1. Preparation area for the piping To have density.And must be level. "The same plane as the base support pipe.To meet that standard contract.

2.Cleaning both sides of the pipe end will wear rubber ring. Which must be free of all soil and rock. The only term used for tire wear rings. To meet standards of Manufacturers.

3. The method for rubber ring and adaptor insert  for test hydro test pressure   sector areas wear tube.

3.1 to lubricate rubber ring. And exposure of the skin while wearing rubber with oil,

lubricants. Or no toxic substances. And do not effective to rubber ring.

3.2 When put into the rubber ring groove and rubber. The distribution of skin tight rubber

ring by pulling. And emissions into the tire groove. Every line of rubber wear ring.

3.3 adapter for pressure testing the water pipe wear areas. The head of the adapter flat

close to the surface of the pipe along with the need for a tight competition.

4. Wear pipe end together. Do not have any zero skew. Until deep into the  coordinates to wear rubber ring on the set manufacturers.

5. To avert vertical pipe. (The slope) after completing step 4, then any deviation to be 3 mm per 1000 mm

6. Test pressure after wearing the pipe joints, each joint was.Standards set. To ensure the wearing of rubber ring joints that. The test pressure of pipe joints per piece.To install the next piece.

7. If the type is embedded underground pipes to make embedded filling. And compressing the ground that the contract proposal. If the pipe is placed on concrete base. Must hold tight to the seat tube that the contract proposal.

8. When through every step as this. To test the pressure of each study period at all the suggestions in the test water pressure after installation.

After assembly and installation standards of that contract. Successfully (eg soil after filling pipes for underground pipes embedded. Fastening strap and belt to complete the pipe for pipe placed on concrete base), so make sure the order is ready to test the water The next step is.

1. The water pressure test each pipe length range must not exceed 2500 meters for Glass fiber pipe diameter 1000 mm, Type C PN 6.

2. Pratorabai air it must open all points.

3. Fill with water to normal atmospheric pressure continued slowly.  To rid the air in the pipe line and water until the water fully confident that close then Pratorabai air.

4. To increase the water pressure 2 kg / cm 2 (2 bar) to stop 2 hours left

5. Compression pressure to 6 kg / cm 2 (6 bar) standard pipe PN6 and stop leaving 24 hours

6. Add more pressure by not more than 1.5 times that of standard pipe.Then maintain the pressure for 10 minutes reduced pressure not exceeding 0.5 kg / cm 2 (0.5 bar)