Ball Valve

Ball Valve Manufacturers in USA

SVR Global design, cast, and machine industrial ball valves for oil and gas, chemical processing, water treatment, and power generation across US. Our valves are built to ASME B16.34 and API 6D standards, with 2-piece, 3-piece, floating, and trunnion mounted configurations available across a full size and pressure range. Every valve is tested and shipped with material traceability documentation on request

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Specifications of Ball valve:

Ball Valve Design and Construction:

• The ball valve is made up of four basic components, body, ball, stem, and seats. 

• The body encloses the valve and connects it to the pipeline. 

• The ball is located between the seats, which are pressed tightly against the ball to create seals on both sides of the flow path. 

• The stem links the ball to the handle outside the body, allowing the transfer of rotary motion, whereas the packing on the stem avoids leaks to the environment. 

• The body design is different depending on whether it is top entry or side entry.

Types of Ball Valves:

• Cast Iron and cast steel ball valve

• Double block and bleed ball valve

• Floating Ball valve

• Forged Ball valve

• Fully welded ball valve

• Investment casting Ball valve

• Trunnion Ball valve 

Each type suits a different combination of pressure, size, and maintenance requirement see the comparison below for details.

Ball Valve Bore Configurations:

• Full port - the bore matches the internal pipe diameter, giving unrestricted flow and lower pressure drop. Common where flow rate matters, such as pigging lines.

• Reduced port - the bore is one size smaller than the pipe, which lowers cost and valve weight for applications where a slight flow restriction is acceptable.

• V-port - the ball has a V-shaped notch that allows proportional flow control rather than simple on/off operation.

Ball valve Materials of Construction:

Ball Valve Pressure Class and Temperature Ratings:

• Rated Class 150 to Class 2500 under ASME B16.34, with exact class depending on body material and seat type

• PTFE seated valves operate up to approximately 400°F, suited for standard industrial and chemical service

• Metal seated valves extend range to roughly 800°F for high temperature service like steam and thermal oil

• Cryogenic variants available for applications well below 0°F

• Cryogenic designs use extended bonnets to keep packing away from the cold process fluid, preventing seal failure and ice buildup

End Connection Options:

• Flanged (raised face or ring type joint)

• Butt weld

• Socket weld

• Threaded/NPT

• Wafer

Flanged and weld end connections are typical for larger pipeline sizes, while threaded connections are common on smaller bore, lower pressure lines.

Manual and Automated Ball Valves:

Smaller valves are usually operated by a hand lever, while larger or high torque valves use a gearbox for controlled, lower effort operation. For remote or automated systems, Pneumatic and electric actuators mount directly to the valve stem, allowing the valve to open or close on a signal from a control system. Actuator sizing depends on the valve's breakaway and running torque at the specified pressure.

Applications of Ball valve:

• Oil and gas production and pipeline transmission - Reliable flow control for high pressure hydrocarbon systems.

• Chemical processing lines - Corrosion resistant valves for aggressive fluid handling.

• Water and wastewater treatment - Durable isolation and flow control across treatment stages.

• Power generation plants - High temperature rated valves for steam and boiler systems.

• Marine and offshore piping systems - Saltwater resistant valves for shipboard and subsea use.

Industry Standards and Testing:

• • API 6D - pipeline valve design and testing

  • API 608 - metal ball valve design standard

  • API 598 - inspection and pressure test procedures

  • API 607 / API 6FA - fire-safe design certification

  • ASME B16.34 - pressure temperature ratings

  • NACE MR0175 / MR0103 - material requirements for sour (H2S) service