Pressure relief valve, direct operated. Type ZDBY D, Z2DBY D. Features. Contents. RE Edition: Replaces: 01.09

Transcription

1 Pressure relief valve, direct operated ype ZDBY D, ZDBY D RE 5 Edition: -8 Replaces:.9 Size 6 Component series X Maximum operating pressure 35 bar Maximum flow 6 l/min tb3 Features Contents Sandwich plate valve Porting pattern according to ISO pressure ratings, optional 5 directions of action, optional With or pressure valve cartridges adjustment types, optionally: Sleeve with internal hexagon Lockable rotary knob with scale Features Contents Ordering code Symbols 3 Function, section 3 echnical data 4 Characteristic curves 5, 6 Device dimensions 9 More information RE 5, edition: -8, Bosch Rexroth AG

2 / ZDBY D, ZDBY D Pressure relief valve Ordering code Z DB Y 6 D X / V / 6 * Sandwich plate valve Z pressure valve cartridge (only with version "A" "B" and "P") no code pressure valve cartridges (only with version "C" and "D") 3 Pressure relief valve DB 4 Porting pattern according to ISO Y 5 Size Direct operated D Relief function from - to: P A B A and B A B and B A P A B C D 8 Adjustment type Sleeve with internal hexagon Lockable rotary knob with scale (only version "8") ) 3 9 Component series to 9 ( to 9: unchanged installation and connection dimensions) X Pressure rating Set pressure up to 8 bar 8 Set pressure up to 6 bar 6 Set pressure up to 35 bar 35 Seal material FKM seals V (other seals upon request) Attention! Observe compatibility of seals with hydraulic fluid used! Porting pattern according to ISO Further details in the plain text ) H-key with the Material no. R9858 is included in the scope of delivery. Notice! Preferred types and standard units are contained in the EPS (standard price list). Bosch Rexroth AG, RE 5, edition: -8

3 Pressure relief valve ZDBY D, ZDBY D 3/ Symbols ( = component side, = plate side) Version "A" Version "B" P A B P A B Version "P" M P A B Version "C" Version "D" P A B P A B Function, section Pressure valves of type ZDBY and ZDBY are direct operated pressure relief valves in sandwich plate design. hey are used for limiting a system pressure. he valves basically consist of the housing () and one or two pressure valve cartridges (). he system pressure can be set via the adjustment type (3). In the initial position the valves are closed. he pressure in channel A acts on the spool (4). If the pressure in channel A exceeds the value set at the spring (5), the pilot poppet (6) opens. Hydraulic fluid flows from channel P into channel. he pilot oil return from the spring chambers is implemented internally via channel. B P A M ype ZDBY 6 DP B P A RE 5, edition: -8, Bosch Rexroth AG

4 4/ ZDBY D, ZDBY D Pressure relief valve echnical data (For applications outside these parameters, please consult us!) general Weight Version "" kg.4 Version "3" kg.8 Installation position any Ambient temperature range C 5 +8 hydraulic Maximum operating pressure bar 35 Maximum counter pressure (port ) bar 6 Maximum set pressure bar 8; 6; 35 Maximum flow l/min 6 Hydraulic fluid see table below Hydraulic fluid temperature range C 5 +8 Viscosity range mm /s 5 Maximum permitted degree of contamination of the hydraulic fluid - cleanliness class according to ISO 446 (c) Class /8/5 ) Hydraulic fluid Classification Suitable sealing materials Standards Mineral oils and related hydrocarbons HL, HLP, HLPD FKM DIN 554 Bio-degradable insoluble in water HEG FKM VDMA 4568 HEES FKM soluble in water HEPG FKM VDMA 4568 Important information on hydraulic fluids! For more information and data on the use of other hydraulic fluids refer to data sheet 9 or contact us! here may be limitations regarding the technical valve data (temperature, pressure range, service life, maintenance intervals, etc.)! ) he 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 Bosch Rexroth AG, RE 5, edition: -8

5 Pressure relief valve ZDBY D, ZDBY D 5/ Characteristic curves: Version "A", "B", "P" and "C" (measured with HLP46, ϑ Oil = 4 ± 5 C) p-q V characteristic curves version "8" Operating pressure in bar Flow in l/min p-q V characteristic curves version "6" 8 Operating pressure in bar Flow in l/min p-q V characteristic curves version "35" Operating pressure in bar Flow in l/min RE 5, edition: -8, Bosch Rexroth AG

