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It features a unique ring - type seating design that provides excellent sealing performance and reduces the friction between the ball and the seat. The valve is available in different seat ring materials, such as soft - seat (non - metallic) and metal - to - metal seat, to suit various fluid and operating conditions. The soft - seat rings are usually made of PTFE or other polymers, offering good sealing and low - torque operation, while the metal - to - metal seats are suitable for high - temperature and high - pressure applications.
This valve is widely used in the chemical industry for handling corrosive and non - corrosive fluids. In the power generation industry, it is used for steam and water flow control. It is also used in the oil and gas industry for well - head control and pipeline applications. In the food and beverage industry, the soft - seated Ring Type Ball Valve is preferred for its hygienic design and excellent sealing, which helps to prevent contamination.
Q: What are the advantages of the soft - seat ring in the Ring Type Ball Valve?
A: The soft - seat ring offers better shut - off capabilities, can achieve a high level of seat leakage class, and has a lower torque to operate the valve. It is also suitable for clean fluids and provides good sealing even at low pressures.
Q: Can the Ring Type Ball Valve be used in high - temperature applications?
A: Yes, if a metal - to - metal seat ring is selected. Metal - to - metal seated valves are designed to withstand high temperatures and pressures, while soft - seated valves have limitations in high - temperature applications due to the material properties of the seat rings.
Q: How do I maintain the Ring Type Ball Valve?
A: Regular maintenance includes checking the seat rings for wear and tear, cleaning the valve body and components to prevent the accumulation of debris, and lubricating the moving parts if necessary. Also, periodic pressure testing can be carried out to ensure the valve's sealing performance.
MAIN FEATURES
Patented Velan ring valves are an intrinsically safe design. The ring valve has no seats. It is a throttling valve. As a result, it does not require a mechanical stop in order to avoid full closure and the resulting drum overpressurization.
Design Features
Steam purges: Steam purges to bellows and body area ensure the valve cavities are kept free of coke buildup.
Excellent throttling characteristics: In the "maximum obstruction" position, the valve provides a pressure drop equal to a butterfly valve's set at 15° open.
Automation: The electric, hydraulic or pneumatic actuator is selected in function of coker service. A large torque safety factor ensures the valve will cycle under the most stringent conditions. When selecting actuators, special attention is paid to the coker deck environment.
Top entry ball valve is mainly used in pipeline and industry system and it has a top entry and on line maintenance function. It has a lot of advantages, such as small fluid resistance, simple structure, small volume, light weight, reliable saaling, convenience for operation and maintenance, open and close quickly, as well as start and close flexibly.
1.One piece body
One piece body is used for the body to guarantee sufficient strength and rigidity under maximum rated operating pressure. The internal parts of valve are carefully designed and selected to ensure reliability under all kinds of operating condition. Enough margin wall thckness and adaptation of high strength connective bolts are convenient for valve maitenance and sufficiency to support the stress from piping.
2.Top entry
Its most difference from common ball valve is that its maintenance can be made on pipe line and without dismounting from the pipe line. The back space seat structure is adopted for the seat and the rear portion of seat retainer is oblique angle to prevent accumulation of impurity from affecting back space of seat.
3.Low operation torque
Top entry series ball valve has a trunnion mounted ball, whose surface is ground, polished and hard face treated. The ball and stem is integrated, sliding bearing is installed on the external bore so that the friction radius is small and operation torque is very low.
4.Emergency sealing
Compound injection holes are designed and compound injection valves are installed at locations of stem/cap and body support of side valve. When sealing of stem or seat is damaged to induce leakage, the compound can be used to do the second time sealing. A concealed check valve is installed in side of each compound injection valve to prevent compound from out flowing due to the action of transmitter substance. The top of the compound injection valve is the connector for fast connection with compound injection gun.
5.Reliable sealing
The seat sealing is formed by seat sealing and metal retainer component. The seat retainer floats axially and low pressure sealing of valve seat is reached by pre-pressure of spring. In addition, the piston effect of valve seat is designed reasonably, which realized high pressure sealing by the pressure of operating medium and realize the interception of retainer to form the sealing of the body. The expansion graphite ring is designed to realize sealing under fire condition.
6.Double block&bleed(DBB)
When ball is full open or close position, the transmitter substance in center cavity of body can be released by drainage and emptying devices. In addition, the over loaded pressure in the center cavity of valve can be released to low pressure end by self relief seat.
7.Anti-static and fire safe design
The fire prevention design of valve meets the requirement in API6FA/API607 standard and the design of the anti-static conforms to regulations in API6D and BS5351.
8.Extension stem
For the underground installed valve, the stem can be lengthened and for the convenience of operation the corresponding compound injection nozzle and drainage valve can be extended to the top of valve.
9.Various driving types
The top pad of valve designed according to ISO 5211, which is convenient for connection and exchange of various drivers. The common driving types are manual, electrical, pneumatic and pneumatic/hydraulic.
| Brand: | Yuefeng |
| Applicable Media: | Water, Oil, Gas, Nitric Acid, Acetic Acid |
| Certification: | CE/RoHS/ISO9001-2008 |
| Original | Lishui, Zhejiang Province |
| Packing: | Plastic Bag, Carton & Plywood Case/According to customers' requirement. |
| Payment: | T/T, L/C, D/P, Western Union. |
| Port: | Shenzhen, Customers' Request |
| Delivery Time: | Within 15days after receiving T/T deposit Payment |
| Term of Delivery: | EXW/FOB/CNF/CIF, Customers' Request |
Production process
Certificates & Test reports
Packing&Shipping
It features a unique ring - type seating design that provides excellent sealing performance and reduces the friction between the ball and the seat. The valve is available in different seat ring materials, such as soft - seat (non - metallic) and metal - to - metal seat, to suit various fluid and operating conditions. The soft - seat rings are usually made of PTFE or other polymers, offering good sealing and low - torque operation, while the metal - to - metal seats are suitable for high - temperature and high - pressure applications.
