A351 CF8, CF8M, CF3, CF3M, CF8C, CN3MN, CK3MCUN, CN7M; A352 LCB, LCC; A494 CW-6MC, CU5MCuC, M35-1；A890 4A(CD3MN) , 5A(CE3MN), 6A(CD3MWCuN); ASME B 148 C95800, C95500, etc. |
Design standard | API 6D, API 594, ASME B16.34 |
Structural length | API 6D, API 594 |
Connecting end | ASME B16.5, ASME B16.47 |
Test standard | API 6D, API 598, ISO 5208 |
Operation method | The valve clack is automatically opened and closed under the medium force to prevent flowing to another direction. |
Application fields | For application in fields such as electric power industry, petroleum refining, petrochemical engineering, offshore oil, tap water engineering in urban construction, chemical engineering, etc. |
Technical characteristics
| The sealing faces of valve seat and valve clack are build-up welded with hard alloy to improve the erosion resistance and extend the service life of valve. |
Short closing travel of valve clack, and small impact at valve closing; short structural length, most suitable for positions with limited mounting space | |
Suitable for medium backflow prevention in pipeline or device | |
Built-in pin roll, without external leakage point | |
Due to loading of spring, the valve clack can move flexibly without jamming, and has a good sealing performance. |