CSW701 Small-size Bellows-sealed Single-seat Control Valve
The upper valve cover of the CSW701 small-size corrugated pipe sealed single-seat control valve adopts a corrugated pipe sealing structure, which can completely eliminate the possibility of medium leakage from the valve stem's movement gap. Therefore, it is widely used in automatic control systems for highly toxic, highly corrosive, radioactive, and rare and precious media. The valve body has an S-shaped streamlined channel, with low pressure drop loss, large flow rate, wide adjustable range, and high flow characteristic accuracy.
CW701 Bellows-sealed Single-seat Control Valve
The CW701 Bellows-sealed Single-seat Control Valve is a type of top-guided structure regulating valve. The upper valve cover adopts a bellows-sealing structure, which can completely eliminate the possibility of medium leakage from the valve stem's movement gap. Therefore, it is widely used in automatic control systems for highly toxic, highly corrosive, radioactive and rare precious media. The valve body structure is compact, the fluid channel is in an S-flow line shape, the pressure drop loss is small, the flow rate is large, and the adjustable range is wide.
CW702 Bellows-sealed Cage-guided Control Valve
The CW702 Bellows-sealed Cage-guided Control Valve is a pressure-balancing type regulating valve. The upper valve cover adopts a bellows-sealing structure, which can completely eliminate the possibility of medium leakage from the valve stem's movement gap. Therefore, it is widely used in automatic control systems for highly toxic, highly corrosive, radioactive and rare precious media. The valve body flow channel is in an S-flow line shape, with low pressure drop loss, large flow rate and wide adjustable range.
CLW702 Low-leakage Bellows-sealed Cage-guided Control Valve
The CLW702 Low-leakage Bellows-sealed Cage-guided Control Valve is a pressure-balancing type control valve. The valve core adopts a pressure-balancing structure and uses a smaller actuator force to control the high-pressure difference. There is a sealing ring between the valve core and the valve cage, which reduces the leakage. The upper valve cover adopts a bellows-sealed structure, which can completely eliminate the possibility of medium leakage from the valve stem movement gap. Therefore, it is widely used in automatic control systems for highly toxic, highly corrosive, radioactive, and rare and valuable media. The fluid passage of the valve body is in an S-flow pattern. Its advantages are small pressure drop loss, large allowable flow capacity, large adjustable ratio, and high flow characteristic accuracy.
CW700 Series Bellows Seal Control Valves are divided into three major series: CSW701/CW701/CW702/CLW702 type bellows-sealed single-seat regulating valves and bellows-sealed cage-type regulating valves, as well as low-leakage bellows-sealed cage-type regulating valves. The bellows-sealed single-seat regulating valve is a regulating valve with top guide structure. The bellows-sealed cage-type regulating valve is a regulating valve with pressure balance. The valve body has an S-flow channel type passage, with small pressure drop loss, large flow rate, wide adjustable range and high flow characteristic accuracy. The low-leakage bellows-sealed cage-type regulating valve not only has the advantages of cage-type regulating valves, but also has a sealing ring between the valve core and the valve cage, reducing the leakage. The full series of upper valve covers adopt bellows-sealed structure, which can completely eliminate the possibility of medium leakage from the valve stem movement gap to the outside. When equipped with the RSMF series actuators, it has a compact structure, large output force and long service life. Therefore, it is widely used in automatic control systems of highly toxic, strongly corrosive, radioactive and rare and precious media. *CSW701Bellows Seal small-Port single-seat control valve *CW701 Bellows Seal single-seat control valve *CW702 Bellows Seal caged globe control valve *CLW702 Bellows Seal Low-leakage bellows caged globe control valve
● The core feature is to utilize the bellows as the dynamic sealing element, replacing the traditional packing seal.
● It adopts a leak-free design. The bellows completely isolates the valve stem from the medium, effectively preventing the medium from leaking out through the outer surface of the valve stem.
● It has strong pressure resistance. The metal bellows can withstand high pressure and has stable sealing performance.
● There is no friction from packing materials, and the movement resistance of the valve stem is small, improving the adjustment accuracy and response speed.
● It avoids the valve stem getting stuck due to particles invading or hardening as in the traditional packing seal, reducing the risk of jamming.
◎ Material: WCB、CF8、CF8M、CF3、CF3M
◎ Nominal Size: DN15~DN300
◎ Nominal Pressure: PN16、PN25、PN40、PN63、PN100、CL150、CL300、CL600
◎ Applicable Temperature: Normal Temperature Type P: -17℃ to +230℃
High Temperature Type EI: +230℃ to +350℃
Low Temperature Type LE-I: -45℃ to -17℃
◎ Operator: pneumatic, electric, etc.
◎ Application Range: Suitable for automatic control systems in industries such as petroleum, chemical engineering, metallurgy, etc., for highly toxic, strongly corrosive, radioactive and rare precious media.
This product is a new type top entry combination ball valve,the seat can be installed and move around the body. Through the thread, the outer margin of the seat connected to the retainer ring. There is spring on the support cover, which installed on the valve body, and the retainer ring can compress spring.
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.
The valve disc of the Cryogenic Swing Check Valve adopts a cantilevered swing structure, combined with precisely machined valve seat sealing surfaces, to achieve rapid response and reliable sealing, effectively preventing the reverse flow of the medium. The overall design of the valve complies with international standards such as BS 6364 and ISO 28921, and is suitable for low-temperature conditions in air separation plants, liquefied natural gas storage and transportation, and the chemical industry.