Grundfos Cartridge Seals: RPW-112
Grundfos Cartridge Seals: RPW-112
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.
