RIES TECHNOLOGY s.r.l. Check valve, pilot operated RE 558/07.0 Replaces: 08.05 /8 Type ZS Size 6 Component series 5X Maximum operating pressure 35 bar [568 psi] Maximum flow 300 l/min [79. US gpm] K30/ Table of contents Contents Page Features Ordering code Symbols Function, sections, circuit example 3, Technical data 5 Characteristic curves 6 Unit dimensions 7, 8 Features Sandwich plate valve for use in vertical stackings Porting pattern according to ISO 0-07-07-0-05 and NFP T3.5. R-00 D07 For the leak-free blocking of one or two actuator ports, optionally Different cracking pressures With pre-opening Check valve installation sets separately available Special versions upon request mending documentation: "Sandwich plates size 6", data sheet 805 "Hydraulic fluids on a mineral oil basis", data sheet 900 Information on available spare parts: www.boschrexroth.com/spc
/8 osch Rexroth G Hydraulics ZS 6 RE 558/07.0 Ordering code ZS 6 5X * RIES TECHNOLOGY s.r.l. 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 3 bar [3.5 psi] = 5 bar [7.5 psi] = 7.5 bar [08.8 psi] = 3 0 bar [5.0 psi] = Component series 50 to 59 = 5X (50 to 59: unchanged installation and connection dimensions) Surface without corrosion resistance ) = no code Further details in the plain text Special version no code = Without SO0 = Control open by external port G/ (only version "" or "") SO60 = Control spool to "T" port unloaded no code = V = Seal material NR seals FKM seals Note! The selection depends on the operating parameters (fluid, temperature, etc.)! ) Corrosion-resistant surface upon request: e.g. "J50" thick layer passivated (DIN 50979 Fe//Zn8//Cn//T0) Symbols: Examples ( = component side, = plate side) Type ZS 6 Type ZS 6 and ZS 6 SO55 L P X Y T L P X Y T Type ZS 6 L P X Y T Type ZS 6 SO0 G/ Type ZS 6 SO60 L P X Y T L P X Y T
RE 558/07.0 ZS 6 Hydraulics osch Rexroth G 3/8 Function, sections, circuit example The isolator valve Type ZS is a releasable 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. If the valve is, for example, flown through in the direction to, the control spool () is moved in the direction side, opens the ball seat valve () and then pushes the poppet (3) off its seat. Now, hydraulic fluid can flow from to. In order to allow for safe closing of the ball seat valve (), the control spool () must be hydraulically unloaded (see circuit example). Due to the pre-opening, there is a damped decompression of the pressurized liquid. Thus, possible switching shocks are avoided. Pre-opening Due to the two-stage structure with enlarged control open ratio, safe unloading is also possible with lower pilot pressure. voidance of switching shocks due to dampened decompression of the pressure volume on the actuator side. RIES TECHNOLOGY s.r.l. P T 3 Type ZS 6 Circuit example, schematic = component side = plate side Type ZS 6 Control spool, area all, area 3 3 Poppet, area Positive stop
/8 osch Rexroth G Hydraulics ZS 6 RE 558/07.0 Function, sections RIES TECHNOLOGY s.r.l. Type ZS 6 SO0 G/ 3 5 T = component side = plate side Control spool, area all, area 3 Type ZS 6 SO60 3 Poppet, area Positive stop 5 Control spool, area
RE 558/07.0 ZS 6 Hydraulics osch Rexroth G 5/8 Technical data (For applications outside these parameters, please consult us!) general Weight kg [lbs] pprox. 6.5 [.3] Installation position mbient temperature range C [ F] 30 to +80 [ to +76] (NR seals) 0 to +80 [ to +76] (FKM seals) ny hydraulic Maximum operating pressure bar [psi] 35 [568] Cracking pressure in free direction See characteristic curves page 6 Maximum flow l/min [US gpm] 300 [79.] Direction of flow See symbols page Hydraulic fluid Hydraulic fluid temperature range (at the valve working ports) On mineral oil basis and related hydrocarbons (HL, HLP, HVLP, HVLPD, etc.) according to DIN 55 Flame-resistant (HFC, HFDU, HFDR) according to ISO 9 ) Environmentally compatible (HETG, HEES, HEPG, HEPR) according to ISO 5380 ) Other hydraulic fluids upon request C [ F] 30 to +80 [ to +76] (NR seals) 0 to +80 [ to +76] (FKM seals) Viscosity range mm /s [SUS].8 to 500 [35 to 30] Maximum permitted degree of contamination of the hydraulic fluid - cleanliness class according to ISO 06 (c) Class 0/8/5 ) rea ratio with pre-opening 3 / ~ / (see sectional drawing pages 3 and ) Version "SO60" / ~ /7 (see sectional drawing page ) ) When using flame-resistant or environmentally compatible hydraulic fluids, restrictions with regard to the technical data may be applicable (temperature, pressure range, life time, maintenance intervals, etc.). ) The cleanliness classes specified for the components must be adhered to in hydraulic systems. Effective filtration prevents faults and at the same time increases the service life of the components. For the selection of the filters see www.boschrexroth.com/filter. Note! Selection of the perfect sealing material (see ordering code page ) also depends on the hydraulic fluid used. RIES TECHNOLOGY s.r.l.
