OVERVIEW

Official designation: Haag + Zeissler MRF (MRF Series, Multiport Rotary Joint)

Role/Application: A precision multiport rotary union transferring air, gas, water, or oil to a rotating assembly, featuring roller bearing construction for robust, low-speed industrial use.

KEY SPECS SUMMARY

Power: N/A

Interfaces / Ports: 2 to 8 passages, DN 10 (3/8 inch) nominal size

Indicators: N/A

Operating Temp: Up to 90 degrees C (for air, water, oil, nontoxic gases)

Platform / Compatibility: Segment design, universal use for cooling, heating, clamping

Limit: 250 bar (max 10 rpm, hydraulic oil) or 10 bar (air, water, nontoxic gas)

Lifecycle: Refer to the latest manufacturer manual.

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What material is used for the dynamic sealing element to ensure leak-free operation?

A: The dynamic seal is a PTFE-Compound sliding shoe, combined with an O-Ring for static sealing.

Wiring & Installation:

Q: What is the recommended procedure when operating the rotary joint at maximum pressure and speed simultaneously?

A: Do not operate the joint at simultaneously maximum operating limits without consulting the manufacturer.

Troubleshooting & Compatibility:

Q: What is the maximum safe operating temperature for media such as hydraulic oil and compressed air?

A: The maximum safe temperature for air, water, hydraulic oil, and nontoxic gases is 90 degrees C.

Replacement & Upgrades:

Q: Is there an option for this MRF rotary joint series to also transmit electrical signals?

A: The MRF-E series is the dedicated variant that integrates an electrical slip ring for signal transmission.