1/12 RE 25 860/11.11 Replaces: RE 25 860/10.10 Pressure relief valves
Pressure relief valves
0 532 . . . R 917 . . .
Valves for line connections Valves for block installation pmax = 350 bar Qmax = 120 l/min
Contents
Page
Features
Function
2
– Type of connection for pipeline installation and block installation
Technical data
2
– Adjustment methods such as hand wheel, lead-seal capable, fixed, hand wheel with scale (with and without lock)
Valves for line installation
3
Device dimensions
5
Application
Valves for block installation
7
Device dimensions
9
In conveying and handling equipment, agricultural engineering, in municipal-vehicles and in general mechanical engineering.
Curves
11
Note The versions “Safety valves TÜV German Technical Inspection Agency model approved” in accordance with the Pressure Equipment Directive 97/23/EG are used to safeguard hydraulic accumulators, see technical data sheet RDEF 50 153.
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Bosch Rexroth AG | Hydraulics
Pressure relief valves | RE 25 860/11.11
Function This model series is based on a valve in seat design with damping piston. The punched valve seat serves to ensure high density, the damping piston prevents any valve vibration. It produces a flat control characteristic, i.e., even at an increasing flow rate the set opening pressure is for the most part maintained. This is achieved by the effect of the flow forces on the valve disk, whereby the valve continues to open as the flow rate increases.
T
T
Versatile version variants are available: – Housing for pipeline installation with and without measuring connection. – Valve cartridges for block installation. – Various adjustment methods such as hand wheel, lead-seal capable, fixed, hand wheel with scale (with and without lock). – Check valve before damping piston for fast response times.
T
P
T
T
P
T
P
Stroke limiter
T
T
T
T
T
T
Valve disk Valve seat Dampingpiston P P
P Nonreturn valve
Technical data Design Line connections Installation position Ambient temperature Pressure medium
Seat valve with damping for pipeline installation and block installation Optional –30...+80 °C Hydraulic oils based on mineral oil acc. to DIN/ISO, other, e.g. environmentally-compatible fluids available on request Viscosity 10...800 mm2/s permissible range 20...100 mm2/s recommended range ...2000 mm2/s for start permissible range Pressure medium temperature –30 °C...+80 °C with NBR sealings, NBR = Perbunan® –15 °C...+120 °C with FKM sealings, FKM = Viton® Filtration Oil contamination Class 19/16 in accordance with ISO/DIS 4406, or Class 10 in accordance with NAS 1638 to be achieved using filter β25 = 75 Direction of flow rate shown by symbol or marking Operating pressure For line installation P: max. permissible 350 bar, depending on number of load changes and temperature. Counter values on request. T: max. permissible 210 bar (NBR) or 80 bar (FKM), depending on number of load changes and temperature. Counter values on request. Betriebsdruck For block installation P: In accordance with set pressure. T: NBR max. 210 bar, FM max. 80 bar MTTFd: max. 150 years, PRV with set value > 210 bar: B10 value on request Cracking pressure (tolerance pnom +5 %) Set at flow 0.1 l/min Leakage oil flow Flow
Max. 1 cm3/min Max. 120 l/min, depending on set pressure and line Ø, see chapter “Characteristics”
RE 25 860/11.11 | Pressure relief valves
Hydraulics | Bosch Rexroth AG
3/12
Pressure relief valves for line installation
Threaded port
Version
Seals
M 18 x 1,5
Fixed
NBR FKM NBR
Fixed, with nonreturn valve Fixed
Set Weight pressure * [kg] [bar] 10 0.9 10 12 15 20 25 30 40 50 60 70 80 90 100 110 140 140 150 150 170 180 190 200 210 210 210 230 250 300
NBR = Perbunan®, FKM = Viton® ** pnom +5 % at Q = 0.1 l/min, with back flow unloaded ** Pressure relief valve zinc-plated and transparent-passivated, special options upon request
Material No.
0 532 001 031 0 532 001 115 0 532 001 156 0 532 001 004 0 532 001 012 0 532 001 011 0 532 001 014 0 532 001 027 0 532 001 020 0 532 001 018 0 532 001 005 0 532 001 006 0 532 001 026 0 532 001 007 0 532 001 024 0 532 001 008 R 917 002 956 ** R 917 002 975 ** 0 532 001 009 0 532 001 028 0 532 001 022 0 532 001 021 0 532 001 023 0 532 001 013 0 532 001 154 R 917 002 960 ** 0 532 001 019 0 532 001 016 0 532 001 030
4/12
Bosch Rexroth AG | Hydraulics
Pressure relief valves | RE 25 860/11.11
Threaded port
Version
Seals
G1/2 ISO 228
Fixed, with nonreturn valve
NBR
M 18 x 1.5
Adjustable
NBR
FKM NBR
G1/2 ISO 228 G1/2 ISO 228 M 18 x 1.5
G1/2 ISO 228 M 18 x 1.5
NBR Fixed, with nonreturn valve Adjustable, long adjusting shaft Adjustable
Adjustable
NBR
Set Weight pressure * [kg] [bar] 320 0.9
Material No.
