The Power Plant Check Valve has low fluid resistance, and the internal medium passage of the valve body is straight. When the medium flows through the stop valve, its flow direction does not change. It adopts self-tightening pressure sealing, and the two ends of the valve are usually welded connections. The valve disc closes quickly, the water hammer pressure is small, the shape structure is simple, the manufacturing process is good, the sealing performance is good, and the sealing surface is less eroded when fully open. It has a wide range of applications.
Material: Carbon steel, stainless steel, alloy steel, etc
Nominal Size: NPS2~NPS24/DN50~DN600
Pressure Rate: Class600~ Class 2500/PN100~PN420
Temperature Range: -29℃~650℃
Operator: Manual, Pneumatic, Electric, etc..
Application range: Power Plant Check Valve is generally used in the use of conditions are more harsh occasions. Such as high-temperature and high-pressure thermal power plants and other power industry, petroleum refining and other fields.
◎ Design Standard: GB/T12224、ASME B16.34、NB/T47044
◎ Pressure Temperature Rate:GB/T12224、ASME B16.34、NB/T47044
◎ Face to Face: GB/T12221、NB/T47044
◎ Flange Standard: GB/T9113、ASME B16.5
◎ Butt Weld Standard: GB/T12224、NB/T47044
◎ Fire Safe: API 6FA
◎ Pressure Test: GB/T26480
Expanding Slab Gate Valve is a type of slide valve that utilizes parallel gate plates as its closing mechanism. These plates are equipped with a spreading mechanism to enhance functionality. The force pressing the plates against the valve seat is regulated by the medium pressure acting on either a floating gate plate or a floating valve seat. In dual gate flat gate valves, the inter-plate spreading mechanism provides additional pressing force. This valve is designed with innovative features including low operating torque, rapid actuation, minimal vibration, extended operational life, and enhanced safety. It is mainly used for the isolation or venting of gases and liquids in pipeline systems.
The API 6A High Pressure Slab Gate Valve is specially designed for high-pressure pipeline systems in industries such as petroleum, natural gas, and chemical engineering. It features a valve body made of high-quality alloy steel, which is precisely machined and rigorously tested to ensure reliable performance under high pressure, high temperature, and corrosive medium conditions. The unique flat gate plate design enables two-way sealing, allowing for flexible opening and closing with low flow resistance. It is an ideal choice for long-distance pipelines, refining and chemical plants, and high-pressure fluid control systems.
The cryogenic butterfly body can be provided in twostructural forms, namely flange connection and butt.welding connection (both with inspection ports). The body with inspection ports can replace the valveinternals online, making maintenance work extremelysimple, which is conducive to the rational use ofresourcesand saving maintenance costs.The extended valve cover + drip tray design ensures thatthe temperature at the stuffing box is above zero degrees!so that the connection between the stuffing and the stemwill not freeze and lock.