ROOTS B34S Series Regulator (Former Itron B34S)
The ROOTS B34S Series regulator represents the next evolution of Itron’s respected gas regulator technology. Following Dresser Utility Solutions’ acquisition of Itron’s global gas regulator business, these proven products continue their legacy of innovation under the ROOTS brand name in North America.
This medium-duty commercial and industrial regulator is spring-loaded and self-operated, available with or without internal relief. The B34S combines the B31 8″ diaphragm case with the B34 valve assembly, creating an economical solution for mid-range commercial and industrial applications where consistent gas pressure is crucial.
The rapid response of the B34S makes it particularly well-suited for mid-range applications where quick on/off loads can cause shock problems. Its design incorporates an adjustable loading ring for controlled boost at high flows and a precision breather opening that ensures proper stability under all conditions.
For customers familiar with the Itron B34S, rest assured that the ROOTS B34S maintains the same high standards of quality and performance you’ve come to expect, just under a new brand name.
B34S Key Features
- 27 in² of diaphragm area with molded Buna-N and nylon construction
- Interchangeable brass orifice for precise flow control
- Stainless steel lever pin and alodined aluminum valve stem for durability
- Zinc with dichromate-plated steel lever for corrosion resistance
- Controlled size breather orifice eliminates pulsation
- Wide range of valve body sizes, including NPT and flange connections
- Field interchangeable adjustment springs for versatile pressure ranges
- Available vent sizes: 1/4", 3/8", 3/4", and 1"
- Operating temperature range: -20°F to 150°F (-29°C to 66°C)
Benefits
- ANSI Z21.80/CSA 6.22 Certified for regulatory compliance
- Economical Solution for mid-range applications
- Protection Against Shock Damage in quick on/off load scenarios
- Space-Saving Design compared to other regulators in its class
- Commercial Performance in a compact package
- Critical Components Made of Steel/Aluminum (not plastic) for enhanced reliability
- Multiple Configuration Options to meet specific application requirements
- Silicone Valve Seats Available for applications below -20°F
B34S Model Options
- B34SN: Spring-loaded, self-operated regulator with no internal relief
- B34SR: Internal relief version featuring a relief valve with a 1" vent
Performance Specifications
- Maximum Operating Inlet Pressure: Varies by orifice size (up to 125 PSIG)
- Outlet Pressure Ranges: From 3.5" w.c. to 2.5 PSIG depending on spring selection
- Flow Capacity: Up to 7,500 SCFH (dependent on configuration)
- Vent Sizes: 1/4", 3/8", 3/4", and 1"
Available Valve Body Sizes
- Screwed Connections: 1-1/4", 1-1/2", and 2" NPT
- Flanged Connections: 2" and 3"
Physical Dimensions
- Overall Height: Approximately 7-13/16" (varies by model)
- Body Width: From 4-1/2" to 5-1/2" (varies by connection size)
Downloads
Applications
The ROOTS B34S Series regulator is designed for a wide range of commercial and industrial applications where reliable pressure regulation is essential:
- Gas Engines: Provides stable pressure for consistent engine performance
- Burners: Ensures precise gas delivery for efficient combustion
- Furnaces: Maintains optimal pressure for heating applications
- Boilers: Delivers consistent gas flow for steam and hot water production
- Commercial Buildings: Regulates gas pressure for multi-unit facilities
- Industrial Processing: Controls gas pressure for manufacturing operations
- Mid-Range Applications: Particularly effective where quick on/off loads cause shock problems
The B34S excels in applications requiring rapid response to pressure changes, making it ideal for equipment with intermittent operational cycles.
