CPVC pipe connection method and construction process

Update:20 Feb 2021

In the selection of water and electricity pipelines, CPVC pipes are one of the most widely used pipes. Its temperature resistance and corrosion resistance are very welcome. This article will tell you about the three connection methods of CPVC pipes and its construction. Process and testing methods.

CPVC power pipe connection method

1. Socket joint

   Socket joints include: single seal ring socket joint; double seal ring socket joint, sleeve joint; socket glued joint.
   Socket glue joint is a kind of socket joint without sealing ring. When assembling, apply the adhesive on the contact surface. This is the most commonly used joint form in small diameter pipelines.

2. Flange connection

   FRP flanges can be produced by hand paste method, fiber pure winding method, and molding method. Molded flanges are used for low pressure (under 3.5MPa) and small diameter pipes (under 203mm).

   FRP flanges can be connected with the existing Jinlin flanges on the pumps and the metal pipes of the door.

3. Threaded connection

  Threaded connection is a commonly used mechanical connection joint for small-gram diameter pipelines. It is a tapered threaded joint with 8-tooth round thread specified by API standard.

The construction sequence of CPVC power pipe

1. The indoor civil construction is basically completed, the site is cleaned, and the indoor horizontal line is marked. Arrange the pipes and discharge the line according to the design requirements. Determine the length of the pipeline and the specifications, models and quantities of fittings such as tees and elbow traps based on actual measurements.

2. Measured piping, prefabricated in sections, and bonded. Pay attention to the bonding: the pipe should be cut with a fine-tooth saw, the section is smooth and perpendicular to the center line of the pipe; the cut-off file is 45° bevel; the pipe mouth should be wiped clean with cotton yarn, and the oil should be wiped off with alcohol; Brush the outside of the tube and the socket memory evenly, without missing the coating but thick; after the socket socket is connected, it should be left for a few minutes.

3. After the system is installed, let it stand for 24 hours to make the bonding firm and firm, and wipe off the excess glue.

CPVC power pipeline construction quality inspection method

When conducting the closed water test of CPVC power pipe fittings, the outlet should be blocked, clean water should be injected into the system, and the water should be closed for 24 hours. The water level in the system does not drop, and no leakage is qualified.
It should be noted that a professional construction team must be selected for installation, so as to ensure a good installation effect.