Product Name: Mechanical Seal Application Scope: Condensate Pumps Applicable Industries: Steelmaking, Paper Manufacturing, Chemical Industry, Power Generation, Cement Production, and More Applicable Workstation: Boiler Water Condensate Pumps

Keywords:

021-M43K/125-00 NLT500-570X4S Mechanical Seal

Product Description
parameter

- Commodity name: 021-M43K/125-00 NLT500-570X4S Mechanical Seal
- Commodity ID: CMDT-0092
Product Name: Mechanical Seal Application Scope: Condensate Pumps Applicable Industries: Steelmaking, Paper Manufacturing, Chemical Industry, Power Generation, Cement Production, and More Applicable Workstation: Boiler Water Condensate Pumps

Material parameters:

Main materials: 2Cr13, 304, 316L, or 2205, 2507

Sealing ring material: M106D, YG8, or SiC

Rubber materials: Fluororubber or perfluoroether rubber

Mechanical seal structural features:

Single-surface, modular, multi-spring, balanced design

Stationary type, externally mounted spring type, flange-mounted type

Applicable medium:

Hot water, boiler water, and high-temperature liquid media.

Work parameters:

Fixed matter content: ≤2%

Warm Temperature: ≤280°C

Press Force: ≤6 MPa

Axis Diameter: ≤200 mm

Main applications:

This seal is primarily used in condensate pumps at coal-fired power plants, handling condensate water and other liquids similar to condensate.

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 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.
Key words:
- 冷凝泵机械密封凝结水泵机械密封
- Operating parameters:
  - Specifications: 25mm to 200mm
  - Pressure: 0-6 MPa
  - Temperature: -20 to 280
  - Linear velocity: ≤15 m/min
  - Suitable medium: Condensate and other liquids similar to condensate.
- Product features:
  - Sealing surface: Graphite, cemented carbide, silicon carbide
  - Auxiliary seal: Nitrile, ethylene propylene, fluoroelastomer, silicone rubber, and more
  - Metal components: 304, 316L, 2205, 2507, 1.4529
  - Structural features: Modular mechanical seals offer convenient installation and simple operation; they provide balanced performance and can rotate in either direction.