REGULATING DEVICE Russian patent published in 1998 - IPC

FIELD: oil and gas production industry. SUBSTANCE: this can be used for control, measuring, selection and stabilization of optimal parameters of medium. Regulating device has body with inlet and outlet passages, regulating member in the form of lock above or below seat connected through rod with movable disconnector. Additionally, device is provided with charging unit or auxiliary regulating valve, housing and (or), spring-operated regulating unit, collecting vessel and removable working cylinder for regulating member with inlet and outlet passages and external sealing members. Seating surfaces are made in body under external sealing members. Housing is provided with diaphragm, inlet and outlet passages. Outer diameter of housing corresponds to outer diameter of body. Body located in housing is made with blind bottom and non-through passage and is installed hermetically with possible fixing, rotation or displacement along axis. Inlet and outlet passages of body can be connected with corresponding passages of housing. At rotation and displacement of body, inlet and outlet passages of housing can be connected between each other through non-through passage of body, and hydraulic link between inner space of housing and body can be discontinued. Diameter of lock is larger than or equal to diameter of movable disconnector which forms regulating chamber with inner surface of removable working cylinder. EFFECT: high efficiency. 21 cl, 11 dwg