General purpose regulators designed to reduce full cylinder pressure (maximum 3000 psi) down to very low working pressures (0.1 to 2 psi).

Applications

• Regulation of fuel supply to burners.
• Purging low pressure environmental chambers.
• Maintaining low pressure blankets of inert gas on fuel and chemical storage facilities. 

Design Features

• General purpose forged brass body
• 2-1/2” inlet and delivery pressure gauges
• Equipped with outlet needle valve
• Internal interstage relief valve set at 700-750 psi
• Porous metal filter protects seat from contamination
• 1/4” NPTM outlet connection with loose 1/4" hose barb

*Note: where CGA is replaced by the actual CGA number. Some CGA limitations may apply. (NI) for 1/4" FNPT inlet

Materials of Construction

• Gauges: Chrome plated brass
• Body: Chrome plated forged brass
• Bonnets: Chrome plated zinc diecast
• Diaphragms:  Neoprene
• Seats:  PTFE
• Seals: Neoprene/PTFE

Specifications

• Maximum Inlet Pressure: 3000 psi (20,700 kPa)
• Typical Max Flow Rate (1.5 psi del press): 20 SLPM
• Flow Capacity (Cv): 0.15
• Internal Interstage Relief Valve: 700-750 psi
• Operating Temperature: -20°F to 140°F (-29°C to 60°C)
• Porting (Regulator Body): 1/4” NPT Female
• Porting Configuration: 2 High, 2 Low

	Mounting Options
	53 Series Protocol Station This brass manifold is designed to provide a safe, reliable way of wall-mounting a cylinder regulator. Manifolds are provided a durable stainless steel bracket, stainless steel flex hose (3 ft std.), and a CGA connection with integral check valve.

Flow Curves

Flow Curves, 81-2 Series

Instructions

Instructions, Economy Regulator

Drawing

Drawing, 81-2

3D Model

81-2