1. Low torque operation - Rotating valve seat design, easy and effortless opening and closing
2. Bidirectional zero leakage - Precisely ground sealing surfaces, in line with international standards
3. High pressure and high temperature resistance - Maximum pressure rating of PN100, temperature range of -196℃ to 550℃
4. Long service life - Hardened ball body, self-compensating valve seat design
5. Full diameter flow - Flow channels are of the same diameter as the pipeline, resulting in low pressure drop
6. Multiple drive methods - Supports manual/ pneumatic/electric control
7. Easy maintenance - Modular design, valve seats can be replaced quickly
◎ Design Standard: API 6D,API 608,GB/T12237,GB/T12238,JB/T14317
◎ Material: Carbon steel, Stainless steel, Alloy steel.
◎ Nominal Size: DN200～DN3000,NPS 8～NPS120
◎ Pressure level: ≤PN40，≤CLass300
◎ Temperature range: -40～200℃
◎ Operator: Manual, Pneumatic, Electric, etc..
◎ Application scenarios: Widely used in industries such as metallurgy, power, and municipal engineering, where bidirectional sealing is required for water pump outlets and pipeline systems.
The slow-closing check valve opens and closes the valve disc automatically due to the flow of the medium, and is a type of automatic valve used to prevent the backflow of the medium. It is mainly used to prevent backflow of the medium, prevent the reverse rotation of pumps and drive electric motors, and release the medium in containers. The check valve can also be used in pipelines that supply supplementary pressure to auxiliary systems where the pressure may rise above the system pressure.
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.
Compared with other valve products, High Temperature and High Pressure Slab Gate Valve is characterized by high temperature and high pressure. Among them, grooved flange is designed as a unique self-tight-seal structure. The higher the pressure, the more reliable the sealing performance. Due to the characteristics of performance and technical characteristics and working conditions, the product has also formed the characteristics of other products that cannot be replaced. This type of valve should generally be installed horizontally in the pipeline. The high-temperature and high-pressure gate valve has the design characteristics of ordinary wedge-type gate valves. The valve body has a guide mechanism to prevent rotation when the gate is turned on or closed to ensure that the sealing surface of 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.