美国VERSA黄铜往复阀SV-3-316是一个两个入口，一个出口装置，利用一个自由移动梭来阻止两个入口之一，同时允许未被阻塞的入口流向出口。
当压力信号施加到其中一个入口端口时，穿梭装置阻挡相反的入口端口并且流动通过出口。航天飞机将保持这种状态直到原始信号被移除或更高的压力信号被施加到相反的入口端口。从逻辑上讲，梭阀是一个“或”功能
美国VERSA黄铜往复阀技术规格
结构:黄铜体，丁腈橡胶（丁腈橡胶）密封件
服务:气动至200psi（13.8巴）;液压到500 psi（34.5 bar）
功能:梭阀

端口尺寸/流量:1/4“NPT / 1.8 Cv，3/8”NPT / 4.5 Cv，1/2“NPT / 4.9 Cv，3/4”NPT / 7.3 Cv

侧移

Versa Shuttle Valves are constructed of solid Brass or 316 Stainless Steel, with resilient seals providing tight shut off. Shuttle valves are 3/2 valves, primarily used to charge and discharge a pressure line or chamber from two - or more - sources.

Shuttle Valves have a free moving shuttle that blocks one of two inlet ports while the other inlet port is connected to the (common) outlet port. When a pressure signal enters the port blocked by the shuttle, it will cause the shuttle to shift over to close the opposite inlet port. The shuttle will stay there while the line or chamber connected to the outlet port is charged and/or discharged and will only shift when pressure is applied to the inlet port it is blocking at that time. In logic terms a shuttle valve is an ‘OR’ - function