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API 6A Valve

Choke Valve

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Choke Valve

Choke valve is a valve that control fluid flow or pressure by changing the throttle area. The types of choke valve are fixed type, needle type, cage type and orifice type, which adjust the flow and pressure by changing the cross-sectional area of the channel. Usually, the flow rate of the medium between the choke disc and the valve seat is very high, which leads to cavitation on the surface of the choke regulator. In order to minimize cavitation damage, Douson's restrictors are made of materials with excellent cavitation resistance (made of wear-resistant alloy).

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成立于2001年，致力于为全球客户提供安全可靠的、高性能的油气开发设备和满足多种工况的全套系统解决方案。

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Basic parameters

Parameters

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Nominal Bore Diameter	2-1/16"～7-1/16"
Working Pressure	2000psi～20000psi
Temperature Class	KU（-60℃～121℃）
Material Class	AA～HH
Product Specification Level	PSL1～PSL3G
Performance Requirement	PR1～PR2F