Pump safety block. Type DBA; DBAW. Features. Contents. RE Version: Replaces: 10.05

Transcription

1 ump safety block ype D; DW RE 5880 Version: Replaces: Sizes 3 and 40 Component series 1X Maximum operating pressure 350 bar Maximum flow 50 l/min H Features Contents Depressurized start-up and circulation of the pump o be mounted directly onto the SE pressure port of the pump Quick pressure build-up 4 adjustment types for pressure adjustment, optionally Rotary knob ushing with hexagon and protective cap Lockable rotary knob with scale Rotary knob with scale 5 pressure ratings, optional Solenoid-actuated unloading via a built-on directional valve Integrated check valve, optional Switching shock damping, optional (DW type only) Features 1 Ordering code, 3 Symbols 4 Function, sections 5, echnical data 7, 8 Characteristic curves 8, 9 Unit dimensions ossible pump types 13 Mating connectors 18 General notes 18 More information 18 ype-examination tested safety valves type D E, component series 1X according to ressure Equipment Directive 97/3/EC Ordering code 14 Deviating technical data 15 Safety instructions RE 5880, edition: , osch Rexroth G

2 /18 D; DW ump safety block Ordering code D 1X / * 01 ump safety block D 0 Without directional valve no code With built-on directional valve W 03 Without check valve no code With check valve R 1) 04 Size 3 30 Size Normally closed ) Normally open ) 0 Connection / SE flange 3) Standard flange ( bar) High-pressure flange (350 bar) F H 07 djustment type for pressure adjustment Rotary knob 1 ushing with hexagon and protective cap Lockable rotary knob with scale 3 4) Rotary knob with scale 7 08 With main spool Ø4 mm With main spool Ø8 mm N 09 Component series (10 19: Unchanged installation and connection dimensions) 1X 10 ressure rating Set pressure 50 bar 50 Set pressure 100 bar 100 Set pressure 00 bar 00 Set pressure 50 bar 50 Set pressure 315 bar 315 Set pressure bar (only version "H") ilot flow ilot oil supply and pilot oil return internal (standard) 5) ilot oil supply internal, pilot oil return external Y 1 Standard version no code Valve for minimum cracking pressure (not suitable for mutual relief!) U 1) Only 315 bar ) Ordering code only required if 0 = "W" ) Mating connectors, separate order, see page 18 7) Ordering code only required if 0 = "W" and 13 = "S" 3) lease observe pressure ratings and connection dimensions. (See page 1) 4) H-key with material no. R is included in the scope of delivery. 5) Hyphen " " required only if 0 = "W" and 1 and 13 = "no code" referred types and standard units are contained in the ES (standard price list). osch Rexroth G, RE 5880, edition:

3 ump safety block D; DW 3/18 Ordering code D 1X / * 13 Without switching shock damping no code With switching shock damping (version "W" only) 14 Without directional valve no code With directional spool valve (data sheet 3178) E ) With directional seat valve (data sheet 058) SM ) 15 Direct voltage 4 V G4 ) Direct voltage 05 V G05 ) lternating voltage 30 V 50/0 Hz (version "E" only) W30 ) 1 Without manual override no code With manual override (version "E" only) N ) With concealed manual override (standard) N9 ) 17 Electrical connection Without mating connector with connector DIN EN K4 ; ) 18 Nozzles Ø1. mm in channel of the directional spool valve R1 7) Nozzles Ø1. mm in channel of the directional seat valve 1 7) S 19 Seal material NR seals FKM seals (Other seals upon request) ttention! Observe compatibility of seals with hydraulic fluid used! 0 ype examination Without type examination ype-examination tested safety valve according to ED 97/3/EC no code V no code E 1 Further details in the plain text RE 5880, edition: , osch Rexroth G

4 4/18 D; DW ump safety block Symbols ype D.. ype D Y.. ype DR.. ype DR Y Y Y ype DW ype DW Y 1 1 normally closed normally closed Y normally open normally open ype DWR ype DWR Y 1 1 normally closed normally closed Y normally open normally open osch Rexroth G, RE 5880, edition:

