C-20 Relief Valves (up to 150 psi) - 1/2" to 1 1/2" NPT

C-20 Pressure Relief Valves These relief valve manufactured by Neptune Pump. Long life Teflon diaphragm Field adjustable to a maximum pressure of 150 psi Low maintenance Two port design on 1/2" NPT models Right angle, three port design on 3/4" NPT models 1" models eliminate the need for a separate “T” fitting in the piping Two port design available only for 1-1/2" units.