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Safety valve main application
Ensure post rated working resistance and setting load requirements and to support function overload can be played the role of unloadingoverflow.
Safety valve scope
The control unit key loop system of hydraulic support, application anda hydraulic one-way valve. Hydraulic control valve group.
Safety valve main parameter
Rated nominal flow rate：125L/min Nominal pressure rating： 50MPa
FAD125/50 type safety valve is the key element to maintain constant resistance characteristics of column. It has long been working under high pressure. The safety valve must be good sealing performance,can guarantee the support working resistance and stable working state, so the requirements of the safety valve action is sensitive,reliable sealing, long service life.
Type safety valve Material carbon steel Type FAD160/50 Applicable range of
equipment support
Product name safety valve
Nominal pressure 50（MPa）
Type (channel) straight type connection joint
Spare parts and accessories Drive hydraulic control
The main material carbon steel
Safety valve structure feature
Safety valve for the straight type, the axial tube valve type and specialtype O sealing ring spring balance structure. Has the advantages of simple structure, reliable and sensitive work.
Safety valve working principle
Its working principle is to open and close the hydraulic overflow effectto achieve valve by utilizing the interaction of liquid pressure and spring force. Its working principle is to open and close the hydraulicoverflow effect to achieve valve by utilizing the interaction of liquidpressure and spring force. The main component of it is core, the special O type sealing ring spring. With an axial hole in the center of the valve core, a radial hole in the upper part, the axial hole and radial Kong Xiangtong, O type sealing ring lock in the body. When the oil pressure is lower than the spring force, the spring seat spring will spool downward pressure, the radial hole below the sealing ring,locking column cylinder oil. When lower oil pressure gradually increased, the spool up acting on the spool force greater than the spring force, radial hole, until the spool across the seal ring, began topressure relief, post subarachnoid pressure drops to a certain value,the spring back pressure valve. Column cylinder oil re closed. The size of the spring force available pressure regulating screw mediation.
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