| 摘要 |
A three-way normally closed only, pilot air valve for supplying pressurized pilot air to a directional flow control air valve, such as a four-way valve, a three-way valve, a two-way valve or the like, for shifting the main valve spool of such valves. The valve includes a valve body having a pilot air inlet port, a cylinder port, and an exhaust port. A tubular valve retainer member having an axial bore formed therethrough is releasably mounted in the valve body. A first passageway connects the pressurized pilot air inlet port to the cylinder port. A second passageway connects the cylinder port with the exhaust port. A captive poppet valve spool is movably mounted in the valve retainer member for controlling the flow of air through the two passageways.
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