Band width: 9mm/12mm
Band thick: 0.6mm
Screw size: 7mm
Material: W1/ W2/ W4 201/301/304
Free running torque: 6 in-lbs (0.7 Nm)
Suggested installation torque: 43 in-lbs (5 Nm)
Germany Type Hose Clamps (DIN 3017) are engineered for high-performance sealing in demanding environments. Unlike American-type clamps, the non-perforated band and rolled edges of the German design prevent hose damage while providing superior 360-degree clamping force. Whether for automotive, industrial, or plumbing applications, our German-style worm drive clamps ensure a vibration-proof, leak-free connection.
High-Strength Screw: The screw is typically a machine-threaded, hex-head (or sometimes Phillips/slot) bolt made from hardened steel. The hex head allows for significantly higher torque application using tools like socket wrenches.
Smooth Band Edge: The inner edge of the band is often rolled or smoothed to prevent it from cutting into the hose, protecting its integrity.
Sizes Table
| Part No | Dimension range |
Part No | Dimension range |
|
| GM9W412 | 8-12 | GM9/12W445 | 30-45 | |
| GM9W416 | 10-16 | GM9/12W450 | 32-50 | |
| GM9W420 | 12-20 | GM9/12W460 | 40-60 | |
| GM9W422 | 12-22 | GM9/12W470 | 50-70 | |
| GM9/12W425 | 16-25 | GM9/12W480 | 60-80 | |
| GM9/12W427 | 16-27 | GM9/12W490 | 70-90 | |
| GM9/12W432 | 20-32 | GM9/12W4100 | 80-100 | |
| GM9/12W435 | 23-35 | ... | ... | |
| GM9/12W440 | 25-40 | GM9/12W4200 | 180-200 |
Differences of Germany Hose Clamp Band:
The band width is a critical design parameter that directly impacts the clamp's performance and suitability for specific tasks. The choice between 9mm and 12mm is primarily a trade-off between Pressure Containment, Surface Contact, and Hose Compatibility.
9 mm Width Band Germany Hose Clamp
the 9mm clamp is a specialized solution for tight spaces or specific, often smaller and stiffer, hoses. Its use requires more consideration of potential hose damage due to the higher force concentration.
12mm Width Band Germany Hose Clamp
the 12mm clamp is the go-to choice for general-purpose, high-integrity connections where protecting the hose and ensuring a perfect seal are the top priorities.
FAQ about Germany Type Hose Clamps
Q: Why is the German-type clamp safer for soft hoses?
A: The German-type hose clamp features a non-perforated (solid) band. This prevents the hose material from bulging through the slots, avoiding cuts and ensuring long-term hose integrity.
Q: What is the difference between W2 and W4 materials?
A: W2 has a stainless steel band and housing with a zinc-plated screw (cost-effective), while W4 is entirely made of 304 stainless steel, offering superior corrosion resistance for outdoor or marine use.
Q: Can these clamps withstand high-vibration environments?
A: Yes, our DIN 3017 clamps are designed with a high-torque housing that maintains constant tension even under significant mechanical stress and vibration.
