Multi-Spring Seal RPW-012 – High-Performance Mechanical Cartridge
Multi-Spring Seal RPW-012 – High-Performance Mechanical Cartridge
Overview
The RPW-012 is a MULTI SPRING BALANCED SEAL WITH O-RING.
Rotary Wet Pusher Seal, Shrink Fit faces, Parallel shaft with dynamic O-ring, Multi-Spring & Set Screw Driven (Standard w/length).
The seal has a number of design features and can be used with a range of stationary seats as required.
Product Description
Technical Specifications
| Seal Shaft Sizes | 20mm – 100mm (1.000″ – 4.000″) |
| Inboard Seal Face Combination | Car, TC, SiC |
| Elastomers | Viton, ERP, Aflas, Kalrez |
| Shaft Speeds | Up to 20 m/s |
| Pressures | Up to 10 barg (150 psig) – Shaft Size Specific |
Typical Applications & Industry Use Cases
The RPW-012 is a compact multi-spring mechanical seal designed for pumps handling clean to moderately contaminated fluids. Its balanced multi-spring configuration provides uniform face loading, improving sealing stability under fluctuating pressures, temperatures, and shaft speeds. The design also incorporates a sturdy drive mechanism and replaceable secondary sealing elements, making it well-suited for general industrial services.
Industries Served
Water supply, utility pumping, and building services
Light chemical processing where elastomer compatibility is suitable
Food and beverage processing (depending on material selection)
General manufacturing and industrial fluid transfer systems
Pulp, paper, and light wastewater processes without abrasive solids
Equipment & Use-Case Scenarios
- Centrifugal pumps, end-suction pumps, and small to mid-size industrial pumps
- Applications with shaft sizes typically in the small/medium range that require a compact seal envelope.
- Services operating within moderate pressure and speed ranges where balanced multi-spring seals offer enhanced reliability
- Pumps experiencing varying operating conditions — intermittent duty, fluctuating loads, or thermal cycling
- OEM systems require a standardized seal format that is easy to replace and service
Why It Fits These Applications
- The multi-spring design ensures even pressure distribution across the seal faces, reducing localized wear and extending service life.
- Compact construction allows installation in pumps with limited stuffing box or seal chamber space.
- The balanced seal face design helps maintain stable sealing even under moderate pressure variations.
- Secondary sealing elements can be configured for a wide range of fluids, improving versatility.
- Uniform axial loading and low sensitivity to minor shaft movement make it ideal for general industrial duties.
Installation Guidelines
Inspect the shaft, seal chamber, and gland surfaces thoroughly before installation; remove any corrosion, scoring, or residue.
Lubricate elastomer components lightly using a fluid compatible with the seal materials to ease assembly.
Position the seal squarely on the shaft, ensuring correct orientation of both rotary and stationary faces.
Tighten hardware evenly to avoid distortion or misalignment of the sealing faces.
Conduct a slow, controlled startup to verify sealing integrity, monitor vibration, and confirm stable temperature rise.
Maintenance & Inspection Best Practices
- Inspect seal faces regularly for wear patterns, scoring, or thermal marks; replace when wear becomes excessive.
- Check elastomer O-rings or secondary seals for swelling, hardening, or chemical breakdown.
- Monitor pump vibration and shaft alignment, as excessive misalignment accelerates spring and seal-face wear.
- Maintain a record of operating conditions — pressure, temperature, fluid characteristics — to predict service intervals.
- Proactively replace multi-springs or secondary components when operating under heavy cycling or temperature variation.
Service & Support Options
- Material selection assistance to match seal faces and elastomers to process-fluid characteristics.
- Availability of spare kits, including springs, O-rings, stationary seats, and rotary heads for rapid turnaround.
- Installation and commissioning support to ensure proper alignment and leak-free startup.
- Preventive maintenance plans to reduce unplanned downtime and extend seal service life.
- Recommendations for upgrading to a heavier-duty or chemically resistant seal design if process conditions evolve.
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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
