Building site socket welding machines
Building sites socket welding machines WIDOS are supplied in simple design - as a stand-alone heating element with individual sockets with diameters from DA 16 to DA 125 mm, or complete set with case.
These elements are equiped with electronic or thermostatic teperature regulation, control lamps for connection to a network, warming up indicator light, switch and plug-in cable. For weldings on buildings sites or in workshop, a different holders and storage racks are available.
Socket welding principle
Socket welding (or embouchure welding) is contact type of plastic pipes and fittings welding, it means, that welded surfaces are heated by contact with heating element.
It is necessary to warm up the welded parts up to demand temperature by sliding the pipe and fitting on to appropriate size of welding socket, which is mounted on heating element. When required heating time is elapsed, welded parts can be removed from welding sockets and without reciprocal twisting inserted into each other. Welding socket surfaces are slightly conical to allow create sufficient welding pressure. By this can be adequate pressure achieved also when the axial forces are too small and due to this fact, hand welding up to diameter DA 63 mm is also possible. For bigger diameters (up to DA 125 mm) is suitable to use welding machines for ensuring accuracy and coaxial alignment. When the pipe and fitting are joined together (during the minimal cool down period of approx. 30 seconds), it is necessary to fixate welded parts, and welding joint can be loaded not before 1 hour after the welding procedure has finished. Welding parameters for particular pipe diameters, e.g. heating time, cool down time, fixate time, etc., are stated in table.
Socket welding devices range of products:
- WIDOS Weldit 1 (DA 20 - 63) - complete set in steel case
- WIDOS Weldit 2 (DA 20 - 125) - heating element with one clamping position for welding sockets
- WIDOS MH 0090T (DA 16 - 90) - heating element with one clamping position for welding sockets
- WIDOS MH 0090E (DA 16 - 90) - heating element with one clamping position for welding sockets
- WIDOS MH 0160T (DA 16 - 125) - heating element with one clamping position for welding sockets
- WIDOS MH 0160E (DA 16 - 125) - heating element with one clamping position for welding sockets
