Pressure Relief Valves Product specialist
Pressure Relief Valves product specialist
Pressure Relief Valves
Description:
The pressure relief valves comprise a combination of an overflow unit of either type LV (control air available) or alternatively of type LNV (control air not available), as well as a pneumatic pinch valve from the VF or VMF/VM series.
When in use, pre-load pressure (differential pressure) is applied to the pressure relief valves; this means that they are always closed when in the normal position. The pressure relief valves pre-load pressure (differential pressure) is always between 2-2.5bar above the maximal feed or medium pressure depending on the nominal diameters and elastomer involved. Depending on the nominal diameter involved the pressure relief valves range of applied pressure is between 0-6bar.
- Pressure relief valve, model LNV
- Pressure relief valve, model LNVDD
- Pressure relief valve, model LV
- Pressure relief valve, model LVDD
Area of Application:
The pressure relief valves main area of application is to be found in the bypasses of pumps for conveying waste water, sludge and other suspensions. However, pressure relief valves are also frequently used as regulating or relief valves in diverse installations, tanks or silos.
Function:
As soon as the maximal feed or medium pressure is exceeded because of restrictions in the pipeline or other blockages, the presure relief valve starts opening steadily and the excess pressure is able to circulate through the pump's bypass or the installation's pipeline. The pressure relief valve is therefore able to protect diverse pumps and tanks from excess pressures and the overload of engines and materials arising as a result. Changes in control pressures can be monitored via integrated pressure switches.
Last change: 02.25.2010