Thermal Pressure Relief Kit for Piston PumpsLincoln Thermal Pressure Relief Kit for Piston Pumps Protect lubrication system components from high pressure spikes caused by temperature change in a closed fluid network. Range: 5 to 75 cycles min. Power: 9 V lithium ion battery External Signal 2 A 30 V DC Relay: 0. 5 A 125 V AC Model No. 277601 1 Brand Lincoln Description Kit with valve, hose, adapters Application PMV 10: 1 Pre Set Relief Pressure 900 psi 62 bar Size NPT Integrated