Meter-in pressure compensator, direct operated RE 94/.07 Replaces: 0.0 / ype ZDC Sizes 0 to Component series Maximum operating pressure bar Maximum flow l/min tb07 able of contents Content age Features Ordering code Symbols, Function, section echnical data 4 Characteristic curves 5, 6 Unit dimensions 7 to 0 ilot oil supply, Features Sandwich plate valve orting pattern to ISO 440 Load compensation in channel or by integrated shuttle valve -way design -way design (sizes 0 to 5) Flow control in interaction with proportional directional valve Information on available spare parts: www.boschrexroth.com/spc
/ osch Rexroth G Hydraulics ZDC RE 94/.07 Ordering code ZDC * Size 0 = 0 Size 6 = 6 Size 5 = 5 Size (variant only) = -way design (pressure reducing function) -way design (pressure relief function) = = Component series 0 to 9 = (0 to 9: unchanged installation and connection dimensions) ilot oil supply internal = No code ilot oil supply external = ilot oil supply external, port on component side = L plugged (size 0 only) M = V = No code = J = Further details in clear text Seal material NR seals FKM seals (other seals on request) ttention! Observe compatibility of seals with hydraulic fluid used! Without special type of protection Seawater-resistant Standard types and components can be found in the ES (standard price list). Symbols: -way design ( = component side, = plate side) ilot oil supply internal ype ZDC. -/ ilot oil supply external ype ZDC. -/ ilot oil supply external, port on component side plugged (size 0 only) ype ZDC 0 -/L
RE 94/.07 ZDC Hydraulics osch Rexroth G / Symbols: -way design ( = component side, = plate side) ilot oil supply internal ype ZDC. -/ ilot oil supply external ype ZDC. -/ ilot oil supply external, port on component side plugged (size 0 only) ype ZDC 0 -/L Function, section Valves of type ZDC are direct operated meter-in pressure compensators of - or -way design. hey are used for load compensation as meter-in pressure compensator in channel. hese valves basically consist of housing (), control spool (), compression spring () with spring plate (4), and cover (5) with integrated shuttle valve (6). Compression spring () holds control spool () in the open position from to, when pressure differential or is less than 0 bar. When the pressure differential exceeds 0 bar, control spool () is pushed to the left until the pressure differential is restored. Section 6 5 4
4/ osch Rexroth G Hydraulics ZDC RE 94/.07 echnical data (for applications outside these parameters, please consult us!) General Size Size 0 6 5 Weight kg.0.5 8.9 64.7 Installation position Optional Hydraulic Maximum operating pressure orts,, bar ort bar ort bar 0 to 00 ort bar ; up to 0 bar in conjunction with pilot operated proportional directional valve Maximum flow l/min 85 5 Hydraulic fluid Mineral oil (HL, HL) to DIN 554 ) ; fast bio-degradable hydraulic fluids to VDM 4568 (see also RE 90); HEG (rape seed oil) ) ; HEG (polyglycols) ) ; HEES (synthetic esters) ) ; other hydraulic fluids on request Hydraulic fluid temperature range C 0 to +70 Viscosity range mm /s 5 to 80 ermissible max. degree of contamination of the hydraulic fluid - cleanliness class to ISO 4406 (c) Class 0/8/5 ) ) Suitable for NR and FKM seals ) Suitable only for FKM seals ) he cleanliness classes specified for components must be adhered to in hydraulic systems. Effective filtration prevents malfunction and, at the same time, prolongs the service life of components. For the selection of filters, see data sheets RE 070, RE 076, RE 08, RE 086, RE 087 and RE 088.
