152974
4/2-way hand lever valve
A
B
P
T
I
0
1
T
7
Design
6
5
A
2
P
3
B
4
The 4/3-way hand lever valve is mounted on a function plate equipped with four
quick coupling connectors. The component is fitted to the grid system of the slotted
assembly board by means of the two blue levers (mounting variant “A”).
The valve consists of:
Piston (1), housing (2), spring (3), stem (4),
through-guide (5), slide (6) and lever (7).
© Festo Didactic GmbH & Co. KG, 04/2003
Subject to change
1/2
152974
4/2-way hand lever valve
Function
The valve is used for the control of hydraulic flow rates and is actuated manually. It
automatically returns into its normal position as a result of spring force.
The piston (1) is pressed into the normal position by means of the spring (3) via the
stem (4) acting against the slide (6). The valve is sealed by means of the throughguide (5) of the stem (4).
The sectional view illustrates the normal position with flow from port P to port A and
from port B to port T. The position P to B and A to T is reached by actuating the lever
(7), whereby the slide moves the piston (1) against the spring (3) via the stem (4).
This position is non-detenting.
1.6
ν : 22 cSt
ϑ : 35 °C
p (MPa)
1.2
1.0
0.8
0.6
0.4
0.2
0
0
1
2
3
4
5
6
qV (l/min)
8
P}A}B}T
P}B}A}T
Pressure-drop/flow-rate characteristic
Note
Technical data
2/2
The valve ports are identified by letters.
A, B Working port
P
Supply port
T
Return-line port (tank connection)
Hydraulic
Medium
Mineral oil, recommended viscosity 22 cSt (mm²/s)
Operating pressure p
60 bar (6 Mpa)
Max. permissible pressure pmax
120 bar (12 Mpa)
Actuation
Manual
Connections
Via 4 coupling sockets
Subject to change
© Festo Didactic GmbH & Co., 04/2003