MREG-4464-BA, Modified 18-590 Regulator – Brass

A general purpose regulator with rugged construction for use with non-corrosive gases with the following modifications:

1. Outlet valve installed in delivery gauge port

2. Delivery gauge shipped loose

Applications

• Use with gases that are 99.995% or lower purity
• Regulation of air supply to valves and actuators
• Inert gas supply for purging applications
• Calibration of pressure gauges, rotameters, and mass flowmeters
• Applications with high duty cycle/demanding operating conditions

Design Features

• Forged brass body
• Neoprene diaphragm
• 2” inlet and delivery pressure gauges
• Equipped with outlet needle valve
• 1/4” NPTM outlet connection with loose 1/4″ hose barb
• Porous metal filter to protect seat from contamination
• Model 18R uses Tee handle for pressure adjustment; all others use black knob shown

Materials of Construction

• Gauges: Brass, Painted steel covers
• Body: Forged brass
• Bonnet: Chrome plated brass
• Diaphragm: Neoprene
• Seat: PTFE Teflon
• Seals: Neoprene

Specifications

• Maximum Inlet Pressure: 3000 psig (20,700 kPa)
• Maximum Flow Rate (At 2000 psig, N2):
Model 18B: 900 CFH (425 LPM)
Model 18: 2000 CFH (944 LPM)
Model 18L: 4000 CFH (1890 LPM)
Model 18H: 5000 CFH (2360 LPM)
Model 18R: 5000 CFH (2360 LPM)
• Flow Capacity (Cv): 0.17 without outlet valve
• 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