OVERVIEW

Official designation: Haag + Zeissler Series SJC (SJC Series, Swivel Joint)

Role/Application: A heavy-duty, single-passage swivel joint engineered for reliable, high-pressure fluid transfer in demanding industrial applications, utilizing high-strength steel and a robust double sealing system.

KEY SPECS SUMMARY

Power: N/A

Interfaces / Ports: Threaded connections (G1/4 inch to G2 inch)

Indicators: N/A

Operating Temp: Minus 20 to plus 120 degrees C

Platform / Compatibility: Steel (42CrMo4) or stainless steel

Limit: 350 bar (steel), 1500 rpm max speed

Lifecycle: Refer to the latest manufacturer manual.

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What is the primary function of the double sealing system used in the heavy-duty SJC swivel joint design?

A: The double sealing system prevents leakage and significantly extends the service life, especially under high pressure.

Wiring & Installation:

Q: What are the key installation differences for the SJC series compared to lighter-duty swivel joints?

A: SJC joints require secure, precise mounting to manage high pressure and the higher stresses from the double bearing system.

Troubleshooting & Compatibility:

Q: What are the most common causes of premature wear in the SJC series seals, and how are they avoided?

A: Premature wear is often caused by media contamination or exceeding the maximum 1500 rpm rotational speed limit.

Replacement & Upgrades:

Q: Is a multi-passage version of the SJC swivel joint available for transferring multiple media simultaneously in one assembly?

A: Refer to the latest manufacturer manual for multi-passage options that are based on the robust SJC single-passage core design.