Lennox 81M58 Expansion Valve
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Lennox 81M58 Expansion Valve

Lennox 81M58 Expansion Valve

The Lennox 81M58 Expansion Valve is a high-capacity 11-ton thermostatic expansion valve (TXV) designed for precision refrigerant metering in commercial HVAC and industrial refrigeration systems. Engineered with a durable brass body and stainless steel internal components, this direct replacement HVAC expansion valve provides superior resistance to corrosion and mechanical wear in demanding environments. It features a 100 MOP (Maximum Operating Pressure) setting, a 5/8-inch inlet, and a 7/8-inch outlet connection, ensuring a high-flow interface for large-scale evaporative coils.

As a veteran-grade OEM Lennox 81M58 component, this valve utilizes an adjustable expansion mechanism to maintain a stable superheat level, which is critical for protecting compressors from liquid slugging while maximizing heat transfer efficiency. Whether you are servicing food processing facilities, cold storage units, or high-tonnage rooftop units, this 11-ton TXV delivers the responsive refrigerant control necessary to stabilize system pressures during fluctuating thermal loads. The compact design facilitates easier installation for technicians working in tight mechanical cabinets or space-constrained evaporators.

Key Benefits for Technicians
  • Optimized Refrigerant Flow: Features an 11-ton nominal capacity to handle high-demand commercial cooling cycles without hunting.
  • Durable Construction: Built with a brass body and high-grade stainless steel internals for long-term reliability in corrosive conditions.
  • Standardized Connections: Equipped with a 5/8" inlet and 7/8" outlet to match existing line sets in Lennox commercial units.
  • Superheat Stability: The adjustable expansion mechanism allows for fine-tuning at the evaporator to ensure peak energy efficiency and compressor protection.
Common Questions & Tech Support

How do I confirm the 81M58 is the correct replacement for my unit?
Verify the tonnage and connection sizes on your existing valve. This 11-ton thermal expansion valve is specifically designed for Lennox 81M58 applications and typically replaces part number 163400-003.

Does this valve support R-410A refrigeration systems?
Yes, this Lennox TXV is compatible with standard HVAC refrigerants used in 11-ton commercial air conditioning and heat pump systems requiring balanced port performance.

Is the superheat setting adjustable on this model?
Yes, the Lennox 81M58 includes an adjustable expansion mechanism, allowing field technicians to calibrate the superheat to specific manufacturer requirements for the coil and ambient conditions.

This item is not eligible for free shipping.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

$129.99

Original: $371.41

-65%
Lennox 81M58 Expansion Valve

$371.41

$129.99

Lennox 81M58 Expansion Valve

The Lennox 81M58 Expansion Valve is a high-capacity 11-ton thermostatic expansion valve (TXV) designed for precision refrigerant metering in commercial HVAC and industrial refrigeration systems. Engineered with a durable brass body and stainless steel internal components, this direct replacement HVAC expansion valve provides superior resistance to corrosion and mechanical wear in demanding environments. It features a 100 MOP (Maximum Operating Pressure) setting, a 5/8-inch inlet, and a 7/8-inch outlet connection, ensuring a high-flow interface for large-scale evaporative coils.

As a veteran-grade OEM Lennox 81M58 component, this valve utilizes an adjustable expansion mechanism to maintain a stable superheat level, which is critical for protecting compressors from liquid slugging while maximizing heat transfer efficiency. Whether you are servicing food processing facilities, cold storage units, or high-tonnage rooftop units, this 11-ton TXV delivers the responsive refrigerant control necessary to stabilize system pressures during fluctuating thermal loads. The compact design facilitates easier installation for technicians working in tight mechanical cabinets or space-constrained evaporators.

Key Benefits for Technicians
  • Optimized Refrigerant Flow: Features an 11-ton nominal capacity to handle high-demand commercial cooling cycles without hunting.
  • Durable Construction: Built with a brass body and high-grade stainless steel internals for long-term reliability in corrosive conditions.
  • Standardized Connections: Equipped with a 5/8" inlet and 7/8" outlet to match existing line sets in Lennox commercial units.
  • Superheat Stability: The adjustable expansion mechanism allows for fine-tuning at the evaporator to ensure peak energy efficiency and compressor protection.
Common Questions & Tech Support

How do I confirm the 81M58 is the correct replacement for my unit?
Verify the tonnage and connection sizes on your existing valve. This 11-ton thermal expansion valve is specifically designed for Lennox 81M58 applications and typically replaces part number 163400-003.

Does this valve support R-410A refrigeration systems?
Yes, this Lennox TXV is compatible with standard HVAC refrigerants used in 11-ton commercial air conditioning and heat pump systems requiring balanced port performance.

Is the superheat setting adjustable on this model?
Yes, the Lennox 81M58 includes an adjustable expansion mechanism, allowing field technicians to calibrate the superheat to specific manufacturer requirements for the coil and ambient conditions.

This item is not eligible for free shipping.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

Product Information

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Description

The Lennox 81M58 Expansion Valve is a high-capacity 11-ton thermostatic expansion valve (TXV) designed for precision refrigerant metering in commercial HVAC and industrial refrigeration systems. Engineered with a durable brass body and stainless steel internal components, this direct replacement HVAC expansion valve provides superior resistance to corrosion and mechanical wear in demanding environments. It features a 100 MOP (Maximum Operating Pressure) setting, a 5/8-inch inlet, and a 7/8-inch outlet connection, ensuring a high-flow interface for large-scale evaporative coils.

As a veteran-grade OEM Lennox 81M58 component, this valve utilizes an adjustable expansion mechanism to maintain a stable superheat level, which is critical for protecting compressors from liquid slugging while maximizing heat transfer efficiency. Whether you are servicing food processing facilities, cold storage units, or high-tonnage rooftop units, this 11-ton TXV delivers the responsive refrigerant control necessary to stabilize system pressures during fluctuating thermal loads. The compact design facilitates easier installation for technicians working in tight mechanical cabinets or space-constrained evaporators.

Key Benefits for Technicians
  • Optimized Refrigerant Flow: Features an 11-ton nominal capacity to handle high-demand commercial cooling cycles without hunting.
  • Durable Construction: Built with a brass body and high-grade stainless steel internals for long-term reliability in corrosive conditions.
  • Standardized Connections: Equipped with a 5/8" inlet and 7/8" outlet to match existing line sets in Lennox commercial units.
  • Superheat Stability: The adjustable expansion mechanism allows for fine-tuning at the evaporator to ensure peak energy efficiency and compressor protection.
Common Questions & Tech Support

How do I confirm the 81M58 is the correct replacement for my unit?
Verify the tonnage and connection sizes on your existing valve. This 11-ton thermal expansion valve is specifically designed for Lennox 81M58 applications and typically replaces part number 163400-003.

Does this valve support R-410A refrigeration systems?
Yes, this Lennox TXV is compatible with standard HVAC refrigerants used in 11-ton commercial air conditioning and heat pump systems requiring balanced port performance.

Is the superheat setting adjustable on this model?
Yes, the Lennox 81M58 includes an adjustable expansion mechanism, allowing field technicians to calibrate the superheat to specific manufacturer requirements for the coil and ambient conditions.

This item is not eligible for free shipping.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.