Hot Water Tempering Valve Adjustment

In the late 90 s regulators decided to make fitting tempering valves on new or replacement hot water systems mandatory.

Hot water tempering valve adjustment.

Hot water tempering valve adjustment is done to comply with tempering valve regulations. This was a great idea as it helped to stop kids from being scalded by hot water. A hot water tempering valve can be adjusted by 2 inlet mixing through which water temperature is moderated by mixing cold water and hot water. As a starting point the cylinder fills up with cold water.

Unbeatable prices with unmatched services 0800 429 546. The standards state that in order to avoid scalding hot water must be set at a particular safe temperature and includes aspects such as. Because some types of bacteria breed in warm water that is temperatures below 60ºc. We repair sell and install hot water cylinders new zealand wide.

A hot water mixing valve or hot water tempering valve is a safety device that mixes cold water with the hot water to help prevent scalding. The valve works by blending the hot and cold water at a ratio that is adjustable and then being piped to the bathrooms or house. If your home is plumbed with copper pipe you can install a mixing valve right at the water heater and set the maximum temperature to 104 degrees f. Your plumber will make a hot water tempering valve adjustment to make sure your tap temperature does not exceed 50 c.

Stored water must be kept at a minimum of 60 degrees celsius to avoid the growth of legionella bacteria but water that comes out of a faucet must not be hotter than 50 degrees celsius. This decreased temperature is dispatched from the shower heads and taps. Here the tempering valve aims to achieve a temperature of 50 degrees. As the water in the cylinder heats up it expands which increases the pressure.

The pressure reduction valve reduces mains pressure the pressure in the pipe in the road to a pressure that the hot water cylinder can safely contain.