6 6/ ZDBY D, ZDBY D Pressure relief valve Characteristic curves: Version "D" (measured with HLP46, ϑ Oil = 4 ± 5 C) 4 p-q V characteristic curves version "8" Operating pressure in bar Flow in l/min p-q V characteristic curves version "6" Operating pressure in bar Flow in l/min 4 p-q V characteristic curves version "35" Operating pressure in bar Flow in l/min Bosch Rexroth AG, RE 5, edition: -8

7 B 4 = = Pressure relief valve ZDBY D, ZDBY D / Device dimensions: Version "A" (dimensions in mm) max 4 6 max 6 3 F F4 5,5 A P 4 x Ø5,H3 G B F F3 46,/ Rzmax 4 Required surface quality of the valve contact surface component side Porting pattern according to ISO (with locating hole Ø4 x 4 mm deep) plate side Porting pattern according to ISO (with locating hole Ø3 x 5 mm deep for locking pin ISO 85-3x8-St, material no. R95694, separate order) Name plate Adjustment type "" 3 Adjustment type "3" 4 Space required to remove the key 5 Valve mounting bores 6 Identical seal rings for ports A, B, P, (plate side) Lock nut SW, tightening torque M A = +5 Nm Valve mounting screws (separate order) 4 hexagon socket head cap screws ISO 46 - M5 -.9 Notice! Length and tightening torque of the valve mounting screws must be calculated according to the components mounted under and over the sandwich plate valve. RE 5, edition: -8, Bosch Rexroth AG

8 8/ ZDBY D, ZDBY D Pressure relief valve Device dimensions: Version "B" and "P" (dimensions in mm) 69 3 B 86 8 = = 4 max max 3 46,5,5 F F4 A P G B F F3 4 x Ø5,H3 5,/ Rzmax 4 Required surface quality of the valve contact surface component side Porting pattern according to ISO (with locating hole Ø4 x 4 mm deep) plate side Porting pattern according to ISO (with locating hole Ø3 x 5 mm deep for locking pin ISO 85-3x8-St, material no. R95694, separate order) Name plate Adjustment type "" 3 Adjustment type "3" 4 Space required to remove the key 5 Valve mounting bores 6 Identical seal rings for ports A, B, P, (plate side) Lock nut SW, tightening torque M A = +5 Nm 8 Measuring port (only version "P") Valve mounting screws (separate order) 4 hexagon socket head cap screws ISO 46 - M5 -.9 Notice! Length and tightening torque of the valve mounting screws must be calculated according to the components mounted under and over the sandwich plate valve. Bosch Rexroth AG, RE 5, edition: -8

9 B Pressure relief valve ZDBY D, ZDBY D 9/ Device dimensions: Version "C" and "D" (dimensions in mm) max max x Ø5,H max F F4,5 A P G B F F3 B max ,/ Rzmax 4 Required surface quality of the valve contact surface component side Porting pattern according to ISO (with locating hole Ø4 x 4 mm deep) plate side Porting pattern according to ISO (with locating hole Ø3 x 5 mm deep for locking pin ISO 85-3x8-St, material no. R95694, separate order) Name plate Adjustment type "" 3 Adjustment type "3" 4 Space required to remove the key 5 Valve mounting bores 6 Identical seal rings for ports A, B, P, (plate side) Lock nut SW, tightening torque M A = +5 Nm Valve mounting screws (separate order) 4 hexagon socket head cap screws ISO 46 - M5 -.9 Notice! Length and tightening torque of the valve mounting screws must be calculated according to the components mounted under and over the sandwich plate valve. RE 5, edition: -8, Bosch Rexroth AG

10 / ZDBY D, ZDBY D Pressure relief valve More information Subplates Data sheet 4553 Hydraulic fluids on mineral oil basis Data sheet 9 Reliability characteristics according to EN ISO 3849 Data sheet 8 General product information on hydraulic products Data sheet 8 Assembly, commissioning and maintenance of industrial valves Data sheet 3 Selection of the filters Bosch Rexroth AG Hydraulics Zum Eisengießer 986 Lohr am Main, Germany Phone+49 () 93 5 / 8- documentation@boschrexroth.de his 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. 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. Bosch Rexroth AG, RE 5, edition: -8

11 Pressure relief valve ZDBY D, ZDBY D / Notes Bosch Rexroth AG Hydraulics Zum Eisengießer 986 Lohr am Main, Germany Phone+49 () 93 5 / 8- documentation@boschrexroth.de his 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. 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. RE 5, edition: -8, Bosch Rexroth AG

12 / ZDBY D, ZDBY D Pressure relief valve Notes Bosch Rexroth AG Hydraulics Zum Eisengießer 986 Lohr am Main, Germany Phone+49 () 93 5 / 8- documentation@boschrexroth.de his 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. 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. Bosch Rexroth AG, RE 5, edition: -8