Application of Mount Taishan Valve in Corrosive Pipeline

In some industries such as chemical, chlor alkali, polycrystalline silicon, electroplating, etc., the medium inside pipelines usually has acid-base properties. Metal valves usually have poorer acid-base resistance than plastic valves, because metal valves contain metal and carbon elements that react with acid-base substances, while plastic valves have organic elements that are less likely to react with acid-base substances. From a long-term perspective, it seems that, Plastic valves have a trend to replace metal valves, but metal valves have their unique strength characteristics and play an irreplaceable role in both industrial and civilian fields.

Usually, plastic valves have poor rigidity and temperature resistance compared to metal valves. In some high temperature and high pressure situations, even medium temperature and medium pressure situations, metal valves are still the design choice.

When the temperature is above 80 degrees, plastic valves are prone to deformation, and even good PVDF valves cannot be used for a long time in pipeline systems above 80 degrees. CPVC is typically used in environments below 60 degrees, while UPVC is used in environments below 45 degrees.

In addition, plastic valves are not resistant to some aromatic substances. In the chlor alkali industry, damp chlorine gas can also cause corrosion of PVDF valves. Soft sealed valves are generally sealed with PTFE NBR FPT EPDM SI and other sealing components. These seals each have their own unique properties. Generally speaking, PTFE is one of the seals with good performance. However, due to its high hardness, it is not suitable for sealing valves in low-pressure pipelines because it is prone to cracking and leakage. F46 is its intermediate product, which overcomes its hard characteristics, but also loses its corrosion resistance and temperature resistance.

In humid chlorine gas, SUS316 hard sealed metal valves are still irreplaceable products, although their service life is also relatively short. In some domestic chemical industries, many units experience crystallization on the valve body after using PVDF valves.

Under special working conditions and harsh conditions, Mount Taishan Valve always grasps the quality lifeline, makes breakthroughs in processing technology, and pays attention to details. Under the condition of ensuring the purity of raw materials, the precision of various components, and at various nodes that are prone to leakage, preventive measures should be taken to select appropriate sealing units, and basic processing such as bore, throwing, milling, turning, etc, We have built a reputation in the field of special pipelines and equipment.

Its important cited customers, such as Indonesia Golden Paper High Corrosion Pipeline Control Valves in the chemical industry, Wuxi Suntech Photovoltaic, Nantong Zhonggu Photovoltaic Plant, Shanghai Nippon Lingyou Chemical, and so on, are countless to name a few

Metal valves for high-rise fire protection pipeline systems such as Guizhou Power Plant, Global Wood Steam Pipeline System, and Wuhan New World Building in the field of high-pressure pipelines.

Every product of Mount Taishan is elaborately made. In the company's 30 years of historical development, there has never been a serious quality accident.

Mount Taishan Valve Technology Business Department www.szfushan.com

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