Products

Our Product

Precision Seals, Engineered for Reliability

Discover our range of high-performance mechanical seals, designed for diverse industrial applications to ensure safety, efficiency, and durability.

CARTEX Mechanical Seal is a double-face cartridge seal designed for demanding industrial applications. With high pressure and temperature resistance, it ensures stable and reliable sealing performance in corrosive and complex media.

The 502 mechanical seal is designed for reliable sealing in pumps and mixers handling oil, water, organic solvents, and mildly corrosive liquids. Its durable materials and simple structure ensure stable operation and long service life.

The 1527 Mechanical Seal is an internally mounted, single-spring, non-balanced seal designed for reliable performance in general chemical media. It handles a wide range of water, oil, and weakly corrosive liquids, with durable sealing faces made of graphite, silicon carbide, or tungsten carbide.

The 525 Mechanical Seal is an upgraded version of semi-automatic equipment, designed for high-solids slurries such as gypsum and lime. It offers reliable sealing performance in flue gas desulfurization systems of power plants, ensuring long-term stability and low maintenance.

The 502 mechanical seal is designed for reliable sealing in pumps and mixers handling oil, water, organic solvents, and mildly corrosive liquids. Its durable materials and simple structure ensure stable operation and long service life.

The 224 Mechanical Seal is designed for moderate chemical applications, offering reliable sealing performance with dual faces and a compact spring. Its robust construction ensures durability and smooth operation in corrosive environments.

204B mechanical seal features a balanced single-spring design with a single seal face structure, offering stable performance under low-speed and medium-pressure conditions. It is suitable for oil, acids, alkalis, and polymer suspensions, widely used in fermentation tanks, stainless steel reactors, and wastewater treatment equipment.

The 171 Mechanical Seal features an internal, balanced, single-face design, specially developed for media containing gypsum, lime slurry, and high solid impurities. It ensures stable performance and excellent wear resistance, widely used in chemical and paper industries.

155 Mechanical Seal is a single-face, non-balanced seal with fixed rotation and conical spring design. It is suitable for oil, water, and mildly corrosive media, delivering stable and cost-effective sealing performance under medium operating conditions.

The 152 / 212 Mechanical Seal is a PTFE bellows type single-face seal specially designed for strong corrosive media under low-pressure and low-speed conditions, delivering dependable performance and extended service life in chemical processing environments.

The 116U mechanical seal is a high-performance solution for wastewater, oils, and mildly corrosive chemical media. It features an internal single-face multi-spring design, offering high temperature and speed resistance, easy installation, and long service life.

The 113 mechanical seal is designed for wastewater and mildly corrosive media, featuring a robust structure and durable materials, with reliable sealing performance to ensure safe and stable equipment operation under high temperature and moderate pressure conditions.

Application areas

Sealing Solutions Across Industries

Our mechanical seals are engineered to perform reliably in demanding industrial environments across multiple sectors.

Cleanroom sealing solutions for sterile and strictly contamination-controlled production.

Robust seals designed for heavy-duty equipment and extreme operating conditions.

Reliable sealing for high-pressure, high-temperature, and corrosive environments.

Durable seals supporting continuous operation in marine and port equipment.

Stable sealing performance for continuous and high-moisture production processes.

Why Choose Our Sealing Solutions

With extensive experience in sealing technology, we deliver mechanical seals engineered for demanding industrial environments. From structural design to final inspection, every process is carefully controlled to ensure stable performance, safety, and long service life.

Why Tongmi

Engineering Expertise

Reliable sealing in diverse conditions.

Controlled Manufacturing

In-house production for consistent precision.

Strict Quality Inspection

Verified performance through inspection.

Application Solutions

Tailored sealing for specific applications.

FAQs

Sealing Questions, Answered Clearly

Mainly used in rotating equipment such as pumps, mixers, compressors, and reactors, widely applied in power plants, chemicals, petroleum, pharmaceuticals, food, marine, automotive, and other industries.

Mechanical seals feature minimal leakage, longer life, lower maintenance costs, and better environmental performance. We ensure stable operation under demanding conditions, reducing downtime.

Provide details such as media, temperature, pressure, speed, and shaft diameter. Our expert team will recommend standard or custom non-standard solutions tailored to your needs.

First check installation, shaft alignment, and media compatibility. We offer prompt after-sales response, including failure analysis, repair guidance, and technical support to resolve issues quickly.

We rigorously control every production step, including material inspection, multi-stage testing, and final performance verification, ensuring every product is a premium item.

Get Started

Precision Sealing, Building Reliable Futures

We specialize in premium mechanical seals, delivering strict quality and flexible customization to ensure your equipment runs safely and efficiently under demanding conditions. Contact us now to start a win-win partnership!