● PVC-U pipe is applicable for the transportation of liquids no more than 45℃.

● Pressure grade over 1.0MPa PVC-U pipes should be adopt inside the building pressure pipes and use the special adhesive provided by the company.

● The pipes should be concealing buried or take relative protection methods in the places may be often collided places.

● While the PVC-U pressure pipe is buried in the outdoor exposing places and freezing basements, the light weight material should be adopted in the freezing or sunlight irradiation places to thermal insulation and heat preservation.

● PVC-U pressrue pipe should be buried fat away from heat.

● PVC-U pipe desige flow rate shall not be over 1.5m/s, normally 1.0-1.3m/s.

● It is strictly prohibited to be stroked, thrown ,fallen, rolled and dragged, and collide with the shape objects in transporting, loading and unloading and storage the PVC-U pipes. It also should avoid sludge oil and sunlight irradiation. The stock place should be flat and tide. The expansion end of the flared pipe should be alternately stocked to avoid distortion.

● The adhesive joint should not be consturcted in rain/water & under 5℃, and the rubber ring joint should not be constructed under -10℃. The adhesive construction site is strictly prohibited from fire.

◆ The inserting length reference to the following table while the pipe adopts the rubber ring joint (R-R joint).

◆ See the following table for the standing solidifying time while adopting the adhesive joint(T-S joint).

                                                                                      In  min

◆ The adhesive with color changed, agglomeration and deposition should be prohibited to be used.

◆ The pipes and appearance of the parts must be checked in installing and using.The broken and distorted one is prohibited from consturction.