Slag locking ball valve, ball valve

The slag locking ball valve and the flushing valve are bidirectional rotating full-section on-off ball valves with a fixed ball structure. The valve adopts a high-temperature slag locking structure. The metal and protective coatings of the valve body and internal components have good usability against impact, corrosion and abrasion.

Anti-blowout design of the valve stem of the slag locking ball valve

The valve stem and the ball are independent. The end of the valve stem close to the ball is designed as an integral T-shaped structure. The pressure cover flange can block this T-shaped valve stem to prevent it from being blown out by the pressure in the valve cavity of the slag lock ball valve.

Double piston effect of the valve seat of the slag locking ball valve

Both the front and back of the valve seat can form an area difference. Under the action of the upstream and downstream media or the pressure in the middle cavity, the valve seat can be pushed towards the ball, achieving the sealing of the slag lock ball valve.

The piston effect is a sealing form that uses pipeline pressure to push the valve seat to hold the ball.

When using a double-piston effect valve seat, once the upstream valve seat leaks, the pressure enters the middle chamber and pushes the downstream valve seat. Due to the double-piston effect valve seat design, the downstream valve seat will conversely hold the ball to achieve sealing. Therefore, the sealing of the double-piston ball valve is more reliable and it is applied in situations where the sealing requirements are extremely strict.

Anti-static device for slag locking ball valve

The valve stem of the metal slag lock ball valve is equipped with a spring grounding plug nail, which enables the ball, valve stem and valve body to come into contact, forming a conductive circuit. This can transfer the electric charge, thereby avoiding the accumulation of static electricity caused by friction during valve opening and closing or the accumulation of static electricity caused by fluid impact on the inner cavity of the valve body. This is because such static electricity accumulation is extremely dangerous for pipelines in some hazardous areas.

Strong fireproof design

Emergency glue injection device

Pressure relief in the middle cavity

The sealing surface is sprayed with super-hard metal

Pneumatic actuator of slag locking ball valve

Single-acting or double-acting cylinder type, air source connection 304SS

The air source is equipped with a filter pressure reducing valve, limit switch, solenoid valve, air source amplifier, air lock valve, quick exhaust valve, etc

Explosion-proof grades of limit switches and solenoid valves: ExdⅡCT4, CT6 grades.

The slag locking valve has the characteristics of low fluid resistance, smooth flow, quick opening and closing, and easy automatic control, and thus has been widely applied. The floating, fixed and U-shaped series of high-performance slag locking valves are applied in industries such as coal chemical engineering, petroleum, power, metallurgy and mining.

Packing of Standard Packing: 

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 470 gallon liquid totes Special package is available on request. E FORUs’  is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition