Valve assembly
    96.
    发明授权

    公开(公告)号:US3297047A

    公开(公告)日:1967-01-10

    申请号:US35256564

    申请日:1964-03-17

    Applicant: VAPOR CORP

    Inventor: SIME MALCOLM A

    Abstract: 1,051,018. Valves. VAPOR CORPORATION. Jan. 12, 1965 [March 17, 1964], No. 1328/65. Heading F2V. A combined in-line shut-off and check valve assembly controlling flow between an inlet 46 and outlet 47, comprises a shut-off valve piston 64 seating on the outlet and opened by pressure in the valve chamber 32, 34 when a control chamber on one side of the piston is placed in communication with atmosphere through a pilot valve 116. A check valve 52 seats on the inlet and is slidable on a tubular portion 26 of a transverse wall having flow openings 22. The pilot valve is closed by energizing a solenoid 100, whereupon pressure entering the control chamber past the piston rings 75 and through a bleed hole 77 closes the shut-off valve.

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