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Cut-off ball valve,cut-off valve, ball valve

Product Code : VF--QCC-Q35-CU

Product model: PQ41F

Caliber: DN20 ~ DN500

Product pressure: 0-4.0MPa

Material: carbon steel, stainless steel

Connection type: flange

Product seal: reinforced PTFE

Structure type: straight through

Driving mode: manual, pneumatic, electric


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Cut-off ball valveVF--QCC-Q35-CUCustomizedCustomized

Cut off the ball valve using eccentric valve body, eccentric ball and seat, the valve stem for rotating movement in the common track automatic centering, closing process tighter, fully achieve a good sealing purpose. The ball and seat of the double cut ball valve are completely separated, eliminating the wear of the sealing ring, overcoming the problem that the traditional ball seat and the ball sealing surface are always worn, and the non-metallic elastic material is embedded in the metal seat, and the metal surface of the seat is well protected.

Structural features:

1, the valve structure adopts the eccentric tightening principle through the transmission mechanism to achieve the purpose of brake tightening, adjustment and closure, the sealing pair is a metal surface ring with a hard surface contact seal, the double eccentric structure in the opening of the valve spool is located in the ball room, the flow section is large, and the valve is not washed, the valve spool is not washed when closed, the valve spool ball is gradually along the valve seat when opened, effectively cutting the scale barrier. Achieve reliable sealing. It is especially effective for two-phase mixed flow transportation where solid precipitates are easy to scale.

2, the hemisphere of the valve with bimetal, the base metal on the surfacing of different alloys, the valve seat is also the corresponding surfacing welding by special treatment, sealing surface combination into anti-corrosion, wear, high strength and other types to meet the needs of different occasions.

3, tight seal, transport harmful gas can reach zero leakage.

4, the valve core of the sealing pair has a compensation amount, when the valve is worn, it is turned a little when it is closed, and it can be reliably sealed and extend the service life. In addition, the user will screw off the compression nut, adjust or replace the valve seat is still available, to avoid the failure of the valve seal, the whole set scrapped.

Standard specification:

Design and manufacturing standard: GB/T 12237-2007

Structure length standard: GB/T 12221-2005

Connection flange standard: GB/T 9113

Pressure temperature grade: GB/T 12224-2005

Test standard: GB/T 13927-2008


Cut ball valve products are especially suitable for steel industry, aluminum, fiber, small solid particles, pulp, coal ash, petroleum gas and other media. Due to surfacing welding of different alloy (or combination ball) bimetal sealing pair selection cut ball valve can be used for wear resistance, corrosion resistance, high temperature resistance and strict sealing conditions.

1, universal cut off ball valve: specification model DN40-1600. It is suitable for sewage treatment, paper pulp, urban heating and other tight occasions

2, petrochemical special cut off ball valve: specification DN40-1600. Suitable for crude oil, heavy oil and other oil products, chemical industry weak corrosion, two-phase mixed flow medium

3, gas special cut off ball valve: specification DN40-1600. Suitable for gas, natural gas, liquefied gas transmission control

4, slurry special cut off ball valve: specification DN40-1600. It is suitable for liquid and solid two-phase mixed flow or industrial pipeline transportation with crystallization or scaling in chemical reaction of liquid transportation

5. Special valve for pulverized coal ash: specification DN40-1600. Suitable for power plant, hydraulic slag removal or gas pipeline control


Packing of Standard Packing: 

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 470 gallon liquid totes Special package is available on request. E FORUs’  is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.




Structural features:

1, the valve structure adopts the eccentric tightening principle through the transmission mechanism to achieve the purpose of brake tightening, adjustment and closure, the sealing pair is a metal surface ring with a hard surface contact seal, the double eccentric structure in the opening of the valve spool is located in the ball room, the flow section is large, and the valve is not washed, the valve spool is not washed when closed, the valve spool ball is gradually along the valve seat when opened, effectively cutting the scale barrier. Achieve reliable sealing. It is especially effective for two-phase mixed flow transportation where solid precipitates are easy to scale.

2, the hemisphere of the valve with bimetal, the base metal on the surfacing of different alloys, the valve seat is also the corresponding surfacing welding by special treatment, sealing surface combination into anti-corrosion, wear, high strength and other types to meet the needs of different occasions.

3, tight seal, transport harmful gas can reach zero leakage.

4, the valve core of the sealing pair has a compensation amount, when the valve is worn, it is turned a little when it is closed, and it can be reliably sealed and extend the service life. In addition, the user will screw off the compression nut, adjust or replace the valve seat is still available, to avoid the failure of the valve seal, the whole set scrapped.

Standard specification:

Design and manufacturing standard: GB/T 12237-2007

Structure length standard: GB/T 12221-2005

Connection flange standard: GB/T 9113

Pressure temperature grade: GB/T 12224-2005

Test standard: GB/T 13927-2008


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