1. When purchasing an angle valve for a gas water heater, the service life of the angle valve should be considered, so try to choose a stainless steel or all-copper angle valve. The angle valve made of this material is of good quality and has a longer service life. Look inside, if there are small white spots, it means that it is zinc alloy, yellow or yellowish white, and smooth, then it is made of copper.
2. The spool can be said to be the heart of the angle valve, especially the sealing ring and the ceramic sheet of the spool. Generally, a high-quality angle valve uses a ceramic spool, so you can try the feel when purchasing. If the feel is too light, then use Water leakage will occur after a long time, so try not to buy it.
3. When purchasing an angle valve for a gas water heater, you must carefully check the workmanship details of the angle valve to see whether the surface plating of the angle valve for a gas water heater is smooth, whether there are bubbles on the surface, and whether there is any scratch. It is better to touch it smoothly and without flaws .
