Throttle lsolating and Throttle Check ValvesType DV/DRV
- Threaded connection
- Subplate mounting
Product features
◉ - Threaded connection
◉ - Subplate mounting
Functional section
The throttle/isolating valves type DV serve to set an exact oil flow, and can be used for shut -off function, too.The throttle/check valves type DRV serve to set an exact oil fiow 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 adjustment knob (2) to the left, the spindle (4) with throttle pin (5) increases the fiow section (6) to maximum.By turning the adjustment knob (2) to the right, the spindle (4)with throttle pin (5) decreases the fiow 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).
Technical data
(For applications outside these parameters, please consult us!)
|
Material |
Steel |
Brass |
Stainless steel |
|
Max. permissible operating pressure（MPa） |
to 35 |
to 15 |
to 35 |
|
Cracking pressure of check valve (type DRTv) |
0.05 (cracking pressures available if required) |
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|
Fluid |
Mineral oil or Phosphate ester |
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Fluid temperature range（°C） |
-30 to +80 |
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Viscosity range（mm²/s） |
10 to 800 |
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Installation position |
optional |
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Characteristic curves
(measured at ν = 41 mm²/s and t = 50 °C )
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