MTB-24, MTB-32, MTB-43, MTB-53, MTB-60, MTB-65, MTB-70, MTB-80 Mechanical Seals

Structural features:

1. Single-ended design with rubber bellows compensation, offering strong anti-clogging performance. When in use, the spring direction doesn’t matter.

2. The auxiliary sealing rings are made of nitrile rubber, fluoro rubber, ethylene propylene rubber, and silicone rubber.

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

Applicable medium:

In clean water containing oil, water, acids, alkalis, salts, as well as in wastewater and oily effluents with suspended particles.

Work parameters:

Fixed substance content: ≤10%

Warm Temperature: ≤180°C

Press Force: ≤1.5 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 various types of water pumps, chemical pumps, sewage pumps, wastewater pumps, and sludge oil pumps.

Common models:

KCP50X32-125 KCP50X32-160 KCP50X32-200 KCP50X32-250

KCP65X40-125 KCP65X40-160 KCP65X40-200 KCP65X40-250

KCP65X40-250 KCP65X40-315 KCP65X50-125 KCP65X50-160

KCP65X50-200 KCP65X50-250 KCP65X50-250 KCP65X50-315

KCP80X50-125 KCP80X50-160 KCP80X50-200 KCP80X50-250

KCP80X50-250 KCP80X50-315 KCP80X65-125 KCP80X65-160

KCP80X65-200 KCP80X65-250 KCP80X65-250 KCP80X65-315

KCP100X65-160 KCP100X65-200 KCP100X65-250 KCP100X65-315

KCP100X80-125 KCP100X80-160 KCP100X80-200 KCP100X80-250

KCP100X80-250 KCP100X80-315 KCP125X100-200 KCP125X100-250

KCP150X125-250 KCP125X100-315 KCP125X100-350 KCP125X100-315

KCP125X100-400 KCP150X125-250 KCP150X125-315 KCP150X125-350

KCP150X125-400 KCP150X125-450 KCP200X125-315 KCP200X150-400

KCP200X150-315 KCP125X100-250 KCP200X150-450 KCP200X150-500

KCP250X200-450 KCP250X200-500

Common sealing models:

MTB-20 MTB-24 MTB-25 MTB-28

MTB-30 MTB-32 MTB-35 MTB-38

MTB-40 MTB-43 MTB-45 MTB-48

MTB-50 MTB-53 MTB-55 MTB-58

MTB-60 MTB-63 MTB-65 MTB-70

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)—Choose 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 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 or breakage, 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.