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
RAYS Through Conduit (T.C.) Slab Gate Valves are manufactured with a full bore port, rising stem OS&Y and with floating seats and gate, pressure energized, for a bubble tight shut off upstream and downstream under both low and high differential pressure. Double block and bleed capability and automatic relief of excess body pressure are a standard feature of this seat design. The smooth, continuous bore minimizes turbulence within the valve and when in the open position it produces a pressure drop equivalent to a portion of pipe of the same length and diameter. The seat faces are outside the flow stream and therefore protected from the erosive action of the flow. Pigs and scrapers can be run through the valve without damage.
Stop Check Valve, A multi-purpose valve that functions as both a stop valve and a check valve. Its structure is similar to that of a globe valve, but the stem and disc are not fixed. When the stem is lowered and the disc is pressed tightly on the seat, it acts as a stop valve; After the stem rises, the check valve acts. On lines that require both a stop valve (or gate valve) and a check valve (such as the outlet of a water pump), using a stop check valve can save installation costs and space. In the opening and closing process, because the friction between the valve disc and the sealing surface of the valve body is smaller than that of the gate valve, it is more wear-resistant.
The Axial Flow Check Valve has a unique axial flow design, and its spool is aligned with the flow direction, significantly reducing the resistance loss when the fluid passes through. The spool is driven by spring or fluid pressure for quick opening and closing. When the fluid is flowing forward, the spool is pushed open and the fluid passes smoothly. When the fluid flows in reverse, the spool is quickly closed, effectively preventing backflow, and ensuring the stability and safety of the system operation.