The forged floating ball valve is a robust, reliable, and versatile component essential for controlling fluid flow in various industrial applications. As the name suggests, this valve is produced by forging—resulting in a forged steel floating ball valve body with superior strength, toughness, and resistance to cracking compared to cast valves. The term “floating” refers to the design of the ball inside the valve, which is not fixed but rather “floats” between two seats. This floating ball valve design allows the ball to move slightly in response to pressure from the fluid, ensuring a tight seal. Forged construction provides better mechanical properties and resistance to wear and tear, extending the valve's service life. The floating ball design ensures a tight seal, reducing the risk of leaks. The ball is pressed against the downstream seat by the pressure of the fluid, enhancing the sealing capability in the most demanding industrial valve applications.
Features for Forged Floating Ball Valve
Applicable Standards
Basic Design: API 6D, ISO 17292, BS 5351, API 608
Face to Face: ASME B16.10
Flange End: ASME B16.5
Butt Welding End: ASME B16.5
Test and Inspection: API 598
Fire-safe Test: API 607 / API 6FA
Fugitive Emission Test: ISO 15848-2
Pressure & Temp.: ASME B16.34
Sour: NACE MR 0175
Blow-out Proof Stem
The stem is designed with a shoulder that is retained by the body preventing the stem from being blown out from internal pressure—an essential safety design for any forged floating ball valve.
Anti-static Device
The anti-static device is designed between the ball, stem, and body to maintain electrical continuity and avoid static charges.
Unique Seat Design
A special integral seat lip provides a tight seal under both low and high pressure while maintaining low operational torque—enhancing the efficiency and lifespan of the forged floating ball valve.
Fire Safe Design
External leakage prevention:
A fire-safe gasket and a metal-to-metal sealing face are designed in the body-cap area, and a metal-to-metal sealing face is designed in the stem area. After a fire, the body-cap gasket and metal sealing face prevent external leakage.Internal Leakage Prevention:
After the soft seat is destroyed by fire, the fluid pushes the ball against the metal sealing face on the valve body to prevent flow.
Adjustable Packing Design
KFTE forged floating ball valves are designed with an adjustable stem packing flange. This allows tightening of the packing bolts to ensure sealing performance and optimal ball valve working. The packing material can be graphite or PTFE V-packing. There is also an available live-loaded packing design for severe service. This design utilizes disc springs to maintain adequate tightness to the packing.
Locking Device
Both lever and gearbox operated valves offer a locking point at the full open and full closed positions to protect valve against unauthorized operation. Please note the padlock is not provided standard, it can be provided upon request.
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