Pneumatic Wafer Ball Valve

The Pneumatic Wafer Ball Valve combines a compact wafer-pattern floating ball valve with an ISO 5211 direct-mount pneumatic actuator to provide reliable automated quarter-turn isolation for industrial process pipelines.
Compared with conventional flanged ball valves, the wafer design significantly reduces installation space, assembly weight, and overall system cost while maintaining dependable shut-off performance.
Designed for chemical processing, water treatment, OEM equipment, and utility systems, this valve delivers fast pneumatic operation, low operating torque, and long service life in demanding industrial environments.

Compact Wafer Design
The short face-to-face body complies with EN 558 Series 100 dimensions, allowing installation where piping space is limited.
Benefits

• Reduces installation space
• Lowers pipeline weight
• Suitable for skid-mounted equipment
• Ideal for compact OEM machinery

Low Operating Torque
A CNC-machined mirror-polished ball minimizes friction between the ball and seat.
An integrated cavity pressure relief hole automatically relieves excessive cavity pressure caused by thermal expansion.
Benefits

• Smaller pneumatic actuator required
• Lower actuator air consumption
• Longer seat life
• Reduced operating costs

Blow-Out Proof Stem with Anti-Static Protection
The internally loaded stem incorporates an integral shoulder that prevents stem ejection under internal pressure.
Dual anti-static grounding springs maintain electrical continuity between the ball, stem, and valve body.
Benefits

• Improved operator safety
• Prevents static electricity accumulation
• Suitable for hydrocarbons, solvents, and combustible gases
• Complies with industrial safety requirements

Heavy-Duty Pneumatic Actuator
The rack-and-pinion actuator features a hard-anodized aluminum housing for corrosion resistance and long operating life.
Available actuator options include:

• Double Acting (DA)
• Spring Return (SR / Fail Safe)

The actuator mounts directly to the valve through the ISO 5211 interface without additional brackets, reducing backlash and torque loss.

Every valve undergoes a documented inspection process before shipment.
Quality procedures include:

• Positive Material Identification (PMI) on pressure-retaining components
• Spectrometer chemical composition analysis of castings
• CNC dimensional inspection
• 100% shell and seat leakage testing according to API 598
• Post-assembly actuator torque verification
• Full production traceability
• EN 10204 3.1 Material Test Certificates supplied with shipment

The Pneumatic Wafer Ball Valve is widely used in:

To maximize service life, the following applications are not recommended.
Continuous Throttling
Floating ball valves are designed for full-open or full-close isolation.
Continuous throttling causes uneven seat wear and premature leakage.
For flow control applications, V-port ball valves are recommended.

Severe Slurry Service
Large solid particles may accelerate soft-seat erosion.
Metal-seated ball valves are recommended for highly abrasive media.

Pigging Pipelines
The wafer body design does not provide full-port pipeline continuity required for pigging operations.

Our engineering team provides application assistance including:

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