What are the specifications of common PVC water pipes?

The common specifications of PVC drainage pipes are equal specifications, and different specifications have different wall thicknesses. PVC-U drainage: fittings are: direct, elbow, tee, extension joint, inspection hole, water trap, floor drain.

Breathable caps, fillers, and more. (The elbow has 90 degrees and 45 degrees, and the tee has a different diameter, such as 75*.) 160*110, etc.) PVC-U water supply:

Fittings are: direct, elbow, tee, internal elbow, internal tee, internal thread direct, external thread direct, large and small head, ball felling and so on PVC line pipe: fittings have straight joints, elbows, tees, pipe clamps, ......Plastic pipe 4 points is 20, 6 points is 25, the same 1 inch is 32, and so on, all plastic water pipes and line pipes are the same specifications, but there is a difference with iron pipes, iron pipes start with 15, and iron pipes 15 also correspond to 20 of plastic pipes.

PVC is the abbreviation of (Polyvinylchlorid), the main ingredient is polyvinyl chloride, and other components are added to enhance its heat resistance, toughness and ductility. The top layer of this surface ** is lacquer, the main component in the middle is polyvinyl chloride, and the bottom layer is the back-coated adhesive. It is a kind of synthetic material that is loved, popular and widely used in the world today.

It has the second highest global use of all synthetic materials. According to statistics, in 1995 alone, PVC production in Europe was about 5 million tons, while its consumption was 5.3 million tons. In Germany, PVC is produced and consumed on average at 1.4 million tons.

The specifications of general household water pipes are: DN15 (4 pipes), DN20 (6 pipes), DN25 (1 inch pipe), DN32 (1 inch 2 pipes), DN40 (1 inch half pipe), DN50 (2 inch pipes), DN65 (2 inch half pipes), DN80 (3 inch pipes), DN100 (4 inch pipes), DN125 (5 inch pipes), DN150 (6 inch pipes), DN200 (8 inch pipes), DN250 (10 inch pipes), etc. Water pipe 25 1 2 means that its outer diameter is 25.

The actual corresponding nominal diameter is DN20 (that is, people often say 6 tubes). You can go and buy a 6-point faucet. You can also go and buy a 4-point faucet (just add a variable diameter between the pipe and the faucet).

The style and material of household faucets are ever-changing, but the threaded parts connected to the pipe are divided according to the size of 4 points, 6 points, 1 inch, etc. Don't worry about buying the wrong one. Usually the 4 subdivision is in inches, so the 4 subdivision is 1 2 inches (4 8 = 1 2), and one inch =, so the inner diameter of the 4 subdivision is, and this is the inner diameter of the DN15 water pipe.

4 points is the name of the diameter length of the imperial pipe, that is, 1 2 inches is equal to 8 cents in the metric system, and the metric points = 3 4 inches = minutes = 1 2 inches = 15mm. In addition, keep in mind that the pipes are calculated with the inner diameter, but the threads of the pipes are calculated by the middle diameter, which is represented by the diameter DN, and the threads are divided into metric M and imperial G, and the pipe threads are generally made of inch, and the thread angle is 55 degrees. The metric system is 60 degrees.

More commonly used PVC pipe specifications and models: PVC threading pipe has: 16, 20, 25, 30, 40, 50, 75, 90, drainage pipe has 40, 50, 75, 90, 110, 160, 200, 250, 315, 400, water supply pipe has 20, 25, 32, 40, 5, 63, 75, 90, 110, 160, pipe (UPVC pipe) hard PVC pipe, is made of PVC resin with stabilizer, After the lubricant is combined, it is extruded by hot pressing, and it is the first plastic pipe to be developed and applied.

UPVC pipe has strong corrosion resistance, easy bonding, low quality, and hard texture, but due to the seepage of UPVC monomer and additives, it is only suitable for water supply systems with a conveying temperature of no more than 45.

