Carbon steel manual float valve, manual float valve, carbon steel ball valve

The carbon steel manual floating ball valve is made of carbon steel (commonly WCB cast steel, A105 forged steel) as the main material, featuring a floating ball structure and hand-operated / worm gear-driven switch type industrial valve. It is mainly used for connecting and cutting off the medium in the pipeline; the ball body has no fixed shaft and achieves sealing by pressing the outlet end valve seat with the medium pressure.

Main components:

Valve body / Valve cover: Cast / forged carbon steel, capable of withstanding system pressure;

Floating ball: Cooperates with the valve seat to achieve sealing, without a lower supporting shaft;

Valve seat: Soft seal (PTFE/PPL) or metal hard seal, suitable for different temperature and pressure;

Valve stem: Bottom-mounted anti-slip structure, flat head and hand handle have no misalignment connection;

Manual drive: Hand lever (for small diameter) or worm gear box (for large diameter, with force-saving function), with full open / full close locking holes;

Packing chamber: Graphite / PTFE packing, with anti-static and fireproof sealing design.

Working principle:

Rotate the manual handle (90° switch) to make the valve stem drive the ball to rotate;

When the through-hole of the ball is parallel to the axis of the pipeline, it is fully open; when it is perpendicular, it is fully closed;

The main feature of the floating structure is that the medium pressure pushes the ball to the outlet side valve seat, and the higher the pressure, the tighter the seal (mainly one-way sealing);

In the event of a fire, if the soft seal fails, the metal ball and the metal valve seat can form an emergency metal seal, which complies with the API 607/API 6FA fire protection standards.

Application scenarios:

Petrochemical industry, oil refineries, natural gas transmission pipelines;

Steam and condensate systems for power (thermal power / nuclear power);

Metallurgy, papermaking, urban heating pipelines;

Industrial water supply and drainage, shut-off valves at compressor / pump outlets;

Branch lines / station valves of offshore platforms and long-distance pipelines.

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