Key features
- Wave Spring, Set-Screw Driven, 'O'-Ring Mounted Design
The Vulcan Seals Type 1633 mechanical seal offers superior performance, featuring a wave spring, set-screw drive, and 'O'-Ring mounted configuration for enhanced reliability. - Direct Replacement for John Crane® Type R33
This seal is specifically engineered as a direct replacement for the John Crane® Type R33*, offering compatibility and ease of installation. - Sinusoidal Wave Spring
The Vulcan Seals Type 1633 incorporates a sinusoidal wave spring for improved resilience. - Positively Energized Rotary 'O'-Ring
A rotary 'O'-Ring that stays positively energized ensures a secure sealing contact with the pump shaft, providing increased durability in comparison to competitive designs.
Product specifications
- Rotary seal: Utilizes a sinusoidal wave spring, set-screw driven, 'O'-Ring mounted for robust operation.
- Stationary seal: Vulcan Seals Type 24 DINL, featuring an anti-rotation pin slot for improved stability.
- Compatible replacement: Designed to replace the John Crane® Type R33* with the 248X stationary seal.
*Previously known as ROPAC® NORMOPAC Type U33.
Design advantages
- One-piece sinusoidal wave spring seal
Unlike spot-welded designs, the one-piece sinusoidal wave spring offers higher resilience, ensuring longer-lasting performance. - Compact stationary seal
The Vulcan Seals Type 24 DINL stationary seal features an anti-rotation pin slot and a compact working length, allowing installation into standard metric housings while reducing the overall operating length. - Optimized rotary drive plate and seal head
The interface between the rotary drive plate and seal head is engineered to energize the 'O'-Ring against the pump shaft, providing stronger sealing contact compared to other designs. - Alternative models available
For those needing a stepped and balanced rotary seal, the Vulcan Seals Type 1634 is available to replace the John Crane® Type 34.
Committed to quality: ISO 9001:2015 certified
At Vulcan Seals, we adhere to stringent quality control standards. Our seals are designed, manufactured, and assembled in compliance with ISO 9001 certification, ensuring consistent quality and performance in every product.
The widest range of OEM replacement mechanical seals
Vulcan Seals offers the largest selection of OEM replacement mechanical seals on the market. By focusing on enhanced design, cutting-edge technology, and superior material compatibility, we strive to eliminate common faults seen in original seals.
Contact us for more information
As we continually improve the performance and quality of our mechanical seal range to meet evolving industry demands, we invite you to reach out for more details.
Use the form on this page or email us directly at contact@vulcanseals.com to discuss your requirements.
Contact us via the form on this page or email us directly at: contact@vulcanseals.com
® All product names and brands used are for identification and reference purposes only, and do not imply endorsement nor affiliation.
