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508 Vacuum pressure relief valve

508 Vacuum pressure relief valve

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Pressure: 7.69X10-3kgf / cm2

Vacuum: 2.2X10-3kgf / cm2

[Scope of application]: Mainly used for supporting products of various pneumatic conveying systems.

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Overview of 508 vacuum pressure relief valve

508 vacuum pressure release valve is a star product in the pneumatic conveying equipment accessories of Gongyi Fucheng Machinery Factory. It has been developed and improved for many years. It is widely used in the exhaust of ash storage and pressure regulation in various enterprises. Trust and praise. 508 vacuum pressure release valve is also known as ash warehouse release valve or ash warehouse vacuum release valve. It is arranged on the top of the ash storage to protect the ash storage from excessive positive and negative pressures when the ash storage intake, exhaust overpressure and abnormal temperature changes.

Working principle of 508 vacuum pressure relief valve

508 vacuum pressure relief valve is suitable for oil-immersed power transformers, power capacitors and on-load boundary switches, etc., to protect the fuel tank. When an oil-immersed transformer fails during operation, a part of the transformer oil is vaporized due to overheating of the coil, and the pressure in the transformer oil tank rapidly increases. At this time, the pressure release valve quickly operates within 2ms to protect the fuel tank from deformation or bursting. When the pressure in the fuel tank rises again to reach the opening pressure, the pressure relief valve will act again until the pressure in the fuel tank drops to a normal value. Because the pressure release valve can be closed reliably after the action, water and air outside the fuel tank cannot enter the fuel tank, and the inside of the transformer will not be polluted by the atmosphere.
508 vacuum pressure relief valve structure
It mainly consists of bonnet, upper valve body, lower valve body, retaining ring, spring, vacuum ring, diaphragm gasket and so on.


1

Valve seat

4

cap

2

Retaining ring spring

5

Vacuum ring

3

Retaining ring

6

Diaphragm


508 vacuum pressure relief valve main features
1. This equipment adopts a large-diameter exhaust port (508mm), and the upper cover of the exhaust port is made of aluminum alloy, which is light in weight and sensitive to pressure changes. Use the weight of the bonnet to set the opening pressure, which can ensure the correct and reliable opening pressure even through long-term work.
2, using aluminum alloy and cast iron structure, corrosion resistance, aging resistance.
3. Simple structure, no maintenance workload in normal work.
4. The vacuum release valve operates flexibly and reliably.

Technical Parameters

Main technical parameters of 508 vacuum pressure relief valve

model

508

caliber

Φ508

Standard ventilation

Set value

pressure

7.69X10-3kgf / cm2

vacuum

2.2X10-3kgf / cm2

maximum

Air permeability

pressure

26.36X10-3kgf / cm2

vacuum

8.8X10-3kgf / cm2

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Pneumatic conveying equipment
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