Courtesy of CM/Flodyne/Hydradyne Motion Control Hydraulic Pneumatic Electrical Mechanical (800) 46-5480 www.cmafh.com Check valve, pilot operated Type ZS Size 6 Component series 6X Maximum operating pressure 35 bar [4568 psi] Maximum flow 60 l/min [5.8 US gpm] Table of contents Contents Page Features Ordering code Symbols 3 Function, sections 4, 5 Technical data 6 Characteristic curves 7 Unit dimensions 8 Information on available spare parts: www.boschrexroth.com/spc Features RE 548/0.09 Replaces: 07.05 tb056 Sandwich plate valve for use in vertical stackings /8 Porting pattern according to DIN 4340 form (without locating bore) (standard) Porting pattern according to ISO 440-03-0-05 and NFP T3.5. R-00 D03 (with locating bore) For the leak-free blocking of one or two actuator ports, optionally Various cracking pressures Special versions upon request Supplementary documentation: Sandwich plates NG6, see RE 48050 Hydraulic fluids on mineral oil basis, see RE 900
/8 osch Rexroth G Hydraulics ZS 6 RE 548/0.09 Courtesy of CM/Flodyne/Hydradyne Motion Control Hydraulic Pneumatic Electrical Mechanical (800) 46-5480 www.cmafh.com Ordering code Check valve, sandwich plate Size 6 = 6 Leak-free blocking in channel and = Leak-free blocking in channel = Leak-free blocking in channel = Cracking pressure.5 bar [.7 psi] = 3 bar [43.5 psi] = 6 bar [86.0 psi] = 3 Component series 60 to 69 = 6X (60 to 69: unchanged installation and connection dimensions) Surface without corrosion resistance ) = No code Seal material NR seals = No code FKM seals = V Note! With regard to the selection, observe the dependency of the operating parameters (fluid, temperature, etc.)! ) Corrosion-resistant surface upon request. ) Locating pin ISO 875-3x8-St, material no. R900005694 (separate order) ZS 6 6X * Further details in the clear text Special version No code = Without SO40 = Opening via external port G/4 (only version and ) SO55 = With pre-opening SO60 = Pilot piston to T port unloaded SO50 = With pre-opening and open control from channel P Symbols (examples), see page 3 No code = Without locating bore /60 ) = With locating bore /6 = With locating bore and locating pin ISO 875-3x8-St
RE 548/0.09 ZS 6 Hydraulics osch Rexroth G 3/8 Courtesy of CM/Flodyne/Hydradyne Motion Control Hydraulic Pneumatic Electrical Mechanical (800) 46-5480 www.cmafh.com Symbols ( = device side, = plate side) Type ZS 6 P T Type ZS 6 P T Type ZS 6 SO40 P T,0 Type ZS 6 SO50 P T G/4 Type ZS 6 and ZS 6 SO55 P T Type ZS 6 SO60 P T
4/8 osch Rexroth G Hydraulics ZS 6 RE 548/0.09 Courtesy of CM/Flodyne/Hydradyne Motion Control Hydraulic Pneumatic Electrical Mechanical (800) 46-5480 www.cmafh.com Function, sections, sample circuit The non-return valve Type ZS is a pilot operated check valve in sandwich plate design. It is used for the leak-free blocking of one or two actuator ports, also in case of longer standstill times. In the direction to or to, there is a free flow, in the opposite direction, the flow is blocked. Type ZS 6 Type ZS 6 3 If the valve is, for example, flown through in the direction to, the pilot piston () is moved towards the side and pushes the poppet () off its seat. Now, hydraulic fluid can flow from to. In order to allow for a safe closing of the poppets (), the pilot piston () must be hydraulically unloaded (see sample circuit). P T Sample circuit, schematic = Device side = Plate side Pilot piston, area Poppet, area 3 Positive stop
RE 548/0.09 ZS 6 Hydraulics osch Rexroth G 5/8 Courtesy of CM/Flodyne/Hydradyne Motion Control Hydraulic Pneumatic Electrical Mechanical (800) 46-5480 www.cmafh.com Function, sections Type ZS 6 SO40 Type ZS 6 SO60 SO55 version (with pre-opening) This valve is provided with an additional pre-opening feature. y pressurization of the X port, the pilot piston () is moved to the right. y doing so, you firstly push the ball (5) off the seat and then the poppet (). Now, the valve can also be flown through from to. Type ZS 6 SO55 T T 4 3 3 G/4 = Device side = Plate side Pilot piston, area Poppet, area 3 Positive stop Due to the pre-opening, there is a damped decompression of the pressurized fluid. Thus, possible switching shocks are avoided. Pilot piston, area Poppet, area 4 Pre-opening, area 3
