JB-38 JB-48 JB-60 JB-65 JB-80 JB-038 JB-048 JB-060 JB-065 JB-080 Mechanical Seals

Structural features:

1. Single-acting, multi-spring design ensures even pressure distribution across the sealing surfaces. When in use, there is no need to consider the spring rotation direction.

2. Depending on the specific application, auxiliary sealing rings can be made from nitrile rubber, fluororubber, or ethylene-propylene rubber.

3. Complies with ISO 3069, DIN 24960, and GB 6556 standards, offering excellent versatility.

Applicable medium:

Oil, water, acids, bases, salts, and more

Work parameters:

Fixed substance content: ≤10%

Warm Temperature: ≤180°C

Press Force: ≤3.0 MPa

Axis Diameter: ≤100mm

Material parameters:
Main material: 304, 316L or 2205, 2507, 1.4529
Sealing ring material: Graphite, silicon carbide, tungsten carbide

Main applications:

This type of mechanical seal is primarily used in desalination pumps, clear water pumps, and chemical process pumps.

Common models:

SZE32-160 SZE32-200 SZE40-160 SZE40-200 SZE40-250 SZE40-315

SZE40-400 SZE40-315 SZE50-160 SZE50-200 SZE50-250 SZE50-315

SZE50-400 SZE50-315 SZE65-160 SZE65-200 SZE65-250 SZE65-315

SZE65-400 SZE65-315 SZE80-160 SZE80-200 SZE80-250 SZE80-315

SZE80-400 SZE80-315 SZE100-200 SZE100-250 SZE100-315 SZE100-400

SZE125-250 SZE125-315 SZE125-400 SZE125-315 SZE150-250 SZE150-315

SZE150-400 SZE200-250 SZE200-315 SZE200-400 SZE250-250 SZE250-315

SZE250-400, SZE250-315, SZE200-400

Common sealing models:

JB-38 JB-48 JB-60 JB-65 JB-80

Note: Since pumps have a wide range of applications, the sealing materials (friction pairs) also vary. To ensure reliable sealing performance,
The manufacturer recommends the following:
1. Clean water (without particulate matter conditions) – The dynamic ring friction pair is made of alloy, while the stationary ring friction pair is made of graphite.
2. Highly corrosive conditions (with particulate matter) – For the dynamic ring friction pair, select silicon carbide; for the stationary ring friction pair, also select silicon carbide.
3. Conditions involving particles and significant vibration – Select (alloy) for the dynamic ring friction pair, and (alloy) for the stationary ring friction pair.
4. Customization is also available upon customer request. If no specific request is made, the default option will be (clear water).

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 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 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.