RPW-115 –Robust Mechanical Seal for Long-Lasting Pump Performance
RPW-115 –Robust Mechanical Seal for Long-Lasting Pump Performance
Overview
HydroMax Seal RPW-115 | Multi-Spring Balanced Single Cartridge Seal with Flush Port
The RPW-115 is a multi-spring, hydraulically balanced single-cartridge mechanical seal designed for parallel shaft applications. Featuring shrink-fitted seal faces and O-ring secondary seals, this rotary wet pusher seal is equipped with a flush port for fluid management and system cleanliness.
Engineered for ease of installation and consistent performance, the RPW-115 is factory assembled and tested for reliability in a wide range of industrial applications.
Product Description
Design Features
- Hydraulically balanced single-cartridge design
- Shrink-fitted seal faces with O-ring secondary sealing
- Flush port connection for system cleanliness and cooling
- Multi-spring configuration ensures even axial loading
- Set screw driven for secure shaft engagement
- Delivered factory assembled and tested for ready installation
Technical Specifications
| Seal Shaft Sizes | 20mm – 100mm (1.000″ – 4.000″) |
| Inboard Seal Face Combinations | Car/TC Car/SiC TC/TC TC/SiC SiC/SiC |
| Gasket | GFT |
| Elastomers | Viton ERP Aflas Kalrez |
| Shaft Speeds | Up to 20 m/s |
| Pressures | Up to 232 psig – Shaft Size Specific |
| Temperatures | Up to 230°F |
WARNING:
Seal performance characteristics are based on individual conditions of speed, pressure, and temperature. The upper limit of these variables should not be applied in combination.
Typical Applications & Industry Use Cases
The RPW-115 Single Cartridge Mechanical Seal is a multi-spring, hydraulically balanced cartridge seal designed for parallel-shaft rotating equipment that demands reliable, durable sealing performance. It features a flush port to support fluid circulation over the seal faces, O-ring secondary seals for effective dynamic sealing, and a set-screw drive for secure engagement. The seal is supplied fully assembled and factory tested for ready-to-install convenience.
Industries Served
Water and wastewater treatment
Chemical and petrochemical processing
Industrial and utility pumping systems
Food and beverage fluid handling
Pharmaceutical and process manufacturing
General industrial and OEM equipment applications
Equipment & Use-Case Scenarios
- Single-seal arrangements on parallel-shaft centrifugal and process pumps
- Services where balanced face loading improves stability and reduces wear
- Systems that benefit from flush fluid circulation for cooling and contaminant control
- OEM and routine maintenance applications requiring a ready-to-install cartridge seal
Why It Fits These Applications
- Multi-spring, hydraulically balanced design: Promotes uniform face loading across a range of operating conditions, enhancing reliability and service life
- Flush port: Supports circulation of clean fluid over seal faces to improve lubrication, cooling, and contamination control
- Set-screw drive: Provides secure mechanical engagement and reliable torque transfer
- O-ring secondary seals: Accommodate minor shaft irregularities and provide dependable dynamic sealing
- Factory-assembled cartridge: Simplifies installation, reduces assembly errors, and shortens maintenance time
Installation Guidelines
Pre-Installation Preparation
Clean and thoroughly inspect the pump shaft, seal chamber bore, and gland surfaces. Remove corrosion, debris, and surface defects to ensure proper sealing-surface contact and alignment.
Cartridge Installation
Insert the RPW-115 cartridge seal into the seal housing. Confirm that the flush port is correctly oriented for your piping and support-fluid plan. Tighten set screws evenly to secure the cartridge without distortion.
Alignment & Fit
Ensure the cartridge seal is fully seated against the gland face with correct axial alignment. Proper seating and secure engagement help maintain even face contact and reduce the risk of leakage.
Startup Procedure
Prior to full-speed operation, circulate flush fluid, then gradually bring the pump up to operating speed and pressure. Monitor the seal area for leakage, vibration, or abnormal temperature before placing the equipment into full duty.
Maintenance & Inspection Best Practices
- Routine Visual Checks: Regularly inspect the seal area for leakage, unusual temperature changes, or vibration
- Seal Face Condition: During scheduled maintenance, check faces for wear, scoring, or contamination
- Secondary Seal Care: Inspect and replace O-rings if they show hardening, cracking, or deformation
- Operating Logs: Track fluid pressures, temperatures, and shaft speeds to help identify trends and support predictive maintenance
- Spare Parts Planning: Keep replacement springs, secondary seals, and seal faces available to minimise downtime
Service & Support Options
- Application Review: Confirm that selected materials and configuration are appropriate for the specific fluid chemistry and operating conditions
- Installation Assistance: Technical support can help ensure correct orientation and secure engagement for optimal first-run performance
- Preventive Maintenance Scheduling: Establish inspection and parts replacement intervals based on operational history and duty cycle
- Seal Upgrade Evaluation: If service demands increase (higher pressures, temperatures, or aggressive chemicals), consider alternate designs or enhanced materials to maintain 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
