PE-RT EVOH Pipe

Description

EVOH has always been the most widely used high-barrier material. In addition to the non-stretch type, the film types of this material include two-way stretch type, aluminum vapor deposition type, adhesive coating type, etc. Among the two-way stretch type, heat-resistant types are used for aseptic packaging products. The barrier performance of EVOH depends on the content of ethylene. Generally speaking, when the content of ethylene increases, the gas barrier properties decrease, but it is easy to process. The salient feature of EVOH is that it has excellent gas barrier properties and excellent processability. In addition, it has excellent transparency, gloss, mechanical strength, elasticity, abrasion resistance, cold resistance and surface strength.

Advantage

In the early 1980s, technicians discovered that in the hot water circulation system using plastic pipes, the metal parts in the equipment were easily corroded, causing rapid damage to the equipment. In 1982, experts concluded that when the pipe is heated, oxygen molecules will more easily penetrate the plastic layer and penetrate into the water in the pipe, causing rapid corrosion of the metal parts in the equipment. As a result, the oxygen barrier tube was developed.

The utilization rate of oxygen-barrier pipelines in the heating system reaches 70%. After nearly two decades of practical experience, the life of metal components in the oxygen-barrier pipeline system can be extended by 10-20 years.

Features

Oxygen barrier. Extend the service life of the system. EVOH prevents oxygen from penetrating into the water or air in the pipe, greatly extending the service life of metal valves, switches, boilers, manifolds and other metal parts in the entire pipeline system.

Health. Since the infiltration of oxygen necessary for the survival of microorganisms is prevented, the existence of microorganisms in the system is inhibited.

The oxygen barrier tube also has the advantages of corrosion resistance, non-scaling, low heat loss, energy saving and environmental protection, flexible and easy to bend, good fluid mechanics performance, and long life of other high-temperature floor heating pipes.

The pipe has good toughness, large bending radius, low construction intensity, and convenient construction.

The pipe has good oxygen barrier properties, which can effectively delay the corrosion of metal parts in the system, extend the service life of the metal parts, and reduce the scaling of the piping system. Mainly used in various heating systems.

Distinguish the authenticity

1. Look at the surface of the floor heating pipe. The surface of the good-quality floor heating pipe is relatively smooth without bumps, bubbles, obvious color difference and impurities, and the floor heating pipe indicates the model, specification and brand of the floor heating pipe. The printing on a good floor heating pipe is clear and not easy to fall off.

2. Feel whether the pipe has furrows with your hands. Good quality pipes feel delicate and smooth to the touch, with moderate hardness.

3. Compare the flexibility and wall thickness of floor heating pipes. The wall thickness of individual floor heating pipes is marked as 2.0. Some floor heating pipes are marked with a wall thickness of 2.0, but the wall thickness is actually not up to that. However, good quality floor heating pipes The wall thickness can meet the requirements, and is the same as the label. When you have no choice but to distinguish the pipes, you may compare two pipes to see which one has the thicker wall.

4. The method is adopted when the detection part is monitored and the detection part is susceptible to the floor heating pipes. In some cases, the floor heating pipes used by the floor heating company are all qualified products, and there are inspection reports and warranty commitments. Simple pipes The quality test method may be carried out by the naked eye and hand feel, but the test method of the function index can only be carried out in the laboratory.

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