A VALVE AND A METHOD OF OPERATING A VALVE
    6.
    发明公开

    公开(公告)号:EP3489557A1

    公开(公告)日:2019-05-29

    申请号:EP18206406.3

    申请日:2013-12-20

    摘要: The invention relates to a valve having a balancing function for a fluid distribution system. A valve closing member is movable between a closed position and a fully opened position. An actuation device is provided for changing the position of the valve closing member. A control unit is provided and comprises an electronic memory adapted to receive and store an opening limitation value, said opening limitation value being representative of a selected intermediate position between said closed position and said fully opened position of the valve closing member, wherein the control unit controls the actuation device to limit the movement of the valve closing member to positions from said closed position to said selected intermediate position. The invention also relates to a valve system and to a method of operating a valve.

    ACTUATOR AND METHOD FOR VALVE TYPE RECOGNITION

    公开(公告)号:EP3403012A1

    公开(公告)日:2018-11-21

    申请号:EP16810330.7

    申请日:2016-12-09

    IPC分类号: F16K37/00 F16K31/04

    CPC分类号: F16K37/0041 F16K31/04

    摘要: A method for valve type recognition of a valve connected to an actuator, said valve being one of a first valve type and a second or further valve type. The actuator comprises an actuator spindle which can be operatively connected to a valve rod. If the maximum allowable stroke of the actuator spindle is the same, or smaller than, a reference value then it is determined that the valve connected to the actuator is of the first valve type. If the maximum allowable stroke is larger than said reference value, the valve is determined to be of the second valve type. An actuator is provided for use in such a method.

    MEASUREMENT MODULE
    8.
    发明公开
    MEASUREMENT MODULE 审中-公开
    测量模块

    公开(公告)号:EP3229002A1

    公开(公告)日:2017-10-11

    申请号:EP16163719.4

    申请日:2016-04-04

    发明人: Jilderos, Daniel

    摘要: The present invention relates to a measurement module (100, 100', 200, 220, 300, 400) for measuring the differential pressure between a first and second connection point (101 a, 102a) arranged in a transport line for a fluid. The measurement module (100, 100', 200, 220, 300, 400) comprises a first connection line (101) and a second connection line (102), a differential pressure sensor (101) arranged in fluid communication with said first and second connection line (101, 102), a safety valve (120, 320, 420) arranged in fluid communication with said first and second connection line (101, 102), and a calibration actuator (121, 440) for actuating said safety valve (120, 320, 420) into said open state for enabling a zero-point calibration of said differential pressure sensor (110).

    摘要翻译: 本发明涉及一种测量模块(100,100',200,220,300,400),用于测量布置在用于流体的输送管线中的第一和第二连接点(101a,102a)之间的压差。 所述测量模块(100,100',200,220,300,400)包括第一连接管线(101)和第二连接管线(102);压差传感器(101),其布置成与所述第一和第二 连接管线(101,102),布置成与所述第一和第二连接管线(101,102)流体连通的安全阀(120,320,420)以及用于致动所述安全阀(101,102)的校准致动器(121,440) 将所述差压传感器(110)的零点标定成所述打开状态。

    Pressure independent control and balancing valves
    9.
    发明授权
    Pressure independent control and balancing valves 有权
    压力独立的控制和平衡阀

    公开(公告)号:EP2772818B1

    公开(公告)日:2016-01-06

    申请号:EP13157343.8

    申请日:2013-02-28

    IPC分类号: G05D7/01

    CPC分类号: G05D7/014 Y10T137/353

    摘要: A device having pressure independent control and balancing valves, suitable for use in a hydronic system, comprises a seat, a plug having an upstream surface and a downstream surface, and a piston, wherein the seat, plug and piston are aligned coaxially, a controller determines the size of a first flow restriction between the upstream surface of the plug and the seat, the piston is operable to move in response to differential pressure across the first restriction and a predetermined force, the position of the piston relative to the downstream surface of the plug determining the size of a second flow restriction thereby in use maintaining a substantially constant differential pressure across the first restriction.