When manual operation is inadequate or inconvenient, Saunders offer a variety of actuators covering valve sizes up to DN250, for different line and operating pressure options. We offer three different actuators, designed for various characteristic performances.

Saunders® EC & S360 Type is a compact and lightweight piston operated pneumatic linear actuator suitable for demanding duties in both industrial and aseptic applications. Available in stainless steel (SSC) or injection moulded in PES Polyether sulphone (EC), the actuator offers excellent chemical and temperature resistance. Available as failsafe spring to close, spring to open and double acting, the actuator is suitable for weir Type A diaphragm valves and HC4 aseptic diaphragm valves.

Now available in sizes up to 4" (DN100), the Saunders® S360 piston actuator permits remote operation of the valve, either as an alternative to manual operation or as an integral part of a control system

IDV Brochure

S360 Brochure


 Saunders® ES Type - reduced cost of ownership of the Saunders® ES Modular Actuator has been achieved through standardisation of the actuator 'heads' and a unique interchangeable bonnet assembly.

IDV Brochure


Saunders® Actuator accessories: Our thoughtfully designed accessory portfolio provides you with the final elements necessary to configure an automated valve solution to precise control requirements.

Simple to mount and set, our accessories are designed with fewer parts for extra reliability. Many are compact enough to be easily installed and maintained where space is at a premium. Modular versions can be used with more than one type of valve or combined with other accessories in the range to provide even more combinations. They can often be transferred to another process when their original purpose has been fulfilled.

IDV Brochure


 Saunders® ECX Actuators provide an extension to the Saunders® EC Actuator range, providing excellent chemical resistance with a compact design. ECX actuators are suitable for Weir Type A diaphragm valves and the Saunders® HC4 Range of diaphragm valves. A wide range of line pressures can be accommodated with the three types of spring packs available: failsafe spring to close, spring to open and double acting.

IDV Brochure


Make an enquiry

Make an enquiry

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