AVOL Mechanical Spring Return Failsafe Actuators
A leading supplier of electric and pneumatic actuators, including actuator accessories. Available at competitive pricing and quick delivery.
AllValves Online™
will always offer where possible our Sun Yeh Series of electric spring return actuators however where delivery is required quickly we can look to offer our SR Series.
The SR range of mechanical spring return actuators offers 50Nm, 100Nm and 300Nm. Available in 220V as ATEX approved for use in a Zone 1 or 2 application. IP67 aluminium epoxy coated housing, with internal heater and position feedback via limit switches.
The SR Actuator range differs from other fail-safe electric actuators in the market with a mechanical spring return rather than batteries. This offering a more secure and guaranteed closure on power loss. Actuator is configured as Normally Closed as standard.
Price and availability below, note if you need 110VAC or 24VDC voltage supply, please contact our sales team for price and delivery. Technical datasheet available to download below including wiring diagram.
Please click on the product code for discounts, datasheets and more information:
Stock: 
= Available for next day delivery
= Available on 2-3 day delivery
= Factory lead time typically 7-10 days from your order.
General Note:
Please place your order by selecting the product listed above, this will show any discounts available whilst also showing you additional information including technical specifications and datasheets. From this screen you can add to basket also. Note that some products will be box quantities, this should be clearly shown on screen. If there is no box quantities stated, then all items are individually listed and priced. If the item you are interested is not showing as 'In Stock', please do contact us to check the best availability or allow us to offer an alternative/ like for like product. Products showing as '2-3 Days' might actually be available next day, please check with us before leaving the site. Goods showing as factory lead time or '7-10 Days' are typically from our European stocks and can often be made available on a shorter lead time for urgent requirements.