What is hdpe water supply pipe

 

What is hdpe water supply pipe

HDPE water supply pipes have been greatly developed and improved in terms of design theory and construction technology in construction, occupying a very important position in the field of building water supply pipe engineering, and have begun to gradually replace the more used PVC- U water supply pipe, PP-R pipe, aluminum-plastic composite pipe, steel-plastic composite pipe, etc. The rapid development of hdpe water supply pipes is mainly due to the use of advanced production technology and technology in the production of hdpe water supply pipes, which are formed by hot extrusion, with strong corrosion resistance, smooth inner wall, low flow resistance and high strength , Good toughness, light weight and other characteristics.

hdpe pipe

Application field of HDPE water supply pipe

HDPE water supply pipe is mainly used for: municipal engineering water supply system, building indoor water supply system, outdoor buried water supply system and residential area, factory area buried water supply system, old pipeline repair, water treatment engineering piping system, gardens, irrigation and other fields Industrial water pipes, etc.

But it should be noted that HDPE water supply pipes cannot be used for hot water pipes.

hdpe pipe made in china

Application characteristics of HDPE water supply pipe

1. It is easy to butt welding and electrofusion welding to form a closed anti-seepage system. When laying along the trench, it can reduce the amount of trench excavation earthwork and reduce the number of accessories.

2. Lightweight and easy to install and handle;

3. With strong wear resistance and good hydraulic performance, no external protection is needed for buried pipelines. It can be applied to earthquake and soil settlement areas in mining areas, and it can also be laid at the bottom of rivers by the sinking method.

4. Chemical resistance, internal, external, and microbial corrosion resistance, strong corrosion resistance, and good sanitary performance. It is suitable for transporting acidic and alkaline substances, sewage, natural gas, coal gas, and other substances;

5. Good environmental adaptability and frost resistance. Can be used for indoor and outdoor water supply pipelines.

6. Long service life.

7. Easy to recycle.

We are a professional HPDE pipes and fittings manufacturer ,We have advanced production equipment and excellent product quality, welcome to consult.

How to produce PE water supply pipe

 

Pe cable (optical cable) protection pipe

 

Pe cable (optical cable) protection pipe

PE cable (optical cable) protection pipe is a new type of casing material popularized and used in power engineering. With the rapid development of power cable buried laying projects, higher requirements are put forward for cable (optical cable) protection pipes. The cable (optical cable) protection pipes are made of polyethylene PE and high-quality steel pipes that have undergone sandblasting, shot blasting, plastic dipping Manufactured by coating, heating, and curing process. It is the most commonly used electrical insulating tube for protecting wires and cables. It is widely used because of its good insulation properties, high chemical stability, no rust, no aging, and adaptability to harsh environments.

Features of pe cable (optical cable) protection pipe

1. Corrosion resistance, long service life, and can be used in humid saline-alkali areas.
2. It is flame-retardant and heat-resistant. It can be used for a long time at a high temperature of 130 degrees without deformation and will not burn in fire.
3. High strength and high rigidity. It is used for direct burying under the carriageway without adding a concrete protective layer, which can speed up the progress of cable construction.
4. The pipe is flexible and can resist the damage caused by external pressure and foundation settlement.
5. It has a good anti-interference performance of external signals.
6. The inner wall is smooth and does not scratch the cable. The design adopts the socket connection mode, which is convenient for installation and connection. The rubber sealing ring seal at the joint not only adapts to thermal expansion and contraction but also prevents mud and sand from entering.

pe pipe

pe cable (optical cable) protection pipe product performance

1. High strength and high rigidity. It is used for direct burying under the carriageway without adding a concrete protective layer, which can speed up the progress of cable engineering construction.
2. The pipe is flexible and can resist the damage caused by external pressure and foundation settlement.
3. Corrosion resistance, long service life, and can be used in wet saline-alkali areas.
4. Flame-retardant and heat-resistant, it can be used for a long time at a high temperature of 130 degrees without deformation, and will not burn in fire.
5. The inner wall is smooth and does not scratch the cable. The design adopts the socket connection mode, which is convenient for installation and connection. The rubber sealing ring seal at the joint not only adapts to thermal expansion and contraction but also prevents mud and sand from entering.

Scope of application

It is suitable for telecommunications, power engineering, transportation, urban construction, and other fields.

https://www.pvcpipefitting.com/pe-cable-optical-cable-protection-pipe/

How to treat PVC pipe fittings against static electricity

 

How to treat PVC pipe fittings against static electricity

PVC pipe fittings are parts that connect pvc pipes into pipelines and are made of PVC materials. However, before use, due to material reasons, they need to be antistatic treatment. The manufacturer’s technicians will introduce the antistatic treatment method of PVC pipe fittings.