5 ump safety block D; DW 5/18 Function, sections ump safety blocks of types D/DW are pilot operated pressure relief valves which are integrated into a block and intended to be mounted directly onto the SE pressure port of pumps. hey are used for limiting (D) or limiting and magnetically unloading (DW) the operating pressure. ump safety blocks (D) basically consist of a valve block (1), main spool insert (3) and pilot control valve () with adjustment type for pressure adjustment. he valve housing has a port for the hydraulic fluid input and port 1 for the output. In a branch of the through-bore between these two ports there is the main spool insert. When this is open there is a connection to port (tank line). ump safety block type D he pressure applied in the through-bore acts on the main spool (3). t the same time, pressure is applied to the spring-loaded side of the main spool (3) and to the ball (8) in the pilot control valve () via the control lines () and (7) which are equipped with nozzles (4) and (5). If the pressure in the through-bore exceeds the value set at spring (9), ball (8) opens against spring (9). he signal for this is provided internally from the throughbore via control lines (10) and (). he hydraulic fluid on the spring-loaded side of main spool (3) now flows via the control line (7), nozzle bore (11) and ball (8) into the spring chamber (1). From here, it is fed into the tank, either internally for type D via control line (13), or externally for type D Y via control line (14). Nozzles (4) and (5) cause a pressure drop to occur at the main spool (3), hence the connection from channel to channel opens. he hydraulic fluid now flows from channel to channel, whilst the set operating pressure is maintained. ort (15) can be used for remote control purposes. If a pressure load cell or a pressure gauge isolator valve is to be connected here, then version SO1 without nozzle (4) must be ordered. his prevents delays in the build-up of pressure or brief pressure drops when the pressure gauge isolator valve is operated. ump safety block type DR (with check valve) he integrated check valve maintains the system pressure when the pump is disconnected and prevents the hydraulic fluid from returning to the pump. If this valve is selected, no separate check valve is needed. 11 X ype D.R 1 ype D X X X RE 5880, edition: , osch Rexroth G

6 /18 D; DW ump safety block Function, sections, symbols ump safety block type DW... In addition, it can be switched from the pressure limiting function to depressurized circulation by controlling the built-on directional valve (1). hus, a depressurized startup of the pump is possible. 1 () () Representation: Directional valve open 1 ump safety block with switching shock damping (sandwich plate), type DW SE...R1 and type DW SSM...1 he opening of the connection from to 1 or to 1 is delayed by means of the switching shock damping valve (17). ressure peaks and acoustic decompression shocks in the return line can thus be avoided. It is installed between the pilot control valve () and the directional valve (1). he degree of damping (decompression shock) is determined by the size of the nozzle (18). y default, a nozzle Ø1. mm is installed (ordering code..r1.. or..1..). ype DW SE...R1 ype DW SSM osch Rexroth G, RE 5880, edition:

7 ump safety block D; DW 7/18 echnical data (For applications outside these parameters, please consult us!) general Size Size 3 40 Weight ype D kg ype DW kg Check valve "R" kg Switching shock damping "S" kg Installation position ny mbient temperature range ype D (NR seals) (FKM seals) ype DW (NR seals) (FKM seals) Housing materials are to be selected so that there is sufficient safety for all imaginable operating conditions (e.g. with regard to compressive strength, thread stripping strengths and tightening torques). Minimum stability of the housing materials hydraulic Maximum operating pressure ort bar 350 ort bar 315 Cracking pressure (for DR...) bar 0.5 Maximum counter ype D ort Y bar 315 pressure ype DW ort Y, bar 10 for DC solenoids or 10 for C solenoid Minimum set pressure bar Flow-dependent (see characteristic curves page 8 and 9) Maximum set pressure bar 50; 100; 00; 315; 350 Maximum flow ype D/DW l/min ype DR/DWR l/min Hydraulic fluid See table page 8 Hydraulic fluid temperature range C (NR seals) (FKM seals) Viscosity range mm /s Maximum permitted degree of contamination of the hydraulic fluid Class 0/18/15 1) - cleanliness class according to ISO 440 (c) 1) 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 life cycle of the components. For the selection of the filters see echnical data for directional seat valves see data sheet 058, directional spool valves data sheet Deviating technical data for type-examination tested safety valves see page 15. RE 5880, edition: , osch Rexroth G

