Conbraco D-3157-00 Gasket

For veteran contractors maintaining steam, hydronic, or industrial fluid systems, the Conbraco D-3157-00 Black Gasket is a critical component for ensuring a zero-leak seal. Specifically engineered for use in Apollo Valves and gauge glass assemblies, this EPDM rubber gasket (also known as a gauge glass washer) provides the necessary resilience to withstand fluctuating pressures and temperatures. With precise dimensions of approximately .920" OD x .625" ID x .445" T, this OEM replacement gasket fits 20 and 22 series water gauges, offering a consistent sealing surface that protects instrumentation equipment from bypass leaks. When performing routine maintenance on boiler sight glasses or low-pressure steam valves, using a genuine Conbraco D315700 prevents the integrity issues often associated with generic alternatives. This high-performance elastomer gasket ensures proper fit and function, keeping your industrial or residential HVACR systems operating at peak efficiency without the risk of premature seal failure.

• Precision Dimensions: Designed as a .920 OD gauge glass washer for a perfect mechanical fit in Conbraco/Apollo assemblies.
• Durable Material: Constructed from high-quality EPDM rubber for excellent resistance to water, steam, and mild chemicals.
• System Security: Maintains measurement integrity by preventing leaks in water gauge sets and instrumentation equipment.
• Industrial Standard: Factory-authorized D-3157-00 part ensures compatibility with 20/22 series equipment.

• What systems use the Conbraco D-3157-00? It is primarily utilized in boiler water gauge glasses, liquid level gauges, and specific valve instrumentation where a 5/8" or similar glass mounting is present.
• Is this gasket compatible with high-pressure steam? This black rubber gasket is optimized for standard hydronic and steam applications typical of the Apollo 20/22 series; always verify your specific system's PSI rating against OEM specs.
• Can I use this for oil-based applications? While EPDM is excellent for water and steam, it is generally not recommended for petroleum-based fluids; check your technical manual for chemical compatibility.

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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.