Mechanical Seal for Pumps and Rotating Equipment

This mechanical seal is designed for pumps and rotating equipment. It features a multi-spring design and is suitable for use in water, sewage, and oil circulating pumps.

John Crane 59U,59B,58U,58B Mechanical seal - Image 1

Technical Specifications

Overview

High-Performance Mechanical Seal

This mechanical seal is engineered for demanding industrial applications, offering reliable performance and minimal leakage. Featuring a multi-spring, single-seal design that is independent of the direction of rotation, it ensures consistent operation across various rotating equipment. The unit is built to comply with EN12756 (DIN24960) standards, making it a robust choice for water, sewage, and oil circulation pumps.

Technical Specifications

Model Variants

ModelPressure Type
59UUnbalanced
58UUnbalanced
59BBalanced
58BBalanced

Design Standards
EN12756DIN24960Single SealMulti-spring
Rotation Direction
Independent

Operating Limits

Operating Limits

1.6 MPa
Unbalanced Pressure
3 MPa
Balanced Pressure
20 m/s
Max Speed

Temperature Range
-50 to 220°C

Applications

Suitable Applications

  • Water Pumps
  • Sewage Pumps
  • Oil Circulating Pumps

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