General purpose regulators constructed for use with non-corrosive gases.

Applications

• Calibration of pressure gauges, rotameters, and mass flow controllers
• General purpose applications where a constant delivery pressure is required
• Applications with high duty cycle/demanding operating conditions

Design Features

• Chrome plated brass body
• Neoprene diaphragms (1st and 2nd stages)
• 2-1/2” inlet and delivery pressure gauges
• Equipped with outlet needle valve
• 1/4” NPTM outlet connection with loose 1/4" hose barb
• Internal interstage relief valve set at 800 psi
• One-piece encapsulated seat with (10µ) internal fitter to protect against contamination

Materials of Construction

• Gauges: Chrome plated brass
• Body: Chrome plated forged brass
• Bonnets: Chrome plated zinc die cast
• Diaphragms – neoprene
• Seats: PTFE
• Seals: Neoprene 

Specifications

• Maximum Inlet Pressure: 3000 psi (20,700 kPa)
• Typical Max Flow Rate (100 psi del press): 4 SCFM-N2 (110 SLPM)
• Flow Capacity (Cv): 0.15
• Internal Interstage Relief Valve: 800 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, 1 Interstage

	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 Series

Instructions

Instructions, Economy Regulator

Drawing

Drawing, 81