Gas Regulators

Gas regulators help manage gas flow and pressure for heating equipment and compatible fuel-gas systems. This category includes regulators for main burners, pilot loads, boilers, steam generators, furnaces, ovens, and other commercial or industrial equipment, along with replacement springs and vent-related components for regulator maintenance.

Product Display:
Helpful Buying Guide

Gas Regulator Buying Guide

Choose a gas regulator or related component by first identifying the equipment application, compatible regulator series or model, and the flow, pressure, and connection requirements stated for the installation. The products represented here range from small-flow poppet regulators to high-capacity straight-through regulators, appliance regulators, gas line regulators, and service components.

Visual Guide

Popular examples in this category

1/4 in. Poppet-Type Gas Regulator, Up to 65,000 BTU1/4 in. Poppet-Type Gas Regulator, Up to 65,000 BTUWBB859590Outdoor Vent Protector for 325-3 Series RegulatorsOutdoor Vent Protector for 325-3 Series RegulatorsWBB8596742-1/2 in. Straight-Through Gas Regulator, 7,500,000 BTU2-1/2 in. Straight-Through Gas Regulator, 7,500,000 BTUWBB859676Plated Spring for 325-5 Series Gas RegulatorsPlated Spring for 325-5 Series Gas RegulatorsWBB859639
Use Cases

Match the regulator to the equipment load

Poppet-style regulators support precise control of very small flows for burner and pilot applications. Straight-through designs are intended for high-capacity main burner systems, while gas appliance regulators support gas-fired boilers, steam generators, furnaces, ovens, and similar equipment.

How to Choose

Compare capacity, connection, and operating design

Review the stated BTU capacity, connection size, pressure design, and whether downstream controls are designed to operate at line pressure. For replacement components, confirm the exact compatible regulator series or model before ordering.

Applications

Consider indoor, outdoor, and maintenance needs

Some gas line regulators include outdoor corrosion protection. Outdoor vent protectors help cover compatible regulator breather holes from rain, snow, foreign particles, and insects, while vent limiting devices and springs support compatible regulator setups and service work.

Additional Information

Use identifying details for accurate parts selection

Color, finish, spring designation, package quantity, and compatibility references can help distinguish replacement parts. Certain springs are supplied as single units and have stated USA-made country-of-origin information.

65,000 BTUSmall-flow capacity

Stated capacity for one 1/4 in. poppet regulator.

7,500,000 BTUHigh-capacity flow

Stated capacity for one 2-1/2 in. straight-through regulator.

1/4 in. to 2-1/2 in.Listed connection sizes

Connection sizes represented among the regulator options.

Single unitReplacement parts

Several springs and vent components are packaged individually.

Comparison Guide

Compare Gas Regulator Product Types

Use the product type and stated application details to narrow the selection.

Product typeBest represented useKey selection factors
Poppet gas regulatorPrecise small-flow control for main burner and pilot loadsCompare connection size, stated BTU capacity, rubber-seat design, and listed gas compatibility.
Straight-through gas regulatorHigh-capacity main burner systems at low inlet pressureCompare BTU capacity, connection size, pressure design, and whether downstream controls operate at line pressure.
Regulator components and vent accessoriesMaintenance or setup for compatible regulator installationsConfirm the exact regulator series or model, component type, orientation where stated, and identifying color or finish.
Planning Guide

Plan the right fit before choosing

Start with the regulator type

Select a design suited to the gas-flow requirement

The category includes several regulator configurations for different heating applications.

  • Choose poppet-type regulators for precise control of very small gas flows for main burner and pilot loads.
  • Choose straight-through regulators for high-capacity main burner gas flow at low inlet pressures where downstream controls can operate at line pressure.
  • Choose a gas appliance regulator for controlled operation of high-demand gas-fired equipment.
  • Choose a gas line regulator when the application requires gas regulation from pounds to inches and operation from full flow down to pilot flow.
Confirm installation requirements

Compare the stated capacity and system details

Capacity and connection information vary by product, so compare the product details to the compatible installation requirements.

  • Available stated capacities range from up to 65,000 BTU for a 1/4 in. poppet regulator to up to 7,500,000 BTU for a 2-1/2 in. straight-through regulator.
  • Listed connection sizes include 1/4 in., 3/4 in., 1-1/4 in., and 2-1/2 in.
  • A 1-1/4 in. straight-through regulator is described with a 1/2 psi rated pressure design.
  • Some regulators are listed for natural, manufactured, mixed, liquefied petroleum, and LP gas-air mixture systems.
Plan for service and protection

Identify compatible regulator components

Maintenance parts and vent accessories should be selected by their stated compatibility and intended purpose.

  • Vent protectors and automatic vent limiting devices are designated for 325-3 Series regulators.
  • A plated spring is designated for 325-5 Series regulators, while a violet spring is designated for RV325-7 Series regulators.
  • A black 20-42 spring is listed for compatible 325-7, RV81, and 210D models.
  • A blue replacement spring is listed for RV111 and 210G regulators.
FAQ

Common questions before buying

What is the difference between a poppet and straight-through gas regulator?

Poppet regulators are described for precise control of very small flows for burner and pilot loads. Straight-through regulators are described for high-capacity main burner gas flow at low inlet pressures.

How do I choose a gas regulator capacity?

Compare the equipment requirement with the product's stated BTU capacity. Represented options range from up to 65,000 BTU to up to 7,500,000 BTU.

Are replacement springs interchangeable between regulators?

No. Springs are identified for specific compatible series or models, such as 325-5, RV325-7, 325-7, RV81, 210D, RV111, and 210G.

What does an outdoor vent protector do?

