Explosion proof electric ball valve

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Electric explosion-proof ball valve manufacturer, picture of electric explosion-proof ball valve, price of electric explosion-proof ball valve, model of electric explosion-proof ball valve

Explosion proof electric ball valve pictureIntroduction to manual materials

Explosion proof electric ball valve pictureAlso known as electric explosion-proof ball valve, floating flange ball valve, valve body material 304 stainless steel, sealed PTFE, pressure PN16~25, through DN15-DN200, suitable medium: diesel, through DN15-DN200, (national standard), explosion-proof electric device (explosion-proof grade ExdIIBT4 can also be ExdIICT6), explosion-proof electric device drives the valve stem to drive the ball to rotate, allowing the medium to pass smoothly. Widely used in industries such as petroleum, chemical, gas, metallurgy, environmental protection, coal mining, and electricity

characteristic

1. The thrust bearing reduces the friction torque of the valve stem, which can make the valve stem operate smoothly and flexibly for a long time.
2. Anti static function: Install springs between the ball, valve stem, and valve body to dissipate static electricity generated during the switching process.
3. Due to the good self-lubricating properties of materials such as polytetrafluoroethylene, the friction loss with the ball is small, resulting in a long service life for pneumatic ball valves.
4. Low fluid resistance: Pneumatic ball valves are one of the valve classifications with low fluid resistance, even for reduced diameter pneumatic ball valves, their fluid resistance is quite small.
5. Reliable valve stem sealing: Due to the valve stem only rotating and not lifting, the packing seal of the valve stem is not easily damaged, and the sealing ability increases with the increase of medium pressure.
6. Good sealing performance of valve seat: The sealing ring made of elastic materials such as polytetrafluoroethylene has a structure that is easy to seal, and the sealing ability of pneumatic ball valves increases with the increase of medium pressure.

performance parameters

1. Nominal pressure or pressure level: PN1.0-32.0MPa, ANSI CLASS 150-900, S10-20K;
2. Nominal diameter or caliber: DN6-900, NPS 1/4~36;
3. Connection methods: flange, butt welding, thread, socket welding, etc;
4. Applicable temperature: -196 ℃~540 ℃;
5. Drive modes: manual, worm gear transmission, pneumatic, electric, hydraulic, pneumatic hydraulic, electro-hydraulic linkage;
6. Valve body material: WCB、ZG1Cr18Ni9Ti、ZG1Cr18Ni12Mo2Ti、CF8(304)、CF3(304L)、CF8M(316)、CF3M (316L)、Ti。 By selecting different materials, it can be applied to various media such as water, steam, oil, nitric acid, acetic acid, oxidizing media, urea, etc.

Component materials

External structural dimensions:

Structural dimension diagram:

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repair:

Having a long service life and maintenance free period will depend on the following factors: normal working conditions, maintaining a harmonious temperature/pressure ratio, and reasonable corrosion data
When the ball valve is in the closed state, there is still pressurized fluid inside the valve body
Before maintenance, relieve the pipeline pressure and keep the valve in the open position
Before maintenance, disconnect the power or gas source
Before maintenance, detach the actuator from the bracket
Only after confirming that the pressure in the upstream and downstream pipelines of the ball valve has been relieved, can disassembly and assembly operations be carried out
Be careful not to damage the sealing surface of the parts during disassembly and reassembly, especially non-metallic parts. Tools should be used when removing the O-ring
During assembly, tighten the bolts on the flange symmetrically, gradually, and evenly
The cleaning agent should be compatible with the rubber parts, plastic parts, metal parts, and working media (such as gas) in the ball valve. When the working medium is gas, gasoline (GB484-89) can be used to clean metal parts. Clean non-metallic parts with pure water or alcohol
Non metallic parts should be immediately removed from the cleaning agent after cleaning and should not be soaked for a long time
After cleaning, it is necessary to wait for the wall cleaning agent to evaporate (which can be wiped with a silk cloth that has not been soaked in cleaning agent) before assembly, but it should not be left for a long time, otherwise it will rust and be contaminated by dust
New parts also need to be cleaned thoroughly before assembly
During assembly, metal debris, fibers, grease (excluding those specified for use), dust, and other impurities, foreign objects, etc. should not be allowed to contaminate, adhere or remain on the surface of the parts or enter the inner cavity. If there is slight leakage at the packing, the valve stem nut must be tightened again.
Attention: Do not lock too tightly. Usually, lock it 1/4 turn to 1 turn again, and the leakage will stop.