Check valve
公开/公告号：
US3559678 A
公开/公告日期：
Jan 9, 1923
被引量：
摘要：
A check valve having an elongated body accurately guided for lengthwise back and forth motion in a valve chamber by substantially thin longitudinal vanes joined to one another at a narrow zone along the axis of the body. The body can have a coaxial hemispherical seat engaging protuberance integrally joined to the forward edges of the vanes, or alternatively, the forward edges of the vanes can be formed with a hemispherical concavity to receive a seat engaging sphere.
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