Grundfos Cartridge Seal RPW-112 – Durable Industrial Mechanical Seal
Grundfos Cartridge Seal RPW-112 – Durable Industrial Mechanical Seal
Overview
HydroMax Seal RPW-112 | Single Cartridge Seal Range for Grundfos Pumps
The RPW-112 is a dedicated range of single-cartridge mechanical seals designed to fit Grundfos pumps with shaft sizes of 12 mm, 16 mm, and 22 mm. This rotary wet pusher (RPW) seal features shrink-fitted seal faces, O-ring secondary seals, and a compact cartridge design with no environmental port connections.
Hydraulically balanced and multi-spring loaded, the RPW-112 ensures even seal face loading and consistent performance. Each unit is factory-assembled and tested for easy drop-in installation and operational reliability.
Product Description
Design Features
- Specifically designed to fit Grundfos pumps (12mm, 16mm, 22mm shaft sizes)
- Shrink-fitted seal faces for dimensional stability
- O-ring secondary sealing
- Hydraulically balanced and multi-spring for optimal loading
- No flush, quench, or drain ports – minimalistic, compact design
- Factory assembled and pressure-tested
Technical Specifications
| Seal Shaft Sizes | 12mm, 16mm, 22mm |
| Inboard Seal Face Combinations | 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 – 12mm shaft with screwed housing connection
- RPW-112-GP016 – 16mm shaft with screwed housing connection
- RPW-112-GP022 – 22mm shaft with clamped housing connection
WARNING:
Seal performance ratings are based on individual parameters. Do not apply maximum speed, pressure, and temperature limits in combination.
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E-Mail: sales@hydromaxseal.com
Address: 18511 Beaumont Hwy Building D
Houston, TX
77049
