Laars Heating Systems V2017500 O-Ring

For technicians servicing Laars commercial and residential boilers, the Laars Heating Systems V2017500 O-Ring is the spec-matching component required to maintain a gas-tight seal on the gas valve assembly. Precision-engineered with a 15/16" diameter and 3/32" width, this O-ring is critical for preventing bypass leaks and ensuring stable manifold pressure. When performing routine teardowns or replacing a faulty gas valve, reusing old seals is a risk no contractor should take; this OEM-grade part provides the elasticity and chemical resistance necessary to withstand the thermal cycling and pressure fluctuations common in high-efficiency Laars units.

This gas valve replacement part is compatible with a wide range of Laars equipment, including the Mighty Therm, Pennant, and Rheos series (specifically models such as the 399, 500, 750, 1000, 1250, 1500, 1750, and 2000). By integrating the Laars V2017500 into your maintenance kit, you ensure a professional-grade fit that meets the original manufacturer's safety tolerances for natural gas and propane applications.

Key Benefits

• Precision Tolerance: Standardized 15/16" x 3/32" dimensions ensure a seated fit within the gas valve flange to eliminate potential leak paths.
• Broad Compatibility: Engineered for use across the Laars boiler and water heater lineup, providing a versatile solution for diverse mechanical rooms.
• Industrial Durability: Constructed from high-performance elastomers designed to resist degradation from gas additives and high-temperature environments.
• Optimized Performance: Facilitates proper HVAC system diagnostics by ensuring the fuel delivery system remains pressurized and secure.

Common Questions

When should the V2017500 O-ring be replaced?
Standard field procedure dictates replacing the O-ring whenever the gas valve is uncoupled from the venturi or manifold. If you notice signs of brittleness, flattening, or "nicking" during a furnace maintenance inspection, replace it immediately to prevent hazardous gas leaks.

Is this O-ring compatible with both Natural Gas and Propane systems?
Yes, this component is designed to handle both fuel types within the specified Laars gas valve assemblies, maintaining its seal integrity regardless of the gas source.

Can I use a generic O-ring of the same size?
Using non-OEM parts in gas-fired equipment can lead to catastrophic failure or pressure drops. The V2017500 is specifically rated for the pressure and temperature variables found in Laars combustion chambers, unlike standard plumbing O-rings.

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.