In 2025, the requirements for sealing performance in the industrial sector will continue to upgrade under harsh conditions such as high temperature, high pressure, and extreme temperature differences. The octagonal gasket product developed by Wenzhou Huahai Sealing has achieved stable applications in core fields such as petrochemicals, energy extraction, and LNG storage and transportation due to its excellent adaptability, becoming a key support for ensuring the safe and efficient operation of industrial systems.
According to industry testing data, the Huahai octagonal gasket is made of high-quality stainless steel materials such as 304 and 316L, which can withstand extreme temperatures ranging from -200 ℃ to 800 ℃. The sealing pressure covers 2.0MPa to 42MPa, and the leakage rate is as low as 1 × 10 ⁻⁹ Pa · m ³/s, fully complying with international standards such as API 6A and ANSI B16.20. In the 10 million tons/year refining project of Sinopec Zhenhai Refinery, the octagonal gasket has been running continuously and stably for more than 3 years under 380 ℃ and 5.0MPa conditions, with a sealing surface wear of only 0.03mm, far exceeding industry standards. The equipment maintenance cycle has been extended from twice a year to once every 3 years, and the annual maintenance cost of a single equipment has been reduced by more than 500000 yuan.
In extreme environmental applications, the Huahai octagonal gasket performs particularly well. At a domestic LNG receiving station, it is adapted to ultra-low temperature storage and transportation conditions of -196 ℃, reducing the sealing failure rate from 15% to 0.5% and reducing downtime for maintenance by more than 120 hours per year; In deep-sea drilling platform projects, its resistance to seawater corrosion is three times higher than ordinary products, and the service life of a single well is extended to more than 10 years. Relying on 0.005mm precision machining technology and 12 strict inspection processes, the qualification rate of Huahai octagonal gaskets has reached 99.98%. Currently, it has been widely used in over a thousand industrial projects in more than 30 countries worldwide, helping domestic seals achieve import substitution in high-end working conditions.
There are many types of RTJ gaskets, including R Gasket,RX Gasket,BX Gasket, SBX Gasket,IX Gasket,flange connections,and various customized products.We will do more sharing about ring joint gasket.