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Type 604HTC

High-temperature, Corrosion-resistant Stationary Bellows Assembly Utilizing "HTC" Technology

The Type 604HTC high-temperature, corrosion-resistant welded metal bellows seal is a unique advanced technology for reliably sealing fluids in harsh, high-temperature, corrosive environments and, at the same time, provides superior face stability at elevated temperatures. This all-Inconel seal is ideally suited for applications that contain organic acids (naphthenic acid), and sulfur compounds that attack most other alloys at high temperature. The Type 604HTC is a stationary bellows assembly that is capable of handling high shaft speed applications and high shaft-to-seal chamber misalignment. The 604HTC is utilized in our API 682/ISO 21049 Type 1604HTC and Type 3604HTC cartridge seals.


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type604silo lg

Features

  • Utilizes HTC high-temperature, corrosion-resistant edge-welded metal bellows technology to reliably seal fluids in harsh, high-temperature, corrosive environments.
  • The Type HTC provides superior face stability at elevated temperatures.
  • API 682/ISO 21049 qualified.
  • Stationary bellows assembly — capable of handling high shaft speed applications and high shaft-to-seal chamber misalignment.
  • All-Inconel metallurgy — meets NACE MR0175/MR0103.
  • ID and OD pressure capability withstands reverse pressurization.
  • Thermally compliant primary ring adapter.
  • Pressure compensating primary ring.
  • John Crane edge-welded metal bellows with optimum 45-degree tilt angle.
  • John Crane Sealide® silicon carbide composite.
  • Available in single and dual cartridge arrangements.
  • DOUBLE-PLY version available for higher-pressure applications.
  • Hard faces available for abrasive applications.

Parameters

Temperature Limits

-100°F to 800°F/-75°C to 425°C

Pressure Limits

Dynamic: Vacuum to 300 psi(g)/20 bar(g)

Static: 450 psi(g)/31 bar(g)

Speed Limits

10000fpm/50m/s

Recommended Applications

  • Process Pumps

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