RELIEF MECHANISM FOR REDUCING VALVE

Japanese Patent JPH0247703

A

PURPOSE:To keep the secondary-side pressure at a prescribed value with a high accuracy by arranging a slide member, which opens a connection path connected to the air at the time of setting a pilot member to the free state, between the pilot member and a valve body. CONSTITUTION:A pilot type reducing valve consists of a pressure reducing part 1, a steam separator part 2, and a discharging valve part 3. The pressure reducing part 1 consists of a pilot main body 12, which has an inlet 4 and an outlet 5 for a fluid and is provided with a main valve hole 6 and a piston chamber 10 where a piston 22 as the piston member is stored, and a cover 13 where a pressure adjusting screw 11 is stored. The steam separator part 2 consists of turning blades 14 which separate steam flowing from the inlet 4 and a partition member 15 which changes the direction of the flow, and the discharging valve part 3 consists of a float 18, which connects and disconnects a discharging valve chamber 16 to and from a discharging valve hole 17, and a float cover 19. The secondary-side pressure reaches a diaphragm chamber 10 from a passage 31 to open and close a pilot valve body 20, and a slide member 35 is operated by the piston 22 to open a connection path 39.

KOYAMA MITSUHIRO
HASEGAWA YOSHIHIKO

JP19963688A

February 16, 1990

August 09, 1988

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TLV CO LTD

G05D16/06; (IPC1-7): G05D16/06

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