disc is swing type. Flow passage is straight through type. Can be installed in horizontal and vertical pipe.
arm pin shaft is built-in structure to reduce leakage.
bolt bonnet. in status of high pressure, pressure class is over 600LB. Mid-flange adopts intermal pressure self-sealing structure so to effect light weight and reliable seal.
Features of swing check valve:
1) Standards:
A) Design&Manufacture: API 6D, BS 1868, ASME B16.34
B) Face to Face: API 6D, ASME B16.10, DIN 3202
C) Connection End: ASME B16.5, ASME B16.11, ASME B16.47, DIN2543-2550
D) Test and Inspection: ISO5208, API 6D, BS 6755
2) Sizes: 2" - 36" or DN50 - DN700
3) Pressure Rating: Class150 - Class1500 or PN16 - PN250
4) Material: WCB, LCB, WC6, WC9, C12, C5, CF8, CF3, CF3M, CF8M, etc.
| Suitable Medium | Water, Oil, Gas and etc. |
| Main material | CAST IRON,ASTM A216 WCB, WCC, WC6, SS304, SS316, CF8, ETC. |
| Suitable Temperature | ≤80 |
| Nominal Pressure | PN10--PN250 |
| Nominal Diameter | DN50--DN700 |
| Flange Dimension | ASME B16.5, BS4504, ISO2531, ISO7005 and other standards conforming to the requirements |
| Face to Face Length | API594,BS5155, ISO5752, DIN3352 and other standards conforming to the requirements |
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Established in 1985, Zhejiang Guanlong Valve Machinery Co., Ltd. is a professional manufacturer which integrating development, production, sales, installation and service into an organic whole.
Our company mainly manufactures valves according to ANSI, API, DIN, BS, and Chinese GB standards. We are specializing in producing hydraulic control valves, check valves, multifunctional pump control valves, pressure reducing valves, adjusting valves and butterfly valves. There are 6 major series and more than 1000 specifications now.
Our products are exported to worldwide, such as the USA, Canada, Europe, the Middle East and South East and Southeast Asia. With high content of technology and reliable quality, our products have gained good fame from the customers.
After nearly 20 years of development and self-perfection, our products are supported by novel design, excellent structure, elaborate workmanship, exquisite technology and complete testing measures.
We will fully exert our advantage on technology and management to improve continuously our product quality and manufacture high quality valve products to satisfy the customers.
