2 Piece Flanged Ball Valve

It holds up great even with frequent use, and works perfectly for pipelines in chemical plants, water treatment facilities, power stations and other general industrial lines.

We’re a professional valve manufacturer with ISO and API certificates. We use modern production machines and check every product carefully during production, so all items live up to international standards. We can also do OEM and ODM custom work, and we accept orders with low minimum quantities.Our well-made valves are sold worldwide and earn consistent trust from global buyers.

What’s the difference between single-piece and 2-piece Flanged ball valves?

The main difference lies in the body structure and maintainability:

1.Single piece (1PC) ball valve: The body is one-piece, compact and low-cost. It is mostly threaded and not easy to disassemble or repair on site. It is usually used for small-size, low-pressure applications.

2.2 piece (2PC) ball valve: The body is made of two bolted-together parts. This design allows full disassembly for inspection, cleaning and maintenance without removing the entire valve from the pipeline. It is commonly used in flanged, higher-pressure and industrial-grade applications like our 2 piece flanged ball valve.

Key Attributes

What’s a flanged ball valve used for?

Flanged ball valves are the go-to choice for reliable flow control in industrial piping systems. They’re built to handle liquids, gases, steam, and even some light slurries, making them versatile for all kinds of industries. You’ll find them widely used in petrochemical and oil & gas pipelines, water treatment and wastewater facilities, power plants and heating systems, plus food & beverage and pharmaceutical manufacturing lines.

What really sets flanged ball valves apart is their connection method. Compared with threaded valves, flanged types bolt straight to the pipe with a gasket in between. This connection is much stronger, seals extremely well, and makes installation and alignment much simpler on site.

That’s why they are widely used for large pipes and high-pressure working conditions, where safe and stable performance is always the priority. Another big advantage is that they can be easily removed for inspection or maintenance, which helps save plenty of time during system shutdowns.

A standard 2-way ball valve runs on a basic 90-degree turn operation. Inside the valve body sits a hollow ball fitted with a straight bore, surrounded by reliable sealing parts. When you turn the lever parallel to the pipeline, the hole in the ball matches the flow direction, allowing media to pass through smoothly with very little pressure loss.

Turn the handle just 90 degrees, so it’s perpendicular to the pipe, and the solid part of the ball now blocks the flow path completely, shutting off the line tight. That’s all it takes to go from fully open to fully closed, no multiple turns or adjustments needed. This design gives you fast, reliable on/off control, with minimal pressure drop and low risk of leaks—even after repeated use.

What’s the difference between Part 1 and Part 2 ball valves?

This is just industry shorthand for 1-piece vs 2-piece ball valves, referring to how the valve body is constructed, and it makes a big difference in how you use and maintain them:

Part 1 (1-piece ball valve): The entire valve body is made as one single, solid piece. Most of these are threaded, compact, and low-cost, which makes them popular for small-bore, low-pressure applications like home plumbing or simple industrial lines. The downside is you can’t take them apart—if the seals wear out or something gets stuck, you have to replace the whole valve. They’re not designed for disassembly or on-site repairs.

Here’s the 2-piece ball valve. As the name suggests, its body is made up of two sections held together by bolts, just like our flanged ball valve.

This design brings huge convenience for industrial use. You can simply undo the bolts to take the valve apart. Then you can clean the inside, change worn seals or clear blockages easily. Best of all, you don’t even need to take the whole valve off the pipe to do these jobs.

Overall, these valves are tough and easy to look after. They work really well for large pipes, high pressure environments and places that require frequent operation.