Structural Features:

Adopting a symmetrical structure, the valve stem and the ball are integrated, which can effectively transmit torque to the valve ball. A compensation and preloading spring as well as a slag-proof structure are arranged behind the valve seat to prevent the medium from entering the spring cavity and causing spring failure. The flow channel is lined with a wear-resistant sleeve, which can effectively extend the service life of the valve body and the ball.

 Main Technical Parameters

• Adopted Standards: ANSI B16.34a, ANSI B16.5, API 598, MSS.SP
• Nominal Diameter: DN2" - 20"
• Pressure: 150Lb - 900Lb
• Sealing Form: Metal hard seal, one-way double seal, two-way double seal

Materials:

• Valve Body: WCB, 304, 304L, 316, 316L
• Ball: 304, 316, F51 + NiB, WC
• Valve Seat: 316 + NiB
• Valve Stem: 316, 2Cr13
• Packing and Gasket: Graphite

Applicable Temperature: -40℃ - 550℃

Applicable Medium: Slag water, gray water, black water, crystalline mixtures, coal slurry, pulverized coal and other powders.

Valve Driving Mode: Manual, Pneumatic, Electric

Minimum Valve Opening and Closing Time: < 3 seconds

Valve Trouble-free Operating Time: ≥ 8000 hours

 Note: This type of valve is designed based on drawing on foreign advanced technologies and according to the characteristics of the slag discharge system of coal water slurry gasification process equipment. It operates under extremely harsh working conditions with frequent opening and closing, high slag content in the medium and high working temperature. The valve is required to open and close quickly and reliably, and have strong resistance to erosion and wear.