For compatible 325-3 Series regulators, it covers the breather hole to help keep out rain, snow, foreign particles, and insects. It is intended for upright installation.

Helpful Buying Guide

Gas Regulator Buying Guide

Choose a gas regulator or related component by first identifying the equipment application, compatible regulator series or model, and the flow, pressure, and connection requirements stated for the installation. The products represented here range from small-flow poppet regulators to high-capacity straight-through regulators, appliance regulators, gas line regulators, and service components.

Visual Guide

Popular examples in this category

1/4 in. Poppet-Type Gas Regulator, Up to 65,000 BTU1/4 in. Poppet-Type Gas Regulator, Up to 65,000 BTUWBB859590Outdoor Vent Protector for 325-3 Series RegulatorsOutdoor Vent Protector for 325-3 Series RegulatorsWBB8596742-1/2 in. Straight-Through Gas Regulator, 7,500,000 BTU2-1/2 in. Straight-Through Gas Regulator, 7,500,000 BTUWBB859676Plated Spring for 325-5 Series Gas RegulatorsPlated Spring for 325-5 Series Gas RegulatorsWBB859639
Use Cases

Match the regulator to the equipment load

Poppet-style regulators support precise control of very small flows for burner and pilot applications. Straight-through designs are intended for high-capacity main burner systems, while gas appliance regulators support gas-fired boilers, steam generators, furnaces, ovens, and similar equipment.

How to Choose

Compare capacity, connection, and operating design

Review the stated BTU capacity, connection size, pressure design, and whether downstream controls are designed to operate at line pressure. For replacement components, confirm the exact compatible regulator series or model before ordering.

Applications

Consider indoor, outdoor, and maintenance needs

Some gas line regulators include outdoor corrosion protection. Outdoor vent protectors help cover compatible regulator breather holes from rain, snow, foreign particles, and insects, while vent limiting devices and springs support compatible regulator setups and service work.

Additional Information

Use identifying details for accurate parts selection

Color, finish, spring designation, package quantity, and compatibility references can help distinguish replacement parts. Certain springs are supplied as single units and have stated USA-made country-of-origin information.

65,000 BTUSmall-flow capacity

Stated capacity for one 1/4 in. poppet regulator.

7,500,000 BTUHigh-capacity flow

Stated capacity for one 2-1/2 in. straight-through regulator.

1/4 in. to 2-1/2 in.Listed connection sizes

Connection sizes represented among the regulator options.

Single unitReplacement parts

Several springs and vent components are packaged individually.

Comparison Guide

Compare Gas Regulator Product Types

Use the product type and stated application details to narrow the selection.

Product typeBest represented useKey selection factors
Poppet gas regulatorPrecise small-flow control for main burner and pilot loadsCompare connection size, stated BTU capacity, rubber-seat design, and listed gas compatibility.
Straight-through gas regulatorHigh-capacity main burner systems at low inlet pressureCompare BTU capacity, connection size, pressure design, and whether downstream controls operate at line pressure.
Regulator components and vent accessoriesMaintenance or setup for compatible regulator installationsConfirm the exact regulator series or model, component type, orientation where stated, and identifying color or finish.
Planning Guide

Plan the right fit before choosing

Start with the regulator type

Select a design suited to the gas-flow requirement

The category includes several regulator configurations for different heating applications.

  • Choose poppet-type regulators for precise control of very small gas flows for main burner and pilot loads.
  • Choose straight-through regulators for high-capacity main burner gas flow at low inlet pressures where downstream controls can operate at line pressure.
  • Choose a gas appliance regulator for controlled operation of high-demand gas-fired equipment.
  • Choose a gas line regulator when the application requires gas regulation from pounds to inches and operation from full flow down to pilot flow.
Confirm installation requirements

Compare the stated capacity and system details

Capacity and connection information vary by product, so compare the product details to the compatible installation requirements.

  • Available stated capacities range from up to 65,000 BTU for a 1/4 in. poppet regulator to up to 7,500,000 BTU for a 2-1/2 in. straight-through regulator.
  • Listed connection sizes include 1/4 in., 3/4 in., 1-1/4 in., and 2-1/2 in.
  • A 1-1/4 in. straight-through regulator is described with a 1/2 psi rated pressure design.
  • Some regulators are listed for natural, manufactured, mixed, liquefied petroleum, and LP gas-air mixture systems.
Plan for service and protection

Identify compatible regulator components

Maintenance parts and vent accessories should be selected by their stated compatibility and intended purpose.

  • Vent protectors and automatic vent limiting devices are designated for 325-3 Series regulators.
  • A plated spring is designated for 325-5 Series regulators, while a violet spring is designated for RV325-7 Series regulators.
  • A black 20-42 spring is listed for compatible 325-7, RV81, and 210D models.
  • A blue replacement spring is listed for RV111 and 210G regulators.
FAQ

Common questions before buying

What is the difference between a poppet and straight-through gas regulator?

Poppet regulators are described for precise control of very small flows for burner and pilot loads. Straight-through regulators are described for high-capacity main burner gas flow at low inlet pressures.

How do I choose a gas regulator capacity?

Compare the equipment requirement with the product's stated BTU capacity. Represented options range from up to 65,000 BTU to up to 7,500,000 BTU.

Are replacement springs interchangeable between regulators?

No. Springs are identified for specific compatible series or models, such as 325-5, RV325-7, 325-7, RV81, 210D, RV111, and 210G.

What does an outdoor vent protector do?

For compatible 325-3 Series regulators, it covers the breather hole to help keep out rain, snow, foreign particles, and insects. It is intended for upright installation.

!