Model 750

SKU: 750

Float Switch, External Cage, Horizontal

The Delta Controls Model 750 Displacer Switch utilizes a balanced horizontal element design. 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 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.

The 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 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 deactuates. The dual opposed magnet design provides snap action of the switch mechanism; immunity from vibration, and greatly improved reliability

Features

  • One alarm point
  • Small, vertical mounting
  • External cage mounted outside process vessel
  • Float type leveling switch
  • Balanced horizontal element design

Specifications

  • Available Wetted Materials: 316 Stainless Steel, carbon steel
  • Specific Gravity: 0.50 to 2.40
  • Temperature Range: -200 °F to +1100 °F (-129 °C to +593 °C)
  • Pressure Range: -15 psig to +6000 psig (-1 bar to +413.6 bar)
  • Process Connection:
  • Orientation: Top/Bottom
  • Butt or Socket Weld: 1.0 in
  • Threaded: 1.0 in FPT 1.0 in to 4.0 in MPT
  • Flanged: 1.0 in to 8.0 in
  • Rating: ≤ 1500 lb ANSI flanges or Greloc® hub DIN or JIS equivalents

Certifications & Approvals

  • 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

Required Ordering Information

  • Detailed model number
  • Tag or nameplate detail (if required)
  • Documentation/testing tiers (if required, refer to Additional Resources in the product catalog)
  • Process fluid or material name*
  • Process fluid or material specific gravity
  • Maximum process temperature
  • Maximum process pressure
  • Upper and lower materials required for interface service

Additional Information

Subheader

Float Switch, External Cage, Horizontal

Level Measurement

Point

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