Quick specifications
- Flange standardANSI / DIN / BS
- Size range½" to 24"
- Pressure classASME 150 – 2500
- BodySS304, SS316, CS, A105
- OperationLever, gear, actuator
A flanged ball valve has integral flanges on both ends and is bolted between pipeline flanges with gaskets. This makes installation and removal straightforward – no welding or threading on site – which is why flanged valves dominate in process plants, pumping stations and utility headers above 2".
As a flanged ball valve manufacturer in India, we supply flanged end valves in two-piece, three-piece, three-way, trunnion-mounted and lined designs.
Flange standards and facing
Flanges can be drilled to ANSI / ASME, DIN or BS standards, matching your pipe flanges. Raised-face is standard for most process lines; please specify if your line needs a different facing. Always share the flange standard and class with your enquiry – a “4-inch flanged ball valve” can have different bolt patterns under different standards.
Choosing a flanged valve design
- Two-piece flanged – the workhorse for general isolation.
- Three-piece – where in-line maintenance matters.
- Three-way flanged – to divert or mix flow.
- Trunnion mounted – large sizes and high pressure.
- PTFE lined flanged – corrosive acids and chemicals.
Installation notes
- Align pipe flanges before bolting – do not use the valve to pull pipes into position.
- Tighten flange bolts in a cross pattern to an even torque.
- Install in the open position after flushing the line, to keep debris away from seats.
- Large valves should be supported independently of the pipe.
More tips in our ball valve installation and maintenance guide.
Flanged Ball Valve – technical specifications
| Body material | Carbon Steel, ASTM A105 (forged); SS304 / SS304L, SS316 / SS316L, SS410, Duplex SS |
|---|---|
| Size range | ½" to 24" (15 mm to 600 mm) |
| Pressure rating | ASME Class 150 to 2500 / PN16 to PN420 |
| Flange drilling | ANSI / ASME, DIN, BS |
| Bore | Full bore and reduced bore |
| Seat & seals | PTFE, RPTFE, PEEK, Graphite; seals in Viton or NBR |
| Operation | Lever, Gearbox, Pneumatic, Electric, Hydraulic |
| Temperature | –29 °C to +550 °C body range; actual limit set by seat and seal material |
| Testing | API 598 / API 6D / BS EN 12266 / ISO 5208, as applicable |
Ranges shown cover the product family. The exact rating, size and temperature limit for your valve depend on body material, seat material and design, and are confirmed in our quotation and datasheet.
Key benefits
- Quick bolt-in installation and removal
- Strong joint for larger sizes and higher pressures
- Matches ANSI, DIN or BS piping
- Available manual or automated
- No hot work needed on site
Applications
- Process and utility headers
- Pump suction and discharge isolation
- Water treatment and pumping stations
- Hydrocarbon transfer lines
Industries served
Frequently asked questions
What flange standards do your flanged ball valves follow?
Flange drilling to ANSI / ASME, DIN or BS standards, as specified in your enquiry.
What is the largest flanged ball valve you supply?
Our flanged range goes up to 24" (600 mm). Larger, high-pressure sizes are typically trunnion mounted.
Can flanged ball valves be automated?
Yes. Flanged valves can be supplied with gearbox, pneumatic or electric actuators.
Related technical guides
- Ball Valve Installation and Maintenance: A Field Checklist
- Full Bore vs Reduced Bore Ball Valve: Which Should You Use?
