Overview
The Honeywell V51E 1000 is a butterfly-type firing rate valve engineered for precise variable flow control of natural gas, liquefied petroleum (LP), and manufactured gases. This valve is also suitable for air flow control applications. With aluminum body construction and a maximum inlet pressure rating of 5 PSI, the V51E 1000 delivers reliable performance in commercial and industrial combustion control systems where large gas capacities require close modulation.
Key Features
- Butterfly valve design with high capacity and constant flow-rate relationship
- Firing rate valve for variable flow modulation—not applicable as safety shutoff valve
- Strain release valve mechanism for safe operation
- Adjustable stroke over low fire–high fire range
- Straight-through valve pattern for minimal pressure drop
- Modutrol motor compatible (M9484, M9494, and similar Modutrol units)
- Q100 linkage standard for motor coupling
Technical Specifications
- Maximum Inlet Pressure: 5 PSI
- Body Material: Aluminum
- Valve Type: Butterfly firing rate valve
- Valve Pattern: Straight-through
- Weight: 1.140 kg (approx. 2.51 lbs)
- Available Sizes: 1-1/2″, 2″, 2-1/2″, 3″, 4″ (V51E 1000 standard port)
- Applicable Gases: Natural gas, liquefied petroleum (LP), manufactured gases, air
- Motor Compatibility: Honeywell Modutrol motors (M9484, M9494 series)
Typical Applications
- Commercial HVAC combustion control and modulating heating systems
- Industrial burner management and firing rate control
- Gas-fired boiler and furnace modulation
- Manufacturing plant fuel gas distribution
- Large-capacity gas control requiring close operational tolerance
Compatibility & Replacements
Compatible With
- Honeywell Modutrol motors (M9484, M9494, M94 series)
- Q100 and Q100B linkage assemblies
- Honeywell control systems and firing rate modules
- Natural gas, LP, and manufactured gas supply lines
- HVAC and industrial combustion systems rated for 5 PSI inlet
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The V51E 1000 is a specific model variant; confirm your current valve part number with Honeywell technical documentation to ensure direct replacement compatibility.
Works With
- Honeywell Modutrol M9 series actuators
- Strain relief mechanisms and linkage assemblies (Q100B1006 and similar)
- Honeywell combustion management control modules
- Standard ductile-iron piping and aluminum manifold mounting systems
