OVERVIEW

Official designation: Haag + Zeissler 7900 (7900 Series, High-Speed Rotary Joint)

Role/Application: High-speed single-passage rotary joint featuring a small diameter and ceramic seal, designed for stable, leak-free transfer of water and other compatible media in rotating equipment and high-speed cooling systems.

KEY SPECS SUMMARY

Power: N/A

Interfaces / Ports: Single flow; ISO 228 thread; optional syphon pipe

Indicators: N/A

Operating Temp: Maximum 90 degrees C for water medium

Platform / Compatibility: Brass housing; stainless steel rotor; ceramic seal

Limit: 10 bar maximum pressure; 3500 rpm maximum speed

Lifecycle: Refer to the latest manufacturer manual.

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What are the material components of the sealing pair and housing for the 7900 rotary union?

A: The unit features a brass housing, stainless steel rotor, and a small diameter ceramic seal.

Wiring & Installation:

Q: What connection type is utilized for the stationary pipe connection on the high-speed 7900 rotary union?

A: The rotary union utilizes an ISO 228 threaded connection for pipe installation.

Troubleshooting & Compatibility:

Q: Does the 7900 series support dual flow or multi-passage applications for combined supply and drainage?

A: The 7900 series is available for single flow or combined flow using an optional syphon pipe.

Replacement & Upgrades:

Q: Is the 7900 rotary union designed with a cartridge system to simplify sealing component replacement?

A: The 7900 series utilizes the CD-Cartridge-Design for streamlined sealing maintenance.