High-Efficiency RPW-112 Cartridge Seal for Grundfos Pumps
High-Efficiency RPW-112 Cartridge Seal for Grundfos Pumps
Overview
HydroMax Seal RPW-112 | Single Cartridge Mechanical Seal for Grundfos Pumps
The RPW-112 is a precision-engineered range of single-cartridge seals, developed specifically for Grundfos pump models with shaft sizes of 0.47″, 0.63″, and 0.87″. This Rotary Wet Pusher (RPW) seal features shrink-fitted faces, O-ring secondary seals, and is multi-spring and hydraulically balanced, ensuring optimal performance under varied operating conditions.
With no environmental ports, this is a plug-and-play solution designed for straightforward installation in Grundfos equipment. Each seal is supplied factory assembled and fully tested.
Product Description
Design Features
- Designed for direct fit with Grundfos pumps
- Multi-spring and hydraulically balanced for stable face loading
- Shrink-fitted faces and O-ring sealing
- No external flush or quench connections required
- Supplied fully assembled and tested
Technical Specifications
| Seal Shaft Sizes | 0.47″, 0.63″, 0.87″ |
| Inboard Seal Face Combination | Car/TC, Car/SiC |
| Gasket | GFT |
| Elastomers | Viton, Alfas, EPR |
| Shaft Speeds | Up to 20 m/s |
| Pressures | Up to 16 barg (232 psig) — shaft size specific |
| Temperatures | Up to 110°C (230°F) |
Seal Naming Designation
- RPW-112-GP012 – 0.47″ Shaft with Screwed Housing
- RPW-112-GP016 – 0.63″ Shaft with Screwed Housing
- RPW-112-GP022 – 0.87″ Shaft with Clamped Housing
Warning
The seal performance values listed are typical for each variable in isolation. Do not combine upper limits of speed, pressure, and temperature simultaneously. Always consult HydroMax for application-specific guidance.
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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







