A pressure regulator (10) including: a housing (12, 14) including a flow passage (44, 46, 48); a plunger (38) configured to move within the housing, wherein the plunger is hollow and has a plunger passage (46) included in the flow passage; a valve seat (52) in the housing and disposed in the flow passage immediately upstream of an inlet (44) to the plunger passage; a shuttle (42) within the housing configured to move between an upstream-most position at which the shuttle abuts the valve seat to close the flow passage and a downstream position displaced from the valve seat which opens the flow passage; a sealed chamber (26) within the housing and between the plunger and the shuttle, wherein the sealed chamber is configured to be operated at pressures other than at atmospheric pressure; and a port (66) in the housing and open to the sealed chamber, wherein the port is configured to be connected to a source (68) of a pressurized fluid.

An example control valve is disclosed herein and includes a valve body having a substantially axial fluid flow path extending from an upstream face surface to a downstream face surface of the valve body. A crank is disposed within the valve body, and a reciprocating valve trim, external to the valve body, is coupled to the crank and abuts the downstream face surface of the valve body.

A safety valve (1) has a first valve, and a second valve, a magnetic armature (3) moved by voltage applied to a coil (2). Movement of the armature (3) acts against a spring force of the first valve spring (5) and loosens the first valve body (4) from the first valve seat (6). The movement of the armature (3) subsequently acts against a spring force of the second valve spring (8) and loosens the second valve body (7) from the second valve seat (9). This frees a valve opening for a flowthrough of the gas flow. The flowthrough amount of the gas flow through the valve opening can be continuously controlled as a function of the voltage applied to the coil (2) between a closed position and a fully open position even in partially open positions.

A double seat valve for aseptic lines for product is described, the valve comprising a valve housing, two line ports arranged on the valve housing for connecting the aseptic lines for product to the valve housing, two valve seats that are formed between the line ports on the valve housing and confine a safety chamber formed therebetween for leaks against the line ports, a first closure element which is actuatable by way of a first valve stem and acts against one of the two valve seats, and with a second closure element which is actuatable by way of a second valve stem and acts against the other of the two valve seats. T first valve stem at least in part surrounds the second valve stem, so that both are movable independently along a valve axis. The first valve stem is connected to the second valve stem by way of a diaphragm seal formed in a ring-shaped manner around the valve axis A for sealing against the safety chamber, characterized in that an outer fastening portion of the annular diaphragm seal is bent inwardly toward the valve axis by a bending angle of more than 90, so that it abuts against on a tapered surface of a first fastening element.

An example control valve is disclosed herein and includes a valve body having a substantially axial fluid flow path extending from an upstream face surface to a downstream face surface of the valve body. A crank is disposed within the valve body, and a reciprocating valve trim, external to the valve body, is coupled to the crank and abuts the downstream face surface of the valve body.

The invention relates to a dosing device having an inlet for a liquid to be delivered to a container as a dose, in particular a beverage. The device comprises a valve seat, a sealing element interacting with the valve seat and an outlet for the dose of the liquid. In order to reduce foam build-up upon delivering the liquid into the container, according to the invention the sealing element can be moved to a first and a second opening position, wherein, in the second opening position, the flow cross-section area between the valve seat and the sealing element is larger than in the first opening position. In addition, the invention relates to a dosing method comprising the supplying of a liquid to a valve which is moved to a first and second opening position.

A pressure regulator (10) including: a housing (12, 14) including a flow passage (44, 46, 48); a plunger (38) configured to move within the housing, wherein the plunger is hollow and has a plunger passage (46) included in the flow passage; a valve seat (52) in the housing and disposed in the flow passage immediately upstream of an inlet (44) to the plunger passage; a shuttle (42) within the housing configured to move between an upstream-most position at which the shuttle abuts the valve seat to close the flow passage and a downstream position displaced from the valve seat which opens the flow passage; a sealed chamber (26) within the housing and between the plunger and the shuttle, wherein the sealed chamber is configured to be operated at pressures other than at atmospheric pressure; and a port (66) in the housing and open to the sealed chamber, wherein the port is configured to be connected to a source (68) of a pressurized fluid.

A safety valve (1) has a first valve, and a second valve, a magnetic armature (3) moved by voltage applied to a coil (2). Movement of the armature (3) acts against a spring force of the first valve spring (5) and loosens the first valve body (4) from the first valve seat (6). The movement of the armature (3) subsequently acts against a spring force of the second valve spring (8) and loosens the second valve body (7) from the second valve seat (9). This frees a valve opening for a flowthrough of the gas flow. The flowthrough amount of the gas flow through the valve opening can be continuously controlled as a function of the voltage applied to the coil (2) between a closed position and a fully open position even in partially open positions.

A double seat valve for aseptic lines for product is described, the valve comprising a valve housing, two line ports arranged on the valve housing for connecting the aseptic lines for product to the valve housing, two valve seats that are formed between the line ports on the valve housing and confine a safety chamber formed therebetween for leaks against the line ports, a first closure element which is actuatable by way of a first valve stem and acts against one of the two valve seats, and with a second closure element which is actuatable by way of a second valve stem and acts against the other of the two valve seats. T first valve stem at least in part surrounds the second valve stem, so that both are movable independently along a valve axis. The first valve stem is connected to the second valve stem by way of a diaphragm seal formed in a ring-shaped manner around the valve axis A for sealing against the safety chamber, characterized in that an outer fastening portion of the annular diaphragm seal is bent inwardly toward the valve axis by a bending angle of more than 90, so that it abuts against on a tapered surface of a first fastening element.

A blowout preventer (BOP) includes a housing comprising a vertical bore extending through the housing and a shear body rotatable with respect to the vertical bore to shear an object located within the vertical bore.