8 8/18 D; DW ump safety block echnical data (For applications outside these parameters, please consult us!) Hydraulic fluid Classification Suitable sealing materials Standards Mineral oils and related hydrocarbons HL, HL, HLD NR, FKM DIN 5154 io-degradable insoluble in water HEG NR, FKM VDM 458 HEES FKM soluble in water HEG FKM VDM 458 Flame-resistant water-free HFDU, HFDR FKM ISO 19 containing water HFC (Fuchs Hydrotherm 4M, etrofer Ultra Safe 0) NR ISO 19 Important information on hydraulic fluids! For more information and data on the use of other hydraulic fluids refer to data sheet 900 or contact us! here may be limitations regarding the technical valve data (temperature, pressure range, life cycle, maintenance intervals, etc.)! Flame-resistant containing water: Maximum operating pressure 10 bar Maximum hydraulic fluid temperature 0 C Life cycle as compared to operation with mineral oil HL % Characteristic curves (measured with HL4, ϑ oil = 40 ± 5 C) 18 Minimum set pressure and circulation pressure dependent on the flow Standard version Minimum set pressure, circulation pressure in bar Size Flow in l/min Size 40 Notice! he characteristic curves were measured with external, depressurized pilot oil return. With internal pilot oil return, the inlet pressure increases by the output pressure present in port. he characteristic curves apply to the pressure at the valve output p = 0 bar across the entire flow range. osch Rexroth G, RE 5880, edition:

9 ump safety block D; DW 9/18 Characteristic curves (measured with HL4, ϑ oil = 40 ± 5 C) 18 Minimum set pressure and circulation pressure dependent on the flow Version "U" 1 Minimum set pressure, circulation pressure in bar Size Size 40 Flow in l/min Inlet pressure dependent on the flow 400 Input pressure in bar Flow in l/min 1 Size 3 Size 40 Notice! he characteristic curves were measured with external, depressurized pilot oil return. With internal pilot oil return, the inlet pressure increases by the output pressure present in port. he characteristic curves apply to the pressure at the valve output p = 0 bar across the entire flow range. RE 5880, edition: , osch Rexroth G

10 10/18 D; DW ump safety block Unit dimensions: With directional spool valve (dimensions in mm) , , H Y G1/4 0 H1 4 ; H3 35 Z "X" H,7 Z H5 H4 View "X" L1 1 D1 D D3 1 G1/4 1 4 L3 L L ,01/100 Item explanations see page 13. Dimensional tables see page 1. Rz1max 4 Required surface quality of the valve contact surface osch Rexroth G, RE 5880, edition:

11 ump safety block D; DW 11/18 Unit dimensions: With directional seat valve (dimensions in mm) 50, ,01/100 Rz1max Required surface quality of the valve contact surface H H1 Y 1 H , Z 35 "X" 0 Z H5 H4 L1 1 D1 D 1 4 G1/4 4 ; 7 19 H, D3 19 G1/4 1 L3 L L4 5 3 Item explanations see page 13. Dimensional tables see page 1. RE 5880, edition: , osch Rexroth G

12 1/18 D; DW ump safety block Unit dimensions (dimensions in mm) Standard flanges, version "D F" Size L1 L L3 L ) 1) H1 H H3 H4 H5 H 1) ØD1 ØD ØD Standard flanges, version "DR..F" Size L1 L L3 L ) 1) H1 H H3 H4 H5 H 1) ØD1 ØD ØD Size Version Connections 4 valve mounting screws ISO ) ightening torque and 1 Material no. M in Nm 3) 3 "D" M10 x 10 R SE 1 1/4" G1 1/4 "DR" M10 x 15 R "D" M1 x 135 R SE 1 1/" G1 1/ "DR" M1 x 140 R dmissible pressures (flange connections according to ISO 1-1) in bar SE 1 1/4" 50 SE 1 1/" 00 High-pressure flanges, version "D H" Size L1 L L3 L ) 1) H1 H H3 H4 H5 H 1) ØD1 ØD ØD High-pressure flanges, version "DR..H" Size L1 L L3 L ) 1) H1 H H3 H4 H5 H 1) ØD1 ØD ØD Size Version Connections 4 valve mounting screws ISO ) ightening torque and 1 Material no. M in Nm 3) 3 "D" M14 x 135 R SE 1 1/4" G1 1/4 "DR" M14 x 145 R "D" M1 x 155 R SE 1 1/" G1 1/ "DR" M1 x 10 R dmissible pressures (flange connections according to ISO 1-1) in bar SE 1 1/4" 350 SE 1 1/" 350 1) Only for version with check valve "R" ) Valve mounting screws (separate order) 4 hexagon socket head cap screws ISO flZn-40h-L (for friction coefficient µ total = ) ttention! For reasons of stability, other valve mounting screws must not be used! 3) he tightening torques are guidelines when using screws with the specified friction coefficients and when using a manual torque wrench (tolerance ±10 %). osch Rexroth G, RE 5880, edition:

