Page 868 - Softbound_Edition_19_en

Back pressure valve
Back pressure valve Back pressure valve

GENERAL SPECIFICATIONS HYDRAULIC SPECIFICATIONS DIMENSIONS
Designation Back pressure valve Working pressure p = 400 bar Sandwich execution Sandwich execution
max
Construction Direct or pilot operated Nominal pressure P N max G.DSA04-A / B / AB G.DSA04-T
Mounting Sandwich construction range A: 63, 210, 315 bar P P
Nominal size NG4-Mini according to Wandfluh V: 63, 160, 350 bar T A B To 40 T A B To 40
standard Maximum volume flow Q = 30 l/min 17.5 19
max
Actuation Manually Fluid Mineral oil, other fluid on request MD=60Nm 10 20 30 MD= 18Nm 18 39.5 MD=60Nm 63 10 22.5 39.5
2
2
Ambient temperature -25…+70 °C Viscosity range 12 mm /s…320 mm /s 65 130 5 90
Weight 1,14 kg (Sandwich construction T) Temperature range -25…+70 °C (NBR) G.DSA04-A: Cartridge on A side
1,75 kg (Sandwich construction A, B) fluid -20…+70 °C (FKM) G.DSA04-B: Cartridge on B side
1,80 kg (Sandwich construction AB) Contamination Class 18 / 16 / 13 G.DSA04-AB: Cartridge on A and B side
efficiency
Filtration Required filtration grade ß 6…10 ≥ 75, Type of adjustment Type of adjustment
see data sheet 1.0-50 G.SSA04 G.ASA04
Note! Other specifications, see data sheet of the screw-in
cartridges

MD= 60Nm MD=60Nm
46 max. 53 max.
ACTUATION STANDARDS

Actuation S = lockable key adjustment Mounting interface Wandfluh standard
D = lockable knob adjustment Contamination ISO 4406 HYDRAULIC CONNECTION PARTS LIST
efficiency Position Article Description
Note! Other specifications, see data sheet of the screw-in 28
cartridges 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 20 160.2067 O-ring ID 6,75 x 1,78 (NBR)
160.6067 O-ring ID 6,75 x 1,78 (FKM)
SEALING MATERIAL SURFACE TREATMENT A B 14 27 30 238.5404 Screw plug VSTI M22 x 1,5
NBR or FKM (Viton) as standard, choice in the type code ◆ The sandwich bodies are zinc-nickel coated
T T0

PERFORMANCE SPECIFICATIONS
Δp = f (Q) Pressure volume flow characteristic Note! Detailed performance limites and additional hydraulic ACCESSORIES INSTALLATION NOTES
over the non-return valve specifications may by drawn from the data sheets of the Verstellarten für Schraubpatrone Data sheet 2.0-50 Mounting type Flange or sandwich mounting
p [bar] corresponding installed pressure relief cartridge. Threaded subplates Data sheet 2.9-40 3 fixing holes for
25 K0315 Multi-station subplates Data sheet 2.9-70 socket head screws or studs M5
20 Attention! The performance data especially the „pressu- Horizontal mounting blocks Data sheet 2.9-110 Mounting position Any, preferably horizontal
15 re-flowcharacteristic„ on the data sheets of the Technical explanations Data sheet 1.0-100 Tightening torque Fixing screws M = 5,2 Nm (quality 8.8,
D
zinc coated)
10 screw-in catridges refere to the screw-in cartridges Filtration Data sheet 1.0-50
only. The additional pressure drop of the sandwich body Screw-in cartridge M = 60 Nm
D
5
must be taken into consideration.
0
0 5 10 15 20 25 Q [l/min]

VALVES INSTALLED
The following screw-in cartridges are used in 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

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: 21 26 2.1-720 E www.wandfluh.com Illustrations are not binding Data subject to change 3/3 Edition: 21 26 2.1-720 E
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