The DIN 2817 Safety Clamp is a specialized safety clamp designed to secure and lock hoses to piping systems. Primarily used for industrial, chemical, and transfer hoses, it complies with the German industrial standard DIN 2817.
In accordance with DIN 2817 specifications, these safety clamps are available in aluminum and stainless steel; however, to meet specific production needs, versions in copper is also available, with custom material options offered.
DIN 2817 Safety Clamps
Key Structure of DIN 2817 Safety Clamps
A typical DIN 2817 safety clamp generally consists of the following components:
Clamp Halves (Two-piece clamps)
Two or more metal clamp segments that fit together to clamp the hose from the outside.
Bolts & Nuts
Used to join the clamp segments and provide the necessary clamping force.
DIN 2817 Safety Clamp Structure
Advantages of Safety Hose Clamps
They are not constrained by the crimping dimensions of a hose crimping machine; these safety clamps feature a two-piece design secured by four bolts, making installation and removal convenient.
Reduced maintenance costs: As the safety clamp is a component separate from the hose and fitting, it avoids crimping-related issues and allows for easy replacement of only the damaged part. This lowers maintenance expenses and—crucially—offers reusability compared to permanently crimped fittings.
High versatility:Safety clamps can be selected in various materials and sizes based on specific operational requirements, and custom manufacturing is available.
Key Application Areas for Safety Hose Clamps
DIN 2817 safety hose clamps are commonly used in industrial environments that require high safety standards but involve relatively low pressures, including:
- Chemical industry
- Petrochemical industry
- Food processing industry
- Bulk material handling
- Industrial fluid transfer
- Wastewater or sewage discharge
DIN 2817 Safety Clamps Specifications
| Size | Hose Size (mm) | Total Size(mm) | Bolts and nuts | W | |||
| Inch/DN | I.D*W T | O.D | W | L | Pcs | Spec*L(mm) | G/set |
| 1/2”(DN15) | 13*5 | 22-24 | 50 | 51 | 4 | M6*20 | 250 |
| 3/4”(DN20) | 19*6 | 30-33 | 50 | 63 | 4 | M6*20 | 320 |
| 1”(DN25) | 25*6 | 36-39 | 50 | 69 | 4 | M6*20 | 340 |
| 1-1/4”(DN32) | 32*5 | 41-44 | 50 | 76 | 4 | M6*20 | 370 |
| 32*6 | 43-46 | 50 | 75 | 4 | M6*20 | 350 | |
| 32*8/35*6 | 47-50 | 50 | 79 | 4 | M6*20 | 360 | |
| 1-1/2”(DN40) | 38*5 | 47-49 | 50 | 83 | 4 | M6*20 | 380 |
| 38*6.5 | 50-52 | 50 | 83 | 4 | M6*20 | 380 | |
| 38*8 | 53-56 | 50 | 85 | 4 | M6*20 | 400 | |
| 40*10 | 58-61 | 51 | 86 | 4 | M6*20 | 380 | |
| 2”(DN50) | 50*6 | 62-63 | 56 | 97 | 4 | M8*25 | 650 |
| 50*8 | 64-67 | 56 | 103 | 4 | M8*25 | 650 | |
| 50*10 | 69-71 | 56 | 107 | 4 | M8*25 | 740 | |
| 2-1/2”(DN65) | 63*6 | 74-77 | 74 | 117 | 4 | M8*25 | 870 |
| 63*8/65*7 | 78-82 | 74 | 120 | 4 | M8*25 | 1100 | |
| 3”(DN80) | 75*8 | 89-94 | 76 | 133 | 4 | M8*25 | 1180 |
| 80*8 | 94-97 | 76 | 132 | 4 | M8*25 | 1160 | |
| 4”(DN100) | 100*8 | 114-119 | 120 | 166 | 4 | M10*40 | 2850 |
How do you correctly select a DIN 2817 safety clamp?
When selecting a DIN 2817 safety clamp, you cannot rely solely on the clamp’s nominal size; you must also consider the hose, the fitting, the working pressure, the operating temperature, the installation method, and the actual application environment. As a safety component within a hose assembly, the clamp performs its function of preventing detachment and ensuring secure fixation only when it is correctly matched to both the hose and the fitting.
What are the key factors to consider when selecting a DIN 2817 safety clamp?
1. Hose Outer Diameter (OD)
The hose OD is a critical parameter when selecting a safety clamp. Since the clamp is installed on the exterior of the hose, its internal dimensions must match the hose’s outer diameter.
2. Fitting Tail/Shank Size
A safety clamp does not operate in isolation; it must work in conjunction with a compatible hose tail or shank. Therefore, you must verify the size and configuration of the fitting’s tail when selecting a clamp.
The fitting tail must be capable of being correctly inserted into the hose to form a reliable connection, while the safety clamp secures the connection area between the hose and the fitting from the outside.
3. Clamp Size
DIN 2817 safety clamps come in various specifications, each with a corresponding applicable size range. The clamp size must match the actual dimensions of the assembled hose and fitting.
4. Working Pressure
Although the primary function of a DIN 2817 safety clamp is secure fixation rather than bearing the system pressure on its own, working pressure remains a crucial factor to consider during selection.
5. Safety Clamp Material
The material of the safety clamp directly affects its strength, corrosion resistance, and service life. Common materials include aluminum and stainless steel; surface treatment should also be considered. Stainless steel should be selected for corrosive environments.
6. Bolts and Fasteners
The bolts and nuts are also vital components of the DIN 2817 safety clamp. Pay attention to their material and fastening method to ensure proper tightening and installation.
