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Tel:  +86-577-6735 6515
       +86-577-6799 5055
Zip code:  325102
Fax:  +86-577-6735 8449
         +86-577-6799 5056
Address:  NO.1921 Binhai Avenue 1, Economy & Technology Development Zone, Wenzhou City, Zhejiang Province, China 325025

产品详情
Double-clack check valve

Technical parameters and characteristics:

Product type ON/OFF
Product description Double-clack check valve
Model Hn46H-double-clack check valve
Nominal diameter NPS 2”~48”(DN50~DN1200)
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、GB/T 9113
Test standard API 598、ISO 5208、GB/T 26480、GB/T 13927
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.
Other remarks 1 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.
Other remarks 2 Short closing travel of valve clack, and small impact at valve closing; short structural length, most suitable for positions with limited mounting space
Other remarks 3 Suitable for medium backflow prevention in pipeline or device
Other remarks 4 Built-in pin roll, without external leakage point
Other remarks 5 Due to loading of spring, the valve clack can move flexibly without jamming, and has a good sealing performance.
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