Patent ID: 8444111

Claim:
A combined valve comprising: a pilot valve; and a manual valve, the pilot valve including: a valve mechanism having a valve seat and a diaphragm valve to be brought into or out of contact with the valve seat; and a pilot mechanism arranged to cause the diaphragm valve placed in contact with the valve seat by an urging member to be separated from the valve seat by pneumatic pressure, the pilot mechanism including an exhaust port and an operation port, the manual valve including a manual mechanism provided in a side of the pilot valve opposite from the valve mechanism, the manual mechanism including a communication passage and being rotatable to switch between a first position and a second position, the first position being set to close the pilot valve by making the exhaust port of the pilot mechanism communicate with the communication passage of the manual mechanism and the second position being set to allow a free opening/closing operation of the pilot valve by making the operation port of the pilot mechanism communicate with the communication passage, wherein the pilot mechanism has a housing provided with the exhaust port and the operation port, the manual mechanism has a flange formed with the communication passage, the housing includes: a holding hole formed in an axial direction for rotatably holding the manual mechanism; and a storage opening part having a wider diameter than the holding hole and housing the flange in position, the operation port is located in a position corresponding to the holding hole and internally holds a joint, and the exhaust port opens in an inner wall of the storage opening part, and the combined valve further includes: a first sealing member forming a connecting passage to connect the operation port and the communication passage between the housing and the manual mechanism; a second sealing member sealingly separating an opening portion of the exhaust port opening in the inner wall of the storage opening part from the connecting passage; and a partition member of annular shape in which a part of the manual mechanism protruding from the flange toward the valve mechanism side is inserted, the partition member being mounted in the housing by holding the flange against the inner wall of the storage opening part, wherein the first sealing member includes: a sealing component attached to an outer peripheral surface of the partition member to seal between the partition member and the housing; and a sealing component attached to an inner peripheral surface of the partition member to seal between the partition member and the manual mechanism.