The driving head prevents damage to the top of the female thread and solid copper earth rod when driving into the ground. These reusable Wallis screw heads are suitable for driving earth rods manually or with an electric hammer. The driving head is screwed into a threaded joint to allow the rod to be pushed deeper.

A common misconception among designers of stormwater treatment plants is to use the driving head of rise (Δz), which is the physical descent between the inlet and outlet pipes, as the total driving head, rather than hydraulic descent between upstream and downstream water levels. . Complete and direct the head (Δh).

This relationship between the elevation driving head (Δz) and the driving head (Δh) can be further explained in Figure 1 below. The physical pressure difference (Δz) between the inlet and outlet pipe slabs is shown as 240mm and the drive head (Δh) at maximum handling peak flow is shown as 750mm between the exit slab and the outsole of the diversion. In this configuration, the minimum position where the inlet pipe can overflow the raw water upwards is 510 mm (Δh – Δz).



  • CPRI Tested
  • It is durable and requires no maintenance.
  • A unique manufacturing process ensures a uniform thickness of the copper coating.
  • Easy to install and hard to damage.
  • It does not rust and offers the lowest resistance to the ground.
  • Production of variable options to meet customer demand.
  • Easy to install and very beautiful appearance.
  • Copper is 99.9% pure. The conductivity is therefore very good.


  • Corrosion resistant surface
  • Excellent electrical and thermal conductivity
  • Advanced technology with effective engineering
  • Easy to install


  • Electrical Industry
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