The Aluminum Safety Clamp (EN 14420-3 / DIN 2817) is a forged alloy clamp designed to provide uniform clamping force and mechanical support for hose-to-fitting assemblies. It provides corrosion resistance and lightweight performance for hose assemblies used in chemical, food, and general fluid transfer applications.
Technical Specifications
|
Nominal Size (DN) |
Hose I.D. (mm) |
Hose O.D. Range (mm) |
Working Pressure (Bar) |
Bolt Size |
|
DN25 (1") |
25 |
36 - 39 |
25 |
M6 x 20 |
|
DN32 (1-1/4") |
32 |
43 - 46 |
25 |
M6 x 25 |
|
DN40 (1-1/2") |
40 |
50 - 53 |
25 |
M6 x 25 |
|
DN50 (2") |
50 |
63 - 67 |
25 |
M8 x 30 |
|
DN65 (2-1/2") |
65 |
78 - 82 |
25 |
M8 x 35 |
|
DN80 (3") |
80 |
93 - 97 |
25 |
M10 x 40 |
|
DN100 (4") |
100 |
118 - 122 |
25 |
M10 x 50 |
Key Advantages
Manufactured by high-pressure forging from EN AW-6082 T6 alloy, providing consistent strength and reduced internal defects.
CNC-machined with ±0.05 mm dimensional tolerance to ensure consistent clamping performance at working pressures up to 25 bar.
Features a four-bolt split-collar design with internal ribs to improve hose retention and prevent fitting separation under pressure.
Customization & OEM Capabilities
OEM options are available for different market and application requirements:
Surface Finishing
Anodizing (clear/black), Shot Blasting, Acid Washing, or Electro-polishing.
Traceability & Marking
Laser marking options include heat numbers, part numbers, size codes, and customer logos for product identification.
Coupling Compatibility
Fully compatible with standard EN 14420-5 tank truck couplings, Camlock connectors, and Guillemin fittings.
Manufacturing Capabilities
Production Facility: Equipped with heavy-duty forging presses, precision multi-axis CNC machines, and controlled surface-treatment lines.
Material Integrity: Utilizing prime-grade EN AW-6082 aluminum billets subjected to controlled T6 heat treatment to guarantee uniform material hardness and mechanical reliability.
Scalable Production Line: Optimized capacity featuring high-volume mold tooling and flexible batch scheduling for standard sizes, supported by localized raw material reserves to short lead times, minimize supply chain disruption, and ensure consistent.
Quality Control
Each batch undergoes quality inspection before shipment:
Spectrometric Material Verification: Every lot of aluminum raw material is verified using optical emission spectrometry. Material Test Reports (MTR) according to EN 10204 3.1 are provided upon request.
Dimensional Inspection: Critical mating dimensions, bolt hole alignments, and shell diameters are verified using calibrated go/no-go gauges and Coordinate Measuring Machines (CMM).
Hydrostatic Pressure Testing: Production samples are tested at 1.5 times the working pressure (37.5 bar) to verify pressure resistance.
Compatible Connectors
Assembly Diagram
Packaging & Shipping
Inner Packaging: Each individual clamp half is securely packed in a sealed polyethylene (polybag) to prevent friction, scratching, and dust accumulation during storage.
Intermediate Packaging: Completed clamp sets (including matching bolts and nuts) are organized into sturdy, heavy-duty corrugated master cartons labeled with clear product identification, size codes, and quantity markers.
Outer Palletization: Master cartons are stacked securely on fumigation-free export wooden or plastic pallets, tightly wrapped with industrial stretch film, and reinforced with strapping bands to ensure stability during long-distance ocean or air freight.
Custom Marking: Customized shipping marks, barcodes, or specific client labels can be printed on the outer cartons upon request to streamline warehouse intake.
FAQ
Q: What is the payment method?
A: T/T. A 30% deposit is required, and the remaining 70% is paid against the copy of the B/L.
Q: Is the working pressure different between aluminum and stainless steel safety clamps?
A: No. Both have the same working pressure rating. The difference is mainly in material compatibility and application environment.
Q: Do both hose inner diameter and outer diameter need to meet the requirements?
A: Yes, both are essential and must meet the required specifications.
Q: Are samples provided for confirmation after customization?
A: Yes, samples can be provided for confirmation before mass production.
Q: What is the minimum order quantity (MOQ) for standard sizes?
A: Standard sizes usually require a 100-piece MOQ per size, while custom orders depend on specific requirements.
Q: What is the typical lead time for bulk orders?
A: Standard orders typically ship within 15 to 20 days after deposit confirmation.
Q: Are bolts and nuts included with the safety clamp?
A: Yes, each clamp set includes standard grade 8.8 galvanized steel bolts and locking nuts by default.
Q: Can these aluminum safety clamps be reused after hose replacement?
A: Yes, provided the clamp halves and bolts show no severe physical damage, corrosion, or thread wear.
Q: How are the safety clamps packaged for export shipping?
A: Clamps are packed in individual polybags, then placed into heavy-duty corrugated cartons and wrapped export pallets.
Q: Is third-party factory inspection accepted before shipment?
A: Yes, third-party inspections by agencies such as SGS or BV are welcomed prior to container loading.
