Actuated valve packages for on/off, modulating and ESD duty
Valves with electric or pneumatic actuators, function-tested as complete packages, including ESD.
Overview
Remote-operated and automated valves are supplied as one package: valve, actuator, mounting kit, controls and accessories, assembled and function tested before dispatch. You receive a single, documented item that is ready to wire or pipe up on site, rather than components to match and mount yourself.
Al Hakim's workshop in Dubai mounts electric actuators (multi-turn and quarter-turn, from major brands) and pneumatic actuators (double acting and spring return) onto ball, butterfly, gate and globe valves, and fits solenoid valves, limit switches, positioners, filter regulators and local control stations to your control philosophy.
Packages are supplied for on/off isolation, modulating control, and emergency shutdown (ESD) with fail-safe positions, partial-stroke test options and SIL-rated components where the safety case demands them.
See how a ball valve works in the interactive Valve Lab.
Typical applications
- Emergency shutdown and blowdown valves
- Remote isolation on pipelines and tank farms
- Process control and modulating service
- Compressor and pump anti-surge and recycle lines
- Cooling-water and utility automation
- Unmanned wellsites and gathering stations
Specified in oil & gas fields, petrochemicals, power & heavy industry, hydropower & water.
Specifications
| Valve types | Ball · butterfly · gate · globe · plug |
|---|---|
| Actuators | Electric (multi-turn / quarter-turn) · pneumatic (double acting / spring return) · electro-hydraulic |
| Duty | On/off · modulating · emergency shutdown (ESD) · blowdown |
| Fail position | Fail close · fail open · fail last · spring return |
| Controls | Solenoid valves · limit switches · positioners · filter regulators · local control panels |
| Electrical | Ex d / Ex ia hazardous-area certification · IP67 / IP68 · 24 V DC to 415 V AC |
| Standards | ISO 5211 mounting · IEC 61508 SIL components · API 6D / API 609 valves |
| Testing | Functional test · stroke timing · leakage test · documented FAT |
Sizes, classes and materials listed are typical of our stock and supply programme. Other combinations are quoted against your specification. See what is usually ex-stock.
Specifying the right actuated valve
An actuated valve is a package: the valve, the actuator, the mounting kit and the accessories, sized and tested together. Start with the duty. An electric actuator (Rotork IQ, Auma SA) suits on/off and modulating service where power is available and speed is not critical. A pneumatic actuator, rack-and-pinion for small quarter-turn valves and scotch-yoke for large ones, is fast, simple and the standard for emergency shutdown (ESD) and blowdown valves, with spring return giving a fail-safe position (fail-closed or fail-open) on loss of air. Hydraulic and gas-over-oil actuators cover large pipeline valves far from a power supply.
Specify the fail position, the stroke time, the control signal (on/off, 4–20 mA for modulating), the area classification (Ex d or Ex ia), the supply (voltage and phase, or air pressure) and the accessories: limit switches, solenoid valves, positioners, partial-stroke test facility and SIL rating (IEC 61508, typically SIL 2 for ESD). The actuator is sized to the valve's break torque with a safety factor, mounted to the ISO 5211 pad, and the complete assembly is stroke-tested and documented in the Dubai workshop before shipment, so the package arrives ready to wire and connect.
What to send us for a fast quote
- Valve: type, size, class, material (or existing valve data)
- Actuator type: electric, pneumatic, spring return, hydraulic
- Fail position and stroke time
- Control: on/off or modulating; signal; supply (V/phase or bar)
- Area classification and accessories (switches, solenoid, positioner, PST)
- SIL requirement and documents
Why tenders get rejected, and how we avoid it
ESD and automated valve packages are among the most heavily scrutinised items in Pakistani gas and refinery tenders: the evaluation asks for the actuator sizing calculation, the SIL certificate, the hazardous-area certificate and the manufacturer's test report for the assembled package. We quote the full package with those documents, with the actuator maker's authorisation and the valve manufacturer's API licence, so nothing is missing at technical evaluation. More on API licences, authorisation letters and certificates.
Brands available
Supplied from the manufacturers below, through our sister company Al Hakim in Dubai. Country of origin is confirmed on the certificates of every supply.
Documentation supplied
EN 10204 3.1 material test certificate traceable to heat number, API 598 pressure test report per serial number, certificate of origin and manufacturer's certificate of conformity, with NACE, fire-safe, 3.2 and third-party inspection documents where the order requires them. What every document in our package covers.
Frequently asked questions
Electric or pneumatic actuator?
Pneumatic actuators are simpler, faster and fail-safe by spring, so they are preferred for ESD and where instrument air exists. Electric actuators suit remote sites without air, modulating duty and large multi-turn valves.
Can you match an existing actuator brand on site?
Yes. Tell us the brand and model in use and we will supply matching actuators so spares and control wiring stay standard across the plant.
Is a factory acceptance test (FAT) included?
Every package is function tested, and we provide the test record. Witnessed FAT by your inspector or a third party can be arranged in Dubai.
Electric or pneumatic actuator?
Pneumatic for speed, simplicity and fail-safe ESD duty where instrument air is available; electric where there is no air, where the valve is remote, or for modulating control with a precise position feedback. Spring-return electric actuators exist but are large and costly.
What is a partial-stroke test?
A controlled part-closure of an ESD valve, usually 10–20 %, to prove it will move on demand without interrupting the process. It is specified for SIL-rated valves that stay open for long periods, and needs a positioner or a dedicated PST controller on the actuator.
Related products
The valves in our actuated packages come from the ball, butterfly, gate and globe valve ranges; see those pages for sizes, classes and materials, and our services page for the automation workshop.
Ball valves
Floating and trunnion-mounted, full and reduced bore. API 6D, fire-safe and NACE, ½" to 48".
Sizes, classes and brands
Butterfly valves
Resilient, double offset and triple offset designs, 2" to 72", wafer, lug and flanged.
Sizes, classes and brands
Gate valves
Full-bore isolation with minimal pressure drop. API 600 cast steel and API 602 forged steel, 2" to 48".
Sizes, classes and brands
Globe valves
Stable throttling for steam, fuel and process lines. Cast and forged, ½" to 24".
Sizes, classes and brandsRequest a quotation for actuated valves
Send size, class, material, quantity and required documents on WhatsApp or through the form. We reply within one working day with availability and lead time.