UUMXT-35, UUMXT-45, UUMXT-55, UUMXT-65 Mechanical Seals

Structural features:

1. Double-acting, multi-spring design ensures even pressure distribution across the sealing surfaces. When in use, there’s 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:

In media that are prone to crystallization, contain particles, or include fibers—such as oils, water, acids, bases, and salts—

Work parameters:

Fixed substance content: ≤30%

Warm Temperature: ≤180°C

Press Force: ≤4.0 MPa

Axis Diameter: ≤200mm

Material parameters:
Main material: 304, 316L or 2205, 2507, 1.4529
Sealing ring material: Graphite, silicon carbide, tungsten carbide
Rubber materials: Nitrile rubber, fluoro rubber, ethylene-propylene rubber, silicone rubber

Main applications:

This type of mechanical seal is primarily used in various types of water pumps, chemical pumps, sewage pumps, and pulp pumps.

Main applications:

KCC40X25 -125 KCC40X25 -160 KCC40X25 -200 KCC4 0X25 -250

KCC 50 X 32-125 KCC 50 X 32-160 KCC 50 X 32-200 KCC 50 X 32-250

KCC 65 X 40-125 KCC 65 X 40-160 KCC 65 X 40-200 KCC 65 X 40-250

KCC 65 X 40-250 KCC 65 X 40-315 KCC 65 X 50-125 KCC 65 X 50-160

KCC 65 X 50–200 KCC 65 X 50-250 KCC 65 X 50-250 KCC 65 X 50-315

KCC 80 X 50-125 KCC 80 X 50-160 KCC 80 X 50–200 KCC 80 X 50-250

KCC 80 X 50-250 KCC 80 X 50-315 KCC 80 X 65-125 KCC 80 X 65-160

KCC 80 X 65-200 KCC 80 X 65-250 KCC 80 X 65-250 KCC 80 X 65-315

KCC 100 X 65-160 KCC 100 X 65-200 KCC 100 X 65-250 KCC 100 X 65-315

KCC 100 X 80-125 KCC 100 X 80-160 KCC 100 X 80-200 KCC 100 X 80-250

KCC 100 X 80-250 KCC 100 X 80-315 KCC 125 X 100-200 KCC 125 X 100-250

KCC 150 X 125-250 KCC 125 X 100-315 KCC 125 X 100–350 KCC 125 X 100-315

KCC 125 X 100–400 KCC 150 X 125-250 KCC 150 X 125-315 KCC 150 X 125–350

KCC 150 X 125–400 KCC 150 X 125-450 KCC 200 X 125-315 KCC 200 X 150–400

KCC 200 X 150-315 KCC 125 X 100–250 KCC 200 X 150–450 KCC 200 X 150–500

KCC 250 X 200–450 KCC 250 X 200–500

Main applications:

UUMXT-35 UUMXT-45

UUMXT-55 UUMXT-65

Note: Since pumps serve a variety of purposes, the sealing materials (friction pairs) also differ. To ensure reliable sealing performance,
The manufacturer recommends the following:
1. Clean water (without particulate matter)—Use an alloy for the dynamic sealing pair and graphite for the static sealing pair.
2. Highly corrosive environments (conditions involving particulate matter) – For the dynamic seal pair, select silicon carbide; for the stationary seal pair, also choose 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 millimeters, with axial runout not exceeding 0.1 millimeters;
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 turn 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.