Pneumatic Actuated Butterfly Valve Manufacturer & Supplier in India

Speciality Valve is a Pneumatic Actuated Butterfly Valve Manufacturer and Supplier in India, delivering durable and automation-ready valves designed for reliable flow control in critical industries. Our valves are engineered to API and ISO standards, ensuring long service life and dependable performance.

Function & Working

Pneumatic actuated butterfly valves use compressed air to rotate the disc within the pipeline, providing quick isolation or regulation of flow. The actuator can be configured as double-acting (air to open and close) or spring-return (fail-safe position). With solenoid valves, positioners, and limit switches, they integrate seamlessly into automated control systems.

Types of Pneumatic Actuated Butterfly Valves

• Wafer Type

• Lug Type

• Concentric (Resilient-Seated)

• Double-Eccentric (High-Performance)

• Triple-Eccentric (Metal-Seated)

Types of Pneumatic Actuators

• Rack and Pinion

• Scotch Yoke

• Diaphragm

• Piston / Cylinder

• Rotary Vane

• Twin Piston

• Helical Spline / Helical Rotary

Advantages

• Quick quarter-turn actuation for isolation and throttling

• Compact, lightweight, and cost-effective design

• Wide seat options (EPDM, NBR, PTFE, Viton) for different media

• Fail-safe spring-return options for critical safety applications

• Compatible with solenoid valves, positioners, and limit switch boxes

• ISO 5211 and NAMUR compliant for standardized mounting

Materials of Construction

Technical Specifications

• Valve Sizes: DN50 – DN2000 (2″ – 80″)

• Pressure Ratings: PN10 – PN25 / ASME Class 150

• End Connections: Wafer, Lug, Flanged (RF/RTJ)

• Actuation Options: Double-Acting Pneumatic, Spring-Return Pneumatic

• Accessories: Solenoid Valves, Positioners, Limit Switch Boxes, Air Filter Regulators

• Standards: API 609, ASME B16.34, ISO 5211, PED 2014/68/EU

• Testing: Hydrostatic and seat leakage testing per API 598 / ISO 5208

Industries Served

• Oil & Gas and Petrochemicals

• Power Generation

• Marine & Offshore

• HVAC & Water Distribution

• Chemical & Fertilizer Plants

• Pulp & Paper Mills

• Food & Beverage Industries

• Wastewater & Desalination Plants