Rinku Engineers (India) is a leading Bellow Mechanical Seal Manufacturer in Ahmedabad, specializing in high-precision sealing solutions for industrial pumps and rotating equipment. Our Bellow Seals RE 31 & RE 41 Series are engineered to deliver reliable, leak-proof performance while minimizing maintenance and shaft wear in demanding industrial environments.
These bellow mechanical seals are designed to eliminate the need for dynamic O-rings, making them ideal for applications involving fluctuating temperatures, corrosive fluids, and continuous-duty operation.
RANGE OF OPERATION – RE 31 SERIES
| Temperature | Cryogenics to 260°C |
| Pressure | Vacuum to 200 PSI |
| Speed | Up to 1500 RPM |
| Shaft Size | 1/2″ to 4″ |
The RE 31 Series is the most commonly used bellow mechanical seal range for various rotating equipment due to its simple and proven construction. It employs a rubber bellow as a secondary sealing element, eliminating shaft fretting and ensuring excellent flexibility. These seals also offer the advantage of a single-coil spring and are available in multiple face material combinations to suit a wide range of industrial applications.
MAIN FEATURES – RE 31 SERIES
The single spring design is non-clogging and self-cleaning, making it ideal for continuous operation. The rubber bellow and spring together compensate for shaft run-out and axial movement. Its simple and compact construction allows easy handling and installation while providing long service life with practically zero or minimal maintenance.
RANGE OF OPERATION – RE 41 SERIES
| Temperature | Cryogenics to 120°C |
| Pressure | Vacuum to 75 PSI |
| Speed | Up to 4000 RPM |
| Shaft Size | 3/4″ to 3″ |
The RE 41 Series is the most robust and widely acclaimed bellow seal range for handling acids and aggressive chemical fluids. These seals are manufactured using chemically inert materials such as PTFE, GFT, Ceramic, and Hastelloy C, which come in contact with corrosive media during operation. As a result, the seals perform with excellence under oxidizing and reducing environments.
MAIN FEATURES – RE 41 SERIES
The hydraulically balanced flexible bellow design effectively accommodates shaft run-out and axial movement. These seals feature a compact design for easy installation and negligible maintenance. The multi-spring arrangement combined with the bellow provides equal pressure distribution over the seal face, ensuring perfect sealing even at high rotational speeds.
APPLICATIONS
- Chemical and Process Pumps
- Acid Transfer and Corrosive Fluid Pumps
- Industrial Rotating Equipment
- Pharmaceutical and Food Processing Units
- Paper, Textile, and Refinery Applications
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