Page 816 - Softbound_Edition_19_en

Pressure relief valve

Pressure relief cartridge stainless
◆ pilot operated M22 x 1,5
◆ p = 400 bar ISO 7789
max
◆ p N max = 350 bar
◆ Q = 100 l/min
max

DESCRIPTION APPLICATION
Pilot operated pressure relief valve in screw-in cartridge construc- These valves are used for limiting the operating pressure in the
tion for cavity according to ISO 7789. High flow capacity, very hydraulic system or for protection against pressure peaks. Can be
sensitively adjustable. If the pressure in P (1) exceeds the adjusted used in double pressure relief switches. For machining the cart-
value of the valve, the excessive pressure is drained to T (2). Rapid ridge cavity in steel and aluminum blocks, cavity tools are available
switching with low hysteresis and excellent stability over the who- (hire or purchase). Please refer to the data sheets in register 2.13.
le flow range. The small clearance of the hardened spool ensures a
low leakage volume flow. The stainless execution is especially Attention! As of design index #2, applications with periodically
changing flow direction are admitted.
suitable for the use in wet and salty environment.

SYMBOL ACTUATION
Actuation Adjustment spindle M8 x 1
T (2)
Execution S = blockable key adjustment
D = blockable knob adjustment
Optionally:
G = star handle adjustment
P (1)
Actuation angle a = 1800 ° (5 rotations)
b
Actuation stroke S = 5 mm
b

TYPE CODE
B V PM22 - - K9 # 2
Pressure relief valve

Pilot operated
Type of adjustment Key S
Control knob D
Cover A
Screw-in cartridge M22 x 1,5

Nominal pressure range p N 63 bar 63
160 bar 160
350 bar 350

Sealing material NBR
FKM (Viton) D1
NBR 872 y-Z604

Stainless
Design index (subject to change)
2.1-530S

www.wandfluh.com Illustrations are not binding Data subject to change 1/3 Edition: 19 05 2.1-530S E