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Various Types Water Equpmenf m2 iitoVariousTypesof Water Equpmentcat-No.78E since2017● Can be used at working pressures up to 70 MPa with tap water as the　hydraulic fluid. ● The joints are made of stainless steel. ● The standard overall length is 2 m. Hoses having an overall length other　than 2 m can be manufactured. (Make-to-order products)*For precautions for and maintenance of water high-pressure nylon hoses, see page 179. *Water high-pressure nylon hoses with couplers at both ends are not filled with hydraulic fluid. Use the hose after air vent. ■WNH3/8-2NCMaximumModeloperating pressure MPaWNH3/870ModelMaximum operating pressureMPaWOC-13RWOC-13HWS-1RWS-1H■WOC-13R70■WS-1R● Do not hold a water high-pressure nylon hose while pressure is applied. If the hose is broken while held by hand, the high-pressure water could spurt and cause severe injury, for example, a pierced hand. ● Before work starts, check the following: damage to the hose, swelling of the hose (sheath), exposure of the reinforced layer (external damage), bent (deformation), leakage from the joints, etc. If any of the above problems is found, replace the hose with new one immediately because the use of a damaged hose is dangerous. Even if there are no abnormalities in appear-ance, there may be scratches, pinholes, etc. inside the hose. Replace the hose regularly taking the operating conditions into account. ● Pressure must not be applied to a WS-1 series coupler alone. Otherwise,　the equipment may be damaged. ● It is dangerous to connect or disconnect the couplers while pressure is　applied. Doing so may allow compressed water to flow out, causing injury. Operatingtemperature range Hydraulic°CfluidTap water0 to 50(Note 1)Hydraulic fluidTap water■WOC-13H■WS-1H■WNH3/8Threadsize RMaterialoverall length Nylon3/8Operating fluid temperature rangeApprox. weight°Ckg0.10.150.130.120 to 505 to 50Model code structureModel code structureStandardExpansionvolume cm3/mVolumecm3/m31.24.8■Hydraulic symbol (coupled couplers) Accessory(duster cap)WOC-13R-DCWOC-13H-DCS-1R-DCS-1H-DC■WOC-13 External drawing of couplings ■WS-1 External drawing of couplingsOverall length (m)Thread sizeWater high-pressure nylon hoseThread sizeWater coupler13:3/8 (WOC) 1:3/8 (WS) WOC:One-touch couplerWS:Standard coupler X:With WOC-13H on one side XW:With WOC-13H on both sidesY:With WS-1H on one side YW:With WS-1H on both sidesNC:No couplersR:Cylinder side couplerH:Hose side couplerAttached couplerMinimumbend radius Approx. weightkg/m0.21(Note 2)mm55Various Types of Water Equipment70 MPa High-Pressure Nylon HosesNote 1. The operating temperature range shown above can be applied to the hose alone.Note 2. The approx. weight represents the weight of the hose alone. It does not include the joints at both ends and the protection.70 MPa Water Couplers● Can be used at working pressures up to 70 MPa with tap water as the　hydraulic fluid. ● Equipped with a lock mechanism to prevent detachment. (WOC only)● Securely and completely connect the couplers. Not doing so could cause　pressure not to rise, the hydraulic fluid not to flow, or other problems. ● If the pressure fluctuates often or vibration is transmitted to the couplers,　regularly check the looseness of the cap nut. ● If a cylinder that works normally with WS-1 series couplers stops suddenly,　the most likely cause is looseness (a gap) between the couplers. Tighten the couplers again using a tool if a gap exists. ● A duster cap is included with a coupler. Attach the cap to the coupler after　use to prevent dust.■ Specifications■ Specifications220WNH3/8-2XWOC-13R