Double Mechanical Pump Shaft Seals Chemical Industry Balanced Seal For Pumps
Huhnseal Type ED Balanced Double Cartridge Mechanical Seal for Pumps
Cartridge Mechanical Seal
ED
balanced double cartridge seal
Huhnseal ED is a double balanced cartridge seal maintaining sealing performance even during sudden pressure drops on the product side and/or the secondary side. The design of the seal is robust and rigid but at the same time flexible, with excellent radial and axial movement capabilities. The springs are located outside both the product and the flush minimizing risk for clogging.
Features and Benefits
- The seal can move ± 2,0 mm independent of the compression of the springs. The seal follows the movement of the shaft without influencing the compression of the springs. This feature is essential when sealing equipment with flexible bearing units.
- Smooth surfaces without cavities or closed spaces make the seal suitable for food applications. If required, the gasket may be replaced with O-rings according to EHEDG in order to achieve a hygienic designed seal suitable for CIP.
- Allow for installation of a double seal in applications with very limited space.
- Excellent axial movement The seal can move ± 2,0 mm independent of the compression of the springs. The seal follows the movement of the shaft without influencing the compression of the springs.
- The rotating sealing face on the product side has the new “H4-design”. This means that the seal face is O-ring mounted and the outer diameter of the seal face is the same as of the holder.
- Through a new design the seal is able to compensate for angular deviation without generating stresses over the seal faces, which may influence sealing performance. This feature minimizes the effects of excessive shaft bending during operation against clos.
Performance Capabilities
| Temperature | -20℃ to 200℃, dependent on the elastomer |
|---|---|
| Pressure | Up to 2.5MPA |
| Speed | Up to 15 m/s |
| End play/axial float allowance | ±0.1mm |
| Brand | BESTSEAL |
| Face | Carbon, SiC, TC |
| Seat | Ceramic, SiC, TC |
| Elastomer | NBR, EPDM, FKM etc. |
| Spring | SS304, SS316 |
| Metal parts | SS304, SS316 |
| Packing | Individual packing ,1 pc in 1 small box is available as well |
| Application Areas |
Sanitary Mining & Slurry Pulp & Paper Chemical industry Pharmaceutical industry W&WW and Dewatering |
BESTSEAL — Your Reliable Partner for Mechanical Seals
| BESTSEAL Advantage: | |
| 15 years | Focused in mechanical seal manufacturing |
| 3 hours | Quotation response only takes 3 hours |
| 1 day | Provide production assembly drawings |
| 1 piece | MOQ, One piece can also be produced |
| 15-20 working days | The production cycle only takes 15-20 working days |
| real-time | Real time synchronization of production progress |
BESTSEAL Cartridge Mechanical Seal
Your Fast-Track Alternative to Huhnseal Type ED
Custom Cartridge Mechanical Seals — From Drawing to Delivery in 15–20 Working Days
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.

