Polyethylene welding machinery

Quality of welded area and its efficiency depends on welder’s skill, efficiency and good performance of welding machine and equipments plus considering principles of work. PE welding is usually done from end to end of pipes with a hot plate (Butt Fusion).

Butt fusion jointing procedure :

• Pipes are situated in both clamping jaws (mobile and fixed) of the welding machine. After necessary adjustments, clamps are fastened.
• A trimmer is positioned between two pipe interfaces to clean and soften the edges and then removed.
• Position a hot plate with controlled temperature of 210-220 ˚c between the pipes to join their edges while the pressure is raised -according to welding instructions- to make an even bead all around the outer diameter of pipes. 
• Decrease the pressure to melt the inner layers of jointing area thoroughly.
• Remove the heater plate carefully -unclamping the pipes – leaving pipes undamaged. 
• Fuse two ends of pipes rapidly and increase pressure gradually and hold it till cooling the welding area.
• Cooling period depends on pipe thickness. Joint area should not be under any uncontrolled excessive pressure.

• The edge of molten surface should be as a two piece bulge which implies an even welding process. 

  

Precise guidelines and necessary trainings are available at articles section.

Butt fusion for jointing 200mm to 500mm under pressure pipes of water supply and sewage:

Welding machine Descriptions:

1. Main board with specific clamp sizes up to 500mm
2. Hydraulic unit plus a two electromotor and a hydraulic pomp.
3. Trimmer disc with electromotor and a gearbox of 1500watt.
4. Teflon coated non-stick hot plate with 4000watt elements.

Butt fusion for jointing 90mm to 250mm under pressure pipes of water supply and sewage:

1. Main board with specific clamp sizes up to 250mm
2. Hydraulic unit with electromotor power
3. Non stick Teflon coated hot plate equipped with 1500watt elements.

PE Pipe

PE Fitting

PE Manhole

PE Welding