Model 750 Features • Float Switch, External Cage, Horizontal One alarm point Small, vertical mounting External cage mounted outside process vessel Float type leveling switch Balanced horizontal element design Description The Delta Controls Model 750 Float Switch utilizes a balanced horizontal element design. Model 750 is suitable for high temperature and pressure. The sensing elements can be made solid for high pressures, better reliability, and corrosion resistance. A float is held in a horizontal position by a counterweight pivot mechanism. As the liquid level rises, the sensing element is moved vertically up. This movement results in short stroke rotary motion which carries the drive magnet into the field of the switch station magnet. The vertical dimension requirement is small–less than inches in some cases. Its dual magnet positive switching action is reliable as well as insensitive to vibration and shock. There is no 'in between' condition of the switching mechanism. This modern design has significant advantages over vertically rising float design. The straight through piping is efficient, lowers installation costs, and switch point can be set to a new elevation without cutting on the process vessel. The switch magnet is pushed against the side of the sealing tube and the output switch is actuated. When the liquid level falls, the sensing element moves down with it. The drive magnet is rotated back through the magnet fields; the switch magnet is repulsed, the switch returns to its original position, and the output switch de-actuates. The dual opposed magnet design provides snap action of the switch mechanism; immunity from vibration, and greatly improved reliability. Model 750 Specifications Available Wetted Materials: Specific Gravity: Temperature Range: Pressure Range: Orientation: Butt or Socket Weld: Threaded Connection: Flanged Connection: Flange Rating: Certifications: 316 Stainless Steel, carbon steel 0.50 to 2.40 -200 °F to +1100 °F (-129 °C to +593 °C) -15 psig to +6000 psig (-1 bar to +413.6 bar) Top/Bottom 1.0 in 1.0 in FPT 1.0 in to 4.0 in MPT 1.0 in to 8.0 in ≤ 1500 lb ANSI flanges or Grayloc® DIN or JIS equivalents hub Third Party Listed by CSA NRTL/C (USA and Canada) Class I, Division 1, Groups B, C and D; Class II, Division 1, Groups E, F and G; Class III, Division 1 Class I, Zone 1, Ex d IIB+H2 Class I, Zone 1, AEx d IIB+H2 166 | Mechanical > Model 750 | deltacnt.com