13 ump safety block D; DW 13/18 Unit dimensions 1 Name plate Omitted with internal pilot oil return 3 Y port for pilot oil return, external 4 djustment type "1" 5 djustment type "" djustment type "3" 7 djustment type "7" 8 Hexagon wrench size 10 9 Switching shock damping sandwich plate, optional 10 Space required to remove the key 11 Space required to remove the mating connector 1 Valve mounting bore 13.1 Directional spool valve size (data sheet 3178) 13. Directional seat valve size (data sheet 058) 14 Solenoid "a" 15 Manual override, optional 1 Mating connector without circuitry, separate order, see page Mating connector with circuitry, separate order, see page Seal ring 19 Integrated check valve, version "R" 0 Dimension for valve without manual override 1 Dimension for valve with concealed manual override "N9" Dimension for valve with manual override "N" 3 Space required to remove the coil 4 Lock nut, wrench size 17, tightening torque M = Nm ossible pumps (selection) ump ype Component series/series Data sheet Internal gear pump GH 3X 107 GH X 103 Displacement pump FO Series Industrial-type variable displacement 4VSO Series pump 4VG Series Variable displacement pump 7VO Series VO Series VSO Series VSO Series Notice! Ensure that the connection dimensions are appropriate when selecting the pump, see page 10 1! RE 5880, edition: , osch Rexroth G

14 14/18 D; DW ump safety block Ordering code: ype-examination tested safety valves type D E, component series 1X according to ressure Equipment Directive 97/3/EC Maximum flow q Vmax in l/min with pilot oil return Size ype designation Component marking External "Y" Internal " " D 30 N1X/ E DR 30 N1X/ E 3 ÜV.SV F.G.p DW 30 N1X/ * E DWR 30 N1X/ * E D 40 N1X/ E DR 40 N1X/ E 40 ÜV.SV F.G.p DW 40 N1X/ * E DWR 40 N1X/ * E Set response overpressure p in bar Directional valve, normally closed Directional valve, normally open Standard flange F High-pressure flange H 3 djustment type Hand wheel (pressure adjustment sealed, unloading or setting of a lower response pressure possible!) 1 With sealed protective cap (no adjustment/unloading possible) 4 ressure in the designation is to be entered by the customer, pressure adjustment 30 bar and possible in 5 bar steps. e. g ilot oil supply and return Internal Recommendation: Internal pilot oil supply, external pilot oil return (ordering code according to symbols page 4) 1) Y * Electrical data ordering code (see page 3) e. g. EG4N9K4 NR seals no code FKM seals V Value entered at factory 1X 1) Hyphen " " required only if 0 = "W" and 1 and 13 = "no code" (see pages and 3) osch Rexroth G, RE 5880, edition:

15 ump safety block D; DW 15/18 Deviating technical data: ype-examination tested safety valves type D E, component series 1X according to ressure Equipment Directive 97/3/EC 1) hydraulic Maximum counter pressures ort Y bar 0 ort bar 10 Maximum flow See table page 14 and characteristic curves page 1 and 17 Hydraulic fluid Mineral oil (HL, HL) according to DIN 5154 Hydraulic fluid temperature range C 0 +0 (NR seals) (FKM seals) Viscosity range mm /s ) For applications outside these parameters, please consult us! Safety instructions: ype-examination tested safety valves type D E, component series 1X according to ressure Equipment Directive 97/3/EC efore ordering a type-examination tested safety valve, it must be ensured that at the desired response pressure p, the maximum admissible flow q V max (= numerical value at the position of letter "G" in the component marking) of the safety valve is higher than the maximum possible flow of the system/accumulator to be secured. In this, the corresponding regulations have to be observed! ccording to ED 97/3/EC, the increase in system pressure caused by the flow must not exceed 10 % of the set response pressure (see component marking). he maximum admissible flow q V max specified in the component marking must not be exceeded. Discharge lines of safety valves must end in a risk-free manner. he accumulation of fluids in the discharge lines must not be possible (see D000 - data sheet ). It is imperative to observe the application notes! In the plant, the response pressure specified in the component marking is set with a flow of l/min. he maximum admissible flow specified in the component marking applies to: External pilot oil return "Y" without counter pressure in the pilot oil return line, admissible counter pressure in the discharge line (port ) < 15 bar. Internal pilot oil return " " without counter pressure in the discharge line (port ) With internal pilot oil return, the system pressure increases by the counter pressure in the discharge line (port ) due to the increasing flow (observe D000 - data sheet;, item.3). o ensure that this increase in system pressure caused by the volume flow does not exceed the value of 10 % of the set response pressure, the admissible volume flow has to be reduced dependent on the counter pressure in the discharge line (port ), see characteristic curves pages 1 and 17). If a lead seal at the safety valve is removed, the approval according to the ressure Equipment Directive becomes void. asically, the requirements of the pressure equipment directives and of data sheet D000 have to be observed! RE 5880, edition: , osch Rexroth G

