TPi May 2016

Valves , f i t t ings & f langes

Valve actuator with optimised stem acceptance and torque output

Local position indication, valve and actuator status, asset management and diagnostic operating information is available to download, or can be viewed directly at the actuator. Diagnostic graphics show the valve torque, usage profiles and service logs, facilitating real-time analysis at the actuator and in the control room. Preventative valve maintenance requirements can be identified, eliminating unplanned interruptions to the plant or over-cautious planned maintenance outages. Reliability is optimised by the IQ double-sealed IP66/IP68 watertight and temporarily submersible enclosure, which permanently protects internal electrics from the ambient environment, even during site wiring with the terminal housing cover removed. On the actuator’s compact and robust enclosure, local open/close and local/ stop/remote selectors are coupled magnetically to internal switches without penetrating the actuator body, enhancing non-intrusive environmental protection. Emergency hand-wheel

Rotork has introduced a new model in its IQ range of non-intrusive intelligent electric actuators with an optimised combination of valve stem diameter acceptance and torque output to facilitate economical automation of valves and penstocks typically found in the water and effluent treatment industries. The new IQ19 actuator combines a stem acceptance of up to 51mm (2") diameter with torque output up to 135Nm (100lb. ft) and output speeds up to 72 rpm at 50Hz (86 rpm at 60Hz). The combination meets the operating requirements of large numbers of penstocks, sluice gates and gate valves. The actuator incorporates a range of reliability, functionality and asset management features, including data logging capabilities. An information- rich backlit display is the focus of attention for non-intrusive wireless commissioning, communication and multi-functional indication, including user-friendly multi-lingual menus for set-up and configuration.

Rotork’s new IQ valve actuator

operation with motor preference is provided as standard.

Suitable for all industry-standard three- phase power supplies, IQ19 actuators offer network connectivity with Foundation Fieldbus, Profibus, HART and DeviceNet open systems, as well as Rotork’s own dedicated Pakscan wired or wireless systems.

Rotork plc – UK information@rotork.com www.rotork.com

Multiple measurements with only one pressure gauge

The gauge isolator valves, which are simply installed in the lines between the measuring points and the pressure gauge using connector threads G 1/4 BSP or 7/16-20 UNC (1/4 SAE), were designed for installation in control pan- els with a maximum wall thickness of 5mm. Operating instructions are printed on the cover panel in several languages. Gauge isolator valves from Stauff are suitable for use with all common hydraulic media and for a maximum operating pressure of 400 bar. They can be used in temperature ranges from -30°C to +115°C

Stauff’s SWS-M multi-station gauge isolator valves allow the measuring of the operating pressure in hydraulic systems at up to six different measuring points in the system with only one display device. This is generally an analogue or digital pressure gauge. The measuring point to be monitored is selected by turning the knob on top of the component. This allows the machine operator to reduce the procurement costs and pos- sibly also the maintenance and calibra- tion costs for measuring devices in orig- inal equipment as well as for retrofitting.

Pressure gauge selector switches allow multiple measurements of operating pressure with only one pressure gauge

Walter Stauffenberg GmbH & Co KG – Germany

sales@stauff.com www.stauff.com

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www.read-tpi.com

May 2016 Tube Products International