　Because the surface resistance of the PVC pipe fittings is large, the surface and the conducted charges do not flow, and it is easy to cause sparks when discharging. It is generally believed that the surface resistance of 10^6 ohms is a lower limit to prevent static electricity from accumulating. According to different purposes, the surface resistance of PVC pipe fittings used in underground mines should be maintained at 10^9-10^8 ohms, or lower than this value.

   When the surface resistance of PVC pipe fittings exceeds 10^13 ohms, there are two ways to resist static electricity. One method is to introduce static electricity into the raw material so that it can move to the surface, so its hydrophilic branch will have an antistatic effect, that is, reduce the resistance of the surface. At this time, air humidity is an important influence value (greater than 40%). Over time, the effect of this antistatic measure will become weaker. A better internal dopant is to add special carbon black with good conductivity, but the additional amount should be more than 15%. Such an additional amount will greatly reduce the material. The mechanical strength.

    For the antistatic of PVC pipe fittings, an insulating protective film can be added to the key, which can play an anti-static effect and protect the pipe fittings. Place the pipe fittings in a place with high air humidity. Larger air humidity can reduce the resistance. Play an antistatic effect.

https://www.pvcpipefitting.com/how-to-treat-pvc-pipe-fittings-against-static-electricity/

How to produce PE water supply pipe

 

How to produce PE water supply pipe

hdpe water supply pipe

 The main production process of PE water supply pipe production starts with the thickness of the raw material, the color masterbatch is stirred and dried, and the raw material is plasticized and formed into a viscous fluid. After passing through multiple processes at an appropriate temperature, the tubular embryo is obtained and then cooled, After cutting, the required product PE pipe is obtained, and the qualified products after the final measurement and testing can be packaged and shipped.

 Attention should be paid to drying, plasticizing, moulding, cooling and cutting in the production line of pe water supply pipes.

         1. Mixing and drying

　　The function of mixing and drying is to stir, dry and mix the PE resin and the color masterbatch to obtain a uniform raw material.

　　2, plasticizing extrusion

         The raw material enters the extruder from the hopper, and under the action of conveying, compression, melting, and homogenization, the solid particles gradually change to a highly elastic state, and then gradually change from a high elastic state to a viscous fluid (viscous fluid state), and continue Squeeze out.

　　 3. Mold forming

　　At a suitable temperature, the material extruded from the extruder passes through the filter plate from a rotary motion to a linear motion and enters the mold. After spiral splitting, it is fused and compacted into a tubular parison in the forming section, and finally extruded from the die.

　　4, cooling and shaping

　　The hot tube billet extruded from the die is shaped and cooled by the sizing sleeve vacuum sizing box under negative pressure, and then passes through the spray cooling box to gradually cool the inside of the pipe, thereby solidifying and setting the shape as a whole.

　　 5. Cutting

　　Cutting, by cutting into a certain length of pipe, so that the PE pipe is completed, the next step is inspection and packaging

 https://www.pvcpipefitting.com/how-to-produce-pe-water-supply-pipe/

How to connect cast iron drain pipe and pvc pipe

 PVC pipes and cast iron pipes can be seen everywhere in our daily life, whether it is home improvement or industrial drainage, they may be used, so if you encounter a situation, it is necessary to connect cast iron drainage pipes and pvc pipes, then yes How is it connected?

How to connect cast iron drain pipe and pvc pipe

     1. Seal the interface with a plugging spirit.

     2. Use a PVC head to reduce the diameter, insert the iron pipe into the reducer, do not move it after inserting it, let it be fixed.

     3. First, use the cast iron welding rod to change the cast iron pipe into the water in the vertical direction, preset a joint at the top of the subsequent pipe, and then connect the PVC pipe of your house to the joint, and align the joint with the one of your house. hole. Then in the cast iron joint, put waterproof putty around the pvc pipe, and then put on waterproof glue.

Flexible cast iron drainage pipe and pvc pipe connection

1. If the socket on the cast iron pipe (the big end of the cast iron pipe) is still there, directly insert the PVC pipe with the same diameter as the cast iron pipe.

　　2. First, use oil hemp silk to wind around the outside of the PVC pipe (a bit thicker than the seam after the socket, and ram it into the seam with a tool.

　　3. Then mix some cement with a small amount of water (it should be dry, the cement is basically loose after mixing), insert a small amount of cement into the seam, and smash it firmly with a tool.

　　4. After ramming the linseed wire around the outside of the PVC pipe into the seam, insert a small amount of cement into the seam to make it firm.

　　5. Repeat this a few times until there is no seam, and then finish it. Finally, just light the opening with a little damp cement.

　　6. If the original cast iron pipe does not have a big mouth, then use a PVC outer pipe to put it on the cast iron pipe first. The connection method of the PVC outer pipe and the cast iron pipe is the same as above.

https://www.pvcpipefitting.com/how-to-connect-cast-iron-drain-pipe-and-pvc-pipe/