All welded ball valve Q367F, Fully Welded Ball Valve,

Product characteristics

1, fire structural design: according to API607/BS6755 specifications, in the valve use site fire, the secondary sealing non-metallic material made of the sealing ring at high temperature decomposition or destruction, at this time the primary metal seal can quickly adhere to the ball to play a sealing role. The two-stage sealing valve seat structure design ensures the reliability of the valve seat fire protection.

2, anti-static design: the use of spring and ball electrostatic discharge device, through the valve stem to form an electrostatic channel between the ball and the valve body, so that the ball and the sealing ring switch in the process of friction generated static electricity through the valve body to the earth, to prevent electrostatic sparks may cause fire or explosion and other dangers.

3, sealed emergency rescue and lubrication of the valve: when the valve seat and stem seals are damaged and leaked, the sealing grease injected by the grease valve can achieve instant sealing. When the valve is working normally, grease can be injected through the grease injection valve to lubricate the valve stem and the sphere, making the valve more flexible and portable.

4, seat structure design: A. upstream and downstream are using A single piston seat: with double blocking/double discharge function, can simultaneously cut off from the upper and lower media; With automatic pressure relief function: When the medium trapped in the valve chamber increases in temperature, the valve seat can automatically relieve pressure (discharge to the end of the low pressure). B. Both upstream and downstream use double piston seat: with double blocking function, can cut off the medium from the upper and downstream at the same time; The medium trapped in the valve chamber can not realize automatic relief, so it is necessary to set a pressure relief valve on the valve body to keep the abnormal pressure boost of the valve chamber. C. The upstream adopts a single piston seat and the downstream adopts a double piston seat: it has a double blocking function and can cut off the medium from the upper and downstream at the same time; With automatic directional pressure relief function: When the medium trapped in the valve chamber increases in temperature, the valve seat can automatically relieve pressure (discharge to the upstream side).

5, drive device installation platform setting: in line with ISO5211 valve flange design, through the support and coupling sleeve, easy to install any type of drive device.

6, lengthening the valve stem: for the buried installation of the valve, according to the needs of installation and operation, the valve stem of the valve can be lengthened, and the size of the valve stem can be lengthened according to customer requirements. All blowdown pipes, exhaust pipes and emergency grease injection devices shall be lengthened accordingly, and other relevant pipes shall be attached to the extended part of the valve. The valve blowdown valve, blowdown valve and grease injection valve shall be connected to the ground for regular maintenance of the main valve. The valve surface shall be coated with corrosion-resistant asphalt, polyurethane or epoxy resin according to specifications to adapt to the buried installation and use conditions.

7, lengthening the valve cover: for the valve that is required to work at low temperatures, by lengthening the valve cover, the distance between the valve body and the valve stem seal area is increased, and the influence of temperature on the seal is avoided. The lengthening height can also be according to the requirements of customers.

8, valve structure: The valve adopts three-body side forging welding structure, which eliminates the excessive torque caused by the huge sealing load formed by the ball and the sealing seat driven by the import pressure. The surface finish of the ball is mirrorlike, and the bushing with good self-lubricity is used to achieve a small opening and closing moment even at the highest operating pressure.

9, welding structure characteristics: The left and right body and the middle body welding using a typical narrow gap submerged arc multi-layer welding, welding the use of special flux with the required welding current carrying and desagging effect, the granularity of the welding layer is fine, to meet the high strength toughness welding metal properties. Welding 100% ultrasonic inspection and hardness test to ensure the welding quality of the weld.

10, finite element analysis: valve shell and inner parts are carefully designed to ensure reliable work under various working conditions; The strength of valve shell, the force of internal parts and the operating torque of valve stem were simulated by finite element analysis to optimize the problems and weaknesses and ensure the superior performance of the valve.

Product characteristics

1, fire structural design: according to API607/BS6755 specifications, in the valve use site fire, the secondary sealing non-metallic material made of the sealing ring at high temperature decomposition or destruction, at this time the primary metal seal can quickly adhere to the ball to play a sealing role. The two-stage sealing valve seat structure design ensures the reliability of the valve seat fire protection.

2, anti-static design: the use of spring and ball electrostatic discharge device, through the valve stem to form an electrostatic channel between the ball and the valve body, so that the ball and the sealing ring switch in the process of friction generated static electricity through the valve body to the earth, to prevent electrostatic sparks may cause fire or explosion and other dangers.

3, sealed emergency rescue and lubrication of the valve: when the valve seat and stem seals are damaged and leaked, the sealing grease injected by the grease valve can achieve instant sealing. When the valve is working normally, grease can be injected through the grease injection valve to lubricate the valve stem and the sphere, making the valve more flexible and portable.

4, seat structure design: A. upstream and downstream are using A single piston seat: with double blocking/double discharge function, can simultaneously cut off from the upper and lower media; With automatic pressure relief function: When the medium trapped in the valve chamber increases in temperature, the valve seat can automatically relieve pressure (discharge to the end of the low pressure). B. Both upstream and downstream use double piston seat: with double blocking function, can cut off the medium from the upper and downstream at the same time; The medium trapped in the valve chamber can not realize automatic relief, so it is necessary to set a pressure relief valve on the valve body to keep the abnormal pressure boost of the valve chamber. C. The upstream adopts a single piston seat and the downstream adopts a double piston seat: it has a double blocking function and can cut off the medium from the upper and downstream at the same time; With automatic directional pressure relief function: When the medium trapped in the valve chamber increases in temperature, the valve seat can automatically relieve pressure (discharge to the upstream side).

5, drive device installation platform setting: in line with ISO5211 valve flange design, through the support and coupling sleeve, easy to install any type of drive device.

6, lengthening the valve stem: for the buried installation of the valve, according to the needs of installation and operation, the valve stem of the valve can be lengthened, and the size of the valve stem can be lengthened according to customer requirements. All blowdown pipes, exhaust pipes and emergency grease injection devices shall be lengthened accordingly, and other relevant pipes shall be attached to the extended part of the valve. The valve blowdown valve, blowdown valve and grease injection valve shall be connected to the ground for regular maintenance of the main valve. The valve surface shall be coated with corrosion-resistant asphalt, polyurethane or epoxy resin according to specifications to adapt to the buried installation and use conditions.

7, lengthening the valve cover: for the valve that is required to work at low temperatures, by lengthening the valve cover, the distance between the valve body and the valve stem seal area is increased, and the influence of temperature on the seal is avoided. The lengthening height can also be according to the requirements of customers.

8, valve structure: The valve adopts three-body side forging welding structure, which eliminates the excessive torque caused by the huge sealing load formed by the ball and the sealing seat driven by the import pressure. The surface finish of the ball is mirrorlike, and the bushing with good self-lubricity is used to achieve a small opening and closing moment even at the highest operating pressure.

9, welding structure characteristics: The left and right body and the middle body welding using a typical narrow gap submerged arc multi-layer welding, welding the use of special flux with the required welding current carrying and desagging effect, the granularity of the welding layer is fine, to meet the high strength toughness welding metal properties. Welding 100% ultrasonic inspection and hardness test to ensure the welding quality of the weld.

10, finite element analysis: valve shell and inner parts are carefully designed to ensure reliable work under various working conditions; The strength of valve shell, the force of internal parts and the operating torque of valve stem were simulated by finite element analysis to optimize the problems and weaknesses and ensure the superior performance of the valve.

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.