Features

• Overall die forging, forging ratio ≥4, compact structure and excellent mechanical properties.

• One-piece design, less leakage points, good sealing performance, safe and reliable, and effectively ensure long-term operation of the valve.

• Straight-through channel, low flow resistance coefficient, no pressure drop, no heat loss.

• Self-owned company material design standards, large wall thickness, effectively extending the service life.

• Floating ball design, the ball has a large space for movement, and the seats are easy to align each other. The higher of the pressure, the more reliable the sealing.

• 90 degree rotation completes the valve switch, the switch is fast.

• The supercritical and ultra-supercritical unit pipelines of the thermal power station are high-temperature, high-pressure hydrophobic, mortar, fly ash and other granular media. The working conditions are harsh, and the imported traps are generally used. Y-type globe valves and ball valves are usually used for the selection of imported valves. In the course of use, the shut-off valve has the disadvantages of large flow resistance, difficulty in opening and closing, large installation space and short service life; the imported ball valve has a long service life, but the price is expensive, the delivery time is long, and the after-sales is not timely. In response to the above situation, KOVOK has developed a compact, affordable, long-life power plant special hydrophobic ball valve to replace the imported ball valve.

Performance Parameters

Nominal diameter: 3/4〞~2 1⁄2 〞 (DN20~DN65)

Nominal pressure: Class 600 ~ Class 4500

Applicable temperature: - 29 ° C ~ 610 ° C

Connection type: Welding

Body material: A105, F22, F91, F92

Ball material: Inconel 718+ chromium carbide

Operation type: Handle, worm gear, electric, pneumatic

Application Condition

Boiler hydrophobicity, steam turbine hydrophobicity, drum exhaust, soot blower isolation and so on in thermal power plants (including the self-supplied power plants).