Conbraco 20-002-03 Viton Gaskets

Integrating Conbraco 20-002-03 Viton Gaskets into your boiler trim or liquid level systems ensures superior resistance in demanding high-temperature environments. These heavy-duty gauge glass washers are specifically engineered from FKM fluoropolymer elastomer, providing a high-performance seal for Apollo water gauges where standard EPDM or Hypalon components would fail. Designed to withstand temperatures from -15°F up to 400°F—and capable of handling excursions to 600°F for short durations—these Viton gaskets are the professional choice for petroleum-based oils, acids, and halogenated hydrocarbons. When replacing a Conbraco water gauge repair kit, using these gaskets maintains the structural integrity of the gauge assembly, preventing nuisance leaks in industrial process lines. As a veteran-grade liquid level gauge gasket, the 20-002-03 provides the chemical stability required for severe service, though it is not recommended for steam-saturated applications where graphite or EPDM may be preferred. Ensure proper torque on gland nuts to seat these boiler sight glass seals without damaging the tubular glass.

• Superior Chemical Resistance: Engineered for petroleum oils, silicone fluids, and various acids where standard elastomers degrade.
• Extended Temperature Range: Rated for continuous operation up to 400°F, ensuring reliability in high-heat industrial boiler rooms.
• Precision Fit: Specifically designed for 5/8" or 3/4" glass diameters (depending on valve series) to ensure a 100% leak-proof seal.
• FKM Durability: Reduced compression set compared to thinner gaskets, maintaining elastic memory under cycling pressures.

Are these Viton gaskets compatible with high-pressure steam?
Technically, Viton is optimized for chemical and petroleum service. For standard steam applications up to 350°F, EPDM is often the preferred choice, whereas Graphite is recommended for high-pressure steam exceeding those ratings.

What Conbraco series do these gaskets fit?
These gaskets are standard for the 20-series and 24-series liquid level gauges but should be verified against your specific model number to ensure the outer diameter (OD) matches the valve body pocket.

When should I choose Viton over Teflon (PTFE)?
Viton is significantly easier to seal than rigid Teflon. If your media is compatible with FKM, it provides a much more forgiving seal on older or slightly pitted valve seats while offering comparable chemical resistance to oils.

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.