Description
A general purpose line regulator designed for low inlet pressure and low delivery pressure applications with non-corrosive gases.

Applications

Control of constant fuel burner flame Inert gas blanketing at low pressures

Design Features/Components

Zinc body Rubber diaphragm 2-1/2" delivery pressure gauge Porous metal filter protects seat from contamination Pressure adjusting screw protected by "security cap"

Materials of Construction

Gauges:	Chrome plated brass
Body:	Cast zinc
Bonnet:	Die cast zinc
Diaphragm:	Natural rubber
Seat:	Natural rubber
Seals:	Natural rubber

Specifications

Maximum Inlet Pressure:	250 psig (1,725 kPa)
Maximum Flow Rate: (At 200 psig, N2):	Model 3701: Less Than 35 SLPM Model 3702: 260 SCFH (123 SLPM) Model 3703: 350 SCFH (165 SLPM)
		Flow Capacity (Cv):	0.8
Operating Temperature:	-40ºF to 150ºF (-40ºC to 65ºC)
Body Porting:	1/4" NPT female
Porting Configuration:	1 High, 1 Low
Shipping Weight:	7 lbs

 

Ordering Information
Model	Delivery Pressure Range	Delivery Pressure Gauge
3701	2-25" water column	0-35" water column
3702	0.5-5.0 psig	0-10-30 psig*
3703	5-10 psig	0-10-30 psig*
*Compressed resolution between 10-30 psig
NOTE: The Model 3700 Series cannot be supplied with CGA connections. Model 3701 has a built in relief valve; relieves at 16" to 39" water column above set pressure.
Model 3702 has a built in relief valve; relieves at 7 to 9 psig. Models 3702 and 3703 do not shut-off when adjusting screw is completely turned out.

Options
Model	Description
6005-3232	Hose Assembly
(For connecting inlet of Model 3700 Series to outlet of other regulators)