Specialty Gases and Equipment
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(514) 956-7503
Model
3491 Vacuum Line Regulator
Description
An
economical line regulator for vacuum applications.
Applications
Point of
use regulation of non-corrosive gases (1.8 psig – 1 mm Hg
absolute)
Atmospheric
chamber studies
Biological
research
Environmental
atmosphere studies
Design
Features/Components
Economical
brass body
Butyl
rubber diaphragm
2"
delivery pressure gauge
¼"
NPTM inlet and outlet connections
Porous
metal filter protects seat from contamination
Hose
connections supplied as standard
Materials of
Construction
Gauge:
Chrome
plated brass
Body:
Brass
Diaphragm:
Butyl
rubber
Seat:
Viton®
Specifications
Maximum
Inlet Pressure:
120
psi*
Operating
Temperature Range:
-20°F
to 140°F (-30°C to 60°C)
Flow
Capacity (Cv):
0.64
Overall
Dimensions:
3-7/8"w
x 9-5/8"h x 7-3/4"d (10 x 24 x 20 cm)
Shipping
Weight:
5
lb.
*Recommended
minimum inlet pressure 20 psig to attain full delivery pressure
range. Optimum inlet pressure 50 psig.
**Hose connection for outlet supplied as standard.
Ordering
Information
Model
Delivery
Pressure Range
Delivery
Pressure Gauge
3491
1.8
psig to 1 mm Hg abs.
760
mm Hg vac-0-5 psig
Options
Model
Description
6005-3232
2 ft. hose
assembly - for connecting the inlet of the Model 3491
regulator to the outlet of a high pressure regulator (such as
a Model 1L) when a supply gas pressures exceed 120 psig.
