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Ball valve and plug valve is the same type of valve, only its closing part is a sphere, the sphere around the center line of the valve body for rotation to achieve the opening and closing of a valve.
Ball valve in the pipeline is mainly used to cut off, distribution and change the direction of the flow of the medium. Ball valve is a new type of valve which has been widely used in recent years.
Product name: American standard ball valve
Body material: WCB, CF8, CF8M, CF3, CF3M
Nominal pressure (PN) | 1.6 | 2.5 | 4.0 | 6.4 |
Shell test pressure | 2.4 | 3.8 | 6.0 | 9.6 |
Seal test (liquid) | 1.8 | 2.8 | 4.4 | 7.0 |
Seal test (gas) | 0.5 ~ 0.7 | |||
Applicable media | CP R Water, oil products, vapors nitric acid acetic acids | |||
Applicable temperature | 200 ºC or less |
Name | WCB Class | CF8 class | CF3 Class | CF8M Class | CF3M Class | |
Valve body left body | A216-WCB | A315-CF8 | A35-CF3 | A351-CF8M | A351-CF3M | |
Sphere | B2-B8 | A105-1025 | A182-F304L | A182-F304L | A132-F316 | A182-F316L |
B8 above | A216-WCB | A351-CF8M | A351-CF3 | A351-CF8M | A351-CF3M | |
Valve stem | A182-F6a | A182-F304 | A182-F304L | A182-F336 | A182-F316L | |
Valve seat | PTFE/Reinforced PTFE/NYLIN PTFE/Reinforced PTFE/Nyion | |||||
Seat support ring | A105-1025 | A182-F304 | A182-F304L | A182-F316 | A182-F316L | |
Spring | 3yc-7/17-49H | |||||
o-ring | NBR | Fluororubber |