3PC Butt-welded Ends Stainless Steel Ball Valve Extended Stem

The 3PC Butt-welded Ends Stainless Steel Ball Valve Extended Stem features butt-welded ends for permanent pipeline connection and an extended stem for applications where the valve operating point needs to be positioned away from the pipe. The three-piece body allows internal components to be accessed for maintenance, while the ISO 5211 mounting pad supports direct installation of pneumatic or electric actuators.

Main Dimensions

Product Features

1. Butt-Welded Pipeline Connection

The valve uses butt-welded ends manufactured according to ASME B16.25. Welding the valve directly into the pipeline provides a fixed connection without threaded or flanged joints, making this configuration suitable for permanent industrial piping installations.

2. Extended Stem Configuration

The extended stem provides additional operating clearance between the handle or actuator and the pipeline. It is useful where insulation, pipe arrangement or installation conditions limit access to a standard valve stem.

3. Three-Piece Body for Maintenance

The three-piece construction provides access to the internal valve components when inspection or replacement is required. The seat and sealing components can be serviced without replacing the complete valve assembly.

4. Stainless Steel Valve Construction

The 3PC Butt-welded Ends Stainless Steel Ball Valve Extended Stem uses ASTM A351 CF8M (316) for the body and ASTM A182 F316 for the ball and stem. The RPTFE seat is specified for the listed temperature range of -25℃ to 150℃.

Actuator Mounting

The valve is equipped with an ISO 5211 mounting pad for direct actuator installation. Pneumatic or electric actuators can be selected according to valve size, operating torque and control requirements. The actuator mounting interface should be checked before ordering to ensure compatibility.

Standards and Inspection

Design and manufacturing follow ASME B16.34, with butt-welded ends based on ASME B16.25. Valve testing and inspection are carried out according to API 598. Pressure-temperature ratings are also referenced to ASME B16.34.

Production inspection covers material verification, pressure testing, sealing inspection and finished valve checks. Material test reports and applicable product documentation can be provided according to the valve configuration and order requirements.

Applications

The 3PC Butt-welded Ends Stainless Steel Ball Valve Extended Stem is intended for industrial piping systems requiring a permanent welded connection and accessible valve operation. Typical applications include chemical processing, petrochemical systems, pharmaceutical equipment, food and beverage processing, power generation and water treatment.

Before selection, confirm the pipeline medium, pressure, temperature, pipe size, welding specification and available installation space. The valve materials and seat configuration should also be checked for compatibility with the service medium.

FAQ

1. What are the main applications of the 3PC Butt-welded Ends Stainless Steel Ball Valve Extended Stem?

It is used in industrial piping systems where a welded connection and extended valve access are required. Applications include chemical, petrochemical, pharmaceutical, food and beverage, power and water treatment systems.

2. What standard applies to the butt-welded ends?

The butt-welded ends are specified according to ASME B16.25. The welding specification should be checked against the pipeline design before installation.

3. Can an actuator be installed directly?

Yes. The valve has an ISO 5211 mounting pad for pneumatic or electric actuator installation. Actuator selection should be based on valve size, operating torque and control requirements.

4. What materials are used in the standard configuration?

The body is ASTM A351 CF8M (316), while the ball and stem are ASTM A182 F316. The standard seat is RPTFE (PTFE+15%fv). Other materials are available upon request.

5. What is the maximum pressure and temperature range?

The listed maximum pressure is 285PSI, with a temperature range of -25℃ to 150℃. Actual operating limits should be confirmed according to valve size, medium and applicable pressure-temperature ratings.

6. Can the valve be customized?

Yes. Other materials and component configurations can be supplied according to the required medium, pressure, temperature and installation conditions.