2″ Flanged Ball Valve, Full Port & Stable Flange Connection Pipeline Cutoff Valve
2″ flanged ball valve features stable flange connection and full port design, meets API 608, ideal for wastewater, petrochemical pipeline isolation control.
Description
The 2‑inch flanged ball valve is part of the DN50–DN300 medium‑bore series, primarily designed for on‑off control of industrial media and emergency isolation of faulty pipeline sections. It integrates two key design features: a flange sealed connection structure that ensures even load distribution across the sealing faces, offering excellent resistance to vibration and shock—making it particularly reliable for long‑term buried service or plant environments with frequent mechanical disturbances, with minimal risk of loosening or leakage; and a full‑bore ball design that provides an unobstructed flow path with no reduction in cross‑section, resulting in pressure losses close to those of a straight pipe. This combination guarantees both connection stability and energy‑efficient fluid transport.
Technical Specifications
| Parameter | Detail |
|---|---|
| Nominal size | NPS 2″ (DN50) |
| Pressure ratings | Class150/300, PN16, PN40 |
| Flange standard | ASME B16.5 RF (raised face) |
| Body materials | WCB carbon steel, CF8 (304), CF8M (316) stainless steel |
| Applicable codes | API 608, API 598, ISO 17292 |
| Temperature range | –29°C ~ 200°C |
Structural & Actuation Features
An ISO 5211 top mounting pad is provided as standard, enabling the addition of pneumatic or electric actuators to convert the valve into an actuator operated flanged ball valve for automated control. Two sealing options are available: PTFE soft‑seat for reclaimed water or clean water services, and metal‑hard seated for high‑temperature chemical media.
Typical Applications & Field Case
These valves are widely employed in reclaimed water treatment, petrochemical cooling water circuits, municipal water supply, and gas transmission systems. A notable example is the Selly Oak Water Works (Bristol Rd, Birmingham B29 6NA, United Kingdom), where the city’s reclaimed wastewater network has extensively deployed 2″ flanged ball valves. The robust flanged joints effectively prevent leakage, while the full‑bore passage avoids clogging from silt or debris, significantly reducing failure rates under continuous, year‑round operation.
Quality Assurance & Customization
Every valve undergoes both hydrostatic and pneumatic leak tests before shipment and holds internationally recognized industrial certifications. Additional options include anti‑corrosion coatings and specially formulated sealing materials, which can be tailored to suit specific medium corrosivity or process requirements.
