LC40/250T, LC40/350T, LC40/400T, LC50/350N1T, LC50/400T, LC50/460T, LC65/350T, LC65/400T, LC80/400T, LC100/320T, LC100/350T, LC125/405T, LC125/350T, LC150/300T, LC150/350T, LC200/300T, LC200/350T, LC200/410T, LC250/300T, LC250/350T, LC250/430T – Mechanical Seals

Xiangyang 525 LC Slurry Pump Using GPA Modular Mechanical Seal

Structural features:

Single-end cartridge mechanical seal. Easy to install and simple to use. Balanced design, reversible 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 applications such as absorption tower slurry circulation pumps, gypsum slurry pumps, limestone slurry pumps, and gypsum discharge pumps. It can also be employed in various slurry pumps to handle a wide range of media containing particulate matter.

Common pump numbers are as follows:

LC25/250T LC25/350T LC32/200T LC32/250T LC32/250T LC32/350T

LC50/210T LC80/210T LC32/200T LC40/250T LC40/250T LC40/350T

LC40/400T LC40/450T LC50/350N1T LC50/350N2T LC50/400T LC50/460T

LC65/310T LC65/315T LC65/400T LC65/350T LC80/210T LC80/210T

LC80/400T LC80/450T LC100/300T LC100/320T LC100/350T LC100/420T

LC150/300T, LC150/350T, LC200/300T LC200/350T LC150/400T LC200/410T

LC250/300T, LC250/350T, LC250/430T LC200/410T LC150/400T LC200/410T

Sealed model:

LC180-GPA40-S2-S/SV7-62 LC250-GPA50-S2-S/SV7-62

LC315-GPA64-S2-S/SV7-62 LC355-GPA70-S2-S/SV7-62

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 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.