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The most commonly used pressure-relief valve: Aerobic pressure-relief valveThe introduction - company of day grand valve is offerred in physico-chemical experiment, often want to use gas of oxygen, nitrogen, hydric, argon to wait for gas. These gas are lay aside commonly in bottle of steel of gas of existence appropriative high pressure. When using, make through pressure-relief valve aeriform pressure falls to need range to laboratory, repass other controls valve thin tone, make gas inputs use system. The most commonly used pressure-relief valve is aerobic pressure-relief valve, abbreviation oxygen is expressed.
The working principle of 1. oxygen pressure-relief valve
Aerobic pressure-relief valvethe exterior and working principle see graph Ⅱ - 2-7 and graph II-2-8.
OxygenPressure-relief valvehigh-pressured antrum and steel bottle join, low-pressure antrum is aeriform exit, lead to use system. The indication that high pressure expresses is the pressure of gas of the keep in storage inside steel bottle. The outlet pressure of low-pressure watch but by adjust screw control.
Steel bottle master switch is opened first when using, arrange hour hand to turn low-pressure meter pressure adjusts next screw, make its are compressed advocate bedspring and space block of transmission film, bedspring will be valvular with ejector pin open. The high-pressured gas of such entrances by reduce expenditure of high-pressured room classics decompression hind enters low-pressure room, lead to working system via exit. Roll adjustment screw, change the height of valvular open, adjust thereby the requires through measure and reaching place pressure cost of high-pressured gas.
Pressure-relief valveContain relief valve. It is the device that the safety that protect pressure-relief valve and makes uses, also bePressure-relief valveThe pilot device of occurrence breakdown. If damage as a result of valvular mat, valve or as a result of other reason, when bring about outlet pressure proper motion to rise and allowing a value certainly more than, relief valve can open exhaust automatically.
2.Aerobic pressure-relief valveuse method
(What 1) presses use demand is different, Aerobic pressure-relief valveHave a lot of norms. Highest inlet pressure mostly for, lowermost inlet pressure is not less than 2.5 times of outlet pressure. Outlet pressure norms is more, general for, highest outlet pressure for.
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