250ZJ-I-A60 250ZJ-I-A63 250ZJ-I-A65 250ZJ-I-A68 250ZJ-I-A70 250ZJ-I-A75 250ZJ-I-A80 250ZJ-I-A85 250ZJ-I-A90 250ZJ-I-A96 250ZJ-I-A103 300ZJ-I-A56 300ZJ-I-A60 300ZJ-I-A65 300ZJ-I-A70 300ZJ-I-A75 300ZJ-I-A85 300ZJ-I-A90 300ZJ-I-A95 300ZJ-I-A100 Mechanical Seals

Structural features:

Double-end face non-container mechanical seal. Offers excellent sealing performance and easy maintenance. Non-balanced design, with optional rotation direction.

Internal working length is short. Multiple spring compensation ensures even pressure distribution on the sealing surfaces.

Applicable medium:

Media with a high content of impurities such as liquids.

Work parameters:

Fixed substance content: ≤30%

Warm Temperature: ≤280°C

Press Force: ≤2.5 MPa

Axis Diameter: ≤200mm

Material parameters:
Main material: 304, 316L or 2205, 2507, 1.4529
Sealing ring material: Cemented carbide Or SiC
Rubber materials: Fluororubber or perfluoroether rubber

Main applications:

This type of mechanical seal is primarily used in various mineral processing slurry pumps.

Common pump numbers are as follows:

25ZJ-I-A15 25ZJ-I-A25 40ZJ-I-A17 40ZJ-I-A19 40ZJ-I-A25

40ZJ-I-A30 40ZJ-I-B35 50ZJ-I-A33 50ZJ-I-A30 50ZJ-I-A40

50ZJ-I-A45 50ZJ-I-A50 65ZJ-I-A30 65ZJ-I-A40 80ZJ-I-A33

80ZJ-I-A36 100ZJ-I-A36 100ZJ-I-A39 100ZJ-I-C42 100ZJ-I-A50

100ZJ-I-A60 100ZJ-I-A65 150ZJ-I-C42 150ZJ-I-A45 150ZJ-I-A50

150ZJ-I-B50 150ZJ-I-B55 150ZJ-I-A60 200ZJ-I-C42 200ZJ-I-A60

250ZJ-I-A50 250ZJ-I-A55 250ZJ-I-A60 250ZJ-I-A65 250ZJ-I-A75

300ZJ-I-A60 300ZJ-I-A75

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 end faces remain intact to prevent contaminants and dust from entering the sealing area.
3. During installation, avoid any impact or hammering 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.