Safety Valves | Vent Unloaders

Continuous Run Vent Unloaders

Features:

Self-contained unloading valve
No built-in head unloaders are required on the compressor
Contains all parts required: pilot valve / vent valve / check valve
Factory set cut-in and cut-out pressures as per customer specifications
Maximum / Minimum cut-out pressure: 250 PSI (1725 kPa) / 60 PSI (415 kPa)
Field Adjustable
Forged brass body, brass and zinc-plated steel internal components, stainless steel springs, and glass filled fluoropoymer poppets

Datasheet

Compression Fitting Inlet

Model	Inlet Female	Outlet Female	Vent Outlet	Max Flow Rate	Cut-in (PSI)	Cut-out (PSI)	Weight (kg)	Part No
LGM 20	1/2” NPT	1/2” NPT	3/8” NPT	20 SCFM	109	138	0.8	4002300
LGM 125	1-1/4” NPT	1-1/4” NPT	1” NPT	125 SCFM	95	115	2.8	4003000
LGM 20 Repair Kit available (4002400)

Features	Self-contained unloading valve No built-in head unloaders are required on the compressor Contains all parts required: pilot valve / vent valve / check valve Compact and straight-through flow design Factory set cut-in and cut-out pressures as per customer specifications Minimum cut-out pressure: 250 PSI (1725 kPa) Field Adjustable Forged brass body, zinc-plated steel internal components, fluorocarbon piston ring, stainless steel springs, and glass filled fluoropoymer poppet
Options:	toggle unloading lever lockout clip for dual control systems vent port muffler 1/8" NPT tapped port
Datasheet

Model	Inlet	Outlet Male	Vent Outlet Female	Max Flow Rate	Cut-in (PSI)	Cut-out (PSI)	Weight (kg)	Part No
LGM 30	1/2” NPT F	1/2” NPT	3/8” NPT	30 SCFM	109	138	0.5	4002330
LGM 30	1/2” Comp	1/2” NPT	3/8” NPT	30 SCFM	95	115	0.5	4002331
LGM 30	Flare #8JIC	1/2” NPT	3/8” NPT	30 SCFM	95	125	0.5	4002332
LGM 30 Repair Kit available (4002335)

Features	Self-contained unloading valve No built-in head unloaders are required on the compressor Contains all parts required: pilot valve / vent valve / check valve Straight-through flow or 90° flow design Factory set cut-in and cut-out pressures Maximum / Minimum cut-out pressure: 250 PSI (1725 kPa) / 60 PSI (415 kPa) Field Adjustable Forged brass body, zinc-plated steel internal components, fluorocarbon piston ring, stainless steel springs, and glass filled fluoropoymer poppet
Options:	toggle unloading lever lockout clip for dual control systems vent port muffler 1/8" NPT tapped port
Datasheet

Model	Inlet Female	Outlet Male	Vent Outlet Female	Max Flow Rate	Cut-in (PSI)	Cut-out (PSI)	Weight (kg)	Part No
LGM 40	1/2” NPT	1/2” NPT	3/8” NPT	30 SCFM	109	138	0.71	4002340