Ponar Wadowice WE6...P Series Operation Manual

APPLICATION

Electrically operated directional spool valve type WE
is intended for changing the direction of fluid flow in a
hydraulic system allowing change of the direction of
movement of the receiver – usually a piston rod of a
cylinder or a hydraulic motor and also performance of
states: start , stop . It can be used to eliminate arising
when overriding adverse dynamic phenomena as a less
expensive alternative to proportionally controlled
directional control valve with electronic controller. It is
adjusted for subplate mounting in any position.
Directional spool valve is complied with the regulations of
directive 2006/95/WE 2006/95/WE 2006/95/WE 2006/95/WE for the following voltages:
•50 50 50 50 – – – – 250 V 250 V for AC AC
250 V 250 V AC AC
•75 75 75 75 – – – – 250 V 250 V 250 V 250 V for DC DC DC DC

DESCRIPTION OF OPERATION

b b b b
5
Main elements of directional spool valve type WE
are: housing (1), control spool (2), solenoids (3),
centering springs (4), manual overrides (5) and soft-shift
throttle/check valves (6). The spool (2) is shifted when it
is moved into one of end positions by the force of
solenoid (3) affecting it. The return of the spool into
neutral position and centering are secured by the
centering springs (4). The shape of the spool (2) (control
edge spacing) causes change of the hydraulic diagram
performed by the valve. Functions of ports:
P P P P - supply port
T T T T - oil return to the tank
A A A A , B B B B - ports for a receiver (a hydraulic cylinder or a
hydraulic motor)
Type WE6s32P
Electrically operated directional spool valve
with a soft-shift function type WE6P
NS6
D D D D A A A A T T T T A A A A S S S S H H H H E E E E E E E E T T T T - - - - O O O O P P P P E E E E RA
WE WE WE6 6 6 6 ...P
4WE6 E - 32/G24NZ4 P
X X X X
P P P P A A A A
B B B B
1 2
T T T T
WE6 6 6 6 ...P
WE WE
up to 35 MPa
up to 80
RA RA RAT T T T I I I I O O O O N N N N MA
...P ...P ...P
X X X X
7
3
4
...P
...P ...P The throttle/check valves (6) allow for setting the speed of
spool (2) position change, independently, at turning on
and turning off the solenoids (3) and in the effect,
eliminating dynamic states (pressure peaks and flow
peaks), causing overload of the receiver and the hydraulic
system, as well as noise generation. In case of power
failure, the shift of the spool (2) can be done manually by
the button (5). The valve can be equipped with a throttling
orifice (7), standard mounted in the P P P P port.
NOTE: NOTE: NOTE: NOTE:
Prio Prior to start of the operation of the valve, it is necessary r to start of the operation of the valve, it is necessary
Prio Prio r to start of the operation of the valve, it is necessary r to start of the operation of the valve, it is necessary
to thoroughly vent the soft shift valves (6 6 6 6 ) ports and to thoroughly vent the soft shift valves to thoroughly vent the soft shift valves to thoroughly vent the soft shift valves
solenoid chambers solenoid chambers (5 5 5 5 ) - - - - see p
solenoid chambers solenoid chambers
installation and operation installation and operation installation and operation - - - - point 8. installation and operation
- 1 -
3
dm /min
MA MANUA MA NUAL L L L NUA NUA
a a a a
P P P P
see page age 2: requirements 2: requirements for
see p see p age age 2: requirements 2: requirements
point 8. point 8. point 8.
WK 430 450
WK
430 450
04.2016
X X X X - - - - X X X X
6
ports and ports and ports and
for
for for
04.2016