OVERVIEW

Official designation: Haag + Zeissler 9001 RL-ND (9001 Series, Single-Passage Rotary Joint)

Role/Application: High-precision single-passage rotary union designed for transferring various media including air, vacuum, and heat transfer oil in rotating applications.

KEY SPECS SUMMARY

Power: N/A

Interfaces / Ports: Single passage; nominal sizes DN 8 (1/4 inch) up to DN 40 (1 1/2 inch)

Indicators: N/A

Operating Temp: Maximum 300 degrees C for heat transfer oil/air/vacuum media

Platform / Compatibility: ND new design featuring a bellows system cartridge and ball bearings

Limit: Maximum 6 bar pressure for heat transfer oil/air; maximum speed 700 rpm

Lifecycle: Refer to the latest manufacturer manual.

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: Does the maximum operating temperature of 300 degrees C apply to all compatible media types?

A: Yes, the maximum temperature is 300 degrees C for heat transfer oil, air, and vacuum media.

Wiring & Installation:

Q: What are the primary components responsible for the leak-free sealing and rotation in this rotary union?

A: The reliable, smooth function is provided by the internal ball bearings and the bellows system cartridge design.

Troubleshooting & Compatibility:

Q: Can the 9001 RL-ND model be used with other fluid media such as water or steam?

A: The base 9001 ND series is rated for water (17 bar) and steam (10 bar), but verify RL-ND model specifics.

Replacement & Upgrades:

Q: What is the maximum recommended operating speed for the largest nominal sizes, such as DN 40?

A: The operating speed typically decreases for larger nominal sizes; refer to the latest manufacturer manual.