Niplast storage tanks logo in black and white

Frost Protection Systems

Tank Temperature Maintenance

  • Lagging And Cladding
  • Self-Limiting Electrical Trace Heating System
  • Removable Electric Immersion Heat System
  • Factory fitted

For chemicals that freeze in ambient temperatures or for process liquids needing to be kept at specific temperatures, Niplast has developed a number of  factory fitted temperature maintenance systems.

Following heat-loss calculation, accounting for liquid freezing point, lowest ambient temperature and the thermal conductivity of materials of tank construction, we will advise on the best method to employ to maintain the optimum temperature for the tank’s contents.

Niplast storage tanks can be factory fitted using 3 approaches: 

 Lagging and cladding the tank 

This method involves lagging the outside of the storage tank with 50mm of rockwool mineral wool, which is applied to both the walls and roof. The whole tank is then clad using the same thermoplastic as the tank body, to fully encapsulate the whole system. This insulation method also has the additional benefit of extending the corrosion protection to the external tank shell.  

We use two heating system methods:

Immersion heat system

This approach incorporates an electric immersion heater, positioned within a stainless-steel sheath that sits within the body of the tank. This allows for the heating element to be removed as needed, without requiring the tank to be emptied.  This is supplied with a thermostat and over-temperature cut-out to allow for complete control and site safety. 

Trace heating system

Working with the Lagging and Cladding system, self-limiting heating tape is applied to the outer tank body beneath the lagging, then fully clad in the same thermoplastic as the tank body. This method is preferable when the tank contains chemicals that cannot come into contact with stainless steel, as used in the Immersion method. This is supplied with a thermostat and over-temperature cutout to allow for complete control and site safety.

For expert advice on our temperature maintenance solutions, get in touch or request a no obligation quote today.

Start a Conversation

    alternatively - speak to a technician



    Today, with over 40 years of brand heritage, Niplast is an expert in manufacturing plastic bulk storage tanks or industrial tanks to strict CEN standard BS EN 12573 and its forerunner DVS 2205.

    Our long history of innovatively applying these standards to solve chemical storage problems sets us apart from other brands of underground water tanks and chemical storage solutions. Sometimes, you need to think outside of the tank!

    Contact Us
    Birds eye view on black tanks

    case studies

    Our Know-How In Action