Water Heater Pressure Relief Valve No name BOT model (MPN Czę000634)

Pressure relief valve for water heaters designed to automatically release excess pressure and protect domestic hot-water tanks from overpressure. This component fits into standard safety systems of boilers and storage tanks and opens at a predetermined pressure to prevent damage, leaks and unsafe operating conditions. It is intended for use during repair, replacement or routine maintenance of water heating systems.

Advantages

The valve provides a reliable mechanical response to abnormal pressure increases without requiring electrical power, ensuring passive safety for the boiler. Its compact design allows straightforward installation in tight spaces and compatibility with common plumbing connections. The device offers consistent opening pressure and fast pressure release to reduce stress on the tank and connected piping.

Suitable for

• Domestic hot-water tanks and residential boilers
• Repair and replacement of existing pressure relief devices
• Preventive maintenance and safety upgrades for heating systems

Key specifications

• Function: automatic pressure relief to protect against overpressure
• Application: potable hot-water systems and storage tanks
• Operating mechanism: mechanical spring-actuated relief
• Installation: inline mounting on water heater or tank discharge port
• Materials: corrosion-resistant metal components suitable for water contact

How to use

Shut off the water supply and isolate the heater before installation or replacement. Depressurize the tank by opening a hot-water tap, then remove the old relief valve if present. Install the new pressure relief valve according to the orientation and sealing requirements of the plumbing connection, using appropriate thread sealant or tape where required. After installation, restore water supply and check for leaks; verify correct operation by observing that the valve opens at the intended pressure during a controlled pressure test or system commissioning.

Usage recommendations

Inspect the valve periodically as part of routine maintenance and replace it if corrosion, leaking, or mechanical sticking is detected. Ensure compatibility with the heater’s rated pressure and local regulations; do not modify the valve or bypass it with alternative fittings. For safe and compliant installation, consider professional plumbing service if you are not experienced with water heater maintenance.