K Controls - Sub-Sea Valve Actuator Position Monitors

More than 300 IP68 (sub-sea) K4-20 Position transmitters have now been specified for use at a depth of 135 metres in the Caspian Sea. They are used to monitor the position of hydraulically actuated valves that flood the jackets on the legs of oil rigs. The legs of the rigs are positioned and then submerged using global positioning satellite technology.

K Controls manufactures an extensive range of subsea valve actuator position monitors for on/off or modulating applications. The maximum depth of submersion for different versions is between 25 and 2500 metres and the enclosure material can be either epoxy coated carbon steel, 316 stainless steel or duplex stainless steel.

Applications where the products are used include rig positioning, sub-sea emergency shut down or manifold valves, dry docks and tanker loading or balancing.

A variety of hermetically sealed solid state or reed style proximity switches can be fitted together with 4-20mA, HART®, PROFIBUS® or FOUNDATION™ fieldbus position transmitters. The options of noncontact sensing and component redundancy are available.

ATEX 11 2 G Ex ia certification is also available should the unit be required for intermittent submersion in a hazardous area. A standard M20 or ½" NPT conduit entry is provided. Alternatively the base can be machined to accept a customer specified sub-sea connector.

K Controls Ltd
Tel: 01895 449 601
Website: www.k-controls.co.uk

Published in Valve User Magazine Issue 18


Summer 2020 // Issue 53
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