6/8 osch Rexroth G Hydraulics ZS 6 RE 558/07.0 Characteristic curves (measured with HLP6, ϑ Oil = 0 C ± 5 C [0 F ± 9 F]) p-q V characteristic curves [35] 30 [00] Pressure differential in bar [psi] [350] [300] [50] [00] [50] [00] [50] 5 0 5 0 5 3 5 6 [0] 0 0 50 00 50 00 50 300 [0] [0] [0] [30] [0] [50] [60] [70] [79.] Flow in l/min [US] gpm] Cracking pressure: 3 bar [3.5 psi] 5 bar [7.5 psi] 3 7.5 bar [08.8 psi] 0 bar [5.0 psi] 5 Free flow (without check valve use), version "" or "" 6 Only housing,,3,,3 5,,3 RIES TECHNOLOGY s.r.l.
RE 558/07.0 ZS 6 Hydraulics osch Rexroth G 7/8 Unit dimensions (dimensions in mm [inch]) L 80 [7.09] L 3 [0.8] 80 [3.5] 0,5 7,5 [0.] [.87] 3 T 7 5 Y x [Ø0.3] (F, F, F3, F) 6 9 [3.58] 30,5 50 [.97] [.0] L F 39 [.5] component side plate side T F G F5 P G X Y F F3 F6 x 9 [Ø0.35] (F5, F6) [0.079] 8 0,0/00 [0.000/.0] Rzmax Required surface quality of the valve mounting face Item explanations and valve mounting screws see page 8. Special version Cracking pressure Leak-free blocking in channel L in mm [inch] L in mm [inch] "no code" + " " 0 [0.39] 0 [0.39] 3 + " " 36.5 [.] 36.5 [.] + 0 [0.39] 8.5 [0.33] + 8.5 [0.33] 0 [0.39] 3 + 36.5 [.] 8.5 [0.33] 3 + 8.5 [0.33] 36.5 [.] "SO0" +, 0 [0.39] 0 [0.39] 3 + 36.5 [.] 0 [0.39] 3 + 0 [0.39] 36.5 [.] "SO60" + 0 [0.39] 8.5 [0.33] + 8.5 [0.33] 0 [0.39] 3 + 36.5 [.] 8.5 [0.33] 3 + 8.5 [0.33] 36.5 [.] RIES TECHNOLOGY s.r.l.
8/8 osch Rexroth G Hydraulics ZS 6 RE 558/07.0 Unit dimensions Name plate Through hole for valve mounting 3 Identical seal rings for ports,, P, T Identical seal rings for ports X, Y, L 5 Locating pins 6 Locating holes 7 Porting pattern according to ISO 0-07-07-0-05 and NFP T3.5. R-00 D07 8 Plug screw SW, tightening torque M = 70 Nm [5.6 ft-lbs] Valve mounting screws (separate order) hexagon socket head cap screws ISO 76 - M0-0.9 hexagon socket head cap screws ISO 76 - M6-0.9 hexagon socket head cap screws 3/8"-6 UNC hexagon socket head cap screws /"-0 UNC Note! The length of the valve mounting screws of the sandwich plate valve must be selected according to the components mounted under and over the isolator 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. RIES TECHNOLOGY s.r.l. osch Rexroth G Hydraulics Zum Eisengießer 9786 Lohr am Main, Germany Phone +9 (0) 93 5 / 8-0 Fax +9 (0) 93 5 / 8-3 58 documentation@boschrexroth.de www.boschrexroth.de 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.