OVERVIEW

Official designation: Haag + Zeissler Series SJG (SJG Series, High-Pressure Rotary Joint)

Role/Application: A robust, single-passage rotary joint for heavy industrial use, designed for reliable fluid transfer, supporting high pressure and continuous rotation at high speeds with durable 42CrMo4 steel construction.

KEY SPECS SUMMARY

Power: N/A

Interfaces / Ports: Threaded connections (varies by size)

Indicators: N/A

Operating Temp: Minus 20 to plus 120 degrees C

Platform / Compatibility: 42CrMo4 steel housing

Limit: 350 bar (DN 50), 1500 rpm max speed

Lifecycle: Refer to the latest manufacturer manual.

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What is the maximum pressure rating supported by the SJG rotary joint for the DN 125 nominal bore size?

A: The maximum operating pressure for the DN 125 size SJG rotary joint is rated at 250 bar.

Wiring & Installation:

Q: What are the primary installation constraints regarding misalignment or side loads for the SJG series?

A: Minimal side load and accurate alignment are essential for optimal performance and preventing premature seal wear.

Troubleshooting & Compatibility:

Q: What is the recommended maximum operating temperature for the fluid transferred through the SJG joint?

A: The SJG series can reliably handle fluid temperatures up to a maximum of 120 degrees C.

Replacement & Upgrades:

Q: Is the SJG series available in materials other than 42CrMo4 steel for enhanced corrosion resistance?

A: Consult the manufacturer for specialized models or material options to suit corrosive media applications.