DS Round Nut
KINGMAN DS sanitary union round nut is precisely CNC-machined from SS304/SS316L stainless steel in accordance with DS sanitary pipeline specifications. As the core locking and pressure-bearing component of DS unions, it features accurate thread profile and high concentricity to perfectly match DS standard cloud head threads with smooth and uniform screwing travel. The reinforced thickened structure ensures stable pressure-bearing performance. Polished surface and burr-free internal threads adapt to frequent disassembly and high-pressure operation of hygienic pipelines. It provides uniform axial compression to ensure tight sealing fit, widely used in DS-standard detachable hygienic pipelines for food, pharmaceutical and daily chemical industries.
Specifications
| Parameter | Value |
|---|---|
| Product Type | Sanitary Union |
| Size Range | DN15–DN150 (approx. 1/2"–6") |
| Material | 304 / 316L stainless steel |
| Seal Material | EPDM / FKM (Viton) / Silicon |
| Connection Standard | 3A / SMS / DIN / ISO / RJT / IDF /ASME BPE |
| OEM | any special OEM services |
| Certification | ISO 9001, 3A,CE,EAC,health wading license |
Features
- 1. Manufactured strictly according to DS standard specifications with accurate thread parameters, perfectly compatible with all DS union cloud heads and flat joints for excellent industry interchangeability.
- 2. High-precision CNC turning ensures full and regular thread profile with uniform meshing clearance. It maintains smooth locking performance without jamming or thread slipping after repeated assembly.
- 3. Reinforced pressure-bearing structure with reasonable force distribution disperses pipeline pressure and vibration load effectively, avoiding sealing failure caused by local stress concentration.
- 4. Stable physical and chemical properties resist corrosion of cleaning agents and temperature alternation, adapting to long-term continuous production and CIP cleaning conditions.
- 5. Fine internal and external polishing creates dense non-porous surface to prevent dirt accumulation and bacterial growth, meeting strict hygienic control standards.
- 6. Standardized locking stroke provides uniform and controllable axial compression force, allowing precise adjustment of sealing tightness and improving pressure adaptability for diverse working conditions.
Working Principle
The DS union round nut performs core functions of axial locking, uniform pressure application and stable sealing. During assembly, precise thread meshing with the cloud head generates steady axial thrust to compress the flat joint and gasket evenly, forming a full-range closed sealing layer to prevent medium leakage and external contamination. During operation, the rigid nut structure locks the sealing gap stably, offsetting gap changes caused by pipeline vibration, pressure fluctuation and thermal expansion to maintain long-term sealing reliability. Reverse loosening releases pressure quickly for pipeline disassembly without pipe cutting, balancing sealing stability and maintenance flexibility of hygienic pipelines.
Why Choose KINGMAN
Support for Non-Standard Orders
Dimensions, material and matching union requirements can be reviewed for DS round nuts when standard catalog options do not suit the application.
Repeat Orders Stay Consistent
Approved specifications can move into repeat production under the same manufacturing system, giving distributors and equipment builders a more stable replenishment path.
Your Forwarder Is Welcome
Use KINGMAN's export arrangement or appoint your own freight forwarder. FCL and LCL shipments are supported for different order volumes.
