OVERVIEW

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

Role/Application: A light-version, single-passage swivel joint with thread connections designed for reliable transfer of liquids or gases in swiveling or slow rotating machine assemblies, featuring ball bearing guidance.

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 (1.4571)

Limit: 100 bar (steel), 3000 rpm (estimated max)

Lifecycle: Refer to the latest manufacturer manual.

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What is the pressure rating difference for the SJD series based on the construction material?

A: The maximum pressure is 40 bar for the standard version and 100 bar for stainless steel construction.

Wiring & Installation:

Q: What type of internal bearing track is used in the SJD series to allow rotation or swiveling movements?

A: The SJD series features a built-in ball guiding track similar to ball bearings for low-speed motion.

Troubleshooting & Compatibility:

Q: Can the SJD swivel joint be used with electrical sliprings, and what is the standard sealing material?

A: Yes, it is compatible with electrical sliprings, and the standard seal is PTFE-Compound.

Replacement & Upgrades:

Q: Are there heavy-duty swivel joint alternatives to the SJD series for applications requiring higher external load capacity?

A: Yes, the SJC series is a heavy version of a swivel joint, also with thread connections.