60295 H.B. SMITH 4 INCH HY-TEMP SEAL

60295 H.B. Smith 4" Hy-Temp Seal

For 28A and RTS Series Boilers

🔍 Product Overview

The H.B. Smith 60295 Hy-Temp Seal is a high-temperature, durable hydronic gasket designed for water and steam return connections in 28A and RTS series boilers.

This 4-inch L/N gasket ensures a secure, leak-free seal in demanding heating system environments. It’s compatible with both Mills 3500A water return components and Mills 6500A steam return components, providing a reliable solution for boiler maintenance and repairs.

🌟 Key Features

✅ Genuine H.B. Smith OEM replacement seal
✅ High-temperature resistant for water and steam applications
✅ 4" diameter gasket for precise fit
✅ Compatible with 28A and RTS series boilers
✅ Fits Mills 3500A and 6500A return components
✅ Ensures leak-free connections and long service life
✅ Easy to install, replaceable component

⚙️ Technical Specifications

⚠️ Common Symptoms of a Worn or Failed Seal

• Water or steam leakage at return connections

• Reduced boiler efficiency due to pressure loss

• Visible wear, cracking, or deformation of gasket

• Unusual boiler noises or steam hissing

❓ Frequently Asked Questions (FAQ)

Q1: What boilers is this seal compatible with?
➡️ Fits H.B. Smith 28A and RTS series boilers.

Q2: Can this gasket be used for both water and steam returns?
➡️ Yes — compatible with Mills 3500A water return and Mills 6500A steam return components.

Q3: What is the diameter of this Hy-Temp seal?
➡️ 4 inches.

Q4: How often should I replace the seal?
➡️ Inspect annually or during boiler maintenance. Replace if you notice leaks, cracks, or material degradation.

🛒 Shopping Tips

✅ Verify your boiler series (28A or RTS) before purchasing.
✅ Always use genuine H.B. Smith OEM seals for reliable performance.
✅ Inspect the return component surfaces before installing the gasket.
✅ Replace during scheduled maintenance to prevent leaks and downtime.