Pvc downspout wants to prolong its service life. Learn to install it correctly after reading this.

PVC pipes are very popular in the market. From water pipes and pipes, pipes installed at home are basically used because of their excellent quality and patience. Now PVC pipes are widely used outside the city to replace traditional downpipes and become a new generation of PVC downpipes. Compared with indoor PVC pipes, they are more exposed to the outside, and the aging speed is very fast after feng shui and sun exposure. Therefore, the requirements for pipeline quality and usual maintenance measures are more stringent. The following small series has compiled some requirements and methods for the installation of PVC downspouts, hoping to help everyone.

1. Installation of pvc downpipe-introduction of structural requirements

Whether the tee and elbow of the pipeline turn are provided with thrust piers and the structural type of the piers is determined by the design. The piers of the pipeline should not be built on loose soil, and their backs should be close to thick soil. If there is no condition, measures should be taken to ensure the stability of the piers. Rubber cushion should be set between the pier and the pipeline to prevent the pipeline from being damaged. The curvature radius of pipe bending shall not be greater than 3 times of pipe diameter. ? Holes should be reserved or sleeves should be installed at the pipe wall. Pipes shall not have joints within the casing. Pipe and casing shall be filled with oil and hemp. In the well chamber set on the pipeline, the well wall should be pointing and plastered, the bottom hole should be waterproof, and the joint between the well wall and the pipeline should be sealed. Prevent groundwater infiltration. ? Pipes can adopt rubber ring interface (RR connection), adhesive interface (T-S connection), flange connection and other types, and rubber ring interface is suitable for pipes with an outer diameter of 63-315mm; Bonding is only applicable to pipes with outer diameter less than 16mm; Flange connection is generally used to connect rigid PVC pipes with cast iron pipes or other pipes.

ii. installation of pvc downpipe-introduction to construction specifications

the general laying process of pipes is to put pipes into grooves, joints, partially backfill, pressure test and fully backfill. Only when the conditions are not allowed and the pipe diameter is not large, can three pipes be connected on the groove and put into the groove smoothly. When laying water supply pipes in the trench, if the foundation of other materials is not specified in the design, it should generally be laid on undisturbed original soil. After pipeline installation, the cushion blocks used in pipeline laying shall be removed in time.

third, the correct installation method of pvc downpipe

1. PVC-U core foamed drainage pipe is used for sewage, with adhesive and flange joints.

2. According to the drawing requirements and the actual situation, measure the size according to the position of the reserved opening, and draw a processing sketch

3. Measure the pipe size according to the sketch and break the pipe. The fracture surface should be flush, and the flying thorns inside and outside the fracture surface should be removed with a file or scraper, and the outer edge should be filed at an angle of 15℃.

4. Before bonding, the socket should be inserted for test, and it should not be completely inserted, which is generally 3/4 of the depth of the socket. After the trial insertion is qualified, wipe the moisture and dust on the socket to be bonded with cotton cloth. If there is oil stain, acetone is needed to remove it. Apply adhesive with a brush, first apply the socket and then apply the socket, and then insert it vertically with force. When inserting and bonding, rotate the socket slightly to facilitate the uniform distribution of adhesive, and it can be bonded firmly in about 3-6min.

5. During the installation of plastic drainage pipes, lead wires can be used for temporary suspension, pre-installation, and the coordinates, position, elevation and slope of the pipe are adjusted to meet the design requirements for bonding, and the coordinates, elevation and slope of the pipe are corrected in time. After bonding and curing, install the fixed support, but it should not be clamped too tightly. When using metal support, rubber gasket must be placed at the contact with the outer diameter of the pipe.

6. The lowest floor and the highest floor of the drainage riser should be provided with inspection ports, and the center of the inspection port is 1.m from the ground.

7. After the pipeline is installed, the pipe hole should be blocked in time, and the formwork should be blocked according to the specification requirements. It is forbidden to climb or borrow the installed pipeline for other purposes.

according to the above installation method, the normal operation of the drainage pipeline can be achieved, and the normal service life of the pvc drainage pipeline can be guaranteed

but we also need to remind that we should do a good job in protection during the use of the pipeline, and prohibit strong activities such as trampling or smashing.

PVC downspouts not only need to be of good quality, but also need excellent installation techniques and measures by the installation master, so that they can be used smoothly in the future to achieve good results. Many people are very worried about the short quality and service life of PVC downspouts when they buy them, and then they basically choose to use those made by big manufacturers when they buy them. Because everyone attributed the quality of PVC downspouts to problems in production, Xiao Bian felt otherwise. If the installation process is not in place or the installation method is incorrect, the life of downspouts will be shortened. Therefore, I hope I can help you through the introduction above.

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