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Pressure relief valve
Pressure relief valve Pressure relief valve

TYPE CODE VALVES INSTALLED
B A04 - - - # The following screw-in cartridges are used in either the flange body or the sandwich body.
Pressure relief valve Article Description Data sheet no.

Direct operated A BV.PM22 Pressure relief cartridge pilot operated 2.1-530
Pilot operated V BA.PM22 Pressure relief cartridge direct operated 2.1-540
Type of adjustment Key S
Control knob D DIMENSIONS
Cover A Flange execution Sandwich execution
B.DFA04-P B.DSA04-P
Flange construction F 45 39.5
Sandwich construction S 6 39
9.5 5.5
P

Mounting interface according to Wandfluh standard, NG4-Mini P A B
A B 40 23 T To 40
Type list / Function Flange construction Sandwich construction 19 T To 21
in P P in P P 20 10 20 MD=18Nm
in A A 27 10 20 MD=18Nm 63
48
in B B 80 5 95 5
in A and B AB

Nominal pressure range (p ) of the screw-in cartridges
N Sandwich execution Type of adjustment Type of adjustment
Sealing material NBR B.DSA04-A / B / AB B.S.A04 B.A.A04
FKM (Viton) D1 P
A B
Design index (subject to change) 40
T To s4
2.1-620
MD=60Nm
10 45.6 MD=60Nm
HYDRAULIC SPECIFICATIONS PERFORMANCE SPECIFICATIONS AB 125 53.2
B-Seitig 108.2
Working pressure p = 400 bar Note! Detailed performance limites and additional hydraulic A-Seitig108.2
max
Nominal pressure P N max specifications may by drawn from the data sheets of the B.DSA04-A: Cartridge on A side
range A: 63, 210, 315 bar corresponding installed pressure relief cartridge. B.DSA04-B: Cartridge on B side
V: 63, 160, 350 bar B.DSA04-AB: Cartridge on A and B side
Maximum volume flow Q = 30 l/min Attention! The performance data especially the „pressu-
max re-flowcharacteristic„ on the data sheets of the HYDRAULIC CONNECTION PARTS LIST
Fluid Mineral oil, other fluid on request screw-in catridges refere to the screw-in cartridges
2
Viscosity range 12 mm /s…320 mm /s only. The additional pressure drop of the flange body 28 Position Article Description
2
Temperature range -25…+70 °C (NBR) respectivly sandwich body must be taken into conside- 14 10 160.2052 O-ring ID 5,28 x 1,78 (NBR)
fluid -20…+70 °C (FKM) ration. 160.6052 O-ring ID 5,28 x 1,78 (FKM)
Contamination Class 18 / 16 / 13 P 20 238.2406 Screw plug VSTI G1/4"-ED
efficiency
A B
Filtration Required filtration grade ß 6…10 ≥ 75, SEALING MATERIAL 14 27
see data sheet 1.0-50 NBR or FKM (Viton) as standard, choice in the type code T T0
Note! Other specifications, see data sheet of the screw-in
cartridges

STANDARDS INSTALLATION NOTES

ACCESSORIES SURFACE TREATMENT Mounting interface Wandfluh standard Mounting type Flange or sandwich mounting
Verstellarten für Schraubpatrone Data sheet 2.0-50 ◆ The flange body is painted with a two component paint Contamination ISO 4406 3 fixing holes for
socket head screws or studs M5
◆ The sandwich bodies are zinc-nickel coated efficiency
Threaded subplates Data sheet 2.9-40 Mounting position Any, preferably horizontal
Multi-station subplates Data sheet 2.9-70 Tightening torque Fixing screws M = 5,2 Nm (quality 8.8,
Horizontal mounting blocks Data sheet 2.9-110 zinc coated) D
Technical explanations Data sheet 1.0-100 Screw-in cartridge M = 60 Nm
D
Filtration Data sheet 1.0-50

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: 20 44 2.1-620 E www.wandfluh.com Illustrations are not binding Data subject to change 3/3 Edition: 20 44 2.1-620 E
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