150 TL-500, 200 TL-500, 250 TL-500, 300 TL-500, 350 TL-500, 400 TL-500, 400 TL-710, 450 TL-660, 500 TL-630, KTL-80, KTL-120, KTL-140A Mechanical Seals

Mechanical seals are categorized into single-face cartridge-type and double-face cartridge-type.

Single-end face-mounted: Only 1 pair of sealed mating surfaces, Pre-assembled by the sealing manufacturer at the factory, requiring no customer adjustments—simply install as is. Easy to set up and straightforward to use. Cooling water pressure is controlled at 0.05-0.1MPa Between

Single-face seal image

Dual-end-face modular design: Consisting of 2 pairs of sealed mating surfaces, Pre-assembled by the sealing manufacturer at the factory, requiring no customer adjustments—simply install as is. Easy to set up and straightforward to use. Cooling water pressure is controlled at 0.05-0.1MPa Between

Double-End Face Seal Image          

Double mechanical seals typically refer to externally mounted double seals, which are a derivative of the single-end external design (by replacing the water-side skeleton oil seal in the single-end configuration with a tandem set of mechanical seals), aiming to extend service life.

Structural features:

Single-end (double-end) cartridge-type mechanical seal. Easy to install and simple to use. Balanced design, with optional rotation direction.

Internal working length is short. The stationary ring features multi-spring external compensation that does not come into contact with the medium.

Applicable medium:

A medium with a high content of impurities such as gypsum and lime slurry.

Work parameters:

Fixed substance content: ≤30%

Warm Temperature: ≤280°C

Press Force: ≤2.5 MPa

Axis Diameter: ≤250mm

Material parameters:
Main material: 316L or 2205, 2507, 1.4529
Sealing ring material: SSiC or SiC
Rubber material: Fluororubber or perfluoroether rubber

Main applications:

This type of mechanical seal is primarily used in flue gas desulfurization systems for coal-fired power plants, and is suitable for applications such as absorption tower slurry circulation pumps, gypsum slurry pumps, limestone slurry pumps, and gypsum discharge pumps.

Sealed model:

KTL-80 KTL-120 KTL-140A

Installation Use Requirements :

1. The radial runout of the equipment shaft should not exceed 0.04 mm, with axial runout not exceeding 0.1 mm;
2. The sealing cavity areas of the equipment should be kept clean during installation, and sealing components must be thoroughly cleaned. Ensure that the sealing end faces remain intact to prevent contaminants and dust from entering the sealing area.
3. During installation, avoid any contact or tapping to prevent damaging the mechanical seal through friction, which could lead to sealing failure.
4. During installation, apply a layer of clean machine oil to the surfaces that will come into contact with the seal, ensuring smooth installation.
5. When installing the stationary ring gland, tighten the screws evenly to ensure the stationary ring face is perpendicular to the shaft centerline.
6. After installation, gently push the moving ring by hand to ensure it moves freely along the shaft while maintaining some elasticity.
7. After installation, manually rotate the shaft—there should be no sensation of unevenness or heaviness.
8. Before starting operation, the equipment must be fully charged with the medium to prevent dry friction, which could lead to seal failure.