Slot Dipping Device

The Slot Dipping Device has been designed to provide convenient and safe methods for dipping, sampling and product temperature gathering functions in bulk storage tanks containing volatile and hazardous products.


Available in 6” (150 mm) size, this device is mounted on the roofs of tanks and can be used in place of conventional gauge hatches with the following features:

  • Negligible loss of vapor
  • Operators not exposed to hazardous vapors
  • No product spillage due to wiping of the tape
  • Conforms with the requirements of Institute of Petroleum Measurement Manual Part IV Section 3.7
  • Accommodates thermometers manufactured to the Institute of Petroleum Specification with overall and immersed lengths of 340 mm and 65 mm respectively.


The Slot Dipping Device has been designed to provide a convenient and safe means of manually measuring the levels and temperature and taking samples of petroleum, petrochemical, chemical and other volatile or hazardous liquids in bulk storage tanks, in pressures of up to 40” (1016 mm) WG.

The device can accommodate both heavy and light dip weights and also the Temperature and Sampling Device.

The Temperature and Sampling Device has been designed to provide a means of taking samples and temperature of products stored in bulk in the petroleum, petrochemical, chemical and allied industries. When used in conjunction with the Slot Dipping Device which is suitable for pressures up to 40” (1016 mm) WG, loss of vapor is greatly reduced.