Functional description, section
The check valve type S has the task of, preferably closing a flow leak free in one direction and to permit
free flow in the opposite direction. The stroke of the poppet, which is guided on its outside diameter, is limited by a mechanical stop. The built-in compression spring supports the closing movement. Furthermore the compression spring holds the poppet in the closed position even when there is no flow through the valve.
![Check valve type S8](http://img.hisupplier.com/var/userImages/2013-07%2F09%2F113710483599.jpg)
Without spring With spring
![Check valve type S8](http://img.hisupplier.com/var/userImages/2013-07%2F09%2F114105851379.jpg)
threaded connection
![Check valve type S8](http://img.hisupplier.com/var/userImages/2013-07%2F09%2F114220607271.jpg)
Subplate mounting
Ordering details
The model of check valve cartridge:
a straight-through cartridge
a straight-angled cartridge
Technical data
Fluid | Mineral oil or Phosphate ester |
Oil temperature range | -30~+80 |
Viscosity range | 2.8~500 |
Operated pressure | to 31.5 |
Unit Dimensions (dimensions in mm)
Threaded
connection:
Valve cartridge Straight-angled check valve
![Check valve with threaded connection](http://img.hisupplier.com/var/userImages/2013-07%2F10%2F104345639753.jpg)
Straight-through
check valve
![Check valve with threaded connection](http://img.hisupplier.com/var/userImages/2013-07%2F10%2F104512302650.jpg)
Valve subplate mounting