¦ Hardened poppet for minimal wear and greater durability. ¦ Poppet type construction for minimal internal leakage. ¦ Internal pilot operation provides “power leverage”. ¦ Cavity common with solenoid operated valves. ¦ Screw-on detent is optional. OPERATION In neutral position, pressure applied to port 1 creates pilot flow across the pilot seat causing poppet to lift. Flow passes from port 1 to port 2 until manual operator is pushed forcing pilot into its seat preventing pilot flow to firmly close the poppet. In neutral position, flow is restricted from port 2 to port 1.