The plug valve has a reasonable product structure, reliable sealing, excellent performance, and beautiful appearance;
The plug valve has an inverted pressure-balanced structure and light-switching action;
An oil groove is provided between the valve body and the sealing surface, and sealing grease can be injected into the valve seat through the oil nozzle at any time to increase the sealing performance;
The material of the parts and the flange size can be reasonably selected according to the actual working conditions or user requirements to meet various engineering needs.
Material: Carbon Steel, Stainless Steel, Alloy Steel
Nominal Size: 1/2” : 24” DN50-DN600
Pressure Rate: 150Lb – 2500Lb PN10-PN420
Temperature Range: -29°C~180°C
Operator: Manual, Pneumatic, Electric, etc...
Application range:Cut off or connect pipeline media in various working conditions such as petroleum, chemical, pharmaceutical, fertilizer, and power industries.
◎ Design Standard: API599、 API6D、GB/T 12224
◎ Pressure Temperature Rate: ASME B16.34、GB/T 12224
◎ Face to Face: ASME B16.10 GB/T12221
◎ Flange Standard: ASME B16.5、GB/T9113、 JB/T79、 HG/T20592
◎ Butt Weld Standard: ASME B16.5,GB/T12224
◎ Fire Safe: API607
◎ Pressure Test: API598,GB/T13927
The Non-Rising Stem Gate Valve is also called the rotating stem gate valve. Stem and nut are arranged on the gate plate, handwheel rotation drive valve stem rotate to lift the gate, usually there is a trapezoidal thread at the bottom of the valve stem and the rotation movement is turned into a linear motion through the limit slot between the valve stem and the gate body and the gate body and the gate, that is, the operation torque is turned into operation thrust. When the valve is turned on, when the height of the gate is equal to the diameter of the valve 1: 1: 1, the channel of the fluid is completely unblocked, but at the run, this position cannot be monitored. In actual use, the vertex of the valve stem is used as a sign, that is, the position that is unmoved as its full opening position. The non-rising stem gate valve has the design characteristics of the ordinary wedge-type gate valve. The valve body has a guide mechanism, which can prevent the gate from rotating when the gate is turned on or closed, ensuring that the seal of the gate on the valve seat is accurate accordingly. At the same time, the wedge valve does not rub with the valve seat before turning off, thereby reducing the wear of the cover and effectively extending the service life of the valve.
The dual plate check valve features two semicircular, spring-loaded valve discs mounted on a central vertical pivot. When the valve opens, the force of the fluid and the spring act at the center of the disc, causing it to open from the base first. This design minimizes wear on the seal during opening, enhancing its durability. As the flow decreases, the discs slowly move back towards the seat due to the spring's force, ensuring a gradual closure. During backflow, the increased force on the discs leads to a faster closure, effectively reducing the risk of water hammer and hydraulic shocks. The spring’s force closes the top end of the disc first, preventing damage at the disc's base and prolonging the seal's lifespan.
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.