Essential details
Specification Number:Aluminum Storz Locking Blank Cap
Product Introduction
Definition
Aluminum Storz Blank Cap is standard DIN type sealing end cap, designed to lock and seal Storz bayonet ports temporarily or permanently. It perfectly matches all standard Storz fire couplings, used for closing idle pipeline openings, preventing dust, dirt and water entering pipes and equipment.Compliance Standard: DIN 14301 / EN 14420-6Material:High-strength lightweight aluminum alloy, impact-proof, rust-proof and durable for outdoor and harsh working conditions.Structure: Standard symmetrical Storz bayonet locking structure, solid sealed end without flow hole, easy quick installation and removal.
Key Features
✅Premium Lightweight Aluminum AlloyIntegral die-cast construction with high hardness and toughness, much lighter than iron and brass caps, easy to carry and install on site.
⚡ Tool-Free Quick Lock DesignSymmetrical double lugs structure, push and twist to lock tightly, fast assemble and disassemble without any tools, save working time greatly.
🛡️ Effective Dust & Water Proof SealComes with durable rubber sealing gasket, fit closely with Storz connector, effectively block dust, debris, rainwater and sundries from entering pipeline interiors.
🌦️ Excellent Anti-Corrosion PerformanceAdopts natural anodized surface treatment, forms firm protective layer against oxidation, moisture and mild corrosion, long service life for long-term outdoor placement.
🔒Firm Locking & Not Easy to Fall OffPrecision manufactured bayonet size, tight clamping after locking, stable connection, not loose or drop under vibration and slight external force.
💪 Strong Pressure ResistanceQualified raw material and precise processing, withstand rated working pressure up to 16 Bar, safe to seal pipelines under normal pressure state.
Specifications
Material:High Grade Aluminum AlloyExecutive Standard: DIN 14301 / EN 14420-6Connection Type: Storz Bayonet Lock Sealing EndSurface Treatment: Natural Anodized Finish as standard; Hard Anodized / Powder Coating availableApplicable Medium: Fire pipeline, industrial water pipeline idle port sealingWorking Temperature: -30℃ ~ +80℃Max Working Pressure:16 Bar standard working pressureMatching Gasket: NBR / EPDM optional

| Model | DIN/mm | Inch | A/mm | B/mm | C/mm |
| AL-STBC100 | DN100 | 4" | 60 | 115 | 156 |
| AL-STBC125 | DN125 | 5" | 67.5 | 148 | 196 |
| AL-STBC150 | DN150 | 6" | 79 | 160 | 215 |
| AL-STBC200 | DN200 | 8" | 86 | 220 | 280 |
| AL-STBC200 | DN250 | 10" | 93.5 | 278 | 339 |
| AL-STBC300-3 | DN300-3teeth | 12" | 103 | 304 | 384 |
| AL-STBC300-4 | DN300-4teeth | 12" | 115 | 304 | 416 |
| AL-STBC350 | DN350 | 14" | 122 | 350 | 448 |




