PE seven-hole plum blossom pipe is mainly used in underground communication pipe network system. Next, the construction steps and product specifications of the seven-hole plum blossom pipe will be introduced in detail. 1. Execution standard

YD/T841.5 - 2008 "Plastic Pipe for Underground Communication Pipeline" 2. Construction process (1) Preparation before construction

The buried trench of the pipeline should be kept as straight as possible according to the design requirements and in accordance with the construction operation. If the bottom of the trench is not flat, a layer of fine sand can be laid. Be sure to remove the hard objects in the trench before embedding the pipe to prevent the deformation of the pipeline. When starting to bury the pipe, the porous pipe should be reserved for 1-10CM in the human well for subsequent cable threading. It is strictly forbidden for sediment and foreign objects to be mixed into the pipe during the embedding process. ( 2) Laying construction operation

pipe connection: place the pipe-like positioning rib facing up to clean the outer wall of the end pipe. Insert the direct end socket, pad a thick wooden board on the end face, and hit the wooden board with a hammer to make the pipe socket in place. At the direct other end of the receiving port, insert the other pipe and socket it in place, and then extend it to the next manhole. Length adjustment: In actual construction, the length of each pipe after connection is not necessarily the same as the length between the human wells. At this time, it is necessary to accurately measure the length of the pipe according to the actual length of the manhole, and saw it with a hacksaw to ensure that the saw mouth is flat and neat. After the docking is completed, the end that extends into the manhole should be plugged with a pipe plug to prevent foreign matter from invading. ( 3) Backfill soil operation

After the pipe is laid, it should be backfilled with fine sand or fine soil to the height of the buried pipe. Do not let the pipe be in a suspended state, and then backfill other soil. It is forbidden to smash large stones and large dry clods into the pipe. (4) Backfill soil quality requirements

backfill soil shall not contain stones, mud, broken bricks and other debris greater than 100mm. When filling soil, there must be no water in the trench, no backfill mud or corrosive soil is allowed, and there is no spring phenomenon after filling. After laying a PE plum blossom pipe, be sure to use a pre-piercer or a wire as long as the PE plum blossom pipe to pass through it. When the crossing can be completed, then piercing or laying the next pipeline, to avoid wasting manpower and material resources, resulting in repeated construction. (5) Special section of the treatment

When the pipeline passes through the area of serious damage by external force, the joint part is covered with cement concrete to ensure its absolute safety. (6) The connection operation

HDPE special plum blossom pipe joint, which is thin but has good shrinkage. Generally, there is no sealing problem after installation. If there is a sealing requirement, it can be blown with a hot air gun. Since the plum blossom pipe itself contains filling materials that increase hardness and has small shrinkage, the plum blossom pipe joint shrinks, which usually solves the sealing problem. If the sealing requirements are high, you can apply some PE glue to the end of the plum blossom pipe in the core of the joint in advance, and then blow it with a hot air gun after the joint is put on the butt sleeve. (7) Construction tips

When installing and using the plum blossom pipe for the first time, the first section (that is, the distance between two human wells) can be laid without backfilling. Try to pierce or two holes with a cable piercer, and after smooth penetration, proceed to the next section of laying, which will be more secure. Three, product specifications

product specifications outer diameter branch pipe inner diameter error Remarks seven-hole plum blossom pipe 32mm0.5 disc pipe up to 100 meters five-hole large plum blossom pipe 32mm0.5 disc pipe up to 150 meters five-hole plum blossom pipe 28mm0.5 disc pipe up to 200 meters five-hole small plum blossom pipe 26mm0.5 disc pipe up to 200 meters

Hubei AD Building Materials Co., Ltd. as Hubei seven-hole plum blossom pipe manufacturers, specializing in the production of pe seven-hole plum blossom pipe.

Source: Hubei AD Building Materials Co., Ltd., welcome to share! Hotline: 17399989993