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DESCRIPTION
T20 and T21 units are simple, reliable float switches, designed for top mounting into tanks or vessels. T20 units utilize a single switch mechanism and float. T21 tandem units utilize two switch mechanisms and two separate floats. T20 and T21 models are available for any type of open or closed vessel, with either threaded or flanged type mounting, and actuating depths of up to 48 inches (1219 mm).
Features
- Float diameters of 3" × 5", 4" and 4 1⁄2" available
- Tank connections available in 1" NPT, cast iron, forged, or stainless steel flanges
- Choice of switch mechanism: Dry contact Hermetically sealed Pneumatic
- Choice of switch enclosure: NEMA 1 carbon steel for pneumatics TYPE 4X/7/9 Class I, Div. 1, Groups C & D, polymer coated aluminum TYPE 4X/7/9 Class I, Div. 1, Group B, polymer coated aluminum
Application
- Day tanks
- Fuel storage tanks
- Flash tanks
- High and high/high alarm from single tank entry
- Condensate receivers
- Cooling towers
- Interface
TECH DATA
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