Chemical Feed Solutions Ltd Chemical Feed

LH29 Switch-Tek™ Interstitial Leak Detection Switch

The general purpose float leak switch provides reliable leak detection in and around secondary containment sumps and tanks with a 1A relay output. The flat body Valox leak sensor is ideal for placement in hard to reach interstitial areas with limited space. In the event of a leak, the foam polypropylene float will rise to signal the presence of unwanted liquid in the containment vessel. The leak detection switch is typically mounted flat on the bottom of the sump floor or secondary containment tank wall.


  • Valox sensor body with PP float and Halar® jacketed cable for corrosive liquids
  • Flat, low profile sensor with minimal float rise for applications with limited space
  • Dry contact, normally closed reed switch opens to signal the presence of liquid
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Chemical Feed Solutions Ltd
6a Enterprise Drive Henderson Auckland

PO Box 104-055, Lincoln North, Waitakere 0654
Phone: 09-837-6075
Fax: 09-837-6075
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Master Electricians

Chemical Feed Solutions is a member of the Electrical Contractors Association of New Zealand