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Pressure relief valve
Pressure relief valve Pressure relief valve

GENERAL SPECIFICATIONS HYDRAULIC SPECIFICATIONS DIMENSIONS
Designation Pressure relief valve Key adjustment «S» Control knob adjustment «D»
Construction Pilot operated Working pressure p = 400 bar 17 27
max
= 210 bar
Mounting Screw-in cartridge construction Tank pressure p p = 63; 160; 350 bar s4
T max
Nominal pressure
Nominal size M22 x 1,5 according to ISO 7789 range N
Actuation Manually Minimum pressure See characteristics 30
Ambient temperature -25…+90 °C Volume flow range Q = 0,2…100 l/min 40
Weight 0,17 kg key adjustment Leakage oil See characteristics s13 20
0,26 kg control knob adjustment 47.9
0,21 kg cover Fluid Mineral oil, other fluid on request 40.4
2
2
MTTFd 150 years Viscosity range 12 mm /s…320 mm /s s27
Temperature range -25…+90 °C (NBR) 86.7
fluid -20…+90 °C (FKM) 79.2 Ø30
Contamination Class 18 / 16 / 13 M22x1.5
efficiency 50
Filtration Required filtration grade ß 6…10 ≥ 75, 38.8 Star handle «G»
see data sheet 1.0-50 2(T)
PERFORMANCE SPECIFICATIONS 60 40
Oil viscosity u = 30 mm /s
2
p = f (Q) Pressure volume flow characteristics p = f (Q) Pressure volume flow characteristics 1(P) 70
Maximal adjustable pressure Minimal adjustable pressure
p [bar] p [bar] Cover «A»
400 K0669 P N = 350 bar 40 K0670 23
P N = 160/350 bar 55.9 26
300 30
200 P N = 160 bar 20 P N = 63 bar
100 P N = 63 bar 10 94.7

0 0 25
0 25 50 75 100 Q [l/min] 0 25 50 75 100 Q [l/min] 48

p = f (n) Pressure adjustment characteristics Q = f (p) Leakage volume flow characteristics
L
Measured at Q = 5 l/min P (1) → T (2) 86.8 ACCESSORIES
p [bar] Q [cm /min] Types of adjustment for screw-in Data sheet 2.0-50
3
400 K0113 200 K0114 cartridges
P N = 350 bar
300 150 Technical explanations Data sheet 1.0-100
Filtration Data sheet 1.0-50
200 100
P N = 160 bar HYDRAULIC CONNECTION PARTS LIST

100 P N = 63 bar 50 Cavity drawing according to ISO 7789–22–02–0–98
0 0 Position Article Description
0 1 2 3 4 5 n [-] 0 50 100 150 200 250 300 350 p [bar] M22x1.5 20 114.2228 Control knob K9
25 032.0616 Cover rd 23 / 3 x 35 K9
26 082.2004 Star handle rd 40 x 26
SEALING MATERIAL SURFACE TREATMENT (2) 30 193.1062 Retainer rd 6 DIN 6799
NBR or FKM (Viton) as standard, choice in the type code ◆ The cartridge body and the control knob are made of stainless 40 154.7407 Hexagon nut M8 x 1 x 4
steel (1) 50 160.2188 O-ring ID 18,77 x 1,78 (NBR)
160.6188 O-ring ID 18,77 x 1,78 (FKM)
STANDARDS INSTALLATION NOTES (1) 60 160.2140 O-ring ID 14,00 x 1,78 (NBR)
160.6141 O-ring ID 14,00 x 1,78 (FKM)
Cartridge cavity ISO 7789 Mounting type Screw-in cartridge M22 x 1,5 70 049.8177 Back-up ring PTSM rd 12,4 x 15,3 x 1,4
Contamination ISO 4406 Mounting position Any, preferably horizontal Note! For detailed cavity drawing and cavity tools see data
efficiency Tightening torque M = 60 Nm Screw-in cartridge sheet 2.13-1003
D
Wandfluh AG Postfach CH-3714 Frutigen
Tel. +41 33 672 72 72 Fax +41 33 672 72 12 sales@wandfluh.com

www.wandfluh.com Illustrations are not binding Data subject to change 2/3 Edition: 19 05 2.1-530S E www.wandfluh.com Illustrations are not binding Data subject to change 3/3 Edition: 19 05 2.1-530S E
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