Alloy Storz Coupling is a symmetrical aluminum Storz couplings deliver rapid, sexless interlocking for fluid and powder transfer. Manufactured to DIN 14301/14302 dimensions, they enable secure connection via a 120° twist, rated for working pressures up to 15 bar (217 PSI).
Technical Specifications
|
Parameter |
Specification |
|
Material |
Aluminum Alloy A356.2 / A380 (or customized alloys) |
|
Manufacturing Method |
Die Casting / Forging / CNC Machining |
|
Nominal Size (DN) |
DN25 (1") to DN200 (8") |
|
Lug Distance (KA) |
31mm (D), 66mm (C), 89mm (B), 133mm (A) |
|
Connection Types |
Hose Tail, Male Thread (BSP/NPT), Female Thread (BSP/NPT), Blank Cap, Reducer |
|
Working Pressure |
15 Bar (217 PSI) |
|
Test Pressure |
22.5 Bar (326 PSI) |
|
Standard Compliance |
Ref. DIN 14301 / DIN 14302 |
Core Advantages
Material Integrity: Produced from high-grade A356.2 aluminum alloy using high-pressure die-casting or forging processes. This controlled manufacturing process reduces internal porosity and improves structural strength under continuous pressure.
Surface Protection: Optional anodized surface treatment with 10–15 μm protective layer. This treatment improves resistance against atmospheric corrosion and common industrial exposure.
Precision Machining: Critical sealing faces and interlocking lugs are processed via CNC machining (tolerance control within ±0.05 mm) to support compatibility with standardized Storz systems.
Sealing Standard: Fitted with NBR (Nitrile) seals are supplied as standard (operating range: -20°C to +80°C). EPDM and Viton seals are available for higher temperatures or chemical exposure.
Applications
Agricultural & Irrigation Systems
High-volume water transfer and liquid fertilizer distribution.
Dry Bulk & Powder Handling
Pneumatic conveying systems on road tankers and silor trucks.
Industrial & Chemical Transfer
Non-corrosive fluid transport in plant facilities and construction sites.
Firefighting & Municipal Service
Standardized emergency water supply connections.
Quality Control
To ensure consistent quality for bulk commercial orders, our facility executes a strict inspection workflow:
Material Verification: Each aluminum batch is verified by optical emission spectrometry. Material Test Reports (MTR) can be provided per batch.
Hydrostatic & Air Testing: Finished couplings undergo hydrostatic pressure testing at 22.5 Bar according to inspection requirements. and low-pressure air leakage checks.
Dimensional Inspection: Lugs, thread pitch, and connection tolerances are inspected with precision plug and ring gauges prior to packaging.
Facility Certification: Our manufacturing facilities operate under ISO 9001:2015 Quality Management Systems.
Packaging & Shipping
Inner Packaging
Individual protective PE bags to prevent surface scratching during transit.
01
Outer Packaging
Standard 5-ply double-corrugated export cartons (Max gross weight: 25 kg/carton).
02
Palletization
Export plywood pallets compliant with ISPM 15 requirements wrapped with stretch film and heavy-duty plastic strapping.
03
Shipping Terms
FOB, CFR, CIF, DDP, DDU (Supported ports: Ningbo / Shanghai / Qingdao).
04
Lead Times
Standard samples ship in 3–5 days. Bulk production orders are completed in 20–30 days.
05
FAQ
Q: Can we customize thread standards like NPT or BSPT for specific markets?
A: Yes, threads are custom-machined to NPT, BSPT, or standard BSP based on regional market requirements.
Q: Are technical CAD drawings available prior to placing a bulk order?
A: Technical 2D and 3D CAD drawings are provided for engineering verification before formal production begins.
Q: How do you handle dimensional or structural defects found after shipment arrival?
A: Verified defective units are handled through replacement or compensation according to agreement.
Q: Do you accept payment via Letter of Credit (L/C) for large orders?
A: Irrevocable L/C at sight is accepted for large-volume orders, alongside standard T/T payment terms.
Q: Can we request third-party inspections like SGS or BV before vessel loading?
A: Third-party factory audits and pre-shipment goods inspections are fully supported upon customer arrangement.
Q: Is mixed-size ordering allowed within a single full container load (FCL)?
A: Multiple coupling sizes and thread types can be combined into one shipment to meet order thresholds.
Q: Can you provide non-branded plain packaging for neutral distributor resale?
A: Neutral packaging with customer part numbers is available upon request.
