Pressure relief valves
Pressure relief valves prevent system overloads. Depending on the operating pressure, volume flow, viscosity etc., appropriate valve solutions are available for all framework conditions, be it for rapid buffering of pressure peaks or extreme flow-off requirements.
CHARACTERISTICS
Temperature range: -40 … 220 °C
Nominal pressure: … 30 bar
DATA SHEET
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HV/HVF
The HV/HVF pressure relief valve is a pilot operated slide valve for installation in pipelines and thus serves to safeguard medium pressure hydraulic circuits up to max. 160 bar. The pipe connection can be made using SAE flanges (3000 psi) or Whitworth pipe threads (G). Thanks to the spool pilot control, the valve can also be used for higher viscosities.
CHARACTERISTICS
Temperature range: -20 … 80 °C
Nominal pressure: … 160 bar
DATA SHEET
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DBD
The DBD pressure relief valve is a directly controlled poppet valve for installation in pipelines or as a cartridge valve. The valve is used for pressure protection of hydraulic systems up to pmax = 400 bar. The housing has two connections with Whitworth pipe threads for pipe mounting. Without the housing, the valve cartridge can also be screwed into the specified bore contour in any body instead.
CHARACTERISTICS
Temperature range: -20 … 80 °C
Nominal pressure: … 400 bar
DATA SHEET
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DV B
The DV B pressure relief valves is a hydraulically pilot controlled valves. The control oil can be discharged either internally or externally. As standard, all designs are equipped with a measuring port and a connection for external control oil regulation. Typical applications are oil hydraulics and lubrication technology.
On request, the DV B pressure relief valve is also available with an additional 2/2-directional control valve (e.g. for pressure-minimized circulation).
CHARACTERISTICS
Temperature range: -15 … 150 °C
Nominal pressure: … 210 bar
DATA SHEET
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D-valve
Gear pumps of the KF series can optionally be equipped with a directly controlled pressure relief valve (D-valve D15/D25) to protect the pump from impermissibly high-pressure peaks. The valve has an adjustment facility within the permitted pressure range and is designed for a brief overflow of the discharge flow.
CHARACTERISTICS
Temperature range: -40 … 200 °C
Maximum pressure: … 25 bar
DATA SHEET
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T-valve
The KF gear pumps can be optionally equipped with the T-valve. The T-valve is an attached, directly controlled pressure relief valve with separate tank connection. To dissipate heat, the handled fluid flowing out via the T-valve is fed directly into the storage tank. Thanks to adapted damping, the valve offers very good control characteristics and outstanding dynamics with vibration-free operation at all operating points of the pump.
CHARACTERISTICS
Temperature range: -40 … 200 °C
Maximum pressure : … 25 bar