10...15 1.0 15...50 15...50 7...67 40...100 40...100 50...300 50...300 50...300 50...350 70...180 70...180 100...250 100...250 50...300 50...350 1...10 1.2 1...35 15...80 15...150 30...200 30...200 50...250 50...300 50...300 0...250 1.2
0 532 002 010 R 917 002 939 ** 0 532 002 005 0 532 002 052 R 917 002 936 ** 0 532 002 003 R 917 002 938 ** 0 532 002 007 0 532 002 020 0 532 002 064 R 917 002 937 ** 0 532 002 001 0 532 002 004 R 917 002 932 ** 0 532 002 044 0 532 002 059 0 532 003 014 0 532 003 035 0 532 003 016 0 532 003 001 0 532 003 003 R 917 005 060 ** 0 532 003 002 0 532 003 009 0 532 003 034 0 532 008 002
NBR = Perbunan®, FKM = Viton® ** pnom +5 % at Q = 0.1 l/min, with back flow unloaded ** Pressure relief valve zinc-plated and transparent-passivated, special options upon request
0 532 001 131
RE 25 860/11.11 | Pressure relief valves
Hydraulics | Bosch Rexroth AG
Device dimensions Fixed
T
T
T
T
= 70+30 Nm 30
Stroke limiter to pmax. = 110 bar
P
29.5 T
T
37.5
T
100
T
92.5
Ø36 (2x)
60
P
G1/4 Measuring connection P
Nonreturn valve
6
43
P Ø36
Adjustment range Ø63 Adjustable
T 13
T
Ø31 43
P = 24+6 Nm
=
= 70+30 Nm
47,5
19
19
70+30 Nm
M26x1.5
140
max. 163
24
T
T
P
T
T
P
5/12
6/12
Bosch Rexroth AG | Hydraulics
Pressure relief valves | RE 25 860/11.11
= 70+30 Nm 32
Key For locking pressure setting
T
0
11 9 7 5 3 1
P
2 1
10 8 6 4 2 0
P
T
T
63
7 9 8
H
193 216.6
BKS
Ø36
Ø45
6
6 5
92.5
43
60 Ø36
9 8
T
Ø2
21
10 8 6 4 2 0
11 9
Device dimensions (Continued)
RE 25 860/11.11 | Pressure relief valves
Hydraulics | Bosch Rexroth AG
7/12
Pressure relief valves for block installation
Threaded port
Version
Seals
M 30 x 1.5
Fixed Fixed, with nonreturn valve Fixed
FKM NBR
Fixed, with nonreturn valve Fixed
FKM NBR HNBR NBR
FKM NBR Fixed, with nonreturn valve NBR = Perbunan®, FKM = Viton®, HNBR = Therban® ** pnom +5 % at Q = 0.1 l/min, with back flow unloaded
Set Weight pressure * [kg] [bar] 5 0.2 6 12 15 25 30 50 60 70 80 90 120 130 150 160 170 170 180 190 200 210 220 230 250 260 280 280 300 320 330
Material No.
0 532 001 148 0 532 001 171 0 532 001 060 0 532 001 055 0 532 001 039 0 532 001 113 0 532 001 059 0 532 001 142 0 532 001 127 0 532 001 032 0 532 001 036 0 532 001 048 0 532 001 057 0 532 001 041 0 532 001 029 0 532 001 147 0 532 001 040 0 532 001 050 0 532 001 037 0 532 001 052 0 532 001 176 0 532 001 058 R 917 006 555 0 532 001 051 0 532 001 167 0 532 001 061 0 532 001 172 0 532 001 043 0 532 001 145 0 532 001 173
8/12
Bosch Rexroth AG | Hydraulics
Pressure relief valves | RE 25 860/11.11
Threaded port
Version
Seals
M 30 x 1.5
Fixed
NBR
M 30 x 1.5
Adjustable Adj., return loadable up to 330 bar Adjustable, preset to 35+2 bar
NBR FKM NBR
Adjustable
Adjustable, with nonreturn valve Adjustable Adjustable, with nonreturn valve Adjustable Adjustable, with nonreturn valve Adjustable Adjustable, preset to 190+10 bar Adjustable
FKM NBR FKM NBR FKM
Set Weight pressure * [kg] [bar] 185 0.2 350
Material No.
