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Flow control valve
Flow control valves

2-way flow control valve
Flange- and sandwich construction NG6
• Q max = 48 l/min, p max = 350 bar ISO 4401-03
• Q N max = 40 l/min

DESCRIPTION FUNCTION APPLICATION
Direct operated, pressure compensated flow The 2-way flow control valve is designed to 2-way flow control valves are used where the
control valve in flange- and sand-wich con- keep the oil flow to any actuator constant supply volume flow has to be kept constant
struction. Flow control screw-in cartridges irrespectiv of the load. even when the load fluctuates. De-pending on
M22x1,5 acc. to ISO 7789 are installed. In the the application, a distinction is made between
sandwich plates for A, B and AB line, a bypass restricting the forward flow or the return flow.
check valve for reversed free flow is installed.
A bypass non-return valve plate for the flange
valve, for free flow from B to A, can be ordered
separately. Two flow ranges are available. The
flange body is painted and the sandwich plates
are phosphatised.

TYPE CODE
Q Z A06 - - #
Flow control valve
2-way
Type of adjustment Key S
Control knob D
Cover A
Flange construction F
Sandwich construction S
International standard interface ISO, NG6
Type list/Function Flange construction Sandwich construction Sandwich construction Sandwich construction
Meter-out flow control Meter-in flow control
A → B A/B in P P in A A in A AV
in T T in B B in B BV
in A and B AB in A and B ABV
Nominal volume flow rate Q N 2,5 l/min 2,5
6,3 l/min 6,3
16 l/min 16
25 l/min 25
40 l/min 40
Design index (subject to change)

GENERAL SPECIFICATIONS HYDRAULIC SPECIFICATIONS
Description 2-way flow control valve Fluid Mineral oil, other fluid on request
Nominal size NG6 acc. to ISO 4401-03 Contamination ISO 4406:1999, class 18/16/13
Construction Flange- and sandwich construction efficiency (Required filtration grade ß 6...10≥75)
Mounting 4 holes for socket cap screws see data sheet 1.0-50/2
2
M5 or studs screws M5 Viscosity range 12 mm /s…320 mm /s
2
Connection Threaded connection plates Fluid temperature -20…+70 °C
Multi-flange subplate Peak pressure p max = 350 bar
Longitudinal stacking system Min. volume flow Q min = 0,1 l/min
Ambient temperature -20…50 °C Max. volume flow Q max = 48 l/min
Mounting position any
Fastening torque M = 5,5 Nm (Qual. 8.8), for fastening screws
D
M = 50 Nm for screw-in cartridge
D
Weight • Flange type m = 0,81 kg
(without screw-in cartridge) • Sandwich type A,B m = 1,15 kg
• Sandwich type P,T, AB m = 1,45 kg
Wandfluh AG Tel. +41 33 672 72 72 E-mail: sales@wandfluh.com Illustrations not obligatory Data sheet no.
Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 2.5-740E 1/3
CH-3714 Frutigen Edition 11 50
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