Tubular & Finned Elements

Tubular elements can be used in a range of applications; from air, water, oil to chemical solutions and defrost. They are a versatile means of heating an application and can be straight, or formed to a required shape and can reach temperatures of 800°C.

A tubular element consists of nickel chrome resistant wire, which is spot welded to a terminal pin. The nickel chrome wire is insulated by MgO powder, which is then housed in an outer sheath.

Example of Applications

  • Defrost (refrigeration)
  • Air/wet applications
  • Oil/chemical applications
  • Castings
  • Food industries

Benefits

  • Available as straights, or can be formed to drawings or samples
  • Custom wattages and voltages available with varying cold zones
  • Elements in 6 material choices in 5 different diameters
  • Range of element terminations avaialble from cabled ends to spade terminals
  • Variety of fixings available, ranging from brazed ferrules to custom fixing plates
  • Bespoke design solutions available on request
  • High temperature MgO option availavle for heating up to 800°C
  • Finned elements available for air applications

When choosing a tubular element for a certain application there are set parameters that need to be considered. Whilst standard requirements are wattage and voltage, other parameters are sometimes not so obvious. Sheath wattage must also be considered which determines the working surface temperature of the element – this can be critical to the application as many of the media in which our elements are applied will have maximum contact temperatures. Aspects such as electrical and mechanical connections must also be considered at the design stage.

  • Formed (Tubular) Elements

    Applications that require a heat source often have differing application demands such as restricted operating space or very specific local heat zones in shaped objects.

    To help solve your specific requirements, Heatrod have a fully trained engineering team who can assist with specification, design and manufacture of tubular elements for your application. Our products are produced using traditional manual methods through to CNC controlled bending machinery.

    A small selection of tubular element designs are shown here:

    Tubular Element designs
    • Tubular Elements - technical data
      Tubular Elements Technical Data
      • Finned Elements - technical data

        Square Finned Elements Surface enlarged element Ø (brick dim): 8 (50x25), 8.5 (50x25), 10 (70x40) or 14 (80x40) mm

        Fin material: Alu zinc or stainless steel

        Accessories: Nipples, fixing plates




        Finned Elements Surface enlarged element Ø (d/D): 6.4/18, 8/18 8/24, 8.5/22 8.5/28, 10/20 10/26, 12/22 12/28, 14/34 16/32, 18/34 mm

        Fin material: SS1160, EN 1.4301

        Accessories: Nipples, fixing plates



        Tube materials

        Mild steel - Grade D

        Stainless steel: EN 1.4301, EN 1.4404, EN 1.4541, Incoloy 800, EN 1.4828

        Connections

        One or two end connection: M34, cables flat pin or acc. to customer specification

Applications: Fixings & Electrical Connections;

With tubular heaters being so versatile and able to work in a variety of applications, aspects such as electrical connections and a means of fixing the element to an application need to be taken into consideration.

  • Defrost Applications

    Electrical Connection

    Tubular Element designs

    Vulcanised Neoprene 2.5mm Silicone Leads

    2.5mm & 5mm Thick Joint available

     

     

    • Air Applications

      Fixings

      Crimped Bush

      ¼"BSP Thread x ½" Crimped Collar

      ¼"BSP Thread x 1" Crimped Collar

      3/8"BSP Thread x ¾" Crimped Collar

      3/8"BSP Thread x 1" Crimped Collar

       


      Air application fixing plate

      Fixing plates made to suit specific customer requirements

       

       

       

       

      Electrical Connection

      Male Spade Terminal

      Male Spade Terminal



       



      Double Male Spade Terminal

      Double Male Spade Terminal

       

       

       

       

      Female Spade Terminal

      Female Spade Terminal

       

       

       

       

      Heat Proof Cable

      1.5mm Heat Proof Cable

      2.5mm Heat Proof Cable

      • Wet, Oil & Chemical Applications

        Fixings

        Crimped Bush

        ¼"BSP Thread x ½" Brazed

        ¼"BSP Thread x 1" Brazed

        3/8"BSP Thread x ¾" Brazed

        3/8"BSP Thread x 1" Brazed

         

         

        Compression Fitting

        Compression Fitting:

        ¼"BSP Thread x ½" Brass

        3/8"BSP Thread x ½" Brass

        ¼"BSP Thread x ½" 316SS

        3/8"BSP Thread x ½" 316SS

         

        Air application fixing plate

        Fixing plates made to suit specific customer requirements - brazed joints





        Electrical Connection

        Male Spade Terminal

        Male Spade Terminal



         



        Double Male Spade Terminal

        Double Male Spade Terminal

         

         

         

         

        Female Spade Terminal

        Female Spade Terminal

         

         

         

         

        Heat Proof Cable

        1.5mm Silicone Cable

        2.5mm Silicone Cable

Other cables and fixings available - please enquire.