Armstrong Furnace R104519-02 Ball Valve
HomeStore

Armstrong Furnace R104519-02 Ball Valve

Armstrong Furnace R104519-02 Ball Valve

The Armstrong Furnace R104519-02 Ball Valve is a high-performance 7/8 inch service valve engineered for precision fluid regulation in residential and commercial HVAC systems. Constructed from heavy-duty brass, this genuine OEM replacement part provides superior corrosion resistance and durability for demanding heating and cooling applications. As the direct successor to legacy part numbers 77W34 and 77W3401, it ensures seamless compatibility and optimized refrigerant flow control. This quarter-turn valve is essential for maintaining system efficiency, preventing internal leakage, and stabilizing pressure drops within air handling units and chilled water systems. Whether you are performing a routine furnace repair or an emergency HVAC part replacement, the R104519-02 offers a reliable solution to restore peak operational performance. Its robust design is specifically tailored to meet the technical requirements of modern Armstrong Air and Lennox family equipment, facilitating easier installation and long-term serviceability for technicians.

Key Benefits:

  • Enhanced Durability: Forged from high-quality brass to withstand high-pressure environments.
  • Precision Control: Features a 7/8" connection size for accurate flow regulation and minimal pressure loss.
  • Direct OEM Fit: Specifically designed to replace 77W34 and 77W3401 without modifications.
  • Leak Prevention: High-integrity internal seals prevent refrigerant or fluid loss, increasing energy efficiency.
  • Versatile Application: Suitable for hydronic heating, chilled water, and various industrial piping systems.

Common Questions:

Is the R104519-02 compatible with other brands?
Yes, while it is an official Armstrong part, it often serves as a cross-reference for specific Lennox and AirEase configurations. Always verify your model number before installation.

When should I replace my furnace service valve?
Replacement is recommended if you notice visible leaks around the fittings, stiff handle operation, or inconsistent temperature regulation caused by flow restriction.

Does this valve come with installation hardware?
This item typically includes the ball valve assembly itself. We recommend checking your existing pipe threading and seals during the HVAC maintenance process.

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.

This item is not eligible for free shipping.

$81.13
Armstrong Furnace R104519-02 Ball Valve
$81.13

Armstrong Furnace R104519-02 Ball Valve

The Armstrong Furnace R104519-02 Ball Valve is a high-performance 7/8 inch service valve engineered for precision fluid regulation in residential and commercial HVAC systems. Constructed from heavy-duty brass, this genuine OEM replacement part provides superior corrosion resistance and durability for demanding heating and cooling applications. As the direct successor to legacy part numbers 77W34 and 77W3401, it ensures seamless compatibility and optimized refrigerant flow control. This quarter-turn valve is essential for maintaining system efficiency, preventing internal leakage, and stabilizing pressure drops within air handling units and chilled water systems. Whether you are performing a routine furnace repair or an emergency HVAC part replacement, the R104519-02 offers a reliable solution to restore peak operational performance. Its robust design is specifically tailored to meet the technical requirements of modern Armstrong Air and Lennox family equipment, facilitating easier installation and long-term serviceability for technicians.

Key Benefits:

  • Enhanced Durability: Forged from high-quality brass to withstand high-pressure environments.
  • Precision Control: Features a 7/8" connection size for accurate flow regulation and minimal pressure loss.
  • Direct OEM Fit: Specifically designed to replace 77W34 and 77W3401 without modifications.
  • Leak Prevention: High-integrity internal seals prevent refrigerant or fluid loss, increasing energy efficiency.
  • Versatile Application: Suitable for hydronic heating, chilled water, and various industrial piping systems.

Common Questions:

Is the R104519-02 compatible with other brands?
Yes, while it is an official Armstrong part, it often serves as a cross-reference for specific Lennox and AirEase configurations. Always verify your model number before installation.

When should I replace my furnace service valve?
Replacement is recommended if you notice visible leaks around the fittings, stiff handle operation, or inconsistent temperature regulation caused by flow restriction.

Does this valve come with installation hardware?
This item typically includes the ball valve assembly itself. We recommend checking your existing pipe threading and seals during the HVAC maintenance process.

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.

This item is not eligible for free shipping.

Product Information

Shipping & Returns

Description

The Armstrong Furnace R104519-02 Ball Valve is a high-performance 7/8 inch service valve engineered for precision fluid regulation in residential and commercial HVAC systems. Constructed from heavy-duty brass, this genuine OEM replacement part provides superior corrosion resistance and durability for demanding heating and cooling applications. As the direct successor to legacy part numbers 77W34 and 77W3401, it ensures seamless compatibility and optimized refrigerant flow control. This quarter-turn valve is essential for maintaining system efficiency, preventing internal leakage, and stabilizing pressure drops within air handling units and chilled water systems. Whether you are performing a routine furnace repair or an emergency HVAC part replacement, the R104519-02 offers a reliable solution to restore peak operational performance. Its robust design is specifically tailored to meet the technical requirements of modern Armstrong Air and Lennox family equipment, facilitating easier installation and long-term serviceability for technicians.

Key Benefits:

  • Enhanced Durability: Forged from high-quality brass to withstand high-pressure environments.
  • Precision Control: Features a 7/8" connection size for accurate flow regulation and minimal pressure loss.
  • Direct OEM Fit: Specifically designed to replace 77W34 and 77W3401 without modifications.
  • Leak Prevention: High-integrity internal seals prevent refrigerant or fluid loss, increasing energy efficiency.
  • Versatile Application: Suitable for hydronic heating, chilled water, and various industrial piping systems.

Common Questions:

Is the R104519-02 compatible with other brands?
Yes, while it is an official Armstrong part, it often serves as a cross-reference for specific Lennox and AirEase configurations. Always verify your model number before installation.

When should I replace my furnace service valve?
Replacement is recommended if you notice visible leaks around the fittings, stiff handle operation, or inconsistent temperature regulation caused by flow restriction.

Does this valve come with installation hardware?
This item typically includes the ball valve assembly itself. We recommend checking your existing pipe threading and seals during the HVAC maintenance process.

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.

This item is not eligible for free shipping.

Armstrong Furnace R104519-02 Ball Valve | GSIstore