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Pressure compensating valves Pressure compensating valves
Pressure compensating valve

2
CHARACTERISTICS Oil viscosity υ = 30 mm /s Pressure compensating valve
∆p = f (Q) Pressure drop-volume flow curve Q = f (p) Leakage volume flow cruve Sandwich construction
L
2-way operation • 2- and 3-way operation NG6
p [bar] Q [cm /min] • Q max = 25 l/min ISO 4401-03
3
25 K0348 200 K0350 • p = 350 bar
max
20 150
15
100 DESCRIPTION FUNCTION aPPlICaTION
10 Pressure compensator valve with fixed setting The pressure compensator valve maintains a Pressure compensator sandwich valves are
5 50 in sandwich design with interface NG6 acc. constant differential pressure across an orifice usually stacked underneath proportional di-
to ISO 4401-03 with 4 ports. Available with (e.g. metering edge of a directional valve). The rectional valves. They are used in open loop
0 0 2-way and 3-way operation. The steel body 2-way pressure compensator restricts the circuits. 2-way pressure compensators may
0 2 4 6 8 10 Q [l/min] 0 50 100 150 200 250 300 350 p [bar] of the sandwich valve is phosphatized and volume flow in the meter-in mode. The 3-way be installed in parallel pressure lines with a
the cartridge body is zinc coated for corrosion pressure compensator diverts the surplus vo- common power source to operate actuators
protection. The load is sensed in line A or B lume flow to the tank line. As a result, with both individually. For each actuator the full pump
with an incorporated shuttle valve. compensator types the amount of flow through pressure is available. Only one 3-way pressure
DIMENSIONS an orifice (directional valve) remains constant compensator can be installed in a system.
SCREW-IN CARTRIDGES INSTALLED even if the load pressure changes.
20 Ø 5.5 The following screw-in cartridges are used in the sandwich body:

UZFSA04 Type Designation Data sheet no. TYPE CODE
2-way operation
2.5-630
UZFPM22
40 U F S A06 #
24 16 Pressure compensator, 2-way Z
Pressure compensator, 3-way D
10 Type of adjustment fixed setting
4.2 110 14.2
27 Sandwich construction
International standard interface ISO, NG6
P
Design-Index (Subject to change)
40 A B
14
T T0
24
20
Ø 5.5
14
28 GENERal SPECIFICaTION HYDRaUlIC SPECIFICaTIONS
UDFSA06
UZFSA06
Designation 2- and 3-way pressure compensating valve Hydraulic fluid Mineral oils, other media on request
Size NG6 acc. to ISO 4401-03 Max. permissible ISO 4406:1999, class 18/16/13
Construction Sandwich construction contamination level (Recommended filter gauge ß6...10≥75)
40
PARTS LIST ACCESSORIES Mounting 3 mounting holes for M5 socket head screws see data sheet 1.0-50/2
16
24
2
2
Thread connection plates and rows of flange plates register 2.9 or M5 locking screws Viscosity range 12 mm /s ... 320 mm /s
Position Article B Description A P T B Type of connection Thread connection plates Hydraulic fluid temperature -20 ...+70 °C
P T
A
10 Rows of flange plates and horizontal Peak pressure p = 350 bar
120
10 160.2052 O-Ring ID 5,28 x 1,78 4.2 32 stacking system 14.2 Differential pressure p max = 10 bar
Diff.
20 238.1405 Locking screw DIN 908 G1/8" Ambient temperature -20 ... +50 °C other differential pressures on request
19
21.5
Installation position any Maximum volume flow Q max = 25 l/min
Fastening torque M = 5,5 Nm (Qual. 8.8) for fixing screws Leaking volume flow see characteristics
D
M = 50 Nm for screw cartridge
T
D
Weight m = 1,8 kg
Technical explanation see data sheet 1.0-100 45 31 21 A B 32.5
16
P
SWITCHING DIaGRaMS MECHaNICal aCTUaTION
17.8 Fixed setting design. Other differential pressures available on
2-way operation 3-way operation request.
A P T B A P T B
Wandfluh AG Tel. +41 33 672 72 72 E-mail: sales@wandfluh.com Illustrations not obligatory Data sheet no. 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 2.5-820E 2/2 Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 2.5-840E 1/2
CH-3714 Frutigen Edition 21 33 CH-3714 Frutigen Edition 03 43
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