RE 94/.07 ZDC Hydraulics osch Rexroth G 5/ Characteristic curves (measured with HL46 and ϑ oil = 40 C ±5 C) Flow control to, to Flow in l/min Flow in l/min 80 70 60 40 0 0 0 75 5 00 0 0 40 60 80 00 Command value in % 75 5 Size 0 Size 0 With type 4WRZ 0 85 With type 4WRZ 0 With type 4WRZ 0 5 4 With type 4WRZ 0 64 4 5 6 ressure differential in bar 5 With type 4WRZ 0 6 With type 4WRZ 0 6 Size 6 Size 6 ressure differential in bar 40 0 0 0 0 0 40 60 80 Flow in l/min 40 0 0 0 Flow control range Flow control range hrottling range ressure differential p min = p pump p load hrottling range 0 0 40 60 80 00 Command value in % 0 5 75 00 5 75 Flow in l/min With type 4 WRZ 6 00 With type 4 WRZ 6 ressure differential p min = p pump p load
6/ osch Rexroth G Hydraulics ZDC RE 94/.07 Characteristic curves (measured with HL46 and ϑ oil = 40 C ±5 C) Flow control to, to Flow in l/min Flow in l/min 00 00 00 700 600 0 400 00 00 00 Size 5 Size 5 0 0 40 60 80 00 Command value in % With type 4 WRZ 5 70 With type 4 WRZ 5 5 Size Size ressure differential in bar ressure differential in bar 40 0 0 0 40 0 0 0 Flow control range hrottling range 0 00 00 00 Flow in l/min ressure differential p min = p pump p load Flow control range hrottling range 0 0 40 60 80 00 Command value in % 0 00 00 00 400 0 600 700 Flow in l/min With type 4 WRZ 60 With type 4 WRZ ressure differential p min = p pump p load
RE 94/.07 ZDC Hydraulics osch Rexroth G 7/ Unit dimensions: Size 0 (dimensions in mm),8 70 5 70 6 4 x 6,6 5 4 7 F F 5,5 F4 F 48,5,5 0,0/00 Rzmax 4 Required surface quality of valve mounting face Nameplate 4 Idential seal rings for ports,,, ; Idential seal rings for ports, (plate side) 5 orting pattern ISO 440-05-05-0-05 6 Valve mounting screws (see on the right) Valve mounting screws (separate order) 4 hexagon socket head cap screws ISO 476 - M6-0.9 Note! he length and tightening torque of the valve mounting screws must be calculated in conjunction with the components mounted below and above the sandwich plate valve.
8/ osch Rexroth G Hydraulics ZDC RE 94/.07 Unit dimensions: Size 6 (dimensions in mm) 60 4 x x 6,6 0,5 5 4 66 6 6 F F5 F G 9 0,0/00 Rzmax 4 F4 G F6 F Required surface quality of valve mounting face 5 5,5 Nameplate Locating pin ore for locating pins 4 Idential seal rings for ports,,, ; Idential seal rings for ports, (plate side) 5 orting pattern ISO 440-07-07-0-05 6 Valve mounting screws (see on the right) Valve mounting screws (separate order) 4 hexagon socket head cap screws ISO 476 - M0-0.9 hexagon socket head cap screws ISO 476 - M6-0.9 Note! he length and tightening torque of the valve mounting screws must be calculated in conjunction with the components mounted below and above the sandwich plate valve.
RE 94/.07 ZDC Hydraulics osch Rexroth G 9/ Unit dimensions: Size 5 (dimensions in mm) 4 44 8 4 6 60 0,5 F F5 G F 7 0,0/00 Rzmax 4 6 6 x 4 F4 G F6 5 F,5 Required surface quality of valve mounting face Nameplate Locating pin ore for locating pins 4 Idential seal rings for ports,,, ; Idential seal rings for ports, (plate side) 5 orting pattern ISO 440-08-08-0-05 6 Valve mounting screws (see on the right) Valve mounting screws (separate order) 6 hexagon socket head cap screws ISO 476 - M - 0.9 Note! he length and tightening torque of the valve mounting screws must be calculated in conjunction with the components mounted below and above the sandwich plate valve.
0/ osch Rexroth G Hydraulics ZDC RE 94/.07 Unit dimensions: Size (dimensions in mm) 6 x 6 5 4 00 4 00 65 70 6 F F6 G F4 75 5 95 0,5 F G F5 F,5 440 70 60 4,5 0,0/00 Rzmax 4 Required surface quality of valve mounting face Nameplate Locating pin ore for locating pins 4 Idential seal rings for ports,,, ; Idential seal rings for ports, (plate side) 5 orting pattern ISO 440-0-09-0-05 6 Valve mounting screws (see on the right) Valve mounting screws (separate order) 6 hexagon socket head cap screws ISO 476 - M0-0.9 Note! he length and tightening torque of the valve mounting screws must be calculated in conjunction with the components mounted below and above the sandwich plate valve.
RE 94/.07 ZDC Hydraulics osch Rexroth G / ilot oil supply ttention! In conjunction with the meter-in pressure compensator the pilot operated proportional valve must be used in the variant with external pilot oil supply! With external pilot oil supply the connection to channel is closed. he pilot oil is taken from a separate control circuit. With internal pilot oil supply the connection to channel is open. he pilot oil is taken from the throttle side of the pressure compensator (port in the subplate is closed). ype 4WRZ ype 4WRZ a a 0 b b a a 0 b b ype ZDC..-/ ype ZDC..-/ Size 0 Internal External Size 6 Section Internal External
/ osch Rexroth G Hydraulics ZDC RE 94/.07 ilot oil supply Size 5 C Section C C Internal C External Size D Section D D Internal D External osch Rexroth G Hydraulics Zum Eisengießer 9786 Lohr am Main, Germany hone +49 (0) 9 5 / 8-0 Fax +49 (0) 9 5 / 8-58 documentation@boschrexroth.de www.boschrexroth.de his 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. he 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. he 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.