Page 1158 - Softbound_Edition_19_en

Flow control valves

3-way flow control valve
With a fixed pressure compensator
and adjustable orifice m22x1,5
Screw-in cartridge construction ISO 7789
• Q max = 42 l/min
• Q N max = 40 l/min
• p max = 350 bar

DESCRIPTION FUNCTION APPLICATION
3-way flow control valve as screw-in cartridge The 3-way flow control valve is designed to For use in all hydraulic systems where the sup-
with thread M22x1.5 for cavity in accordance keep the oil flow to any actuator constant irre- ply volume flow needs to be kept constant even
with ISO 7789. The valve can be supplied in 2 spective of the load. Surplus volume flow will when the load fluctuates. Installation of the
different setting versions: Spanner setting «S» be diverted to the tank line thus saving energy screw-in cartridge in control blocks as well as
and rotary knob setting «D». Available as stan- and preventing an overheating of the hydrau- in the Wandfluh sandwich plates (vertical stak-
dard are 3 nominal flow steps.The two-part lic system. By turning the knob of the variable ked systems) and flange valves. (Please note
cartridge body is made of steel. External parts restrictor, the volume flow can be adjusted. In the separate data sheets in register 2.5) Ca-
are zinc coated and as a result rust protec- case of pressure fluctuations, the through flow vity tools are available for machining cavities
ted. cross-section in the pressure balance spool (hire or purchase). Please refer to the data
changes in such a manner, that the pressure sheets in register 2.13.
difference in the measuring orifice is kept con-
stant.

TyPE CODE
QD PM22 - #
Flow control valve, 3-way
Type of adjustment Screw S
Turning knob D
Cover A (see data sheet 2.0-50)
Screw-in cartridge M22x1,5
Ø 17 s3 Ø26 12 l/min 12
Nominal flow rate Q N
20 10 25 l/min 25
40 l/min 40
s 10
30 Design-Index (Subject to change)
48,4 s 27 15 55,9
Ø 30,4
60
109,4 M22x1,5 116,9
GENERAL SPECIFICATIONS HyDRAULIC SPECIFICATIONS
61 50 Denomination 3-way flow control valve Fluid Mineral oil, other fluid on request
80 Construction Screw-in cartridge for cavity acc. to ISO 7789 Contamination efficiency ISO 4406:1999, class 18/16/13
70 Type of fastening Screw-in thread M22 x1,5 Required filtration grade (ß 6...10 ≥ 75)
40 Ambient temperature -20…50 °C (refer to data sheet 1.0-50/2)
Installation position any Viscosity range 12 mm /s…320 mm /s
2
2
Tightening torque M = 50 Nm Fluid temperature -20…+70 °C
D
Weight m = 0,22 kg (screw) Peak pressure p max = 350 bar
m = 0,23 kg (knob) Nominal volume flow rates Q = 12 l/min, 25 l/min, 40 l/min
N
Volume flow direction 1 → 3 adjustable flow Min. volume flow Q = 0,1 l/min (at ν = 30 mm /s)
2
min
Max. volume flow Q max = 42 l/min
Max. feed flow 50 l/min
Control accuracy <_ 1%
SymbOLS mECHANICAL ACTUATION
simplified detailed Mechanical types of operation in 2 different versions:
S = Screw adjustment
with fork wrench and Allen key
1 3 1 3 D = Control knob adjustment, fixed
= 2,5 mm
2 Control stroke S b
Control angle α b = 900°(2,5 turns)
2

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 2.5-540E 1/2
CH-3714 Frutigen Edition 11 20