High And Low Tempture Resistance PP Pipe Fittings

Introduction:

HDPE Compression Fittings have emerged as an essential component in fluid transportation systems, transforming the landscape of pipe connections and securement. This advanced solution boasts a multitude of benefits, positioning it as the preferred choice across diverse industries and applications.

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HDPE pipe fittings perform very well at both high and low temperatures. Here's a breakdown:

High temperature performance

Hydrostatic strength

HDPE tubes have excellent strength under high temperature conditions. For example, in the hydrostatic strength test at 80 ° C, the HDPE pipe can last 165 hours at a circumaxial stress of 3.5MPa, or 1000 hours at 3.2MPa, and can remain non-ruptured and non-leaking.

Heat resistance and oxidation resistance

The oxidation induction time of HDPE pipe at 200℃ reaches at least 20 minutes, which shows its excellent heat resistance and oxidation resistance, ensuring the long-term safety of the pipe at high temperature.

However, it is worth noting that high temperature environments may lead to accelerated aging and performance degradation of HDPE materials, especially when exposed to high temperature conditions for a long time. In addition, high temperature may also accelerate the evaporation of water inside the pipe, making the inner wall of the pipe rough, increasing fluid resistance, and reducing flow performance.

Low temperature performance

Low temperature impact resistance

The low temperature embrittlement temperature of HDPE pipe is very low, and it can be used safely in the temperature range of -60~60 ° C. Even in winter construction, due to the good impact resistance of its raw materials, it is not easy to produce pipe cracking.

Hydrostatic strength

In the hydrostatic strength test at 20℃, the HDPE pipe can last 100 hours under the circumferential stress of 8.0MPa, and the pipe body has no rupture and no leakage.

Although HDPE tubes perform well at low temperatures, polyethylene can still be at risk of brittle breakage at low temperatures. However, the low temperature performance of polyethylene can be effectively improved by adding a certain amount of anti-impact agent and crosslinking agent.

In SUMMARY:

HDPE pipe fittings show excellent performance at both high and low temperatures, with excellent stability and durability. However, when used in high temperature environments, attention should be paid to the risks caused by accelerated aging and performance degradation of the pipe; At low temperatures, although HDPE tubes have good impact resistance, measures need to be taken to prevent possible brittle fractures.

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