Cast Floating Metal Seated Ball Valve

Cast floating metal seat ball valve is an industrial valve with a special structure. Its core features are ‌cast valve body‌, ‌floating ball‌ and ‌metal sealing valve seat‌. The comprehensive search results are analyzed as follows:

‌Core definition and structural features‌
‌Cast valve body‌

The valve body is made of ‌cast steel technology‌ (such as WCB material), with low cost and good pressure resistance, suitable for medium and low pressure pipelines (PN16~PN25/Class150~300).

Typical materials include carbon steel, stainless steel, etc., suitable for non-corrosive media such as water, steam, and oil.
‌Floating ball design‌

The ball has no fixed support shaft and is only connected on one side of the valve stem; under the pressure of the medium, the ball can be slightly displaced to the outlet end, pressing the valve seat to form a seal.

The structure is simple and compact, and only 90° rotation (1/4 turn) is required for opening and closing.
‌Metal valve seat seal‌

The valve seat and the ball adopt ‌metal-to-metal hard seal‌ (such as cladding carbide), with a surface roughness of ≤Ra0.2, wear-resistant and high-temperature resistant.
Bidirectional sealing is achieved through spring preload + medium pressure, suitable for medium containing particles and fibers (such as slurry, ash).

 

Cast Floating Metal Seated Ball Valve

 

Applications

‌Petroleum and Natural Gas‌: Crude oil transportation, natural gas branch pipeline cutoff (medium and low pressure pipelines below DN50).
‌Electricity/Heating‌: Steam system, boiler feed water control (temperature ≤425°C).
‌Environmental Protection/Water Conservancy‌: Sewage and ash transportation pipelines containing suspended particles.
‌Food and Pharmaceutical‌: Non-corrosive fluid filling system (must meet hygiene standards).
‌Note‌: Ultra-high pressure (>Class600) or deep cold (<-46°C) conditions require fixed ball valves.

Function‌
‌Safety cutoff‌: Quickly cut off high-risk media (such as natural gas, high-temperature steam) to prevent leakage accidents.
‌Process Control‌: Adjust the flow of solid-containing media to ensure continuous production (such as mining slurry transportation).
‌Cost Optimization‌: Reduce procurement costs by 30% compared to fixed ball valves, suitable for projects with limited budgets.

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