叠加式减压阀原理和结构.pdf

Stacking Pressure Reducing Valve, 10 mm With integral Bypass Check Valve, Seated Pilot Stage, Spool−type Main Stage, Series SDRB ... 350 bar, 100 l/min Optionally available with hand knob Mounting interface to With two−stage 10 mm pressure re- or lockable hand knob adjuster ISO 4401 / CETOP R35H size 5, ducing cartridge DRPA−5−10 ... Also available with solenoid con- NFPA D05, DIN 24 340 A10 350 bar, 100 l/min on all ports trolled two−pressure cartridge Pilot stage is drained to port T WDRVPB−5...−10 1. Description Series SDRB...−10 stack valves are (A1, B1) rises above the setting, the P−10... is provided with a G 1/4 gauge used as pressure reducing valves in pressure reducing function becomes connection on the secondary pressure the P−, A− or B−lines. They are active. The control spool holds the side. The bypass check valve in mo- equipped with the two−stage pressure pressure in P1 (A1, B1) at the valve set- dels SDRB−AR / BR−10... allows re- reducing cartridge type DRPA−5−10..., ting, independently of the primary pres- verse flow from A1 to A or B1 to B. The the pilot stage is drained to port T. While sure at P (A, B). Pilot flow occurs only screw−in design of the cartridge valve the pressure in P1 (A1, B1) remains while the reducing function is active provides for straight−forward, trouble− below the valve setting, the connection and is approximately 300 cc/min (see free maintenance. Interface sealing is P → P1 (A → A1, B → B1) remains fully Performance graphs). Model SDRB− by means of a seal plate and 5 O−rings. open. As soon as the pressure in P1 2. Symbols P1 T Valve side B A P T Valve side B A