Lennox 57W93 - (R40086B007) Orifice (Green) 0.72 – Precision Gas Flow Control for High-Efficiency Lennox Furnaces
The Lennox 57W93 (R40086B007) Orifice is a critical component in gas-fired HVAC systems, specifically designed to provide accurate gas flow control to the burners. With a calibrated 0.72 orifice size, this green color-coded orifice ensures proper fuel metering for safe, efficient combustion across a range of Lennox heating systems.
Crafted from high-quality, corrosion-resistant brass, this OEM part guarantees consistent performance even under demanding temperature and pressure conditions. The 57W93 orifice is part of Lennox’s R40086B series, known for its reliability and compatibility with residential and light commercial units.
Product Specifications:
- Manufacturer: Lennox
- Part Number: 57W93
- Alternate/Model Number: R40086B007
- Component Type: Burner Orifice
- Orifice Size: 0.72
- Color Code: Green (for easy size identification)
- Material: Brass construction for enhanced durability
- Connection Type: Threaded
- Function: Regulates gas flow to ensure proper air-fuel mixture and safe burner ignition
- Compatibility: Used in various Lennox gas furnaces and heating systems
Applications:
This orifice is engineered for use in specific Lennox natural gas or propane furnace models, where precision gas delivery is essential to maintain optimal combustion efficiency and heat output. Whether performing a routine tune-up, burner conversion, or part replacement, the 57W93 provides peace of mind and OEM performance.
Benefits:
- Maintains correct BTU output and system efficiency
- Helps reduce emissions and fuel waste by ensuring ideal gas flow
- Easy installation with factory threading and color identification
- Trusted OEM quality to support long service life and reliability