Before using the high temperature steam solenoid valve, you must have some knowledge of it.Release time: 2018-12-10 Click times: 55 times
Whether the use of the high-temperature steam solenoid valve can meet the expected use is not only related to the machine itself, but also to the operator. Therefore, the operator needs to have a certain understanding of some of its knowledge before use. Let's take a closer look.
Opening pressure: Also called setting pressure, it is the pressure of the medium when the safety valve disc starts to rise under operating conditions.
Discharge pressure: the pressure on the inlet side when the valve flap reaches the specified opening height.
Seat pressure: After the safety valve is discharged, the valve disc re-compresses the valve seat, and the inlet pressure when the medium stops being discharged. Back seat pressure is an important parameter to characterize the quality of the safety valve. It is generally required to be at least 80% of the working pressure. The upper limit is preferably not to cause frequent flapping of the valve disc.
Opening and closing pressure difference: The difference between the opening pressure and the recoil pressure.
The opening pressure of the safety valve of the boiler drum and superheater is as follows:
When the rated steam pressure is less than 1.27MPa, the opening pressure is the working pressure + 0.02MPa and the working pressure + 0.04MPa; when the rated steam pressure is greater than 1.27MPa, but less than 3.82MPa, the opening pressure is 1.04 times the operating pressure and 1.06 times the Working pressure; when the rated steam pressure is greater than 3.82MPa, the opening pressure is 1.05 borrowing working pressure and 1.08 times the working pressure.
The opening pressure of the economizer safety valve is 1.5 times the working pressure of the economizer.
The opening pressure of the pressure vessel high temperature steam solenoid valve safety valve must not exceed the design pressure of the pressure vessel.
After knowing the above knowledge, I believe that it will be helpful to everyone in the operation of high temperature steam solenoid valve.
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