Abstract: The invention relates to a capsule for a valve as well as to a valve comprising such a capsule. The task of the present invention is to provide a valve in which tight tolerances for construction can be achieved and the assembly of the valve is simplified. According to the present invention the above task is solved by a capsule (1) for a valve comprising at least one diaphragm (2), a valve seat (3), a capsule inlet (5) and a capsule outlet (6). The valve seat (3) is openable and closable to permit or stop a fluid flow from the capsule inlet (5) to the capsule outlet (6). The above task is also solved by a capsule (1) for a valve that comprises at least one diaphragm (2), a valve seat (3), a capsule inlet (5) and a capsule outlet (6), wherein the capsule (1) is structured and arranged to control the position of a pilot valve element external to the capsule (1).

Abstract: A pulsation damper (1) comprising a first tube (4) and a second tube (5), e.g. arranged concentrically with respect to each other, the first tube (4) being arranged inside the second tube (5). The second tube (5) has a closed end, and the first tube (4) has a second end (7) arranged at a distance from the closed end (8) of the second tube (5). The first tube (4) is fluidly connected to the second tube (5) via the second end (7). The pulsation damper is capable of damping pressure pulses within a broad frequency range. Furthermore a vapour compression system (14) having a pulsation damper (1) arranged in an economizer line (20).

Abstract: The invention relates to a pilot valve arrangement (1) comprising a pilot valve device (2) which comprises a pilot valve element (13), a pilot valve seat (14) cooperating with the pilot valve element (13) and a presetting mechanism for presetting an opening pressure of the pilot valve element (13), the pilot valve arrangement (1) further comprising a presetting mechanism actuating device (3) which comprises an actuator element (17) adapted to create an actuating force in order to actuate the presetting mechanism in the pilot valve device so as to preset the opening pressure. According to the invention, the pilot valve arrangement (1) comprises a contactless force coupling arrangement adapted to transfer the actuating force from the presetting mechanism actuating device (3) to the pilot valve device (2). An inventive pilot valve device (2) is disclosed and claimed as well. The invention allows to improve maintenance and safety concerning the devices mentioned above.

Abstract: The invention relates to a capsule for a valve as well as to a valve comprising such a capsule. The task of the present invention is to provide a valve in which tight tolerances for construction can be achieved and the assembly of the valve is simplified. According to the present invention the above task is solved by a capsule (1) for a valve comprising at least one diaphragm (2), a valve seat (3), a capsule inlet (5) and a capsule outlet (6). The valve seat (3) is openable and closable to permit or stop a fluid flow from the capsule inlet (5) to the capsule outlet (6). The above task is also solved by a capsule (1) for a valve that comprises at least one diaphragm (2), a valve seat (3), a capsule inlet (5) and a capsule outlet (6), wherein the capsule (1) is structured and arranged to control the position of a pilot valve element external to the capsule (1).

Abstract: The invention relates to a pilot valve arrangement (1) comprising a pilot valve device (2) which comprises a pilot valve element (13), a pilot valve seat (14) cooperating with the pilot valve element (13) and a presetting mechanism for presetting an opening pressure of the pilot valve element (13), the pilot valve arrangement (1) further comprising a presetting mechanism actuating device (3) which comprises an actuator element (17) adapted to create an actuating force in order to actuate the presetting mechanism in the pilot valve device so as to preset the opening pressure. According to the invention, the pilot valve arrangement (1) comprises a contactless force coupling arrangement adapted to transfer the actuating force from the presetting mechanism actuating device (3) to the pilot valve device (2). An inventive pilot valve device (2) is disclosed and claimed as well. The invention allows to improve maintenance and safety concerning the devices mentioned above.

Abstract: A refrigerant valve arrangement (1) is shown comprising a housing (2) having an inlet (3) and an outlet (4) and defining a main flow direction (5) a first valve having a first valve axis (11), and a second valve having a second valve axis (17). Such a refrigerant valve arrangement should have a low pressure drop between inlet and outlet. To this end said first valve axis (11) encloses a first angle (?) smaller than 90° with said main flow direction (5) and/or said second valve axis (17) encloses a second angle (?) larger than 90° with said main flow direction (5).

Abstract: A pulsation damper (1) comprising a first tube (4) and a second tube (5), e.g. arranged concentrically with respect to each other, the first tube (4) being arranged inside the second tube (5). The second tube (5) has a closed end, and the first tube (4) has a second end (7) arranged at a distance from the closed end (8) of the second tube (5). The first tube (4) is fluidly connected to the second tube (5) via the second end (7). The pulsation damper is capable of damping pressure pulses within a broad frequency range. Furthermore a vapour compression system (14) having a pulsation damper (1) arranged in an economizer line (20).