Rotating Component Elements
The rotating assembly typically includes a seal head and a spring or another loading mechanism. Correct sizing, installation, and face loading help maintain reliable sealing performance under operating conditions.
Mechanical Seal Types
In some cases, we are not able to directly cross reference a seal in our cross reference to pump manufacturers. In order to assure you receive the correct seal for your pump, it is very important that you supply us with accurate information. Follow these steps to help identify the seal assembly you have.
Type 21C
Type 35A
Type 60A
Type 65A
Type 66B
Type 20D
Type 10E
Type 90M
Type 10S
Type 11S
Type 12S
Type 13S
Type 14S
Type 15S
Type A1
Type B2
Type C3
Type E2
Type T1
Mastering Pump Reliability with EPM Mechanical Seals
Your engineering resource for identifying, measuring, cross-referencing, and sourcing high-performance mechanical seal solutions.
Need help identifying the correct mechanical seal for your industrial pump?
Contact EPM ExpertsThe Engineering Anatomy of Industrial Mechanical Seals
Mechanical seals are critical components designed to control fluid leakage from pumps and rotating equipment. Selecting a compatible replacement from the EPM Mechanical Seals catalog can help improve equipment uptime and support reliable operation in demanding industrial applications.
Stationary Seat Configurations
The stationary seat mates with the rotating seal face. Identifying the seat mounting style, dimensions, and elastomer configuration is important when choosing a compatible replacement from the EPM mechanical seals catalog.
How to Accurately Measure a Mechanical Seal
Accurate measurements help identify a suitable replacement seal. Follow this workflow alongside the pump and seal manufacturer's specifications.
- Separate the components: Identify the rotating head, spring assembly, and stationary seat.
- Measure the seal head ID: Record the inside diameter of the mounting bore to help establish the nominal shaft or sleeve size.
- Record spring dimensions: Measure the spring's free length and other relevant dimensions. Spring length alone does not determine the correct operating load.
- Measure the seat OD: Record the stationary seat's outside diameter and mounting configuration.
- Measure seat thickness: Record the overall seat thickness and other installation-critical dimensions.
Important: Measurements alone may not establish interchangeability. Shaft size, working length, face materials, elastomer compatibility, pressure, temperature, speed, and seal arrangement may also matter.
If the components are worn or difficult to identify, contact EPM for technical assistance and ask about submitting the assembly for evaluation
