Mechanical Seals YCZ50-250C, YCZ65-250B, YCZ80-250A

Structural features:

1. Single-face, single-spring design with strong anti-clogging capability. When using, be sure to pay attention to the spring's 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: ≤1.0 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 stator cooling pumps and rotor cooling pumps at various power plants.

Common models:

YCZ32-160 YCZ32-200 YCZ40-160 YCZ40-200, YCZ40-250, YCZ40-315

YCZ40-400, YCZ40-315, YCZ50-160 YCZ50-200, YCZ50-250, YCZ50-315

YCZ50-400 YCZ50-315 YCZ65-160 YCZ65-200, YCZ65-250, YCZ65-315

YCZ65-400, YCZ65-315, YCZ80-160 YCZ80-200, YCZ80-250, YCZ80-315

YCZ80-400, YCZ80-315, YCZ100-200 YCZ100-250, YCZ100-315, YCZ100-400

YCZ125-250, YCZ125-315, YCZ125-400 YCZ125-315, YCZ150-250, YCZ150-315

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 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 areas 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 knocking 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, ensure that the screws are tightened evenly to maintain perpendicularity between the stationary ring face and 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.