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PressureGaugesPressureSwitchesitchesBranchesCoupersilHosesJonts■External drawing of couplings(S-5)■S-5H■S-5R■S-5■S-8Sw■S-5 internal drawing ■S-3 internal drawing ■S-6/S-8 internal drawing Accessories■ Specificationscat-No.78E since2017● The S-5 series is a self-sealing type that prevents oil leakage. ● A steel duster cap is attached to the S-3 series. ● A duster cap (made of resin) is attached to the S-5 series, and a rubber duster cap is attached to the S-6 and S-8 series.■S-3■S-6Maximum operating ModelS-3RS-3HS-5RS-5HS-6RS-6HS-8RS-8H*After coupling of the couplers, tighten the set screws and secure the connection with the hexagon nuts. No.1R type coupler body2H type coupler body3Nut8O-ring (P24) 9Backup ring (for P24) NameR type coupler bodyNutNo.12S-6Hexagon socket set screw (M6 × 18 cone point)S-8Hexagon socket set screw (M6 x 20 cone point)45S-6O-ring (P24) S-8O-ring (P30) S-6Backup ring (For P24) S-8Backup ring (For P30) Hexagon nut (M6) H type coupler body■Hydraulic symbol (S-3/6/8 coupled couplers) ■S-3R■S-6R■S-8RpressureOperating fluidMPa70General hydraulic oilNameNo.1R type coupler body2H type coupler body3Nut456O-ring (P20) Ball seatSpring■S-3H■S-6H■S-8HThread sizeRc1/2Rc1/2Rc3/8Rc3/8R3/4Rc3/4R1Rc1Model code structureType (Thread size) CouplerFor S-5 series couplers, do not apply pressure to H or R type alone. Otherwise, the equipment may be damaged. 3:1/25:3/86:3/48:1NameNo.78O-ring (G30) 910Spring stopper11Spring ring12Retaining ringBackup ring (for P20) Steel ball■External drawing of couplings(S-3) HEX41■External drawing of couplings(S-6)■External drawing of couplings (S-8)HEX50Approx.weightkg0.30.280.40.251.00.61.70.8R:Cylinder side couplerH:Hose side couplerNameAccessory(duster cap)S-3R-FDCS-3H-FDCS-5R-DCS-5H-DCS-6R-DCS-6H-DCS-8R-DCS-8H-DCCouplersCouplers (S-3/S-5/S-6/S-8 Series) *When the S-3R or S-5R (cylinder-side coupler) is attached to a cylinder, a nipple (see page 184) suits the Rc threads of the coupler and cylinder is required.■Hydraulic symbol (S-5 coupled couplers) 1723R lOsi367S-