PPR тръба срещу 304 Неръждаема стомана,Което е Безопасност?

В контекста на надграждането на глобалната здравна осведоменост в 2025, качеството на питейната вода за домакинствата се превърна в основен въпрос, който вълнува потребителите. Проучванията показват, че 60 percent of water pollution comes from harmful substances such as heavy metals and plasticizers released by aging or poor quality pipes. This paper deeply compares 304 stainless steel pipe and PPR Drinking Water Pipeline two mainstream materials, to help you scientifically choose healthy drinking water pipes.

Част 1, 304 Сtainless Сteel Уатер Пipe: зigh-дnd гurable Визбор

1.1 Core features

Мaterial composition: Хранителен клас 304 неръждаема стомана (включително 18% chromium, 8% никел), through the ISO 2037 international certification ‌.

Вorrosion resistance: Experiments show that in the water quality with pH value of 6-8.5, the 30-year corrosion rate is lower than 0.03mm/ year ‌.

1.2 Advantages and Лimitations

‌Advantages:

0 plasticizer release, in line with WHO “Drinking Water sanitation standards” ‌;

High temperature resistance (-20℃~400℃), suitable for floor heating, water heater and other scenes;

Service life up to 50 години, low maintenance cost ‌.

‌Limitations:

High initial cost (около 3 times that of a PPR tube);

Installation requires professional welding equipment, DIY is difficult ‌.

Второ, PPR water pipe: economic and practical mainstream choice

2.1 Material analysis

азngredient: Произволен съполимер полипропилен (PPR), passed GB/T 18742.2 national standard ‌;

‌Пressure resistance: The pressure bearing capacity at normal temperature can reach 2.0MPa to meet the demand of family water supply ‌.

2.2 Advantages and Disadvantages

‌Advantages:

Достъпни, suitable for families on a limited budget;

Леко тегло, easy to bend, лесен за инсталиране;

Smooth inner wall, not easy to scale ‌.

Disadvantages:

Long-term use may release trace amounts of plasticizers (especially in high temperature water);

Weak UV resistance, easy aging when exposed outdoors ‌.

три, experimental data comparison: 304 stainless steel VS PPR

3.1 Bacterial growth rate test

3.2 Service life and maintenance cost

‌304 Сtainless Сteel тръба: Повече от 50 years of life, no need to replace regularly;

‌PPR‌ Водоснабдителна тръба: 15-20 years need to check the aging of the connection, the replacement cost is about $300/time ‌.

Част 2, зow То Вhoose Ттой бest Мaterial Аccording То Ттой гemand?

Family scene recommendation

Infant family/high-end housing: 304 stainless steel is preferred to avoid the risk of heavy metals;

Ordinary families/short-term use: PPR plumbing pipe is more cost-effective, but need to avoid being used in hot water pipes ‌.

Adaptation for Commercial Scenarios

Hotels and hospitals: 304 stainless steel must be used to meet high hygiene standards;

Office building, school: PPR pipeline suitable for room temperature drinking water system ‌.

Част 3,Installation and Maintenance Guide

1,Professional Installation Points

‌304 Сtainless Сteel тръба:

Use argon arc welding process to ensure that there is no leakage in the interface;

24 hours pressure test (≥1.5 times working pressure) ‌ after installation.

‌PPR‌ :

The temperature of hot melt connection should be controlled at 260±5℃ to avoid over-melting or virtual welding;

Reserve access port when concealed installation.

2,Suggestions for Routine Maintenance

Use an endoscope to inspect the inner wall of the pipe (especially the PPR pipe) every year;

Avoid flushing the pipes with strong acid/alkaline cleaners ‌.

Part 4,Questions & Answers

‌Q1: Which kind of material is more suitable for the old residential area reconstruction? ‌

А: Recommended 304 неръждаема стомана, strong pressure resistance and can adapt to complex water quality ‌.

‌Q2: Does PPR water pipe really release harmful substances? ‌

А: In line with the national standard PPR pipe safety standards, but to avoid being used for > 60℃ hot water long-term transportation ‌.

Доставчик

Luoyang Datang Energy Tech Co., ООД. е водещ китайски производител, специализиран във висококачествени пластмасови тръби и фитинги. Оборудван с най-съвременни автоматизирани производствени линии и поддържан от екип от 200 професионалисти, предлагаме обширна продуктова линия, включваща над 150 types of plastic pipes and fittings designed for water supply and drainage systems, пренос на газ, и системи за подово отопление. Нашите основни продукти включват PVC тръби и фитинги, PE (HDPE) Тръби и фитинги, PPR тръби и фитинги, и PEX тръби за подово отопление. 

Ако имате някакви запитвания относно нашите Здрави PPR тръби и фитинги, моля не се колебайте да се свържете с нас!

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