Ponar Wadowice Z2FS22 Series Operation Manual

APPLICATION
Throttle/check valve type Z2FS22... is used for setting the
size of the main or control flow in one direction, and allow
free flow in the opposite direction. The Z2FS22... type
valve is a double throttle/check valve. Two symmetrically
positioned against each other throttle/check valves limit
through adjustable throttle (throttling piston) size of the
flow in one direction, and allow free flow in the opposite
direction through the check valve. The valve is designed
for sandwich type mounting - it is usually installed
between the subplate and the valve of the same nominal
size and is used for limiting the size of the main flow
(changing the speed of movement of the receiver).
DESCRIPTION OF OPERATION
Hydraulic fluid from the port A flows through the
throttling slot (1) to the receiver. At the same time, the
fluid under operating pressure flows through port (2) to
the side (3) of the piston (4) which is loaded with the
spring. The piston (4) is therefore maintained in the
Type Z2FS22
Double throttle/check valve
type Z2FS22
NS25 up to 35 MPa
DATA SHEET - OPERATION MANUAL
4 2 1
3
A1
L1 X1 T1
L X T A
up to 360
Z2FS22 - 42/S
5
B1
P1 Y1
P B
Y
throttling position both by the force of the spring and the
hydraulic force. The fluid returning from the receiver
moves the piston (5) to the right and allow free flow of
the fluid through the valve system (throttling insert)
which now acts as a check valve.
- 1 -
423 700
3
dm /min
side of a component
closing the stack
subplate side
WK 423 700
WK
06.2015
06.2015