3491A Series General Purpose Vacuum Line Regulator – Brass

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

• Economical brass body
• Neoprene diaphragm
• 3-1/2” delivery pressure gauge
• 1/4” NPTM inlet and outlet connections
• Porous metal filter protects seat from contamination
• Hose connection supplied as standard
• Rear inlet with bottom outlet for easy installation

Materials of Construction

• Gauge: Chrome plated brass
• Body: Brass
• Diaphragm: Neoprene
• Seat: Neoprene

Specifications

• Maximum Inlet Pressure: 350 psi*
• Inlet Fitting (Rear): 1/4″ MNPT
• Outlet Fitting (Bottom): 1/4″ MNPT (Hose barb included)
• Operating Temperature: -20°F to 140°F (-30°C to 60°C)
• Flow Capacity (Cv): 0.55

*Recommended minimum inlet pressure 20 psi to attain full delivery pressure range. Optimum inlet pressure 50 psi.
Note: Hose connection for outlet supplied as standard.