An economical and compact regulator for use with non-corrosive gases in lecture bottles.

Applications

• Non-corrosive gases in lecture bottles

Design Features

• Forged brass body
• Neoprene diaphragm
• 1-1/2” inlet and delivery pressure gauges
• Equipped with needle valve
• 1/8” NPTM outlet connection
• Porous metal filter protects seat from contamination
• 1/4" Hose barb supplied for outlet

*Note: where CGA is replaced by the actual CGA number. Some CGA limitations may apply. (NI) for 1/8" FNPT inlet

Materials of Construction

• Gauges: Chrome plated brass
• Body: Brass barstock
• Bonnet: Chrome plated zinc diecast
• Diaphragm: Neoprene
• Seat: PTFE
• Seals: Neoprene
• Outlet Valve Body: Chrome plated forged brass
• Outlet Valve Packing: PTFE
• Outlet Valve Stem: Stainless steel
• Outlet Valve Seat: Brass

Specifications

• Maximum Inlet Pressure: 3000 psi (20,700 kPa)
• Typical Max Flow Rate (50 psi del press): 8 SCFM-N2 (225 SLPM)
• Flow Capacity (Cv): 0.15 (without needle valve)
• Operating Temperature: -20°F to 140°F (-29°C to 60°C)
• Porting (Regulator Body): 1/8” NPT Female
• Porting Configuration: 2 High, 2 Low

Flow Curves

Flow Curves, 3320B Series

Instructions

Instructions, Economy Regulator

Drawing

Drawing, 3320B

3D Model

3320