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National Standard Series
171 Series Seals
The 171 series mechanical seal is a high-performance single-face sealing solution renowned for its high reliability, long service life, and ease of maintenance. Specifically designed for complex operating conditions involving solid particles and prone to clogging, it is suitable for industrial pump equipment across multiple industries and offers stable, durable sealing performance.
M74N Series Seals
Corrosion- and wear-resistant configuration: The sealing faces can be configured with combinations such as silicon carbide/graphite or tungsten carbide/tungsten carbide; the base material is stainless steel, providing resistance to moderately corrosive media including water, oils, acids, alkalis, salts, and organic solvents.
169 Series Seals
The 169 series mechanical seal is an externally mounted, single-face sealing solution specifically designed for applications involving highly alkaline media containing crystalline particles. It boasts exceptional wear resistance and corrosion resistance, making it ideally suited for critical equipment in industries such as chlor-alkali and salt production.
113 Series Seals
The 113 series mechanical seal is a classic single-face, non-balanced sealing design specifically engineered for applications involving clean water, wastewater, and moderately corrosive media. With its compact structure and stable performance, it is well-suited for equipment such as multistage pumps and represents a cost-effective sealing solution for industrial and chemical pumps.
106 Series Seals
The 106 series mechanical seals represent a cost-effective, standard sealing solution for industrial applications. Featuring three core structural elements—external springs, static ring compensation, and an internal design—they strike an ideal balance between performance and ease of maintenance. These seals can operate reliably over extended periods even under harsh operating conditions, making them the preferred choice for import substitution as well as for original equipment manufacturer (OEM) spare parts.
WB2 Series Seals (Corrosion-Resistant Pumps)
The WB2 series mechanical seal is an economical, practical, and reliably performing industrial sealing solution. Its core design features a PTFE bellows combined with an externally mounted single-face seal, making it suitable for a wide range of corrosive media applications. Customized configurations are available upon request. This seal represents a cost-effective alternative to imported seals in industries such as chemical processing and environmental protection.
