Page 823 - Softbound_Edition_19_en

Pressure relief valve
Pressure relief valves Pressure relief valves

2
CHARACTERISTICS Oil viscosity υ = 30 mm /s Vented relief valve
p = f (Q) Pressure volume flow characteristics P(1) Screw-in cartridge
P [ % ] • Pilot operated M22x1,5
P A 1 2
125 K0924 • Q = 80 l/min ISO 7789
100 1 Response pressure: Response pressure in accordance with type • p max = 400 bar
code. max
75 2 Blow-off pressure: The blow-off pressure is situated a maximum • p = 350 bar
T(2)
3 N max
50 of 10 % above the response pressure.
3 Closing pressure: The closing pressure is situated a maximum DESCRIPTION FUNCTION APPLICATION
25 of 15 % below the response pressure. Spool type pilot operated relief valve, vented. If the operating pressure exceeds a set value, To limit the operating pressure in hydraulic
0 Thread M22x1,5 and cavity in accordance with the pilot part opens. A control fluid then starts systems. The valve function can be remote
0 5 10 15 20 25 30 Q [l/min] ISO 7789. The valve is available in 2 different to flow and relieves the back of the spool in the controlled via connection x. When relieving/
setting versions: Key setting «S» and turning direction of the tank. The pressure difference opening control pipe x (3), the circuit is more
ca.10 knob setting «D». Key adjustment «S» is also generated displaces the spool towards the or less unpressurised. The screw in cartridge
available with cover, see data sheet 2.0-50. spring and the valve opens the closed pipe to is very suitable for installing in control blocks.
Q = f (p) Leakage volume flow characteristics Three standard pressure levels are available: the tank. When the excess pressure has been Cavity tools are available for hire or sale for
L
[P (1) → T (2)] 63, 160 and 350 bar.The steel cartridge body reduced, the pilot control interrupts the flow machining aluminium and steel. Please refer
Q [cm /min] 46,8 and adjustment spindle are galvanised to pro- of control fluid and the pressures at the spool to data sheet 2.13. Attention: Should therefore
3
not be utilized anymore in applications with
tect them from corrosion. The quality of this
are equilibrated. The spring displaces the
200 K0114 product is reflected in the good performance spool and the valve closes. If the control pipe periodically changing direction of flow.
s27
150 Ø30 20 data and the relevant design. x is switched to unpressurised by an external
valve, the pressure shut off valve switches to
M 22x1,5 an unpressurised circuit.
100
P(1)
50 38,5 30
2(T) TYPE CODE
0

0 50 100 150 200 250 300 350 p [bar] 10 B V PM22 - - Z9 #
1(P) Pressure relief valve
T(2)
Pilot operated
Type of adjustment Key S
DIMENSIONS Control knob D
Cover A (see data sheet 2.0-50)
Cavity drawing to
ISO 7789–22–02–0–98 Screw-in cartridge M22x1,5
63
63 bar
ca.10 M22x1,5 Pressure range p N 160 bar 160

350 bar 350
Additional description
46,8 min Ø 6mm Design-Index (Subject to change)
s27 T (2)
Ø30
20 min Ø 6mm GENERAL SPECIFICATIONS HYDRAULIC SPECIFICATIONS
M 22x1,5
P (1) Description Pilot operated relief valve, vented Fluid Mineral oil, other fluid on request
38,5 30 Construction Screw-in cartridge to ISO 7789 Contamination efficiency ISO 4406:1999, class 18/16/13

Mounting
(Required filtration grade ß 6…10≥75)
Screw-in thread M22x1,5
2(T) to ISO 7789 refer to data sheet 1.0-50/2
Ambient temperature -20…+50 °C Viscosity range 12 mm /s…320 mm /s
2
2
10 Detailed cavity drawing and cavity tools
1(P) Mounting position any Peak pressure p = 400 bar
see data sheet 2.13-1003. max
Fastening torque M = 50 Nm p Tmax = p +20 bar
P
D
Weight m = 0,21 kg Fluid temperature -20…+70 °C
m = 0,22 kg (control knob) Nominal pressure p = 63 bar, p = 160 bar p = 350 bar,
N
N
N
Volume flow Q = 0,5…80 l/min
Minimal pressure see curve
PARTS LIST ACCESSORIES Leakage volume flow see data sheet 2.1-530
Cartridge built into flange- or sandwich body:
Position Article Description Flange valve register 2.1 SYMBOL CONTROL MECHANICAL
M22x1,5 Sandwich valve register 2.1
10 160.2140 O-ring ID 14,00x1,78 Mechanical types of operation in 2 different versions:
S
= Screw adjustment
20 160.2188 O-ring ID 18,77x1,78 – The operating instructions incl. the EU declaration of conformity is P (1) with fork wrench and Allen key
30 049.3177 Back-up ring RD 14,6x17,5x1,4 supplied in German, English and French D = Control knob adjustment, fixed
min Ø 6mm (download under www.wandfluh.com) Stroke S = 5 mm
b
x (3) Angle α = 1800° (5 Turns)
T (2) b
min Ø 6mm T (2)
P (1) Technical explanation see data sheet 1.0-100E
ø 26
Wandfluh AG Tel. +41 33 672 72 72 E-mail: sales@wandfluh.com Illustrations not obligatory Data sheet no. Wandfluh AG Ø 17 Tel. +41 33 672 72 72 E-mail: sales@wandfluh.com M22 x 1,5 Data sheet no.
Illustrations not obligatory
20
30
Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 2.1-532E 2/2 Postfach s4 Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 2.1-534E 1/2
CH-3714 Frutigen Edition 21 18 CH-3714 Frutigen Edition 10 33
40 Page 823
s13
54,6 (3) X
47,1
s27
ø30 (2) T
50
M22x1,5
60
x(3) (1) P
54 70
T(2)
65 (1) P
P(1) 75