Send us your free issue Keystone butterfly valves and have them fully actuated, assembled, and ready for installation — saving you time on-site and ensuring everything is built to spec from the start.We supply and mount pneumatic or electric actuators to suit your application, along with full accessory packages including solenoid valves, switchboxes, and position indication. Options available from trusted brands such as ASCO and TopWorx, giving you reliable control and feedback straight out of the box.Every assembly is built, aligned, and tested in-house, so when it arrives, it’s ready to drop straight into your system with confidence.

Explore our range of pneumatic and electric actuators to suit your application — simple, reliable, and matched to your valve.

Actuators Available

V-Tork Actuators: Reliable, cost-effective pneumatic actuators designed for fast delivery and consistent performance.

Actuators Available

Air Torque Actuators: High-quality Italian actuators built for durability, precision, and long service life.

Actuators Available

Actreg Actuators: Robust pneumatic actuators engineered for demanding industrial applications and high torque output.

Actuators Available

JJ Actuators: Compact and efficient electric actuators offering precise control and easy installation.

Actuators Available

Hytork Actuators: Heavy-duty pneumatic actuators trusted in oil, gas, and harsh environments worldwide.

Actuators Available

Elomatic Actuators: Premium Finnish actuators known for smooth operation, high cycle life, and advanced engineering.

To specify the right actuator and process your free issue enquiry efficiently, please have the following information ready.

Keystone valve figure or series and nominal size (e.g. K-LOK 362 DN200, Series GR DN300, HiLok DN150, F990 NPS 6) — confirms valve type, pressure class, and actuator interface
Maximum operating pressure (bar or psi) — required for actuator torque calculation
Maximum differential pressure across the valve at operation
Required fail-safe position — fail-open, fail-closed, or stay-put (double-acting)
Control signal or supply type — instrument air pressure (bar), electrical voltage, or analogue signal (4–20 mA)
Hazardous area classification — Zone, category, and gas group if ATEX-certified actuator or accessories are required
Control system interface — BACnet, Modbus, DeviceNet, PROFIBUS, BEMS volt-free contact, or other protocol if relevant

1. GET IN TOUCH AND TELL US YOUR SPEC

Let us know your valve details, actuation requirements, and any accessories needed — we’ll handle the rest.

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2. SEND US YOUR VALVE

Ship your free issue valve to our workshop, ready for assembly.

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3. WE ACTUATE AND BUILD TO SPEC

We mount the actuator, install accessories like solenoids and switchboxes, and fully test the assembly.

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4. SHIPPED BACK TO YOU — FAST

Your completed valve is dispatched for next working day delivery, ready to install straight away.

Already own a Keystone valve? Our free issue actuation service lets you send us your existing valve — we supply, fit, and return it fully actuated and ready to install.

Get in touch

Which Keystone Valves Can We Actuate?

K-LOK® Figure 360/362 and 370/372 — High Performance Butterfly Valve (ASME)

K-LOK® Series 36 and 37 — High Performance Butterfly Valve (ISO/PED)

K-LOK® Series 38 — High Performance Butterfly Valve (PN)

HiLok — Double Offset High Performance Butterfly Valve

ParaSeal Range — High Pressure Resilient Seated Butterfly Valve

Series GR (GRW/GRL) — Heavy Duty Resilient Seated Butterfly Valve

OptiSeal — Resilient Seated Butterfly Valve

Figure 320 (Wafer) / Figure 322 (Lugged) — Resilient Seated Butterfly Valve

Figure 990 (Wafer) / Figure 920 (Lugged) — Resilient Seated Butterfly Valve

Figure 627PQ — Double Flanged Double Eccentric Butterfly Valve

Figure 637 — Slurry Control Valve

Figure 635/2000 — Slurry Butterfly Valves (Mining/Abrasive Service)

Series V30/V32 — Marine High Performance Butterfly Valve

Figure V11 — Marine Double Flanged Fully Rubber-Lined Butterfly Valve

You send us your Keystone butterfly valves, and we handle the full actuation, assembly, and testing before returning them ready for installation.

Yes, we can work with a wide range including wafer, lugged, and flanged butterfly valves.

We offer pneumatic and electric actuators for both on/off and modulating control.

Yes, we supply and install solenoid valves, switchboxes, positioners, and visual indication.

We use trusted brands such as ASCO for solenoids and TopWorx for switchboxes and position feedback.

Yes, we calculate and select the correct actuator based on torque requirements, pressure, and application.

Yes, all assemblies are built, aligned, and fully tested in-house to ensure reliable operation.

Yes, we can specify actuators suitable for high cycle rates and demanding environments.

Yes, we can provide ATEX-rated actuators and accessories where required.

We offer fast turnaround times depending on specification and stock availability.

Yes, once complete, your actuated Keystone butterfly valve can be shipped for next working day delivery.

Yes, all units are fully assembled and tested, ready for immediate installation.

Please feel free to request information and advice using the form below or call us on 0151 547 1221

Free Issue Keystone Valves