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2020W

2020W

1. The mechanical seal features a modular design. Glass-lined reactors, special material reactors, and steel reactors all share a common platform for mechanical seal design. Customers can easily select the product based on the reactor type and standards to achieve optimal cost-effectiveness.
2. The bidirectional balanced design prevents the bottom end from opening under overpressure. An auxiliary system is required when the internal pressure exceeds 0.5 MPa, and cooling measures are necessary when the mechanical seal temperature exceeds 160°C. The installation height is increased by 80 mm.
3. The abrasive-type mechanical seal design uses a common platform. Simple conversion is achieved by changing the friction pair. The design already considers FDA and GMP standards and requires no structural changes.
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2009U

2009U

The cartridge-type structure allows for non-directional transmission. Its compact design makes it suitable for standard racks.
A comprehensive cooling system ensures a well-sealed operating environment.
The materials used in media contact are resistant to strong corrosion.
Auxiliary devices are required for pressures exceeding 0.3 MPa.
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FAQ

Frequently Asked Questions

faq
- Static sealing surface leakage: Check if the stationary ring seals (O-rings, V-rings) are aged, deformed, or missized. Replace with seals of the same specifications that are resistant to the medium and temperature. If the clearance between the stationary ring and the gland is too large, the stationary ring needs to be re-machined or replaced.
- Dynamic sealing surface leakage: Check if the sealing end faces of the dynamic and stationary rings have scratches, wear, or chipping. Minor scratches can be repaired by grinding; for severe scratches, replace the sealing ring directly. Also, confirm if the spring compression is appropriate. If insufficient compression, add gaskets; if excessive compression, reduce the number of gaskets.
- Leakage at the bushing-shaft mating point: Check if the bushing seal is damaged or if the clearance between the bushing and the shaft is too large. Replace the seal or re-grind the bushing.
- Excessive end face wear: If caused by particulate impurities in the medium, a filter needs to be installed; if caused by insufficient lubrication, a self-lubricating seal such as an impregnated graphite ring can be used, or an external flushing fluid (such as a clean liquid of the same medium) can be introduced.
- Shaft sleeve wear: Replace the shaft sleeve with one made of wear-resistant material, and adjust the coaxiality of the sealing cavity and the shaft to avoid uneven wear.
- Overheating of the sealing cavity: Check for blockages in the cooling system and clean the cooling pipes. If the medium temperature itself is too high, use high-temperature resistant sealing materials (such as silicon nitride ceramic rings or fluororubber sealing rings).
- Poor end-face contact due to spring failure: Replace fatigued or corroded springs with corrosion-resistant spring materials such as stainless steel, and ensure uniform spring compression.
- Coaxiality deviation: Recalibrate the coaxiality of the pump shaft and motor shaft, and adjust the radial runout of the sealing cavity and shaft to within the allowable range.
- Loose parts: Check whether the gland bolts and drive pins are loose. Tighten the bolts evenly to the specified torque, and replace worn drive pins.
- Material incompatibility with the medium: Replace the sealing material according to the characteristics of the medium (e.g., Hastelloy or PTFE for corrosive media; silicon carbide for high-temperature media).
- Improper installation: Strictly follow the installation specifications to avoid impact or scratches on the sealing surface and ensure that no impurities enter the sealing cavity during installation.
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