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Method Statement for Manufacturing and testing of

fittings made of HDPE in the Project Workshop

No. of pages: 4 pages

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Table of Contents

1.Equipments used

2.Field of application

3.Working range

4.Materials made

5.Skilled and trained personnel

6.Work Instruction of Fabrication.

7.Hydro test pressure for the end products

8. Issuing test pressure certificate

9.Safety criteria

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1.0 Equipments used- Welder machine type RITMO, Model: ALFA 400 CTBSection 4 of the Data File.

- Electrical Saw.2.0 Field of application

Manufacturing the following:

- Bends : Degree30o

, 45o, 90

o

- Tees : Diameter : 315 mm , 355 mm [ equal / unequal ]

3.0 Standard Used for Butt Heat fusion- ASTM (D 326103)Section 2 of the Data File.See Data File submitted under

reference JV/C4/ENG/2378 dated 25th

April 2011

4.0 Working range- From 100mm to 400mm dia.

- Bend dimensions according to DIN 16983part 1page 2- Section 3 of the Data

File.

5.0 Materials Used- HDPE pressure pipes SDR=11 (pressure rating 16 bar).

5.0 Skilled and trained personnel

- Trained certificate for the personnelSection 5 of the Data File

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6.0 Work Instruction of Fabrication Elbows and Tees:

6.1 Method of Fabrication the (Elbow (90))

Steps:-

1. Cut the pipe (HDPE) at in the cutting machine as shown below into two parts (A) &

(B).

2. Again cut the pipe part (B) at 45as shown in fig. and remove the part (D).

DBA

4545

3. Arrange the two parts of the 45angle cut pipes to form as 90as shown below.

90

B

A

4. Part the two part (A) & (B) in the welding machine to form 90and time the edges to

make good welding.

5. 90bend or Elbow is ready after welding process completed.

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6.2 Method of Fabrication the "TEESteps:-

1. Follow the steps (1), (2) & (3) of Elbow fabricating process to obtain 90Elbow as

shown in fig.

B

AC

2. After completer the Elbow, cut the 90concern of the Elbow at 45angle as shown in

fig. Remove the part .

3. Cut the other pipes part (e) at 45as shown in fig.

E45

4. Arrange the already fabricated Elbow with this pipe par (E) cutted 45angle to form

as 'TEE' as shown in fig.

EA45

B

5. Part these parts (A-B) & (E) in the welding machine to form 'TEE' and trim the edges

to mate good welding.

6. 'TEE' is ready after welding process completed.

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7.0 Hydro test pressure for the end products

- According to test method ISO 1167Section 6 of the Data File

- Burst pressure requirements according to ASTM D 32613 table 7 - Section 2 of the

Data File

8.0 Issuing test pressure certificate

- The Test will be done in the premises of Muna Noor Factory who shall issue the test

certificate.

9.0 Safety criteria

- See section # 16, 17 of Ritmo Manual technical data bookSee Section 4 of the

Data File.