PREMANT district heating pipe

Tapping technology

Preparation of weld seam and seam structure

Weld-on end with seam preparation

PRE 6.532

Weld seam structure:

Place the tapping fitting directly on

the base pipe, without a gap.

E-weld (2 - 3 layers) with Kb electrodes, basic (alkaline)

Type E5155B10 DIN 1913 Ø 2.5 mm

Important during welding!

• Ball must be exactly in the open position.

• Avoid excessive temperature stress on the Teflon seals by cooling the fitting between the individual

weld seam layers (cool the fitting with a wet cloth / waiting time between individual weld seam layers)

Thread for tapping tool

Imbus screw

Tighten after the connecting pipe is commissioned (block the ball) and

weld to the housing all the way round.

1

Make sure that no welding deposit

penetrates the inside of the tapping

fitting. Bevelling of weld-on end as per

DIN 2559, joint type 22

60°

17.1.2025 BGP

Subject to technical changes