Expandable pilot assembly for pressure regulators

    公开(公告)号:US11713827B2

    公开(公告)日:2023-08-01

    申请号:US16735785

    申请日:2020-01-07

    申请人: Dresser, LLC

    摘要: A pilot assembly is configured for use with various types of flow controls. These configurations include a manifold with an internal flow network that connects pilot valves and an adjustable orifice. The pilot valves may have a fixed and variable differential pressure. In one implementation, the manifold comprises a pair of separable blocks, one each that includes part of the internal flow network. This construction also permits the manifold to expand with, for example, and additional block for an additional pilot valve. This feature configures the manifold for use in working monitor systems or those systems that deploy multi-stage pressure regulation.

    Pressure regulator
    6.
    发明授权

    公开(公告)号:US09879799B2

    公开(公告)日:2018-01-30

    申请号:US14856162

    申请日:2015-09-16

    发明人: Brian Matteucci

    摘要: A system including a pressure regulator configured to regulate a flow of pressurized fluid in a hydrocarbon extraction system, the pressure regulator, including a housing having a chamber, a biasing system configured to provide a biasing force, a sensing piston disposed within the chamber, wherein the sensing piston is responsive to pressure within the chamber and the biasing force from the biasing system, and a supply seal plate comprising a first fluid supply passageway configured to reduce oscillations of the sensing piston.

    Pressure reducing valve
    7.
    发明授权

    公开(公告)号:US09846441B2

    公开(公告)日:2017-12-19

    申请号:US14225961

    申请日:2014-03-26

    IPC分类号: F16K31/12 G05D16/10

    摘要: A pressure reducing valve has a seal member, which is mounted on a side wall of a piston. The seal member is arranged between a first ring and a second ring. Consequently, depending on the direction of displacement of the piston, the first ring or the second ring is positioned on one of a displacement direction upstream side or a displacement direction downstream side of the seal member. The first ring and the second ring are made of a resin material, for example a polytetrafluoroethylene resin or a polyetheretherketone resin, having lower coefficient of friction compared with that of the seal member.

    PRESSURE REDUCING VALVE
    10.
    发明申请

    公开(公告)号:US20170147014A1

    公开(公告)日:2017-05-25

    申请号:US15127631

    申请日:2015-04-01

    申请人: KOSMEK LTD.

    发明人: Takeshi TSUCHIDA

    摘要: There is provided a pressure reducing valve in which phenomena of vibration occurring with respect to a pressure reducing member and/or a pressure receiving piston are reliably dampened. When a pressure receiving piston (19) is advanced rightward to increase the volume of a fluid chamber (28) defined by the pressure receiving piston (19) and a piston hole (18), the pressure in the fluid chamber (28) drops to close a check valve (34), and the pressurized fluid in an outlet chamber (10) flows into the fluid chamber (28) through a throttle portion (31). When the pressure receiving piston (19) is retracted leftward to reduce the volume of the fluid chamber (28), the pressure in the fluid chamber (28) rises to open the check valve (34), and the pressurized fluid in the fluid chamber (28) flows out to the outlet chamber (10).