A pipeline-waste-gas reduction method to reduce the amount of gas wasted by existing high-pressure pipelines having existing pipeline controllers and existing actuator-based control valves, by reducing the pressure of gas sent to existing pipeline controllers by a determined factor, consequently reducing the amount of gas wasted by the controllers, and then increasing control pressure returned by the controllers by the same factor, ensuring that the proper control pressure is sent to the existing actuator-based control valves.

A sanitary insert part includes an insert housing, which includes in a housing interior thereof a functional element that controls throughflow and that has at least one throughflow orifice. At least one throughflow opening is delimited by a peripheral wall, the shape of which can be changed against a restoring force as a result of the pressure of the inflowing water in such a manner that the at least one throughflow orifice has a variable orifice cross section which can be changed, in dependence on the pressure of the inflowing water, between an open position and a minimized position having a reduced orifice cross section by comparison.

A regulating device may include a housing that defines an inlet chamber and an outlet chamber, with a flow restriction seat between the inlet chamber and the outlet chamber. A flow restriction valve is movable relative to the flow restriction seat to adjust the flow between the inlet chamber and the outlet chamber of the regulating device. A servo valve having a servo chamber may be used to adjust the position of the flow restriction valve. The servo chamber may be fluidly coupled to the inlet chamber though a fixed flow restriction and to the outlet chamber though an adjustable flow restriction. A stepper motor may be used to adjust the servo valve to adjust the adjustable flow restriction between the servo chamber and the outlet chamber. This causes a change of the servo pressure, which moves the flow restriction valve and adjusts the flow of the regulating device.

A valve (18), for a valve assembly (10) for regulating the pressure of a fluid guided in a hydraulic system for supplying pressure to at least one hydraulic consumer (12a, 12b), includes a pilot control stage (48) and a main control stage (38) for at least partially clearing or blocking a fluid path from a supply connection (P) to an outflow connection (T). A relief stage (54) for pressure relief of a fluid chamber is arranged between the pilot control stage (48) and the main control stage (38). The relief stage (54) compares the existing load pressure at load terminal (LS) dedicated to the hydraulic consumer (12a, 12b) with the outflow pressure at the outflow connection (T), clearing the pressure relief if both pressures are approximately the same. The relief stage (54) can be directly connected to the load connection (LS) and can be charged with load pressure.

A safety valve control system may include a remotely operable control assembly, a first transducer, a valve assembly, and a compressor assembly in communication with the control assembly. The control assembly is operable to actuate the pump and valve assemblies to supply fluid to actuate the safety valve into open and closed positions, in response to one or more signals received from the first transducer. A method of operation may include maintaining the safety valve in an open or closed position while sensing a physical property with the control system; communicating a signal corresponding to the sensed physical property to the control system; and automatically closing or opening the safety valve in response to a comparison of the sensed physical property to a pre-set condition.

A safety valve control system may include a remotely operable control assembly, a first transducer, a valve assembly, and a compressor assembly in communication with the control assembly. The control assembly is operable to actuate the pump and valve assemblies to supply fluid to actuate the safety valve into open and closed positions, in response to one or more signals received from the first transducer. A method of operation may include maintaining the safety valve in an open or closed position while sensing a physical property with the control system; communicating a signal corresponding to the sensed physical property to the control system; and automatically closing or opening the safety valve in response to a comparison of the sensed physical property to a pre-set condition.

A pipeline-waste-gas reducer apparatus to reduce the amount of gas wasted by existing high-pressure pipelines having existing pipeline controllers and existing actuator-based control valves, by reducing the pressure of gas sent to existing pipeline controllers by a determined factor, consequently reducing the amount of gas wasted by the controllers, and then increasing control pressure returned by the controllers by the same factor, ensuring that the proper control pressure is sent to the existing actuator-based control valves.

A pipeline-waste-gas reduction method to reduce the amount of gas wasted by existing high-pressure pipelines having existing pipeline controllers and existing actuator-based control valves, by reducing the pressure of gas sent to existing pipeline controllers by a determined factor, consequently reducing the amount of gas wasted by the controllers, and then increasing control pressure returned by the controllers by the same factor, ensuring that the proper control pressure is sent to the existing actuator-based control valves.

The invention relates to a sanitary insert part (1) having an insert housing (2), which (2) includes in a housing interior thereof a functional element (3) that controls throughflow and that has at least one throughflow orifice (4). The insert part according to the invention is characterized in that at least one throughflow opening (4) is delimited by a peripheral wall, the shape of which can be changed against a restoring force as a result of the pressure of the inflowing water in such a manner that the at least one throughflow orifice (4) has a variable orifice cross section which can be changed, in dependence on the pressure of the inflowing water, between an open position and a minimized position having a reduced orifice cross section by comparison.

A pressure regulating valve assembly includes a housing. Also included is a valve sleeve mounted within a bore of the housing, the valve sleeve having a first portion and a second portion, the second portion having a diameter less than the first portion and received in a sense piston bore of the housing. Further included is a valve spool mounted within the valve sleeve. Yet further included is a sense piston disposed within the second portion of the valve sleeve. Also included is a damping orifice extending through an end portion of the second portion of the valve sleeve.