Work Sheet PPR pipe work
Task : Assemble PPR pipe work

1.      Prepare materials, tools and equipment to be used.

The tools and equipment needed are:

-          Poly fusion welding machine

-          Polyvinyl Cutter / wheel cutter / Hacksaw

-          Allen key

-          Tape measure

-          Gloves 

1.      The Materials required are:

-         polypropylene Random  (PPR) pipes

-          Fittings (unions, elbows, tees, straight sockets etc

note that the Hack saw and blade is only needed when you have to change pipe type say PPR to GI other wise Vinyl cutter is the only recommended tool for cutting this type of pipe.

2.   Fix a 19 mm diameter heating models using  allen key 

3. connect the machine to power socket;

4.    Switch on the Poly fusion welding machine to make sure that the green light is on. The red light follows the green one showing that the machine has gone into automatic control.

5.   Cut the pipe on square using a vinyl cutter.

6. Heat the pipe and fitting as per    the depth given in the table.

7.Do not rotate pipe and fitting during heating, removing and cutting.

8.     For a 19 mm diameter pipe, the heating time is 5 seconds minimum and the working time  4 s whereas the cooling time is 2 s. The depth of weld is 14 mm.

9.    Fit a tee and an elbow all in the same direction. length of pipe to be cut is

300-28=272 mm

10. Fit a pipe 372 mm in the elbow and fit another 

11. Follow the same procedure as in 10 and 11

12. Repeat the procedure as in 9 to 11

13. Fit an equal tee in the middle and weld as in above. 

14. Unions are a key in easy dismantling of pipe work and should be fitted. 

15. Tighten the union and begin on the second model.

wow!! the project looks like this.

Try understanding the procedure. you will learn how to join PPR pipes and fittings using the poly fusion welding machine.

happy blogging!! 

prepared by.

Gilbert Niwamanya

Instructor Nakawa Vocational Training Institute

Uganda.