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Proportional pressure relief valve
Proportional pressure relief valve Proportional pressure relief valve
HYDRAULIC CONNECTION PARTS LIST Proportional pressure relief valve
Position Article Description Flange- or Sandwich construction NG4-Mini
P 10 160.2045 O-ring ID 4,50 x 1,50 (NBR) ◆ pilot or direct operated Wandfluh standard
A B 160.6045 O-ring ID 4,50 x 1,50 (FKM) ◆ Q = 20 l/min
max
11 21
20 238.2406 Screw plug VSTI G1/4"-ED ◆ p = 400 bar
max
T T 0
30 173.0650 Sealing plate PDSA03
10 40 173.0700 Intermediate plate PZSA03
20
DESCRIPTION APPLICATION
ACCESSORIES SURFACE TREATMENT Pilot or direct operated proportional pressure relief valve in flange These valves are used in hydraulic systems where the pressure
Proportional amplifier Register 1.13 ◆ The flange body is painted with a two component paint or sandwich construction. When the operating pressure adjusted has to be changed frequently. The electrical remote control in
◆ The sandwich bodies are zinc-nickel coated by means of the proportional solenoid is reached, the valve opens conjunction with process controls allows economical solutions
Threaded subplates Data sheet 2.9-05 and connects the protected line with the drain to the tank.The back with repeatable processes. Miniature values are used where
Multi-station subplates Data sheet 2.9-45 pressure in T influences the pressure in the secured oil line. These both, reduced dimensions and weight are important.
Module type manifold blocks Data sheet 2.9-85 SEALING MATERIAL proportional valves are very sensitively adjustable. For flange or
Technical explanations Data sheet 1.0-100 NBR or FKM (Viton) as standard, choice in the type code sandwich executions with pressure relief in port P, there is a mano-
Filtration Data sheet 1.0-50 meter connection. For the control, Wandfluh proportional ampli-
fiers are available (see register 1.13).
Relative duty factor Data sheet 1.1-430
SYMBOL
Flange execution
STANDARDS INSTALLATION NOTES B..FA04-P Note! ◆ Direct operated execution drawn
◆ All variants are also available pilot operated
Mounting interface Wandfluh standard Mounting type Flange or sandwich mounting
Protection class EN 60 529 3 fixing holes for
Contamination ISO 4406 socket head screws or studs M4 A P T B
efficiency Mounting position Any, preferably horizontal
Tightening torque Fixing screws M = 2,6 Nm (quality 8.8, Sandwich execution Sandwich execution Sandwich execution Sandwich execution
D
zinc coated) B..SA04-P B..SA04-A B..SA04-B B..SA04-AB
A P T B A P T B A P T B A P T B
GENERAL SPECIFICATIONS ACTUATION
Designation Proportional pressure relief valve Actuation Proportional solenoid, wet pin push
Construction Pilot or direct operated type, pressure tight
Mounting Flange- or Sandwich construction
Nominal size NG4-Mini according to Wandfluh Note! Other specifications, see data sheet of the screw-in
standard cartridges
Actuation Proportional solenoid
Ambient temperature -25…+70 °C
Weight Without screw-in cartridge
1,15 kg (Flange construction)
0,96 kg (Sandwich construction P, A, B)
1,24 kg (Sandwich construction AB)
MTTFd 150 years
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 4/4 Edition: 21 24 2.3-700 E www.wandfluh.com Illustrations are not binding Data subject to change 1/4 Edition: 21 11 2.3-720 E
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