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

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