Transfer valve manifold

摘要

A manifold 1A that simultaneously supplies a control and pilot fluids to a transfer valve 2 has an internal pilot channel 8 leading to a supply port 4; an external pilot channel 13 leading to an external pilot port X1; and a shuttle valve 11 that selectively guides a pilot fluid to the pilot valve 20 from the internal 8 and external 13 pilot channels. Two input openings 11a, 11b in the shuttle valve 11 are individually connected to the pilot 8 and external pilot 13 channels, while the output opening 11c is connected to the pilot supply channel 6.