1...10 0.3 1...15 5...35 5...35 7...67 10...15 15...50 40...100 40...200 50...300 50...350 50...350 50...380 70...180 70...180 100...250 100...250 100...320 1...10 0.4 1...35 15...150 40...280
0 532 002 068 0 532 002 048 0 532 002 065 0 532 002 062 0 532 002 042 0 532 002 011 0 532 002 012 0 532 002 015 0 532 002 051 0 532 002 014 0 532 002 050 0 532 002 046 0 532 002 058 0 532 002 002 0 532 002 016 0 532 002 013 0 532 002 019 0 532 002 041 0 532 003 012 0 532 003 037 0 532 003 011 0 532 003 033
0 532 001 170 0 532 001 139
M 30 x 1.5
Adjustable, long adjusting shaft Adjustable
NBR
M 30 x 1.5
Adjustable
NBR
50...315
0.5
0 532 008 001
M 26 x 1.5
Fixed, Valve carrier for screwing-in M 24 x 1.5 See device dimensions Page 10 bottom
NBR
30 40 110 175 200
0.2
0 532 001 813 0 532 001 806 0 532 001 812 0 532 001 805 0 532 001 804
NBR = Perbunan®, FKM = Viton® * pnom +5 % at Q = 0.1 l/min, with back flow unloaded
RE 25 860/11.11 | Pressure relief valves
Hydraulics | Bosch Rexroth AG
9/12
Device dimensions All sealing rings included loose With nonreturn valve
28.5 T
17.7
Ø17.5
48.2 T
P
Ø14
T P
P
P
T
T
= 70+30 Nm T
T
T
1
24
8.5 = 70+30 Nm
80.5
120.2
30 Stroke limiter to pmax. = 110 bar
143.5 max 71.5 max
T
= 70+30 Nm
64
Ø63
T
P
22
P
T P T
T
T
= 70+30 Nm
14
86
19 189.5 max 117.5 max Adjustment range 13
T
64
P
Ø63
T
P
1
T
T
= 24+6 Nm Maximal pressure limit (can be lead sealed) 19
M26x1.5
30
192 120 98
T
= 70+30 Nm 32
Ø44
7 6 5 4 3
T
P
= 70+30 Nm
Locating bore See Page 10 top
10/12
Bosch Rexroth AG | Hydraulics
Pressure relief valves | RE 25 860/11.11
Device dimensions 0.1 A
43.5+0.3 Rz 16
min. 30
in this area Ø28+0.15 permissible
25 27
P
120∞
M30x1.5
Rz 16
Ø20H13
Ø28F8 1)
A
Ø30.5+0.3
0.1 A
T
1) Return pressure < 80 bar > 80 bar Ø28 Ø28 +0.053 F11( +0.150 +0.020 ) F8 ( +0.020 )
T Ø16 max. 31.5+0.3
3+0.5 Thread runout
Valve carrier for screwing-in T
T 0.1 A
40.5
1)
Recommendation: Glue in thread, e.g. using Loctite 243 Ø18H13 M24x1.5
Metallic sealing surface
P
This pressure relief valve for block installation with M 26 x 1.5 internal thread is designed for particularly small installation areas. The hydraulic parameters are identical with those for M 30 x 1.5 internal thread. The exact pressure setting must ultimately be made by the customer.
Thread
A min. 15
R0.2
B
0.1 B
15
65+10 Nm 1)
Ø28.2+0.1
min. 28
T
2∞
M26x1.5
82.1
T
min. 29.4
32.2+0.2
24 22.8
Ø31
0.1 A
= 65+10 Nm
30∞
Ø10H13
3.4+0.2
P
0.1 A
90∞
RE 25 860/11.11 | Pressure relief valves
Hydraulics | Bosch Rexroth AG
Curves For lower setting limits
45 40 35
P [bar]
30 25 20 max. permissible flow
15 10 5 0 0
10
20
30 40 50 Q [l/min]
60
70 80
For higher setting limits 400 350 300 250 P [bar]
v 35 mm2/s, T = 50 °C Exceeding the boundaries of application will cause a disproportionate increase in pressure, and even to the functional limit of the PRV.
200 150 100 50 0 0
max. permissible flow 20
40
60
80
Q [l/min]
100 120 140
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Bosch Rexroth AG | Hydraulics
Pressure relief valves | RE 25 860/11.11
Further notes Special models for line installation with fatigue strength up to 350 bar on request. For proper use, please observe the following additional data sheets: – Hydraulic valves for mobile applications: general information RE 64 020-B1 – Pressure relief valves: product-specific instructions RE 25 860-B2 – Pressure relief valves: repair instructions RDE 25 860-R
Information regarding the correct handling of Bosch Rexroth hydraulic products is available in our publication: “General Product Information for Hydraulic Products” RE 07 008.
Bosch Rexroth AG Hydraulics Product Segment Mobile Controls Robert-Bosch-Straße 2 D-71701 Schwieberdingen Fax +49 (0) 711-811 5 11 18 14
[email protected] www.boschrexroth.com/brm
© This 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. 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.
