Radiator valve threads are subjected to medium hot water or steam pressure and continuous, aggressive thermal cycling. The seal must be robust to prevent leaks, but the valve often needs to be removed or replaced for system balancing, repair, or radiator removal. This demands a sealant that provides a secure, leak-proof bond with Medium Strength, allowing for future non-destructive disassembly.
INCURE ProGrip™ 206 Medium Strength Thread Sealant
The INCURE ProGrip™ 206 Thread Sealant is the ideal solution. It is specifically formulated for high-pressure pipes, providing the necessary strength and high-temperature resistance while ensuring the joint remains serviceable for heating system maintenance.
| Key Feature | Performance for Radiator Valve Threads |
| Medium Strength (Yellow) | Provides a secure, pressure-tight seal that resists loosening from thermal cycling but still allows for disassembly with standard hand tools when valve replacement is necessary. |
| High Temperature Range | With a temperature range of up to 150∘C (302∘F), it safely handles the operational heat of hot water or low-pressure steam heating systems. |
| Max Pressure Rating | Seals against high pressures (up to 69 MPa or 10,000 psi), ensuring the lines remain leak-free. |
| Low Viscosity | Ensures easy application and penetration into threads, creating a complete hydraulic seal. |
Application Steps: Sealing Radiator Valve Threads
For maximum reliability and a serviceable joint, follow these steps:
- Preparation: Clean both the male and female threads thoroughly to remove all old sealant, pipe dope, and contaminants. Use an appropriate cleaner and wipe dry.
- Application: Apply a continuous, thin bead of ProGrip™ 206 around the male thread, skipping the first thread. Ensure full coverage over the engaged threads.
- Assembly: Immediately thread the valve into the radiator port or supply line and tighten to the specified torque.
- Curing: Allow the sealant to cure for a minimum of 24 hours to reach full strength before repressurizing the heating system and introducing heat.