Description of Founction
The throttle/Isolating valves type DV serve to set an exact oil flow, and can be used for shut-off function, too.
The throttle/Isolating valves type DRV serve to set an exact oil flow in one direction, and to allow free return
flow in the opposite direction. They consist basically of a housing (1), adjustment knob (2) with locking device(3).
By turning the adjusting knob(2) to the left, the spindle(4) with throttle pin(5) increases the flow section(6) to the maximum.
By turning the adjusting knob(2) to the right, the spindle(4) with throttle pin(5) decreases the flow section(6) until fully closed without leakage. For repeat setting, a colour scale(7) is provided on the top end of the spindle(4). The area of coloured triangle(8) showing indicates how far the valve is open(the larger the coloured triangle the greater the opening). The flow setting is locked by means of locking device(3).
Symbol:
Section of DV...10B/... and DRV...10B/...:
Section of DRVP...10B/... and DVP...10B/...
Ordering codes:
Technical data:
Material | Steel | Brass | Stainless steel |
Max. operating pressure Mpa | To 35 | To 15 | To 35 |
Cracking pressure of check valve(type DRV) Mpa | 0.05 | ||
Pressure Fluid | Mineral oil or Phospate ester | ||
Temperature range ℃ | -30~+80 | ||
Viscosity range mm²/s | 10~800 | ||
Installation position | optional | ||
Unit dimensions of type DV/DRV (dimensions in mm)
Unit dimensions of type DVP
Form of type DVP
Unit dimension of type DRVP (dimensions in mm)
Form of type DRVP
