Rubber Bellows RBT-10 – Leak-Proof Industrial Pump & Equipment Seal
Rubber Bellows RBT-10 – Leak-Proof Industrial Pump & Equipment Seal
Overview
HydroMax Seal RBT-10 | Closed-Type Rubber Bellows Seal for Johnson Pumps
The RBT-10 is a closed-type rubber bellows component seal designed specifically for Johnson water pumps. It features a single parallel spring, friction-drive collar, and rubber bellows to ensure smooth torque transfer from the shaft to the seal faces. This internal wet seal is compact, reliable, and ideal for light-duty applications.
Supplied with a monolithic seal face and stationary seat as standard, the RBT-10 is a proven sealing solution for closed-coupled pump systems.
Product Description
Design Features
- Closed-coupled rubber bellows design for Johnson water pumps
- Friction-drive collar provides direct engagement with the shaft
- Monolithic seal face for enhanced sealing integrity
- Supplied with the stationary seat as standard
- Compact and easy-to-install component seal for light-duty services
Technical Specifications
| Seal Shaft Sizes | 12mm – 55mm |
| Inboard Seal Face Combinations | Car/SiC, Car/Cer, SiC/SiC |
| Bellows Material | EPDM |
| Shaft Speeds | up to 10 m/s |
| Pressures | up to 5 Barg (73 psig) – Shaft Size Specific |
The HydroMax Seal RBT-10 provides a durable, application-specific solution for Johnson pump users who require reliable sealing in water-based systems.
Typical Applications & Industry Use Cases
The RBT-10 Rubber Bellows Mechanical Seal is a simple, elastomeric bellows seal designed for internal wet services in parallel-shaft rotating equipment. The flexible rubber bellows provides spring loading and compensates for minor shaft movement and misalignment, while the seal faces prevent fluid leakage in general industrial applications. Its uncomplicated design and dynamic sealing capabilities make it a cost-effective and reliable choice for a wide range of standard services.
Industries Served
Water and wastewater treatment
HVAC and building services
Industrial process pumping
Agricultural and irrigation systems
General utility fluid handling
Light to moderate chemical fluid services
Equipment & Use-Case Scenarios
- Parallel-shaft centrifugal and process pumps requiring internal wet sealing
- Applications with clean to moderately contaminated liquids
- Low to moderate pressure and temperature fluid transfer
- Routine maintenance and replacement in standard industrial pump systems
Why It Fits These Applications
- Elastomeric bellows: Provides inherent spring action and compensates for minor shaft movement without traditional coil springs
- Internal wet configuration: Utilises process fluid for lubrication and cooling of seal faces
- Flexible design: Tolerates slight misalignment and movement during operation
- Simple and robust construction: Effective as an economical sealing solution in general industrial environments
- Cost-effective: A practical option for services not requiring elaborate support systems
Installation Guidelines
Pre-Installation Preparation
Clean and thoroughly inspect the pump shaft, seal chamber bore, and gland surfaces. Remove corrosion, debris, or surface defects that could affect sealing-surface contact or alignment.
Seal Installation
Slide the RBT-10 seal onto the shaft and into the seal chamber. Ensure the elastomeric bellows and seal faces are correctly aligned with the shaft and housing. Take care not to twist or compress the rubber bellows unevenly during installation.
Orientation Check
Verify that the seal is oriented correctly relative to shaft rotation and fluid flow direction, where applicable.
System Readiness
Confirm that the seal chamber is flooded with process fluid if required and that all components are securely seated before starting the equipment.
Maintenance & Inspection Best Practices
- Routine Visual Checks: Periodically inspect for signs of leakage, vibration, or irregular temperature near the seal area
- Bellows Condition: During scheduled maintenance, assess the elastomeric bellows for cracks, deformations, or deterioration
- Seal Face Inspection: Examine faces for wear, scoring, or deposit accumulation
- Operating Logs: Track pressure, temperature, and shaft speed to assist with predictive maintenance
- Spare Parts Inventory: Maintain replacement bellows seals and secondary components to minimise downtime
Service & Support Options
- Application Review: Confirm elastomer and face material compatibility with your fluid chemistry and operating conditions
- Installation Assistance: Guidance to help ensure correct orientation and secure seating
- Preventive Maintenance Scheduling: Establish inspection and replacement intervals based on duty cycles and operating history
- Seal Upgrade Evaluation: If service demands increase (higher pressures, temperatures, or abrasives), consider alternative designs or materials to enhance performance
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Contact HydroMax Seal
Contact HydroMax Seal today for innovative solutions, expert guidance, and over a century of engineering excellence. Your journey to mechanical sealing excellence starts with HydroMax Seal!
E-Mail: sales@hydromaxseal.com
Address: 18511 Beaumont Hwy Building D
Houston, TX
77049