6/8 osch Rexroth G Hydraulics ZS 6 RE 548/0.09 Courtesy of CM/Flodyne/Hydradyne Motion Control Hydraulic Pneumatic Electrical Mechanical (800) 46-5480 www.cmafh.com Technical data (For applications outside these parameters, please consult us!) general Weight kg [lbs] ca. 0.8 [.76] Installation position mbient temperature range C [ F] 30 to +80 [ to +76] (NR seals) 0 to +80 [ 4 to +76] (FKM seals) hydraulic Maximum operating pressure bar [psi] 35 [4568] Cracking pressure in free direction See characteristic curves page 6 Maximum flow l/min [USgpm] 60 [5.8] Flow direction See symbols page 3 Hydraulic fluid ) Suitable for NR and FKM seals ) The cleanliness classes specified for the components must be adhered to in hydraulic systems. Efficient filtration prevents malfunctions and at the same time prolongs the service life of components. For the selection of the filters, see data sheets RE 50070, RE 50076, RE 5008, RE 50086, RE 50087 and RE 50088. Mineral oil (HL, HLP) according to DIN 554 ) ; other hydraulic fluids upon request Hydraulic fluid temperature range C [ F] 30 to +80 [ to +76] (NR seals) 0 to +80 [ 4 to +76] (FKM seals) Viscosity range mm /s [SUS].8 to 500 [35 to 30] Maximum permitted degree of contamination of the hydraulic fluid - Class 0/8/5 ) cleanliness class according to ISO 4406 (c) rea ratio without pre-opening / ~ /3.5 (see section page 4) with pre-opening 3 / ~ /.5 (see section page 4) ny
RE 548/0.09 ZS 6 Hydraulics osch Rexroth G 7/8 Courtesy of CM/Flodyne/Hydradyne Motion Control Hydraulic Pneumatic Electrical Mechanical (800) 46-5480 www.cmafh.com Characteristic curves (measured with HLP46, ϑ oil = 40 C ± 5 C [04 F ± 9 F]) Pressure differential in bar [psi] [6] [50] [00] [50] [00] [50] [0] 8 6 4 0 8 6 4 0 0 p-q V characteristic curves 0 0 30 40 50 60 [0] [] [] [3] [4] [5] [6] [7] [8] [9] [0] [] [] [3] [4] [5] [5.85] Flow in l/min [US gpm] Cracking pressure:.5 bar [.7 psi] 3 bar [43.5 psi] 3 6 bar [87.0 psi] 4 Check valve opened by piston 5 Free flow (without check valve insert), version and 3,,3 4,,3 4 5,,3 4 5 4
8/8 osch Rexroth G Hydraulics ZS 6 RE 548/0.09 Courtesy of CM/Flodyne/Hydradyne Motion Control Hydraulic Pneumatic Electrical Mechanical (800) 46-5480 www.cmafh.com Unit dimensions (dimensions in mm) [0.8] 7 L 80 [3.5] L 44,5 [.75] P 9 [0.75] 4 x 5,4 [Ø0.] 6 3 F F4 5 4 Device side porting pattern according to DIN 4340 form (without locating bore), or ISO 440-03-0-0-05 (with locating bore Ø4 x 4 mm deep) and NFP T3.5. R-00 D03 Plate side porting pattern according to DIN 4340 form (without locating bore), or ISO 440-03-0-0-05 (with locating bore for locating pin ISO 875-3x8-St; version /60 and /6 ) and NFP T3.5. R-00 D03 3 Nameplate 4 Through bore for valve mounting 5 Identical seal rings for ports,, P, T 6 Locating pin ISO 875-3x8-St (only version /6") 7 Plug screw /F, Tightening torque M T = 5 +5 Nm [8.4 +3.7 ft-lbs] osch Rexroth G Hydraulics Zum Eisengießer 9786 Lohr am Main, Germany Phone +49 (0) 93 5 / 8-0 Fax +49 (0) 93 5 / 8-3 58 documentation@boschrexroth.de www.boschrexroth.de T G F F3 L in mm [inch] 4,5 [0.96] No code SO40 SO55 SO60 SO50 [0.43] [0.43] [0.43].5 ) [0.85] [0.43].5 [0.85] ) Maximum dimension on the side of the check valve use 7 [.57] 40 0,0/00 [0.0004/4.0] Rzmax 4 Valve mounting screws (separate order) 4 hexagon socket head cap screws ISO 476 - M5-0.9 4 hexagon socket head cap screws 0-4 UNC Note! Required surface quality of the valve mounting face The length of the valve mounting screws of the sandwich plate valve (screw-in depth 0 mm [0.39 inch]) must be selected according to the components mounted under and over the check valve. Depending on the application, screw type and tightening torque must be adjusted to the circumstances. Please ask Rexroth for screws with the required length. This document, as well as the data, specifications and other information set forth in it, are the exclusive property of osch Rexroth G. 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 given does not release the user from the obligation of own judgment and verification. It must be remembered that our products are subject to a natural process of wear and aging.