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Penny and Giles has supplied its ICS100 linear potentiometers to provide positional feedback for Xylem Flow Control’s electro-hydraulic actuators, which are used to control choke and control valves used in the oil and gas industry and for water and wastewater treatment applications.

Xylem specialises in the design and manufacture of electro-hydraulic actuation for control valves for both onshore oil and gas pipelines and pumping stations and offshore topside choke pressure and flow control applications, where there is either Zone 0 (constant hazard) or Zone 1 (occasional hazard) risk from explosive petrochemical gas.

The company utilises Penny and Giles in-cylinder devices, which is why it is predominantly the ICS100 that is installed on the back of its hydraulic actuators.

Typical applications include valve systems installed on the top side of oil and gas production platforms, helping to control the flow of media as it is being transferred up through the special risers that transport media from the well itself and onto the pipelines that eventually transport it ashore for storage or processing.

Key benefits of product application

  • Linear actuating devices are used on linear choke and plug valves rather than rotary units because potentiometers provide an intrinsically safe feedback signal from a relatively low power source.
  • Unlike inductive feedback devices, potentiometers are not capable of producing a current to generate a spark — important for safety reasons.
  • Automatic feedback from the potentiometers, delivered via a closed-loop system, allows pressure and flow to be monitored and analysed and the position of the valve to be adjusted as required.
  • The ICS100 range is claimed to offer design engineers an affordable alternative for applications where non-contacting technologies may prove too expensive to use or where they may be excluded from use owing to the presence of an explosive gas environment.
  • According to Xylem’s John Smallshaw, migration from the original HLP100 to the new, metric ICS range was virtually seamless as the models are interchangeable.
  • Smallshaw said that in-cylinder potentiometers play a vital role in the company’s actuator business in terms of performance, reliability, safety and value; he added that the ICS100 range is easy to specify and install and is competitively priced.

Curtiss-Wright Industrial Group

The Curtiss-Wright Industrial Group is formed from a number established specialist companies who are experts in the design, testing and manufacture of a range of components and systems for the safe and reliable operation and control of mobile and static machinery – especially off-highway vehicles, heavy trucks, buses, military vehicles and motorsport. Within the business are four market leading brands — Penny & Giles Controls, PG Drives Technology, William Controls, and Arens Controls.

The Curtiss-Wright Industrial Group is formed from a number established specialist companies who are experts in the design, testing and manufacture of a range of components and systems for the safe and reliable operation and control of mobile and static machinery – especially off-highway vehicles, heavy trucks, buses, military vehicles and motorsport. Within the business are four market leading brands — Penny & Giles Controls, PG Drives Technology, William Controls, and Arens Controls.

Penny & Giles Controls
Delivers rugged component level solutions using the latest non-contact sensing technologies, and specialises in rotary, linear and tilt position sensors; joysticks; solenoid actuators and associated electronic signal conditioning. The business was first established in 1956 and pioneered aerospace sensing and data recording technologies with a reputation for quality, performance and reliability. The aerospace business continues today within other Curtiss-Wright business units. The company joined Curtiss-Wright in 2002.

PG Drives Technology
Delivers rugged subsystem solutions including programmable controllers and drives used in a wide variety of advanced electric-powered vehicles such as forklifts, pallet loaders, mobility scooters and wheelchairs, serving the industrial and medical markets. These products deliver precise variable power from batteries to electric drive motors, and are fully programmable to suit various motor profiles, voltages and power levels. The business was first established in 1976 and was originally part of the Penny & Giles group of companies. The company joined Curtiss-Wright in 2012.

Williams Controls
Delivers rugged component level solutions and is a leading designer and manufacturer of highly-engineered electronic sensors and electronic throttle controls for off-road equipment, heavy trucks, and military vehicles. The business was first established in 1937 and pioneered the development of the first electronic throttle control for large diesel engines, quickly becoming the world leader in the design and manufacture of electronic throttle controls for trucks and buses. The company joined Curtiss-Wright in 2012.

Arens Controls
Delivers rugged component level and subsystem solutions and is a leading designer and manufacturer of highly engineered electronic shift controls for automatic transmissions used on heavy trucks and buses. The company also designs and manufactures power management and traction systems for the emerging Hybrid Electronic Vehicle (HEV) market. The business was first established in 1939 and pioneered the development of “by-wire” vehicle control technology, and more recently power electronic drivetrain components and systems for the HEV market. The company joined Curtiss-Wright in 2013.

Curtiss-Wright Industrial Group has manufacturing sites in the US, Europe, India and China. Total customer service and support is assured via a global sales network with CWIG offices in the US, UK, Germany, India, Taiwan and China, as well as a network of distributors and agents covering other regions.

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