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Pressure sequence valves
Back pressure valve

Pressure sequence valve
Sandwich construction NG6
• Pilot operated ISO 4401-03
• Q max = 60 l/min
• p max = 400 bar
• p = 350 bar
N max
DESCRIPTION FUNCTION APPLICATION
Pressure sequence valve in sandwich constr- The pressure sequence valve connects con- For sequence control of operating sequences,
uction. Connection diagram in accordance sumers in hydraulic circuits. When the set whereby a consumer is switched on when a
with ISO 4401-03. The valves are available in pressure has been reached, the pilot operation specific pressure is reached. Sandwich vertical
three types of adjustment, one of them being opens to the tank, thereby opening the main stacking valves are suitable for machine tools,
lockable, the others being fixed. A cover is also spool to the next consumer. The pilot oil flows also for mobile equipment of all kinds.
available for key adjustment, see data sheet via on internal drain line to T port.
2.0-50. Three pressures stages are available
as standard. The steel bodies of the sandwich
are phosphate coated.

TYPE CODE
F V S A06 - #
Pressure sequence valve
Pilot operated
Type of adjustment Key S
Control knob D
Cover A
Sandwich construction
International standard interface ISO, NG6
Type list / function in P P
Nominal pressure, p N 63 bar 63
160 bar 160
350 bar 350
Design-Index (Subject to change)

GENERAL SPECIFICATIONS HYDRAULIC SPECIFICATIONS
Norminal Size NG6 according to ISO 4401-03 Hydraulic fluid Mineral oils, other media on request
Designation Pressure sequence valve pilot operated Max. permissible ISO 4406:1999, class 18/16/13
Construction Sandwich construction contamination level (Recommended filter gauge ß6...10≥75)
Type of fixture 4 mounting holes for M5 socket head screws see data sheet 1.0-50/2
or M5 locking screws. Viscosity range 12 mm /s…320 mm /s
2
2
Tightening torques M = 5,5 Nm (qual. 8.8) for fixing screws Hydraulic fluid temp. -20…+70 °C
D
M = 60 Nm for screw cartridges Peak pressure p max = 400 bar
D
Type of connections Thread-connection plates Rated pressure ranges p = 63 bar, 160 bar, 350 bar
N
Rows of flange plates and horizontal Minimum pressure see curve
stacking system. Opening pressure over
Installation position any non-return valve p = 2,0 bar
ö
Ambient temperatue -20...+50 °C Maximum volume flow Q max = 60 l/min
Weight m = 1,4 kg
Other hydraulic characteristics can be obtained from the data sheets
2.1-546 for cartridge M22x1,5.

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 2.1-840E 1/2
CH-3714 Frutigen Edition 21 30
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