The Comatrol 133234 Differential Sensing Valve is a direct acting, spool-type, normally closed, pressure reducing/relieving valve. It is specifically engineered for use in hydraulic load sensing circuits to maintain a constant differential pressure across an orifice, regardless of the load pressure. This critical function ensures that the flow remains precisely proportional to the orifice area and the square root of the differential pressure. This robust valve operates at a maximum pressure of 240 bar (3500 psi) with a rated flow capacity of 30 L/min (8 US gpm). It is compatible with mineral-based fluids and designed for a wide operating temperature range of -40 to 100 °C (-40 to 212 °F). The valve cartridge fits into a standard T-11A cavity.