HLL - Hansen - Refrigerant Float Side & Bottom Connections

The Hansen HLL Series refrigerant float switches, including models with side and bottom connections, are designed to electrically indicate or control liquid levels in industrial refrigeration systems. Here's a detailed overview of the HLL model with side and bottom connections:

Key Specifications

• Model: HLL Series (Side & Bottom Connections)
• Connection Types:
  • ¾" FPT
  • 1" Butt Weld (combination)
• Safe Working Pressure:
  • Standard: 400 psig (27 bar)
  • CO₂ Applications: 600 psig (40 bar)
• Operating Temperature:
  • Standard: -50°F to +150°F (-45°C to +65°C)
  • CO₂: -20°F to +150°F (-29°C to +65°C)
• Specific Gravity Range: 0.57 to 1.70
• Electrical Switch: 120V or 240V, 10 amp SPDT (Honeywell Micro Switch®)
• Electrical Connection: ½" NPSM conduit or optional DIN plug (3-wire + ground)

Features

• Heavy-Duty SPDT Switch: Snap-action Honeywell switch in a sealed, tamper-resistant housing with inert gas to prevent corrosion.
• 360° Rotatable Switch Assembly: For easy installation and maintenance.
• Self-Guided Float Ball: Moves on a large-diameter stem with alignment guides to prevent sticking or bending.
• Deflector Plate: Protects float from surges and ensures smooth operation.
• Cushioning Springs: Top and bottom springs protect the float from impact.
• Standard Differential: 2" (50mm) to prevent short cycling; optional down to 0.5" (13mm).
• Welded Tank Assembly: Eliminates gasket leaks.

Applications

• High/low level alarms
• Solenoid valve control (fill or exit)
• Pump shut-off
• Pilot light indication
• Transfer drum operation