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The check valve indicates a kind of valve in which the valve disc is automatically opened by the pressure produced by the flowing of the medium itself, and closed by the reverse pressure or the weight of the valve disc, so as to make the fluid flow toward one direction.
The check valves include different types such as swing type, lift type and tilting disc type. Designed in accordance with specifications in API6D, the full-open type check valves of Y&B Company are applied in transportation lines for crude oil and natural gas.
The forged steel valve is generally used for the high pressure valve. These valves include forged steel gate valves, globe valves and check valves in accordance with American standard and national standard.
The valves of this kind produced by Y&B Company have multiple varieties and diversified specifications ranging from 1/2" to 3", which can meet customer’s technical demands and delivery requirement.
Y&B Company can provide trims and shells of various materials according to specifications in API602.
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