Double Cartridge: RPW-516

HydroMax Seal RPW-516 | Flow Induced Double Cartridge Rotary Seal with Quench & Flush Ports

The RPW-516 is a multi-spring, hydraulically balanced, flow-induced double cartridge seal equipped with barrier fluid quench and drain ports, and O-ring secondary seals.

This Rotary Pusher Wet (RPW) Double Cartridge Seal features shrink-fitted seal faces and is designed for use with parallel rotating equipment shafts. The flow-induced design promotes enhanced circulation of barrier fluid, improving heat dissipation and seal longevity.

The cartridge is set screw driven and includes quench, drain, and flush port connections for compatibility with seal support systems. The seal is factory assembled and tested, ensuring reliable installation and performance.

Product Description

Design Features

  • Large 3/8″ NPT port connections
  • Cartridge seal design for easy installation with pre-set seal faces—eliminates risk of incorrect face load setting
  • Supplied with Quench, Drain, and Flush connections as standard
  • Available with a wide range of seal face materials to suit various applications
  • Flow-induced design enhances barrier fluid circulation beyond conventional thermosiphon flow

 

Technical Specifications

  • Seal Shaft Sizes:
    20mm – 150mm (1.000″ – 6.000″)
  • Inboard Seal Face Combination:
    Car/TC, Car/SiC, TC/TC, TC/SiC, SiC/SiC
  • Outboard Seal Face Combination:
    Car/TC, Car/SiC
  • Gasket:
    GFT
  • Elastomers:
    Viton, ERP, Aflas, Kalrez
  • Shaft Speeds:
    up to 20 m/s
  • Pressures:
    up to 20 barg (process fluid), 16 barg (232 psig) barrier fluid – Shaft Size Specific
  • Pipework & Fittings:
    Plan 52 and Plan 53
  • Temperatures:
    up to 180°C

WARNING:
The safe seal performance characteristics are typical values for each variable in isolation. The individual upper limit values of speed, pressure, and temperature should NOT be used in combination.

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