●Unique, compact, and lightweight design with flexible and labor-saving operation;
●Provides reliable sealing that meets various standards;
●Offers good flow characteristics and has a regulating function;
●Utilizes an eccentric design to minimize wear on the sealing surface, extending the valve's lifespan;
●Suitable for a wide range of applications, including water, steam, oil, and gas;
●Applicable across various conditions including different temperatures, pressures, and corrosive environments;
●Features a triple eccentric hard-sealed butterfly valve with an integral body and seat, the seat's sealing surface is coated with temperature and corrosion-resistant materials;
●Three eccentricities position the shaft and sealing surfaces to optimize sealing and reduce wear;
●Equipped with multi-layer sealing rings on the valve plate, enhancing sealing performance and operational ease, suitable for both high and low temperatures, ensuring zero leakage.
Material: Carbon Steel, Stainless Steel, Alloy Steel
Nominal Size: NPS 2"~64", DN 50~1600
Pressure Rate: Class 150~1500, PN 10~250
Temperature Range: -46°C~538°C
Operator: Manual, Pneumatic, Electric, etc...
Application range: Suitable for water supply and drainage and gas pipelines in food, medicine, chemical industry, petroleum, electric power, light textile, paper making, etc. to adjust the flow and intercept the medium.
◎ Design Standard: ASME B16.34、API 609、EN 593、
◎ Pressure Temperature Rate: ASME B16.34、EN12516-1、
◎ Face to Face: API 609、ISO 5752、EN558
◎ Flange Standard: ASME B16.5、ASME B16.47、EN 1092、GOST 33259、GB/T 9124
◎ Butt Weld: ASME B16.25、EN 12627
◎ Pressure Test: API 598、ISO 5208、EN 12266-1、GOST 9544
When the disc of the lift check valve slides along the vertical center line of the valve body and the medium flows forward, the disc is lifted by the fluid thrust and the medium passes smoothly; When the medium stops flowing or reverse flowing, the valve disc quickly closes under the action of its own gravity and the reverse thrust of the fluid to prevent the medium from flowing back. This valve is usually equipped with a guide sleeve to ensure that the disc remains smooth during lifting and accurately falls back onto the seat.
RAYS cast steel check valves are designed and manufactured to provide maximum service life and dependability. All check valves meet the design requirements of American Petroleum Institute standard API600 & 6D.BS EN 13709 and generally conform to American Society of Mechanical Engineers standard ASME B16.34. Valves are available in a complete range of body/cover materials and trims.
The DBB Plug Valve is a high-performance fluid control device. It adopts advanced track-guided technology to achieve low-torque opening and closing and zero-leakage sealing. This valve is specially designed for harsh working conditions and is suitable for key fields such as petroleum, chemical industry, power and long-distance pipelines. It can meet the complex working conditions such as high pressure, high temperature, corrosive media, and frequent operations. (also known as the general valve) is a high-performance fluid control device. It adopts advanced track-guided technology to achieve low-torque opening and closing and zero-leakage sealing. This valve is specially designed for harsh working conditions and is suitable for key fields such as petroleum, chemical industry, power, and long-distance pipelines. It can meet the complex working conditions such as high pressure, high temperature, corrosive media, and frequent operations.