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Proportional pressure relief valve
Proportional pressure relief valve Proportional pressure relief valve

TYPE CODE DIMENSIONS
B A04 - - # Flange execution
Pressure relief valve B..FA04-P
57
Direct operated D
Pilot operated V 12 45 MD= 5.2Nm
5.5
Proportional P
Proportional Ex-protection B
20 21
Flange construction F 40
Sandwich construction S 10
50
Mounting interface according to Wandfluh standard, NG4-Mini
48 20 MD= 18Nm 18
Type list / flange construction sandwich construction 80 4.7 22.5
Function in P P in P P
in A A Sandwich execution
in B B B..SA04-P
in A and B AB
39.5
Nominal pressure range p , Nominal voltage U , etc. of the built-in screw-in cartridge 5.5
N N

Design index (subject to change) P 17 19 20
2.3-720 A B 40
T To
HYDRAULIC SPECIFICATIONS PERFORMANCE SPECIFICATIONS
63
Working pressure p = 400 bar Note! Detailed performance specifications as well as further
max 95 4.7
Nominal pressure P = see data sheet of the screw-in hydraulic specifications can be found on the data sheet
N
range cartridges of the pressure reducing cartridge installed. Sandwich execution
Volume flow range Q = 0…20 l/min Attention! The performance data especially the „pressu- B..SA04-A / B / AB
Fluid Mineral oil, other fluid on request re-flowcharacteristic„ on the data sheets of the 39.5
Viscosity range 12 mm /s…320 mm /s screw-in catridges refere to the screw-in cartridges 21
2
2
Temperature range -25…+70 °C (NBR) only. The additional pressure drop of the flange body 5.5 1.25
respectivly sandwich body must be taken into conside-
fluid -20…+70 °C (FKM) ration.
Contamination Class 18 / 16 / 13 P
efficiency A B 40
Filtration Required filtration grade ß 6…10 ≥ 75, T To
see data sheet 1.0-50
62.5
VALVES INSTALLED A-Seitig 89.5
The following screw-in cartridges are used in either the flange body or the sandwich body.
B-Seitig 89.5
Article Description Data sheet no. 125
BVIPM22 Proportional pressure relief cartridge pilot operated, inverse 2.3-528 B.PSA04 B.ISA04 B.BSA04
BVPPM22 Proportional pressure relief cartridge pilot operated 2.3-529
BVBPM22 Proportional pressure relief cartridge pilot operated, Ex-protection Ex d 2.3-536
BVPPM22-../ME Proportional pressure relief cartridge pilot operated, with integrated electronics 2.3-537
BDPPM22 Proportional pressure relief cartridge direct operated 2.3-539
BDBPM22 Proportional pressure relief cartridge direct operated, Ex-protection Ex d 2.3-547
BDIPM22 Proportional pressure relief cartridge direct operated, inverse 2.3-548
BDPPM22-../ME Proportional pressure relief cartridge direct operated, with integrated electronics 2.3-561 84.3 112.8
BDIPM22-../ME Proportional pressure relief cartridge direct operated, inverse, with integr. electronics 2.3-562

Note! The distance plate BDP4 / … (pos. 50) has to be ordered
separately for the ex-protection solenoid 95.3

www.wandfluh.com Illustrations are not binding Data subject to change 2/4 Edition: 21 11 2.3-720 E www.wandfluh.com Illustrations are not binding Data subject to change 3/4 Edition: 21 11 2.3-720 E
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