SCB428-2.0 SCB428-2.5 SCB428-3.0 SCB428-3.5 SCB428-4.0 SCB428-109062-2529 SCB428-109069-3029 SCB428-109075-3529 Mechanical Seals

Material parameters:

Main materials: 316L or 2205, 2507 、1.4529

Sealing ring material: SSiC or SiC

Rubber materials: Fluororubber or perfluoroether rubber

Mechanical seal structural features:

Single-surface, modular, multi-spring, with bearing-type design

Stationary type, externally mounted spring, flange-mounted

Applicable medium:

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

Work parameters:

Fixed material content: ≤30%

Warm   Temperature: ≤120°C

Press   Force: ≤2.5 MPa

Axis   Diameter: ≤120 mm

Main applications:

This seal is primarily used on the side-mounted agitators of absorption towers in flue gas desulfurization systems for coal-fired power plants, but it can also be applied to reaction vessels in industries such as chemical processing and paper manufacturing.

Common mixer models are as follows:

20SV25M-5.34 20SV25M-5.45 20SV25M-5.67 20SV25M-6.03

25SV25M-5.34 25SV25M-5.45 25SV25M-5.67 25SV25M-6.03

30SV25M-5.34 30SV25M-5.45 30SV25M-5.67 30SV25M-6.03

35SV30M-5.34 35SV30M-5.45 35SV30M-5.67 35SV30M-6.03

40SV30M-5.34 40SV30M-5.45 40SV30M-5.67 40SV30M-6.03

45SV30M-5.34 45SV30M-5.45 45SV30M-5.67 45SV30M-6.03

50SV30M-5.34 50SV30M-5.45 50SV30M-5.67 50SV30M-6.03

55SV30M-5.34 55SV30M-5.45 55SV30M-5.67 55SV30M-6.03

60SV30M-5.34 60SV30M-5.45 60SV30M-5.67 60SV30M-6.03

50SV35M-5.34 50SV35M-5.45 50SV35M-5.67 50SV35M-6.03

50SV35M-5.34 50SV35M-5.45 50SV35M-5.67 50SV35M-6.03

55SV35M-5.34 55SV35M-5.45 55SV35M-5.67 55SV35M-6.03

60SV35M-5.34 60SV35M-5.45 60SV35M-5.67 60SV35M-6.03

65SV35M-5.34 65SV35M-5.45 65SV35M-5.67 65SV35M-6.03

75SV35M-5.34 75SV35M-5.45 75SV35M-5.67 75SV35M-6.03

80SV35M-5.34 80SV35M-5.45 80SV35M-5.67 80SV35M-6.03

Mechanical seal model:

SCB428-2.0" SCB428-2.5" SCB428-3.0" SCB428-3.5" SCB428-4.0"

SCB428-V20 SCB428-V25 SCB428-V30 SCB428-V35 SCB428-V40

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 area of the equipment should be kept clean during installation, and sealing components must be thoroughly cleaned. Ensure that the sealing 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.