PPR core tube

Product Name: Random copolymer polypropylene PPR+special material

Specification and model: Φ 20- Φ 63

Product color: Green

Raw material selection: Korean Xiaoxing+special materials

Operating temperature: 0 ℃ -60 ℃ (insulation materials are required for outdoor or low-temperature areas)

Usage pressure: 16-25 kilograms

Installation method: Hot melt connection (pressure test must be conducted after hot melt installation to prevent hidden dangers)

Product Introduction

PPR net core pipelineThe inner wall of the PPR core series is smooth, with a low friction coefficient and stronger water flow capacity. The smooth inner wall can reduce the possibility of dirt and grime accumulation inside the water pipePPR pipeOne of the advantages of the Tao. This launchPPR core tubeThe Dao series PPR pipes have a unique ceramic texture inner wall, and their inner surface smoothness is twice that of ordinary PPR pipes, with a higher degree of smoothness, making household water use smoother and cleaner. In order to provide users with healthier and safer water quality, the Clean Core series PPR pipes use high-quality PPR raw materials to achieve continuous and long-lasting cleanliness of the pipe wall. At present, most PPR pipes in circulation on the market can be used as both cold and hot water pipes, and users need to calculate the length of the cold and hot water pipes when choosing. The PPR core series PPR pipes are made with high specifications and standards, and the pipes can be used for both hot and cold water, eliminating the trouble for users and installers during pipeline laying.

Product Features

1. Strict selection of materials, meticulous manufacturing, more reassuring use

2. Green shading, less prone to algae formation, healthier water usage

3. Mirror like inner wall, not prone to scaling, ensuring water safety

4. Ceramic texture, low water resistance, smoother and quieter to use

5. High specification and high standard, universal for hot and cold water, more convenient for selection

Precautions

1. PP-R pipes have lower hardness and lower rigidity than metal pipes, and should be protected during transportation and construction to avoid mechanical damage caused by inappropriate external forces. After concealed installation, the position of the pipeline should be marked to prevent secondary decoration from damaging the pipeline.

2. PP-R pipes have a certain degree of low-temperature brittleness below 5 ℃. Be careful during winter construction and use sharp cutting tools to slowly cut the pipes. The installed pipelines should not be subjected to heavy pressure or knocking, and if necessary, protective covers should be placed on areas that are susceptible to external forces.

3. PP-R pipes are prone to aging and degradation under long-term exposure to ultraviolet radiation, and must be wrapped with a dark protective layer when installed outdoors or in direct sunlight.

4. Except for using mechanical connection methods such as threaded inserts or flanges to connect PP-R pipes with metal pipes or water dispensers, all others should be connected by hot melt to integrate the pipes without any leakage points.

5. The coefficient of linear expansion of PP-R pipes is relatively high (0.15mm/m ℃), and technical measures must be taken to prevent pipeline expansion and deformation when laying pipes openly or indirectly.

6. After pipeline installation, pressure testing must be conducted before sealing (direct burial) and covering the decorative layer (non direct burial concealed laying). The pressure test of the cold water pipe shall be 1.5 times the working pressure of the system, but not less than 1MPa; The test pressure for hot water pipes shall be twice the working pressure, but not less than 1.5MPa. Technical regulations for pressure testing time and methods.

scope of application

1. High end residential area direct drinking water system pipeline network.

2. Transportation system for beverages, purified water, and mineral water.

3. Pipeline transportation systems in hospitals, schools, and water plants.

4. Drinking water systems for villas, hotels, and residential areas.

5. Pipeline transportation systems for food, medicine, and processing plants.

6. High standard water quality pipeline transportation system.

Installation steps

1. Cutting: When cutting pipes, the end face must be perpendicular to the pipe axis. Pipe cutting generally uses pipe cutters or pipe cutting machines, and sharp steel saws can be used if necessary, but the cut surface of the pipe should be free of burrs and edges.

2. Cleaning: Use a clean cloth to clean the welding parts of pipes and fittings (recommended to wipe with alcohol), and the connecting end faces of pipes and fittings must be clean, dry, and free of oil stains.

3. Marking: Mark the pipe according to the welding depth specified in Table 1:

4. Heating: After the hot melt machine heats up, insert the pipe and fittings into the hot melt mold head without rotation. Stop when the pipe reaches the marking position:

5. Welding: After reaching the heating time, the pipe and fittings are pulled out without rotation, and the pipe is inserted into the fitting socket without rotation, and left to cool for a certain period of time.

Note:

Hot melt connection should be used between water supply polypropylene pipes and pipe fittings of the same material, and special hot melt tools should be used for installation. Emphasis should be placed on concealed walls, and pipes within the floor surface must be connected using hot melt instead of threaded or flanged connections.

The connection between water supply polypropylene pipes and metal fittings should use polypropylene fittings with metal inserts as a transition. The fittings should be hot-melt connected to plastic pipes and threaded to metal fittings or sanitary ware hardware accessories. In addition, when connecting valves, faucets, and metal fittings, elbows and tees should be equipped with fixed supports and firmly fixed on the wall.

Suppression steps