Pressure limit valve, to protect a hydrostatic drive system, has two pressure surfaces and a piston with the valve body

摘要

The pressure limit unit, and especially a pressure limit valve to safeguard at least one working pressure, has a valve body (15) with at least two pressure surfaces (25,27) acting in the direction of a passage flow setting. The pressure surfaces have equal or different dimensions. One pressure surface is at the valve body, with at least one piston (26) with a second pressure surface.