USG Model 496 Regulator

The USG Model 496 is a high-performance gas pressure regulator designed for reliable and consistent service in residential, light commercial, and small industrial gas systems. Its durable construction and large 4" roll-out diaphragm deliver exceptional capacity and precision control—features typically reserved for larger regulators. With multiple orifice and spring configurations available, the Model 496 is adaptable to a wide range of applications, including burners, furnaces, ovens, gas engines, and heating equipment.

Whether you need an angled or straight configuration, this general-purpose regulator comes standard with an internal relief valve and is engineered for flexible installation in any orientation.

Key Benefits

• Delivers precise pressure control for stable operation

• Large 4" diaphragm provides higher capacity in compact form

• Available in multiple outlet pressure ranges and body sizes

• Can be installed in any mounting position, including vertical and upside down

• Built-in internal relief valve provides added overpressure protection

Features

• Internal relief valve (standard on all models)

• Flexible mounting in any position

• Adjustable pressure settings with multiple spring options

• Straight and angled configurations available

• Optional 360° diaphragm case rotation in 90° increments

• Durable construction for long-term performance
   

Benefits

• Reliable service across residential and small commercial systems

• Minimizes maintenance downtime with easy installation and servicing

• Helps meet regulatory and performance requirements with integrated protection

• Reduces the need for larger diaphragm regulators in tight spaces

• Factory tested and field-proven performance

Capabilities

• Outlet pressure range: 5” WC to 2 psig across five spring selections

• Flow capacity: Configurable with various body sizes and orifice diameters

• Temperature range: -20°F to +150°F (-28.9°C to 65.5°C)

• Compatible with natural gas, propane, butane, CO₂, air, and nitrogen

• Not intended for buried service

Construction

• Body: Available in multiple outlet sizes (3/8", 1/2", 3/4", 1")

• Diaphragm: 4" roll-out diaphragm design

• Adjustable set point via top spring cap (requires 7/8” hex for orifice replacement)

• Venting: Equipped with internal relief valve; vent must be directed away from hazards

• Complies with applicable installation and overpressure protection codes