JKCF40/250, JKCF40/350, JKCF50/350, JKCF65/310, JKCF80/450, JKCF100/300, JKCF100/350 Mechanical Seals

Structural features:

Single-end (double-end) cartridge-type mechanical seal. Easy to install and simple to use. Balanced design with optional rotation direction.

Internal working length is short. The stationary ring features multi-spring external compensation that does not come into contact with the medium.

Applicable medium:

A medium with a high content of impurities such as gypsum and lime slurry.

Work parameters:

Fixed substance content: ≤30%

Warm Temperature: ≤280°C

Press Force: ≤2.5 MPa

Axis Diameter: ≤200mm

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

Main applications:

This type of mechanical seal is primarily used in flue gas desulfurization systems for coal-fired power plants, and is suitable for absorption tower slurry circulation pumps, gypsum slurry pumps, limestone slurry pumps, and gypsum discharge pumps.

Common pump numbers are as follows:

JK CF25/250 JK CF25/350 JK CF32/200

JK CF32/250 JK CF32/250 JK CF32/350

JK CF50/210 JK CF80/210 JK CF32/200

JK CF40/250 JK CF40/250 JK CF40/350

JK C F 40 out of 400 JK CF40/450 JK CF50/350N1

JK CF50/350N2 JK CF50/400 JK CF50/460

JK CF65/310 JK CF65/315 JK CF65/400

JK CF65/350 JK CF80/400 JK CF80/450

JK CF100/300 JK CF100/320 JK CF100/350

JK CF100/420 JKCF125/300 JKCF125/350

JKCF125/405 JKCF250/300 JKCF150/310

JKCF150/350A JK CF150/300 JK CF150/350

JK CF200/300 JK CF100/500 JK CF150/400

JKC F200/410 JK CF250/430 JKC F25 0/ 350

JK C300/500 JK C300/530 JK C300/450

JK C300/635 JK C300/550      JK C350/500

JKC350/450 JKC350/500 JK C350/560

JK C400/500 JK C350/680 JK C400/540

JK C400/540 JK C400/560 JK C450/550

JK C450/750 JK C450/635 JK C500/630

JK C550/700 JK C550/710 JK C550/750

JK C600/800 JK C600/825 JK C600/800

JK C700/898 JK C700/900 JK C800/1000

JK C900/1150 JK C900/1150 JK C1000/1300

JK C1000/1200 JK C1000/1250 JK C1000/1300

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 impact or hammering to prevent damaging the mechanical seal through friction, which could lead to sealing failure.
4. During installation, apply a thin 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.