• Type G35 Seemag Marine Gauge

Type G35 Seemag Marine Gauge

  • Product Code: Type G35 Seemag Marine Gauge

Seemag Gauge — Magnetic Level Indicator for Marine & Industrial Applications

The Seemag Tank Content Indicator is a high-quality yet cost-effective magnetic level gauge designed for marine and offshore environments. Its advanced magnetic coupling design delivers accurate, step-less readings with 360° visibility, making it a trusted solution where precision, reliability, and safety are paramount.

Unlike conventional magnetic gauges, the Seemag system incorporates a movable carriage with a marker strip that mirrors the motion of a float inside the sealed stainless-steel tube via magnetic coupling. The marker strip can be adjusted to match the specific gravity of the liquid, ensuring reliable measurement accuracy across varied applications.

Example Applications

  • Diesel
  • Fuel oil
  • Heavy fuel oil (heating may be required)
  • Lubrication oil
  • Water
  • Coolant
  • Chemicals

Approvals & Standards

  • Det Norske Veritas (DNVGL)
  • Lloyd’s Register of Shipping (LR)
  • American Bureau of Shipping (ABS)
  • RINA
  • Meets the requirements of SOLAS (Safety of Life at Sea)

Key Features

  • Accurate Step-less Reading: Smooth, continuous measurement eliminates “jump” effects common in conventional magnetic gauges.
  • 360° Visibility: Clear visual indication from all directions — ideal for ship engine rooms and industrial tanks.
  • Custom Marker Calibration: Adjustable to specific gravity (0.7–1.3) for precise performance.
  • Operating Temperature: Up to 180 °C.
  • Centre Distances: 450 mm – 5000 mm.
  • Connections: Wide range of screwed and flanged configurations to suit installation requirements.
  • Heating Options: Electrical trace, steam, or thermal oil heating for high-viscosity fluids.
  • Digital Read-Out: Optional remote level indication for bridge, control room, or process integration.
Need compliance? Seemag is SOLAS-approved and class-accepted by DNVGL, LR, ABS, and RINA — ideal for flammable liquid tanks and critical marine operations.

Performance Summary

  • Operating Temperature: Up to 180 °C
  • Centre Distance Range: 450 mm – 5000 mm
  • Specific Gravity Range: 0.7 – 1.3
  • Read-Out Options: Local indicator / digital remote
  • Heating Options: Electrical, steam, or thermal oil

The Seemag Gauge merges precision magnetic technology with proven marine engineering to deliver a rugged, maintenance-friendly, and class-approved solution — trusted globally for shipboard tank level monitoring.

Technical Specifications:


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