SNKK Series Level Gauges

Visual / electrical fluid level indication in hydraulic reservoirs
with maximum tank pressures not exceeding 2 bar / 29 PSI;
ideal for applications in which space is limited

Nominal Sizes and Designs

• 6 nominal sizes from 127mm / 5.00in to 381mm / 15.00in
• Compact design allows space-saving installation:
• Always 40mm / 1.57in shorter than Level Gauges
• SNK of the comparable nominal size
• Display either undivided (SNKK-127 ... 176) or subdivided
• by strut(s) into 2 (SNKK-254) or 3 sections (SNKK-305 and
• SNKK-381)

Media Compatibility

Suitable for use with Mineral and Petroleum based
hydraulic fluids (HL and HLP)

Materials

• Housing made of Aluminium, black powder-coated
• Sight tube and plugs made of Polyamide (PA)
• Float made of Polypropylene (PP)
• Sealings made of FKM (Viton®)

For the individual components of the level gauge (sight glass,
housing, sealings, bolts), alternative materials for improved
UV or chemical resistance, low-temperature applications
down to -50°C / -58 °F and use with special media (such as
bio-degradable fluids, diesel oils, gasolines) are available on
request.

Electrical Specifications

• Magnetic float activates switch when fluid level drops below contact level within 60mm / 2.36in of lower banjo bolt
• Available as a SPDT (Single Pole Double Throw) contact
• Equipped with five-pin circular connector M12 or Deutsch connector
• Direction of the electrical contact box is right to top by default

Technical Data

• IP 67 protection rating: Dust tight and protected against powerful water jets; even immersion (up to 1m / 3.28ft) in water is possible under defined conditions of pressure and time (IP 69K on request)
• Operating temperature range: -30°C ... +80°C / -22°F ... +176°F
• Recommended tightening torque: 8N·m / 5.9ft·lb
• Minimum lateral distance to other magnetic components and cables: 10 mm / .39in

Accessories / Options

• Dial thermometers with probe and a Celsius or a dual Celsius /
• Fahrenheit scale with a temperature display range of up to
• +100°C / +200°F
• Thermo Switches
• Temperature Sensors
• Deutsch Adaptor Cable