Pneumatic Actuated Valve

Pneumatic Actuated Valve Supplier in Dubai, UAE Valves supports industries with air operated valve packages that provide fast isolation and accurate control across critical networks. Compressed air drives quarter turn or multi turn actuators to operate ball, butterfly, gate, globe, knife gate, and plug valves, ensuring quick response, repeatable positioning, and smooth integration with plant automation. Our assemblies are configured to Dubai’s oil, gas, desalination, district cooling, and power applications, where reliability and safe fail action are essential.

How Pneumatic Actuated Valves Work

A pneumatic actuator converts air pressure into rotary or linear motion. Double acting designs use air to open and air to close, while spring return units combine air with a spring to define a fail safe position. Solenoid valves and limit switches provide open and close commands and feedback. For modulating duty, a positioner interprets a 4–20 mA or 0–10 V signal and adjusts valve position with feedback to the DCS or PLC. Stroke speed is tuned with exhaust valves and flow controls, while mechanical stops prevent over travel.

Benefits of Pneumatic Actuated Valves

• Very fast stroke times for shutdown, interlocks, and high cycle service
• Fail open or fail close options for a defined safe state on air loss
• Simple and robust mechanism with low maintenance needs
• Easy tie in with DCS or PLC via solenoids or positioners
• Lower energy consumption than continuously running drives
• Wide ambient tolerance with kits for cold and high temperature sites

Types of Pneumatic Actuated Valves

• Pneumatic Ball Valve — quarter turn, full or reduced bore
• Pneumatic Butterfly Valve — compact, part turn package for large lines
• Pneumatic Gate Valve — multi turn drive with gear for tight shutoff
• Pneumatic Globe Valve — high accuracy for throttling and control loops
• Pneumatic Knife Gate Valve — linear thrust for slurry and pulp duties
• Pneumatic Plug Valve — durable quarter turn for viscous or dirty fluids

Technical Specifications

• Valve size range: DN 15–DN 1200 (½″–48″)
• Pressure ratings: PN 10–PN 250; ASME Class 150–2500
• Temperature range: −196 °C to +600 °C depending on material and trim
• End connections: flanged RF/RTJ, butt weld, socket weld, threaded (small sizes), hubs on request
• Bore options: full bore and reduced bore
• Air supply pressure: typically 5–8 bar, clean and dry per site standard
• Actuator torque/thrust: from small instrument sizes up to tens of thousands of N·m or N
• Stroke speed: adjustable with quick exhaust valves and speed controls
• Control modes: on/off, inching, or modulating with analog signal; digital protocols through positioners
• Solenoids and accessories: NAMUR mount (VDI/VDE 3845), filter regulator, gauges, quick exhaust
• Mounting interfaces: ISO 5211 for part turn, ISO 5210 for multi turn; custom brackets available
• Protection: IP66/IP67 enclosures, corrosion resistant coatings; stainless hardware on request
• Ambient temperature: −20 °C to +70 °C standard; low/high temp kits available
• Hazardous areas: ATEX and IECEx options when specified
• Duty: high cycle service with bearings and seals matched to expected cycles

Design Standards

• EN 15714 for pneumatic actuators on industrial valves
• ISO 5211 and ISO 5210 actuator to valve interfaces
• VDI/VDE 3845 (NAMUR) for accessory mounting
• IEC 60529 ingress protection ratings
• IEC 61508 for SIL capability where required
• Valve bodies to API 6D, EN 593, BS 1873, and other relevant standards

Inspection and Testing

• Functional stroke tests with calibrated torque/thrust verification
• Solenoid and limit switch checks with wiring confirmation
• Positioner setup and loop checks for 4–20 mA or 0–10 V control
• Leak testing of air circuits and fittings under supply pressure
• Hydrostatic and seat leakage tests to API 598 or ISO 5208 when supplied assembled
• Factory acceptance testing with witness available on request
• Certification packs with serialized data and EN 10204 3.1 / 3.2 traceability

Body and Trim Material Compatibility

Industries Served

• Oil and Gas: ESD/SDV duties, manifolds, tank farms, utilities
• Power Generation: fuel gas, cooling water, condensate, balance of plant
• Water and Desalination: RO trains, headers, intake and distribution
• Petrochemical and Chemical: unit isolation, batch control, utilities
• District Cooling: chilled water networks across Dubai and the Middle East
• Marine and Offshore: topsides utilities, firewater, seawater cooling

As a Pneumatic Actuated Valve Supplier in Dubai, UAE Valves delivers complete tested packages adapted to local service conditions, standards compliance, and documentation requirements. Our solutions are in service across refineries, district cooling plants, desalination projects, and offshore platforms throughout the region.

Special Features

• Fail safe spring return or double acting operation
• NAMUR mounting for solenoids, positioners, and accessories
• High cycle seals and bearings designed for long service life
• Quick exhaust valves and stroke speed controls
• Redundant limit switches and position feedback options
• Space heaters and coatings for extreme conditions
• Manual override with declutch for safe local operation
• Partial stroke testing for safety critical valves

Customization available for torque range, fail position, coatings, and end connections.