Product category:
Valve positioners and actuators
News Release from: Tomoe Valve | Subject: G Series pneumatic actuator range
Edited by the Processingtalk Editorial
Team on 03 November 2006
Optimised control valve operations need
actuation
Tomoe Valve, a global leader in the design and manufacturing of valves and process control systems, has announced a major extension to the G Series pneumatic actuator range
Tomoe Valve, a global leader in the design and manufacturing of valves and process control systems, has announced a major extension to the G Series pneumatic actuator range This launch further enhances the already extensive range of Tomoe butterfly valves and the G Series complements the inherent control valve characteristics of the range
This article was originally published on Processingtalk on 28 Jul 2003 at 8.00am (UK)
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New G Series pneumatic actuator range
Tomoe Valve, world leader in the production of butterfly valves and actuators for the process and water industry, has launched its new G Series Pneumatic Actuator range for quarter turn applications
Butterfly valves for the food processing industry
Combining the latest in both valve design and materials technology, Tomoe valves incorporate unique features to meet the varied applications in the food processing industry
The extended G Series range now has 15 double acting and 15 spring return models and covers the Tomoe valve range from DN40 - DN600.
Full traceability is available with each actuator, and a wide range of options are available including a stainless steel bodied actuator as well as a full range of other protective coatings.
The G Series range of pneumatic actuators incorporates the unique Scotch Yoke design, utilising a 5 degree offset.
Further reading
Over 1000 Tomoe valves at new glass plant
Tomoe Valve recently secured a contrct to supply all the mechanical service butterfly valves on the furnace and filling hall pipeline links at the new Quinn Glass manufacturing plant near Warrington.
Revolutionary super light weight butterfly valve
Tomoe, a world-leading manufacturer of butterfly valves and actuators, has announced the new 773Z, a revolutionary super light weight butterfly valve allowing higher flow rates
This design enables the maximum torque to be delivered from the valve seat at closed position.
The first 5 degrees of break-out movement is crucial to an efficient disc separation from the seat and the 5 degree asymmetric operation maximises its efficiency.
The extremely high torque output also results in smaller envelope dimensions for no loss in torque output.
The asymmetric torque curve of the G Series range adheres to the stringent requirements of the Tomoe butterfly valve, where the maximum torque is required, at the seat break-in and break-out positions, making the G series ideal for butterfly valves and providing the most efficient actuation valve range.
On a torque for torque comparison the G Series actuator uses 30% lower air consumption than its rack and pinion equivalent.
The G series actuator range meets the latest Atex requirements and is produced in an ISO 9001: 2000 factory.
The G Series Scotch Yoke design also delivers a hysteresis figure of 1 to 2% compared to a typical 3% figure for rack and pinion models.
This combined with the G Series valve positioners with a hysterisis figure of 0.6%, produces a valve actuator package that is ideally suited to many control valve applications.
The G Series actuator range is supported by a full range of ancillaries including switch boxes, valve positioners, control stations, solenoid valves, travel stops, manual overrides and a low temperature (-50C) specification.
Common problems such as O rings sticking and rolling when used as piston seals are eliminated with the G Series, because the piston seals are PTFE and have an internal cylinder surface finish which provides an ultra low friction factor between the cylinder and the pistons.
There are 15 Double Acting models and 15 Spring Return models, this extensive range means that all DN40-DN600 Butterfly valves can be actuated with the G Series Actuator range.
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