Common specifications. The conventional specifications of commonly used PVC pipe drainage pipes are as follows: The nominal outer diameters are:

32mm, 40mm, 50mm, 75mm, 90mm, 110mm, 125mm, 160mm, 180, 200mm, 250mm, 315mm, 400mm, 500mm, 630mm, etc. The length of PVC-U pipes is generally 4m or 6m, and other lengths are determined by negotiation between the supply and demand parties.

PVC pipe drain pipe is made of sanitary polyvinyl chloride (PVC) resin as the main raw material, adding an appropriate amount of stabilizer, lubricant, filler, color enhancer, etc., through plastic extruder extrusion molding and injection molding machine injection molding, through cooling, curing, shaping, inspection, packaging and other processes to complete the production of pipes and pipe fittings.

1. As a threading pipe, the common sizes are 16mm, 20mm, 25mm, 30mm, 40mm, and 50mm.

2. PVC pipe is also often used as a water pipe, its diameter is 20mm, 40mm, 50mm, 90mm, 110mm, 200mm, etc.

3. There is also a kind of PVC pipe is the drainage pipe, the diameter of the drainage pipe is also the largest among all PVC pipes, and the household generally uses 160mm or less, and the drainage pipe in industrial sites has 200mm, 250mm, 400mm, 500mm and other sizes.

Extended Materials. There are three main connection methods of PVC pipe: sealing ring, bonding and flange connection. Pipes with a diameter greater than or equal to 100 mm generally use rubber ring interfaces; For pipes with a diameter of less than 100 mm, bonded joints are generally used, and union joints are also used. Metal pipes are generally used when pipes cross sewers or other pipes, and plastic pipes are flanged to metal pipes.

When small-diameter pipes are bonded with solvents, the sockets must be rounded to form a groove and ensure that the fractures are flat and vertically aligned, so that the bonds can be firm and avoid water leakage.

Generally, PVC pipes with a diameter greater than or equal to 100 mm are connected with rubber rings. Before installation, personnel must be arranged to chamfer the pipe socket part, and check whether the quality of the rubber ring is qualified. During installation, the socket and rubber ring must be wiped clean.

The excavation of the pipe trench of the traditional pipeline installation only requires that the pipeline can be put into the pipe trench and can be sealed, and the original soil layer can not be compacted without pressurization.

Dimensions:

Hard PVC pipes have a nominal outer diameter of 50cm, but the largest soft PVC pipe is generally 50mm.

Hard PVC Pipe Specification: GB T13020-1991 Soft PVC Pipe Specification: GB

Hard PVC pipes have nominal outer diameters: (unit mm) and so on.

Different types, different sizes, different sizes, give you a comparison table.

PVC pipe drain pipe is made of sanitary polyvinyl chloride (PVC) resin as the main raw material, adding an appropriate amount of stabilizer, lubricant, filler, color enhancer, etc., through plastic extruder extrusion molding and injection molding machine injection molding, through cooling, curing, shaping, inspection, packaging and other processes to complete the production of pipes and pipe fittings.

The first idea of common specifications.

The conventional specifications of commonly used PVC pipe drainage pipes are as follows: the nominal outer diameter is: 32mm, 40mm, 50mm, 75mm, 90mm, 110mm, 125mm, 160mm, 180, 200mm, 250mm, 315mm, 400mm, 500mm, 630mm, etc. The length of PVC-U pipes is generally 4m or 6m, and other lengths are determined by the supply and demand parties.

PVC drain pipe.

Use of materials. Underground water pipes, PVC pipes, ABS (acrylonitrile-butadiene-styrene copolymer), unplasticized polyvinyl chloride (UPVC), CPVC (post-chlorinated polyvinyl chloride), PP (polypropylene).

Production standards. GB: GB

Benefits: 1.The surface hardness and tensile strength of the pipe are excellent, and the safety factor of the pipe is high.

2.It has good aging resistance, and the normal service life can reach more than 50 years.

