Pneumatic Actuated Butterfly Valve Manufacturer in Europe

Valvesonly Europe is a specialized Pneumatic Actuated Butterfly Valve Manufacturer in Europe, with production facilities in Germany and Italy. These valves are designed for rapid, reliable shut-off or throttling using compressed air actuators. Available in concentric, double offset, and triple eccentric designs, our valves are suitable for large-diameter pipelines and critical industrial applications where automation and durability are essential.

Function & Working

Pneumatic actuated butterfly valves are quarter-turn valves combined with a rotary pneumatic actuator. The actuator uses compressed air to rotate the disc 90° for quick opening or closing.

• Single-acting actuators provide fail-safe spring return to open or close.

• Double-acting actuators deliver equal torque in both directions for compact design.

• Control options include on/off and modulating service.
  Automation is enhanced with accessories such as solenoid valves, air filter regulators, limit switches, position indicators, smart positioners, and manual override gear units.

Advantages

Fast and reliable operation with low air consumption
Available in concentric, double offset, and triple eccentric configurations
Resilient or metal seated designs for tight shut-off
Wide torque range to suit valves up to DN2000
ISO 5211 mounting interface for actuator interchangeability
Compact design reduces installation space and cost
Suitable for both on/off and throttling applications

Actuator Details

Air Supply Pressure: 5.5 – 8 bar (80 – 120 psi)
Torque Output: 10 Nm – 10,000 Nm (size dependent)
Operation Types: On/Off, Modulating Control
Accessories: Solenoid valves, limit switches, positioners, feedback units, manual overrides
Standards: ISO 5211 actuator mounting, NAMUR interface for accessories

Testing & Quality Validation

All valves and actuators are tested to API 598, EN 12266, and API 609 standards.
Hydrostatic body testing for pressure integrity
Seat leakage testing at ambient and rated pressure
Functional cycle testing of actuator and valve assembly
Fugitive emission testing to ISO 15848-1 / API 641 when specified
Full compliance with European CE and PED requirements

Materials of Construction

Technical Specifications

Size Range: DN50 – DN2000
Pressure Class: PN6, PN10, PN16, PN25; ASME Class 150 / 300 available
Temperature Range: –40°C to +250°C (depending on body and seat material)
Design Types: Concentric (resilient seated), Double Offset (high-performance), Triple Eccentric (metal seated, zero leakage)
End Connections: Wafer, Lug, Double Flanged
Operation: Pneumatic Single Acting (spring return) / Double Acting
Design Standards: API 609, EN 593, ASME B16.34, ISO 5211 actuator mounting

Industries Served

Oil & Gas and Petrochemical plants
Power generation and district heating networks
Marine and offshore installations
Water treatment and desalination plants
HVAC and fire protection systems
Chemical and process industries
Pulp & Paper and Steel industries