●The overall structure design of the valve is compact, with small external dimensions and light weight. It is not only easy to transport and install, but also effectively saves space in the pipeline system, especially suitable for working conditions with limited installation space
●The main components such as the valve body and valve cover are forged and formed using forging technology. Compared with cast steel parts, they have better quality and performance, stronger mechanical properties such as plasticity and toughness, and can withstand greater impact forces. They can meet the requirements of various harsh working conditions and are suitable for high temperature, high pressure, and harsh working environments
●The selection of sealing surface materials is reasonable. Generally, the sealing surfaces of the valve disc and seat are made of alloy steel or hard alloy butt welding, which is heat-resistant, corrosion-resistant, wear-resistant, has a long service life, and can maintain good sealing performance for a long time
●When the medium flows downstream, the valve disc opens under the thrust of the medium; When the medium stops flowing or undergoes backflow, the valve disc automatically closes under its own gravity and the pressure of the medium backflow, thereby preventing the medium from flowing back. The action is sensitive and reliable, and the opening and closing are rapid, which can effectively protect the normal operation of the pipeline system and equipment
●Multiple connection methods can be provided, such as socket welding, threading, flanges, butt welding, etc., to meet the installation needs of different pipeline systems. At the same time, the nominal pressure range of the valve is wide, from CL150 to CL2500, and the working temperature range is wide, usually between -196 ° C and+600 ° C. It can adapt to various pressure levels and temperature conditions, and can be widely used in many industries such as petroleum, chemical, natural gas, power, metallurgy, papermaking, pharmaceuticals, etc
Main material: carbon steel, stainless steel, alloy steel
Nominal diameter: NPS1/4″~NPS3″ DN6~DN80
Pressure range: CL150~CL2500 PN10 ~ PN420
Working temperature: -196°C ~ +600°C
Operator: Manual
Application range: tap water, sewage, construction, petroleum, chemical industry, food, medicine, textile, electricity, shipbuilding, metallurgy, energy system, etc.
◎ Design Standard: API 602、BS5352
◎ Pressure Temperature Rate: ASME B16.34,GB/T12224
◎ Face to Face: ASME B16.10,GB/T12221
The length of the riveted structure at the threaded end of the socket-welding connection shall comply with the factory standards.
◎Connection standards：ASME B16.11、ASME B1.20.1、ASME B16.5、ASME B16.25
◎ Fire Safe: API6D
◎ Pressure test: API 602/API 598,BS5146
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, ships, 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, ships, and long-distance pipelines. It can meet the complex working conditions such as high pressure, high temperature, corrosive media, and frequent operations.
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 quality of forged steel parts is higher than that of cast steel parts, and they can withstand the impact of beatings. The plasticity, toughness, and other mechanical properties are higher than those of cast steel parts. The diameter of cast steel gate valves is generally not more than DN80, and most of them are reduced-diameter designs. Compared with cast steel gate valves of the same diameter, the flow rate is slightly lower, but the pressure and temperature range they can withstand are higher than those of cast steel valves, and the sealing performance is much better than that of cast steel gate valves, and the service life is longer. The flow direction of the medium is not restricted like other gate valves.