16 1/18 D; DW ump safety block Safety instructions: ype-examination tested safety valves type D E, component series 1X according to ressure Equipment Directive 97/3/EC Maximum admissible flow q V max dependent on the counter pressure p in the discharge line with internal pilot oil return ype D 30-1X/ E p in bar p in bar Characteristic curves Response pressure p in bar , ,5 11, Characteristic curves for intermediate values can be generated by interpolation. Further explanations see page 17. Flow in l/min osch Rexroth G, RE 5880, edition:

17 ump safety block D; DW 17/18 Safety instructions: ype-examination tested safety valves type D E, component series 1X according to ressure Equipment Directive 97/3/EC Maximum admissible flow q V max dependent on the counter pressure p in the discharge line with internal pilot oil return ype D 40-1X/ E p in bar p in bar Characteristic curves Response pressure p in bar , , 11,5 11, Characteristic curves for intermediate values can be generated by interpolation. Further explanations see below Flow in l/min p = p = q V max = p max = Response pressure in bar Maximum admissible counter pressure in bar (sum of all possible tank pressures; see also D000 - data sheet ) Maximum admissible flow in l/min 10 % x p (for q V = 0) according to ED 97/3/EC Explanation of the diagrams (Example: ype D E, above): known: Flow of the system/accumulator that has to be secured q V max = 30 l/min Set response pressure of the safety valve p = 350 bar unknown: p admissible Solution: See arrows in diagram above p admissible (30 l/min; 350 bar) = 1. bar RE 5880, edition: , osch Rexroth G

18 18/18 D; DW ump safety block Mating connectors according to DIN EN For details and more mating connectors see data sheet 0800 Material no. Color Without circuitry With indicator light V With rectifier V With indicator light and Zener diode suppression circuit 4 V Gray R lack R R R R General notes: he unloading function (directional valve function with version "W") must not be used for safety functions! With version "", the lowest adjustable pressure (circulation pressure) is set in case of power failure or cable break. With version "", the pressure limiting function is set in case of power failure or cable break. Hydraulic counter pressures in port with internal pilot oil return and/or port Y with external pilot oil return add 1:1 to the response pressure of the valve set at the pilot control. Example: ressure adjustment of the valve by spring preload (item 9 on page 5) in the pilot control valve/adjustment type p spring = 00 bar Hydraulic counter pressure in port with internal pilot oil return p hydraulic = 50 bar => Response pressure = p spring + p hydraulic = 50 bar More information Directional spool valve Data sheet 3178 Directional seat valve Data sheet 058 Hydraulic fluids on mineral oil basis Data sheet 900 General product information on hydraulic products Data sheet Installation, commissioning and maintenance of industrial valves Data sheet Selection of the filters osch Rexroth G Hydraulics Zum Eisengießer Lohr am Main, Germany hone +49 (0) 93 5 / 18-0 documentation@boschrexroth.de ous droits réservés par osch Rexroth G, y compris en cas de dépôt d une demande de droit de propriété industrielle. out pouvoir de disposition, tel que droit de reproduction et de transfert, détenu par osch Rexroth. 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. osch Rexroth G, RE 5880, edition:

19 ump safety block D; DW 19/18 Notes osch Rexroth G Hydraulics Zum Eisengießer Lohr am Main, Germany hone +49 (0) 93 5 / 18-0 documentation@boschrexroth.de ous droits réservés par osch Rexroth G, y compris en cas de dépôt d une demande de droit de propriété industrielle. out pouvoir de disposition, tel que droit de reproduction et de transfert, détenu par osch Rexroth. 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 5880, edition: , osch Rexroth G

20 0/18 D; DW ump safety block Notes osch Rexroth G Hydraulics Zum Eisengießer Lohr am Main, Germany hone +49 (0) 93 5 / 18-0 documentation@boschrexroth.de ous droits réservés par osch Rexroth G, y compris en cas de dépôt d une demande de droit de propriété industrielle. out pouvoir de disposition, tel que droit de reproduction et de transfert, détenu par osch Rexroth. 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. osch Rexroth G, RE 5880, edition: