The Drive & Control Company Rexroth Bosch Group Check valve Type Z1S ► Size 6 ► Component series 4X ► Maximum operating pressure 350 bar [5076 psi] ► Maximum flow 40 l/min [10.6 US gpm] ► Sandwich plate valve for use in vertical stackings - as angle valve - as straight-through valve ► Porting pattern according to ISO 4401-03-02-0-05 and NFPA T3.5.1 R2-2002 D03 ► Various one- and two-channel blocking functions ► Perfect leak-tightness due to poppet made of high-performance plastic ► Corrosion-resistant surface upon request ► Easily adjustable to special hydraulic fluids by exchanging the external seal rings ► With measuring ports, optional ► As throttle check valve upon request Features Ordering codes Symbols Function, sections Technical data Characteristic curves Dimensions Notices Troubleshooting Check valve installation set: Disassembly and assembly Additional information RE 21534, edition: 2015-08, Bosch Rexroth AG

1 Locking pin ISO 8752-3x8-St, material no. R900005694 (separate order) Bosch Rexroth AG, RE 21534, edition: 2015-08

Symbols: Straight-through valve (① = component side, ② = plate side) Type Z1S 6 A… Symbols: Angle valve (① = component side, ② = plate side) Type Z1S 6 AB-P…

Type Z1S 6 P.-4X/...SO68 (check valve in channel P, measuring port P Out G1/4) Type Z1S 6 P.-4X/...SO118 (check valve in channel P, measuring port P Out G1/4) Type Z1S 6 P.-4X/...SO104 (check valve in channel P, direction of flow P1 P2) Bosch Rexroth AG, RE 21534, edition: 2015-08

Function, sections The valve type Z1S is a direct operated check valve in sandwich plate design. It is used for the leakage-free blocking in one direction and allows for free flow in the opposite direction. The stroke of the poppet (1) is limited by the plastic socket (2). The installed spring (3) supports the closing movement. When no fluid flows through the valve, the spring (3) keeps the poppet (1) in closed position. In contrast to the straight-through valve (section 1), the angle valve (section 2) links or closes off up to three internal channels. Stop and sealing function are taken over...

Important information on hydraulic fluids: ► For more information and data on the use of other hydraulic fluids, please refer to the data sheets above or contact us! ► There may be limitations regarding the technical valve data (temperature, pressure range, life cycle, maintenance intervals, etc.)! ► The flash point of the hydraulic fluid used must be 40 K higher than the maximum solenoid surface temperature. ► Flame-resistant - containing water: - Maximum pressure differential per control edge 50 bar - Pressure pre-loading at the tank port > 20 % of the pressure differential, otherwise increased...

Characteristic curves: Straight-through valve (measured with HLP46, 8oil = 40 ± 5 °C [104 ± 9 °F]) Flow in l/min [USgpm] 1 Cracking pressure 0.5 bar 2 Cracking pressure 1.5 bar 3 Cracking pressure 3 bar 4 Cracking pressure 5 bar Characteristic curves: Angle valve (measured with HLP46, 8oil = 40 ± 5 °C [104 ± 9 °F]) Flow in l/min [USgpm] RE 21534, edition: 2015-08, Bosch Rexroth

Required surface quality of the valve contact surface 1 Name plate 2 Identical seal rings for ports A, B, P, T (plate side) 3 Plastic socket, blue (plate side) 4 Valve mounting bores 5 Porting pattern according to ISO 4401-03-02-0-05 and NFPA T3.5.1 R2-2002 D03 6 Plug screw for measuring port, tightening torque MA = 30 Nm [22.1 ft-lbs] +10 % 7 Locking pin ISO 8752-3x8-St (only version "60" and "62") 8 Bore for locking pin (only version "60" and "62") Valve mounting screws (separate order) 4 hexagon socket head cap screws ISO 4762 - M5 - 10.9 4 hexagon socket head cap screws 10-24 UNC \0T Notice:...

Dimensions: Angle valve (dimensions in mm [inch]) Design Required surface quality of the valve contact surface 1 Name plate 2 Identical seal rings for ports A, B, P, T (plate side) 3 Plastic socket, blue (plate side) 4 Valve mounting bores 5 Porting pattern according to ISO 4401-03-02-0-05 and NFPA T3.5.1 R2-2002 D03 7 Locking pin ISO 8752-3x8-St (only version "60" and "62") 8 Bore for locking pin (only version "60" and "62") 9 Plug screw, tightening torque MA = 55 Nm [40.6ft-lbs] +10 % Valve mounting screws (separate order) 4 hexagon socket head cap screws ISO 4762 - M5 - 10.9 4 hexagon socket...

► Valve housing (steel) and plastic spool with plastic socket can be disassembled into individual components for proper disposal. ► The check valve installation set is available separately (plastic socket, plastic spool, spring): Email: [email protected] ► The plastic socket has a sealing function and may therefore not be damaged! ► For installation and disassembly of the check valve installation set, a special multi-purpose tool is required see page 11. 1) Use the special multi-purpose tool to avoid damaging the plastic socket, see page 11! Bosch Rexroth AG, RE 21534, edition: 2015-08...

Check valve installation set: Disassembly and assembly Disassembly/assembly without causing damage is achieved by using the special multi-purpose tool (1)(separate order, material no. R901182853). Disassembly: Push out the check valve installation set. Assembly: Insert the check valve installation set and push in the plastic socket (2). With correct assembly using the special multi-purpose tool (1), the protrusion of the plastic socket (2) is approx. 0.3 mm [0.0118 inch]. Notice: Once removed, plastic sockets may no not be used again. Additional information ▶▶ Sandwich plates size 6 ▶▶ Hydraulic...

Bosch Rexroth AG Hydraulics Zum Eisengießer 1 97816 Lohr am Main, Germany Phone +49 (0) 93 52 / 18-0 [email protected] www.boschrexroth.de Bosch Rexroth AG, RE 21534, edition: 2015-08 © This document, as well as the data, specifications and other information set forth in it, are the exclusive property of Bosch Rexroth AG. It may not be reproduced or given to third parties without its consent. The data specified above only serve to describe the product. No statements concerning a certain condition or suitability for a certain application can be derived from our information. The information...