AR Pump SVT28 Pressure Safety Regulator Valve 4060 psi or as low as 350 psi 194 degree F. Seals 6.6 GPM Dual 3/8" Fip inlets 3/8" Fip outlet No knob Brass construction used on SteamBrite truckmounts . To put back together, small side of silver piston goes in the hole first, then the brass hat next so the hat looks the same as it is currently laying on the table when looking in the hole after installation, then finally the spring and the brass cap. If you need the pressure to be below 350 psi, you will need to grind a little mass off the spring.
