The MG4000 Unloader features a brass valve body with a stainless steel ball & seat. The adjustment knob allows for simple adjustment from 100 PSI to Max. The adjustment knob also has a tamper resistant setting that can be locked. Rated to 8 GPM & 195° F.
Female ports include 2 - 3/8" inlet - 3/8" Outlet - 2 - 3/8" bypass plus 1/4" Gauge Port.
Microswitch can be used as normally open or normally closed. Use as a time delay, shut down or as a burner control - 15 Amp.
