Description
Norgas Controls and Metering B34SR-2 Internal Relief Valve Overview
The Norgas Controls and Metering B34SR-2 is a 2-inch Internal Relief Valve (IRV) engineered for reliable gas pressure regulation in commercial and industrial HVAC and combustion applications. Featuring a 5/8″ x 3/4″ orifice and a black spring calibrated for a 6–9″ water column (W.C.) pressure range, this valve delivers consistent, accurate downstream pressure control and built-in overpressure protection.
Key Features
- 2″ pipe size for high-capacity gas flow applications
- Internal Relief Valve (IRV) design provides integrated overpressure protection
- 5/8″ x 3/4″ orifice for optimized flow characteristics
- Black spring with a 6–9″ W.C. pressure setting range for precise regulation
- Designed for use with natural gas and LP gas systems
- Durable construction suitable for commercial and industrial environments
- Compact, integrated design simplifies installation and reduces piping complexity
Applications
- Commercial and industrial gas distribution systems
- Combustion equipment and burner trains
- HVAC gas pressure regulation assemblies
- Process heating and boiler applications
Specifications
- Brand: Norgas Controls and Metering
- SKU: B34SR-2
- Valve Type: Internal Relief Valve (IRV)
- Pipe Size: 2″
- Orifice Size: 5/8″ x 3/4″
- Spring Color: Black
- Spring Range: 6–9″ W.C.







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