NewTek position sensors for steam turbine valves

By Jack Burke23 February 2021

NewTek Sensor Solutions said its HAR Series of hermetically sealed linear position sensors provide critical position measurement in the monitoring and control of steam turbine valves in power plants.

Designed especially for power plant rehabilitation programs, these AC-operated LVDTs serve as OEM replacements for legacy applications, offering the same fit, function, and reliability as original units, the company said.

NewTek said its hermetically sealed LVDTs serve as OEM replacements for steam turbine systems.

Gas turbines use various valves (control, gate, transfer, bleed) for different operations. Using position feedback on valves from the HAR LVDT Position Sensors, operators can ensure they are opened and closed according to control schemes for more efficient plant operations. Just a 2% increase in efficiency can translate into millions of dollars in savings annually, the company said.

Well-established for measuring the position of steam turbine valves, the HAR Series of Displacement Sensors are reliable and resilient in harsh environments, offering highly accurate feedback with long life. Hermetically-sealed to IP-68, these LVDT Position Sensors can withstand high shock and vibration while operating over a wide operating temperature range of -65°F to 400°F. A right-angle configuration stops debris from accumulating inside the sensor body. Units are available in measurement ranges from ± 0.05 to ± 10 in.

As AC-operating sensors, the electronics of the HAR LVDTs are separated from the core, enabling operation in the harsher environments of turbine control systems where other sensors fail. A remotely-located NewTek LVDT Signal Conditioner provides the AC excitation while retrieving the sensor’s unconditioned position output for conversion into an analog or digital output communicated to a control system.

As power plants look for inventory as supply chain fluctuations disrupt Just-In-Time models, NewTek maintains an in-house stock of these USA-manufactured LVDTs for fast delivery. The company is very flexible with shipping orders early or holding orders to accommodate customers experiencing reduced hours or temporary shutdowns. NewTek also customizes position sensors with small modifications to full developments to meet different challenges.

Delivered directly to your inbox, Diesel Gas & Turbine News; News features the pick of the breaking news stories, product launches, show reports and more from KHL's world-class editorial team.
Jack Burke Senior Editor, Diesel Gas Turbine Tel: +1 262 754 4150 E-mail:
Gabriele Dinsel Sales Manager Tel: +49 711 3416 74 71 E-mail:
Latest News
Isotta Fraschini presents 16V170 G-engine live
Road show to present new 16-cylinder engine to gen-set manufacturers
Wärtsilä developing 120 MW power plant in Gabon
Engine maker will also operate, maintain facility
Utility-scale energy storage order announced
ESS Tech supplying 8.5 MWh capacity to Spanish firm