
DD Type Unidirectional Threaded Rotary Joint
♦The DD type rotary joint belongs to the D-type rotary joint series.
♦It adopts a double end-face sealing structure and is equipped with a stainless steel bellows compensator inside.
♦Its unidirectional flow and threaded connection design can meet the fluid transmission requirements of specific industrial scenarios, supporting the stable operation of production processes.
Product Drawing


Product Parameters
|
Technical Parameters |
|
|
Medium |
Coolant, Hot Water, Cold Water, Compressed Air, Low-Pressure Steam |
|
Max. Pressure |
1.8 Mpa |
|
Max. Temperature |
120℃ |
|
Max. Speed |
100 - 500 rpm (varying with different calibers) |
Product Features
Stable Unidirectional Flow
One-way flow design prevents backflow, making it ideal for processes requiring specific flow directions.
Excellent Sealing Performance
Double end-face seal, combined with a stainless steel bellows compensator, effectively prevents leakage even in complex conditions.

Convenient & Secure Threaded Connection
Easy to install with reliable threaded connections, minimizing leakage risks.
Versatile For Diverse Scenarios
Stable at varying speeds, compatible with various media, and suitable for a wide range of industrial environments.
FAQ
Q: Does your company offer customization services?
A: Yes, we offer customization services, including OEM, ODM, and OBM options, to meet our customers' diverse needs.
Conclusion
With its reasonable design and reliable performance, the DD type unidirectional flow threaded rotary joint plays an important role in industrial fluid transmission. Whether in processes with strict fluid flow direction requirements or in complex industrial environments, it can stably transmit fluids.
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