This valve is widely used in the chemical industry for handling corrosive and non - corrosive fluids. In the power generation industry, it is used for steam and water flow control. It is also used in the oil and gas industry for well - head control and pipeline applications. In the food and beverage industry, the soft - seated Ring Type Ball Valve is preferred for its hygienic design and excellent sealing, which helps to prevent contamination.
Q: What are the advantages of the soft - seat ring in the Ring Type Ball Valve?
A: The soft - seat ring offers better shut - off capabilities, can achieve a high level of seat leakage class, and has a lower torque to operate the valve. It is also suitable for clean fluids and provides good sealing even at low pressures.
Q: Can the Ring Type Ball Valve be used in high - temperature applications?
A: Yes, if a metal - to - metal seat ring is selected. Metal - to - metal seated valves are designed to withstand high temperatures and pressures, while soft - seated valves have limitations in high - temperature applications due to the material properties of the seat rings.
Q: How do I maintain the Ring Type Ball Valve?
A: Regular maintenance includes checking the seat rings for wear and tear, cleaning the valve body and components to prevent the accumulation of debris, and lubricating the moving parts if necessary. Also, periodic pressure testing can be carried out to ensure the valve's sealing performance.
MAIN FEATURES
Patented Velan ring valves are an intrinsically safe design. The ring valve has no seats. It is a throttling valve. As a result, it does not require a mechanical stop in order to avoid full closure and the resulting drum overpressurization.
Design Features
Steam purges: Steam purges to bellows and body area ensure the valve cavities are kept free of coke buildup.
Excellent throttling characteristics: In the "maximum obstruction" position, the valve provides a pressure drop equal to a butterfly valve's set at 15° open.
Automation: The electric, hydraulic or pneumatic actuator is selected in function of coker service. A large torque safety factor ensures the valve will cycle under the most stringent conditions. When selecting actuators, special attention is paid to the coker deck environment.
Top entry ball valve is mainly used in pipeline and industry system and it has a top entry and on line maintenance function. It has a lot of advantages, such as small fluid resistance, simple structure, small volume, light weight, reliable saaling, convenience for operation and maintenance, open and close quickly, as well as start and close flexibly.
1.One piece body
One piece body is used for the body to guarantee sufficient strength and rigidity under maximum rated operating pressure. The internal parts of valve are carefully designed and selected to ensure reliability under all kinds of operating condition. Enough margin wall thckness and adaptation of high strength connective bolts are convenient for valve maitenance and sufficiency to support the stress from piping.
2.Top entry
Its most difference from common ball valve is that its maintenance can be made on pipe line and without dismounting from the pipe line. The back space seat structure is adopted for the seat and the rear portion of seat retainer is oblique angle to prevent accumulation of impurity from affecting back space of seat.
3.Low operation torque
Top entry series ball valve has a trunnion mounted ball, whose surface is ground, polished and hard face treated. The ball and stem is integrated, sliding bearing is installed on the external bore so that the friction radius is small and operation torque is very low.
4.Emergency sealing
Compound injection holes are designed and compound injection valves are installed at locations of stem/cap and body support of side valve. When sealing of stem or seat is damaged to induce leakage, the compound can be used to do the second time sealing. A concealed check valve is installed in side of each compound injection valve to prevent compound from out flowing due to the action of transmitter substance. The top of the compound injection valve is the connector for fast connection with compound injection gun.
5.Reliable sealing
The seat sealing is formed by seat sealing and metal retainer component. The seat retainer floats axially and low pressure sealing of valve seat is reached by pre-pressure of spring. In addition, the piston effect of valve seat is designed reasonably, which realized high pressure sealing by the pressure of operating medium and realize the interception of retainer to form the sealing of the body. The expansion graphite ring is designed to realize sealing under fire condition.
6.Double block&bleed(DBB)
When ball is full open or close position, the transmitter substance in center cavity of body can be released by drainage and emptying devices. In addition, the over loaded pressure in the center cavity of valve can be released to low pressure end by self relief seat.
7.Anti-static and fire safe design
The fire prevention design of valve meets the requirement in API6FA/API607 standard and the design of the anti-static conforms to regulations in API6D and BS5351.
8.Extension stem
For the underground installed valve, the stem can be lengthened and for the convenience of operation the corresponding compound injection nozzle and drainage valve can be extended to the top of valve.
9.Various driving types
The top pad of valve designed according to ISO 5211, which is convenient for connection and exchange of various drivers. The common driving types are manual, electrical, pneumatic and pneumatic/hydraulic.
| Brand: | Yuefeng |
| Applicable Media: | Water, Oil, Gas, Nitric Acid, Acetic Acid |
| Certification: | CE/RoHS/ISO9001-2008 |
| Original | Lishui, Zhejiang Province |
| Packing: | Plastic Bag, Carton & Plywood Case/According to customers' requirement. |
| Payment: | T/T, L/C, D/P, Western Union. |
| Port: | Shenzhen, Customers' Request |
| Delivery Time: | Within 15days after receiving T/T deposit Payment |
| Term of Delivery: | EXW/FOB/CNF/CIF, Customers' Request |
Production process
Certificates & Test reports
Packing&Shipping