Armstrong International 811G Gasket

The Armstrong International 811G Gasket is a critical sealing component engineered for high-pressure steam trap maintenance within the TVS811 inverted bucket trap series. Designed to withstand the thermal cycling and high-velocity condensate flow inherent in modern HVAC steam systems, this gasket ensures a pressure-tight seal between the trap body and the cap. Formulated from high-grade graphite or reinforced synthetic fibers—depending on the specific 800 series trap revision—it prevents steam bypass and external leakage, maintaining system efficiency. Veteran technicians recognize that utilizing the correct Armstrong replacement gasket is essential for preserving the integrity of the integrated valve station. This component is compatible with inverted bucket steam traps rated for saturated steam applications, providing the necessary resilience against chemical additives and fluctuating pressures common in industrial piping. Proper installation of the 811G gasket minimizes downtime during routine steam trap repair and ensures reliable condensate drainage across the manifold.

• Precision Tolerance: Specifically die-cut to fit the Armstrong TVS811 housing, ensuring uniform compression and leak-proof performance.
• High Thermal Stability: Engineered to resist hardening and brittle failure when exposed to constant saturated steam temperatures.
• Steam Efficiency: Eliminates enthalpy loss by preventing steam leaks at the trap head, optimizing overall boiler system operation.
• Contractor Grade: Meets rigorous industrial standards for sealing inverted bucket traps in vertical or horizontal piping configurations.

How do I know if the 811G gasket fits my specific steam trap?
The 811G gasket is specifically designed for the Armstrong TVS811 series. Verify the model number on the trap nameplate; if the trap uses the 811 or TVS811 casting, this is the correct replacement seal.

Can I reuse the existing gasket during a trap inspection?
Standard HVACR protocols dictate that gaskets should be replaced whenever the trap body is opened. Reusing a compressed gasket often leads to steam leaks and potential erosion of the sealing surfaces.

What is the primary cause of gasket failure in 800 series traps?
Failure is typically caused by over-torquing the head bolts or extreme water hammer events. Utilizing the Armstrong 811G ensures the material can handle standard pressure spikes without blowout.

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.