Sanitary Union End Cap / Blind Cap
This is a sanitary union end cap (blind cap/blank cap), designed to match DIN/SMS standard sanitary unions. It serves as a removable, hygienic plug for pipelines, equipment ports, or unused process connections. Equipped with a stainless steel chain to prevent loss, it provides a clean, leak-tight seal while meeting strict sanitary standards in food, beverage, pharmaceutical, and cosmetic industries.
Sanitary Union End Cap / Blind Cap
Key Features
- DIN/SMS Standard Compatibility: Fits perfectly with standard DIN 11851 or SMS sanitary unions, ensuring interchangeability in hygienic piping systems.
- Premium Stainless Steel Construction: Made of SS304 or SS316L, offering excellent corrosion resistance, durability, and food-grade safety.
- Anti-Lost Chain Design: Attached stainless steel chain keeps the cap connected to the system, preventing misplacement during disassembly or maintenance.
- Hygienic & Smooth Finish: Polished internal/external surfaces eliminate dead corners, making cleaning easy and preventing product buildup or bacterial growth.
- Secure & Leak-Proof Fit: Precision-machined threads ensure a tight, reliable seal when paired with a matching gasket, preventing leaks and contamination.
- Easy Installation & Removal: Simple union-style connection allows quick, tool-friendly assembly and disassembly for inspection, cleaning, or system modification.
Technical Specifications
| Item | Specification |
|---|---|
| Standard | DIN 11851 / SMS Sanitary Standard |
| Material | Stainless Steel 304 / 316L |
| Chain Material | Stainless Steel (SS304/316) |
| Surface Finish | Polished (Ra ≤ 0.8μm / custom) |
| Applicable Sizes | DN10 ~ DN100 (custom sizes available) |
| Working Pressure | PN16 (standard, higher pressure available) |
| Working Temperature | -20°C ~ +150°C |
| Compliance | 3-A, DIN, ISO sanitary standards |
Applications
- Food & Beverage Industry: Temporary or permanent closure of unused ports in dairy, brewery, and beverage processing pipelines.
- Pharmaceutical & Biotech: Sealing process connections, tank ports, and equipment openings in cleanroom and sanitary production environments.
- Cosmetic & Personal Care: Capping unused process lines in cosmetic and skincare manufacturing systems.
- Chemical & Water Treatment: Hygienic, corrosion-resistant closure for pure water, chemical, and CIP/SIP systems.
- General Sanitary Piping: Any hygienic fluid transfer system requiring removable, easy-to-clean blanking of pipe ends or equipment ports.







