Single Spring – RPW-022
Single Spring – RPW-022
Overview
The RPW-022 is a SINGLE COIL SPRING SEAL WITH O-RING – UN-DIRECTIONAL.
Internal Wet Seal with Shrink-Fitted Rotary Head for Parallel Shafts with O-Ring Elastomer. A Single Spring design with Set Screw Drive (Standard w/length).
Product Description
Technical Specifications
| Seal Shaft Sizes | 1.000″ – 4.000″ (12mm – 100mm) |
| Inboard Seal Face Combination | Car/TC and Car/SiC |
| Elastomers | Viton, ERP |
| Shaft Speeds | Up to 10 m/s |
| Pressures | Up to 8 barg (116 psig) – Shaft Size Specific |
Typical Applications & Industry Use Cases
The RPW-022 is a single-spring, internally mounted mechanical seal designed for general-purpose fluid-handling applications. Its simple, spring-loaded design provides reliable sealing performance for clean to moderately clean process fluids, moderate pressures, and standard pump operating speeds. This seal is a cost-effective, easy-to-install solution well-suited for common industrial applications where heavy-duty sealing is not required.
Industries Served
Water and utility sectors
clean water pumping, service water circulation, booster, and utility pumps.
General industrial fluid transfer
circulation loops, drainage systems,s and process utilities handling non-aggressive liquids.
Light chemical processing
fluids compatible with elastomer and face materials, under moderate conditions.
OEM and retrofit applications
for equipment requiring a simple replacement seal with minimal disassembly.
HVAC and building services
chilled and hot water circulation, condenser, and cooling loops.
Equipment & Use-Case Scenarios
- Standard centrifugal, horizontal, and end-suction pumps operating with clean or lightly contaminated liquids.
- Systems where shaft speeds and pressures are moderate and where reliability and simplicity are key.
- Pumps with restricted gland or stuffing-box space that benefit from compact single-spring designs.
- Scenarios prioritising ease of maintenance and straightforward seal change-out without complex disassembly.
Why It Fits These Applications
- The single-spring mechanism delivers consistent face loading with minimal components, reducing the risk of installation errors and simplifying maintenance.
- Its compact internal design suits pumps with limited seal chamber space or constrained gland envelopes.
- The seal performs reliably in typical clean-to-moderately clean fluid services where abrasive solids and aggressive media are absent.
- Cost-effective performance and straightforward installation make the RPW-022 a practical choice for routine industrial sealing needs.
Installation Guidelines
Prepare the shaft and seal chamber
Ensure the pump shaft, seal chamber bore, and gland face are thoroughly cleaned, smooth, and free of corrosion, scoring, or debris before installation. Proper surface condition is essential for sealing reliability.
Prepare the shaft and seal chamber
Ensure the pump shaft, seal chamber bore, and gland face are thoroughly cleaned, smooth, and free of corrosion, scoring, or debris before installation. Proper surface condition is essential for sealing reliability.
Secure and align
Engage any set-screw or drive feature as specified, and tighten the gland/clamp evenly to avoid misalignment or face binding.
Initial start-up check
Start the pump under controlled conditions. Observe for leaks, vibration, unusual noise, or temperature rise around the seal area before proceeding to full duty.
Maintenance & Inspection Best Practices
- Scheduled inspections: During planned shutdowns, inspect seal faces for signs of wear, scoring, cheekmarks,s or pitting. Check elastomer components (O-rings, gaskets) for signs of hardening, swelling,g or chemical degradation.
- Monitor operating behavior: Track pump performance for signs of seal aging—increased leakage, temperature rise, or vibration may indicate the need for inspection or replacement.
- Maintain fluid cleanliness: While RPW-022 is suited to clean or moderately clean fluids, ensure that particulate contamination is limited through appropriate filtration where practical.
- Keep operational logs: Maintain records of fluid type, pressure, temperature, run hours, and start/stop cycles to support predictive maintenance and trend analysis.
- Proactively replace worn parts: Renew worn sealing faces or elastomer components before complete failure to avoid unplanned downtime and protect pump internals.
Service & Support Options
- Specification review: Verify that fluid chemistry, operating pressure, temperature, and shaft characteristics are compatible with RPW-022 to optimize performance and service life.
- Spare parts availability: Maintain a stock of replacement seal faces, elastomer kits, and drive components to minimize maintenance turnaround time.
- Installation guidance: Assistance with correct seal alignment, proper seating, and secure mounting improves initial performance and life expectancy.
- Preventive maintenance planning: Regular inspection intervals, condition tracking, and proactive part replacement help extend service life and reduce operational disruptions.
- Upgrade recommendations: If operating conditions intensify (higher pressure, abrasive or aggressive fluids, temperature excursions), consider higher-duty seal types, such as multi-spring, cartridge, bellows, or dual-seal designs, for enhanced reliability.
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Contact HydroMax Seal
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E-Mail: sales@hydromaxseal.com
Address: 18511 Beaumont Hwy Building D
Houston, TX
77049
