Common Models of Mechanical Seals

HU1 type HU1 type mechanical seal complies with ISO3096DIN24960 and GB6556 standards. The auxiliary sealing roll can be made of rubber "O" ring and PTFE "V" ring of the same specification according to the working conditions. Single spring, unbalanced shift fork transmission, strong compensation ability, independent of shaft rotation during installation. The friction material and auxiliary sealing material can be selected according to actual working conditions. Scope of application: Sealed media: oil and water, crystalline strong alkali, salt, high-solubility fluid, slurry, organic solvent and other weakly corrosive solutions. Sealing chamber pressure: ≤1Mpa Sealing chamber temperature: -20℃~220℃ Linear speed: ≤15m/s

HU3 type HU3 type mechanical seal complies with DIN24960 and GB/T6556-94 standards. It can replace 116U and 59U type mechanical seals. It is an unbalanced type, single-end structure, and any rotation direction. It is suitable for all kinds of sewage pumps, chemical pumps and thermal circulation pumps. Spring options include: butterfly spring, multi-spring, etc. Please select the friction material and auxiliary seal material according to the actual working conditions. Scope of application: Sealed medium: oil, water, acid, alkali, salt and other general corrosive media. Sealing chamber pressure: ≤1.6Mpa Sealing chamber temperature: -50℃~220℃ Linear speed: ≤20m/s

HU5 type HU5 type mechanical seal complies with DIN24960 standard. Back-to-back installation also complies with DIN24960 standard double-end mechanical seal. It is a partially balanced type, rubber bellows, single spring, single-end structure. The moving ring is driven by the interference of the rubber bellows and floats. It has good performance and the spring also plays a role in transmitting torque. Please select the friction material and auxiliary seal material according to the actual working conditions. Scope of application: Sealed medium: wastewater containing particles, oil, and sewage. Sealing chamber pressure: ≤1.6Mpa Sealing chamber temperature: -20℃~140℃ Linear speed: ≤10m/s

HU7 type HU7 type mechanical seal complies with DIN24960 and GB/T6556-94 standards, and can replace the 108U type mechanical seal. It has an unbalanced, conical spring structure, and the rotation direction of the spring is related to the rotation direction of the shaft. The friction material and auxiliary sealing material can be selected according to actual working conditions. Scope of application: Sealed media: sewage pumps, submersible pumps, chemical pumps, circulation pumps, clean water pumps and heating systems. Sealing chamber pressure: ≤1Mpa Sealing chamber temperature: -20℃~180℃ Linear speed: ≤15m/s

HUU803 type HUU803 type mechanical seal complies with DIN24960 and GB/T6556-94 standards. It is an unbalanced type, with a multi-spring structure and double ends, and is driven by a transmission sleeve. The sealing chamber pressure must be 0.1-0.2Mpa higher than the medium pressure. Please select the friction material and auxiliary seal material according to the actual working conditions. Scope of application: Sealed medium: acid, alkali, salt, sea water, gas, flammable, explosive and toxic media. Sealing chamber pressure: ≤1.6Mpa. Sealing chamber temperature: -50℃~150℃. Linear speed: ≤20m/s.

HBM1 type HBM1 type mechanical seal complies with DIN24960 standard. It is a single-end, balanced, arbitrary-rotation metal bellows type seal. The moving O-ring and flexible graphite ring do not have a compensation function, so there is no resistance to the movement of the bellows. It is suitable for high temperatures. , high viscosity medium. Please select the friction material and auxiliary seal material according to the actual working conditions. Scope of application: Sealed medium: oil, acid, alkali and other general corrosive liquids. Sealing chamber pressure: ≤2.5Mpa when the bellows is subject to external pressure; ≤1.5Mpa when the bellows is subject to internal pressure; Sealing chamber temperature: -20℃~400℃ Linear speed: ≤15m/s

HBM5 type HBM5 type mechanical seal is a single-end, balanced, rotating metal bellows mechanical seal. The moving ring part and the shaft sleeve are connected as a whole. The entire mechanical seal is packaged, which simplifies the installation process. It can be adjusted outside the pump to facilitate installation. Mechanical seals are simpler. It is widely used in chemical, paper, sewage and other industries. Please select the friction material and auxiliary seal material according to the actual working conditions. Scope of application: Sealed media: oil, water, sewage, weak acid, weak alkali and solutions containing a small amount of micro-particles, etc. Sealing chamber pressure: ≤2Mpa Sealing chamber temperature: -30℃~200℃ Linear speed: ≤25m/s

HQ901 type HQ901 type mechanical seal is an externally installed, single-end, multi-spring, static, balanced structure. The spring does not contact the medium and has a short axial dimension. It can replace the skeleton oil seal, the modular design simplifies the installation process, and the installation is simpler and more convenient. Please select the friction material and auxiliary seal material according to the actual working conditions. Scope of application: Sealed medium: oil, water and other liquids. Sealing chamber pressure: ≤1.6Mpa Sealing chamber temperature: -20℃~160℃ Linear speed: ≤20m/s

HQ902 type HQ902 type mechanical seal is a single-end, balanced, multi-spring, static mechanical seal. There is no contact between the spring and the medium, and the containerized design makes installation simpler. Please select the friction material and auxiliary seal material according to the actual working conditions. Scope of application: Sealed medium: oil, water, sewage, acid, alkali solution. Sealing chamber pressure: ≤1.6Mpa Sealing chamber temperature: -20℃~160℃ Linear speed: ≤20m/s

HG9 type HG9 type mechanical seal is a single end face, unbalanced rubber bellows structure. HG9 type mechanical seal's G60 complies with DIN24960 standards, G50 complies with European standards, and G55 complies with American standards. It has good floating adjustment performance and can enhance or reduce the coil of the spring. Number, to adapt to axial installation requirements, simple structure, easy installation, good working performance, recognized by international authoritative water pump factories, and deeply welcomed by users. Please select the friction material and auxiliary seal material according to the actual working conditions. Scope of application: Sealed media: cold water, hot water, beverages, weak acids and weak alkali, various media containing particulate matter. Sealing chamber pressure: ≤0.8Mpa Sealing chamber temperature: -20℃~140℃ Linear speed: ≤10m/s

HU21 type HU21 type mechanical seal is mainly used for harsh media in various pipeline pumps, sewage pumps, clean water pumps, submersible pumps and other working conditions. Its installation size is short and its balance coefficient is high. It can replace a variety of light mechanical seals: Gram Mechanical seals such as Lan 502, 2100, Burgmann MG1, domestic 109, BIA, FBD, etc. rely on rubber to drive the card and shift fork transmission, which effectively avoids the failure and aging speed of the rubber bellows. Scope of application: Sealed medium: oil, water, and other general corrosive liquids. Sealing chamber pressure: ≤0.6Mpa Sealing chamber temperature: -40℃~120℃ Linear speed: ≤15m/s

HQ3272 type HQ3272 type mechanical seal is mainly used in various imported multi-stage pumps and used in various water treatment conditions. Its compact design and short appearance size allow it to be used in any working conditions, and it is easy to install and operate. Scope of application: Sealed medium: oil, water, sewage, acid, alkali solution. Sealing chamber pressure: ≤1.6Mpa Sealing chamber temperature: -20℃~160℃ Linear speed: ≤20m/s