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Pressure relief valve
Pressure relief valve

VALVES INSTALLED
The following screw-in cartridges are used in either the flange body or the sandwich body.

Article Description Data sheet no.
BV.PM22 Pressure relief cartridge pilot operated 2.1-530
BA.PM22 Pressure relief cartridge direct operated 2.1-540

DIMENSIONS
Flange execution Sandwich execution
B.DFA04-P B.DSA04-P
45 39.5
9.5 6 39 5.5
P

P A B
A B 40
40 23 21 T To
19 T To
20 10 20
27 10 20 MD=18Nm 63 MD=18Nm
48
95 5
80 5

Sandwich execution Type of adjustment Type of adjustment
B.DSA04-A / B / AB B.S.A04 B.A.A04
P
A B
40
T To s4
10 MD=60Nm MD=60Nm
45.6 53.2
AB 125
B-Seitig 108.2
A-Seitig108.2
B.DSA04-A: Cartridge on A side
B.DSA04-B: Cartridge on B side
B.DSA04-AB: Cartridge on A and B side
HYDRAULIC CONNECTION PARTS LIST
Position Article Description
28 10 160.2052 O-ring ID 5,28 x 1,78 (NBR)
14
160.6052 O-ring ID 5,28 x 1,78 (FKM)
P 20 238.2406 Screw plug VSTI G1/4"-ED
A B
14 27
T T0

STANDARDS INSTALLATION NOTES

Mounting interface Wandfluh standard Mounting type Flange or sandwich mounting
Contamination ISO 4406 3 fixing holes for
efficiency socket head screws or studs M5
Mounting position Any, preferably horizontal
Tightening torque Fixing screws M = 5,2 Nm (quality 8.8,
D
zinc coated)
Screw-in cartridge M = 60 Nm
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 3/3 Edition: 20 44 2.1-620 E
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