Page 847 - Softbound_Edition_19_en

BV.PM33
Pressure relief valve

Pressure relief cartridge
◆ pilot operated M33 x 2
◆ p = 400 bar ISO 7789
max
◆ p N max = 350 bar
◆ Q = 230 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 hy-
tion for cavity according to ISO 7789. High flow capacity, very sen- draulic system. The screw-in cartridge is perfectly suitable for instal-
sitively adjustable. If the pressure in P (1) exceeds the adjusted lation in control blocks. For machining the cartridge cavity in steel
value of the valve, the excessive pressure is drained to T (2). Rapid and aluminum blocks, cavity tools are available (hire or purchase).

switching with low hysteresis and excellent stability over the who- 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. Attention! Not to be used in applications with periodically
changing flow direction.

SYMBOL ACTUATION
Actuation Adjustment spindle M8 x 1
T (2)
Execution S = blockable key adjustment
D = blockable knob adjustment
Optionally:
K = lockable adjustment
P (1)
G = star handle adjustment
→ see Data sheet 2.0-50
Actuation angle a = 1800 ° (5 rotations)
b
Actuation stroke S = 5 mm
b

TYPE CODE
B V PM33 - - #
Pressure relief valve

Pilot operated
Type of adjustment Key S
Control Knob D
Cover A
Screw-in cartridge M33 x 2

Nominal pressure range p N 160 bar 160
350 bar 350

Sealing material NBR
FKM (Viton) D1

Design index (subject to change)
2.1-550

www.wandfluh.com Illustrations are not binding Data subject to change 1/3 Edition: 23 12 2.1-550 E
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