This is because there is no water inside
The pressure relief valve of the water heater is an essential part of the heater -water. Normal use of the water heater is inseparable from its function. of the pressure relief valve, so the water heater How to install the pressure relief valve: 1. Before the pressure relief valve leaves the factory, its opening pressure should be adjusted one by one to the setting value required by the user. If the user suggests a working pressure level for the spring, the factory setting should generally be made based on the lower limit of the pressure level. 2. Before installing the pressure relief valve on the protected equipment or before installation, the user should readjust it at the installation site to ensure that the set pressure value of the pressure relief valve meets the requirements. 3. Within the specified spring operating pressure level rangeon the nameplate, the opening pressure can be adjusted by changing the degree of spring compression by turning the adjustment screw. 4. Before turning the adjusting screw, the valve inlet pressure should be reduced to less than 90% of the opening pressure to prevent the valve disc from being rotated when the adjusting screw is rotated, thereby damaging the sealing surface. 5. In order to ensure that the opening pressure value is accurate, the fluid conditions during adjustment, such as fluid type, temperature, etc., should be as close as possible to the actual operating conditions. The opening pressure often changes when the fluid type changes, especially when the accumulation state of the fluid is different (e.g., from liquid phase to gas phase). As the operating temperature increases, the cracking pressure generally decreases. Therefore, lors of normal temperature setting and high temperature use, the pressure value set at normal temperature should be slightly higher than the required opening pressure value. Its height depends on the valve structure and choice of materials and should be based on the manufacturer's instructions. 6. Conventional pressure relief valves are used when additional back pressure is attached. When the opening pressure is adjusted after inspection (the back pressure is the atmospheric pressure at this time), its setting value should be the required opening pressure value minus the additional back pressure. value.
Wall-mounted solar energy absorbs heat more widely, but it is too demanding to use and very complicated to install. Ordinary solar energy has a higher safety factor. Today, with the rapid development of economy and society, our technical level has comstarted to improve in all its aspects. Various technologically advanced solar energy products have appeared on the market, thereby greatly improving people's living standards and bringing us more convenience. The hanging type brings us many advantages, greatly improving our ability to absorb heat, but it also has many disadvantages in terms of safety, ordinary solar energy still has the advantage.
The explosion-proof valve and the pressure relief valve of the solar water heater are the same.
Solar water heater is a device that converts solar energy into thermal energy, heating water from low temperature to high temperature to meet people's use of hot water in life and production. Solar water heaters are divided into vacuum tube solar water heaters and flat panel solar water heaters based on their structural shapes. Water heatersVacuum tube filters are mainly used, accounting for 95% of the domestic market share. Household evacuated tube solar water heaters are composed of heat collecting tubes, water storage tanks, brackets and other related parts. The conversion of solar energy into thermal energy mainly relies on vacuum heat collecting tubes which use the principle of hot water floating. and cold water flows to cause microcirculation in the water.