3.The pipeline has excellent corrosion resistance to inorganic acids, alkalis and salts, and is suitable for industrial sewage discharge and transportation.

4.The friction coefficient of the pipeline is small, the water flow is smooth, it is not easy to block, and the workload of bucket slag protection is less.

5.The material has a high oxygen index and has the ability to quietly self-extinguish.

6.The expansion coefficient of the pipeline line is small, and the deformation is small due to the influence of temperature. The thermal conductivity and elastic modulus are small, and the ice resistance is excellent compared to cast iron drainage pipes.

7.Pipes and fittings can be connected by bonding, the construction method is simple, the operation is convenient, and the installation efficiency is high.

8.Good water tightness: The installation of PVC-U pipes, whether they are connected by adhesives or rubber rings, has good water tightness.

Pro, the models and types of PVC water supply pipes are: the commonly used PVC water supply pipe specifications are mainly based on the nominal outer diameter, which are 32mm, 40mm, 50mm, 75mm, 90mm, 110mm, 125mm, 160mm, 200mm, 250mm, 315mm, 400mm, 500mm, most PVC drainage pipe specifications have a certain gap, which is a normal phenomenon. The length of PVC-U pipes is generally 4m or 6m, and other lengths are determined by the negotiation between the supply and demand parties.

PVC is polyvinyl chloride, English abbreviation PVC (polyvinyl chloride), is vinyl chloride monomer (VCM) in peroxide, azo compounds and other initiators; or polymers polymerized under the action of light and heat according to the reaction mechanism of free radical polymerization. Vinyl chloride homopolymers and vinyl chloride copolymers are collectively known as vinyl chloride resins. The material is an amorphous material.

PVC materials are often added with stabilizers, lubricants, auxiliary processing agents, pigments, impact inhibitors and other additives in practical use. It has non-flammability, high strength, resistance to climate changes and excellent geometric stability. PVC is highly resistant to oxidants, reducing agents, and strong acids.

However, it can be corroded by concentrated oxidizing acids such as concentrated sulfuric acid and concentrated nitric acid, and is not suitable for contact with aromatic hydrocarbons and chlorinated hydrocarbons. Hope it helps!

PVC water pipe is a material used more in daily life, the effect is very good, and the quality is also very good, but when purchasing, you need to pay attention to its specifications and sizes to ensure normal use. What are the specifications and models of PVC water pipes?

The conventional specifications of PVC drainage pipe can be divided into 32-90mm according to the nominal outer diameter, with the minimum range between 32mm, 40mm and 50mm. The medium size is between 110 and 200 mm, with the most used being 110 mm and 125 mm. There are also some slightly larger specifications, mainly 250mm, 315mm, 500mm, 630mm, etc.

And it has two lengths, one is 4 meters or 6 meters, of course, the specific length can also be customized according to needs.

What are the properties of PVC water pipes?

1. The drainage pipe is made of PVC material, the first point is that its main component is polyvinyl chloride, and the moistening acacia slip agent, filler, etc. are added to it, and after extrusion, it will go through a series of processes. It can be used as an underground water pipe, with a high safety factor, in line with national standards, high hardness, good anti-aging performance, and a normal service life of more than 50 years.

2. It is also suitable for acid and alkali resistant environment, and can meet the requirements of industrial drainage. As a drain pipe, the most worrying problem is the blockage. The resistance of this kind of pipe is relatively small, which can ensure a smooth flow of water and is not easy to block. The later maintenance is simple, which can reduce the amount of work in the section.

3. In addition, PVC pipe fittings can be connected in a different way, so the construction is relatively simple, which can bring better water tightness, such as choosing the connection method or choosing a rubber connection, which can bring a certain sealing impact.

I summarize: The above introduction is the specifications and models of PVC water pipes, and its specifications are mainly divided according to the outer diameter, some are larger, some are smaller, and the applicable occasions are not the same. Relatively speaking, the performance and indicators can meet the needs of drainage.