Industrial Hose Fastening
9 mm German Type Bridge Hose Clamp for Spiral Hoses
The DISLAB PRECISION German type bridge hose clamp is designed for spiral-reinforced, corrugated and externally ribbed hoses. Its formed bridge sections follow the raised hose profile, helping the band maintain firm contact around the hose without pressing unevenly against the reinforcement.
Product Overview
A Clamp Profile Made for Raised and Spiral Hose Surfaces
A standard flat-band clamp may sit on top of a spiral wire or corrugated ridge. The bridge clamp uses raised sections to cross these profiles, allowing the remaining band surface to apply pressure more evenly around the hose.
Formed Bridge Structure
The bridge sections span raised hose reinforcement and help the band follow the hose’s effective sealing diameter.
9 mm Compact Band
The 9 × 0.6 mm band provides a compact fastening solution for flexible ducting, suction hoses and industrial pipe connections.
Controlled Screw Adjustment
The worm-drive mechanism provides gradual diameter adjustment and can be installed with common workshop tools.
Multiple Material Options
W2, W4 and W5 configurations support different requirements for cost, moisture exposure and corrosion resistance.
Clamp Construction
Band, Bridge, Housing and Screw
The clamp combines a perforated stainless steel band with formed bridge sections, a worm-drive housing and an adjustable screw. Each part contributes to accurate positioning on spiral or externally reinforced hose.
- Band: wraps around the hose and distributes the clamping load.
- Bridge: crosses the raised spiral or corrugated section instead of compressing directly onto it.
- Housing: keeps the screw and perforated band aligned during tightening.
- Screw: provides controlled adjustment with a 7 mm head and combination drive.
Technical Data
Product Specifications
Confirm the hose outside diameter and spiral pitch before placing an order. The bridge position should match the hose reinforcement profile.
| Parameter | Specification |
|---|---|
| Product Type | German-Type Bridge Worm-Drive Hose Clamp |
| Band Width × Thickness | 9 × 0.6 mm |
| Displayed Size Range | 30–50 mm; additional diameters available on request |
| Screw Head | 7 mm hex head |
| Screw Drive | Combination Phillips/slotted drive |
| Available Material Classes | W2, W4 and W5 |
| Suitable Hose Profiles | Spiral-reinforced, corrugated and externally ribbed hose |
Dimensions and material combinations should be confirmed against the required operating environment and hose construction.
Material Options
W2, W4 and W5 Configurations
Select the material class according to humidity, chemical exposure, corrosion conditions and project budget.
| Material Class | Band | Screw | Housing |
|---|---|---|---|
| W2 | 200/300 Series Stainless Steel | Galvanized Steel | 200/300 Series Stainless Steel |
| W4 | 200/300 Series Stainless Steel | 200/300 Series Stainless Steel | 200/300 Series Stainless Steel |
| W5 | SS316 | SS316 | SS316 |
Product Advantages
Secure Fastening on Irregular Hose Profiles
The bridge geometry helps the clamp maintain a stable position on hoses that cannot be fastened effectively with a conventional flat-band clamp.
Improved Structural Rigidity
Reinforced bridge sections help the clamp resist deformation during installation and service.
More Even Clamping Pressure
The formed profile helps reduce pressure concentration around raised spiral reinforcement.
Convenient Adjustment
The clamp can be tightened with a hex driver, Phillips screwdriver or flat-head screwdriver.
Resistance to Loosening
Stable band engagement helps the clamp remain secure in equipment exposed to regular vibration.
Purpose and Function
What the Bridge Hose Clamp Is Used for
This clamp is intended for hose connections where an external spiral, wire reinforcement or corrugated surface prevents a standard clamp from sitting evenly.
Fastening Spiral and Corrugated Hoses
The bridge clamp secures flexible industrial hoses to fittings, ducts, couplings and pipe connections. The raised bridge sections are positioned over the hose reinforcement, while the band tightens against the lower hose surface.
- Connect flexible hose to rigid pipe or duct fittings.
- Secure spiral-reinforced suction and delivery hoses.
- Fasten corrugated ventilation and dust collection ducts.
- Support maintenance and replacement hose assemblies.
Reducing Uneven Pressure and Clamp Movement
When a conventional clamp rests directly on a spiral ridge, it can create uneven contact, interfere with tightening or shift away from the required sealing position.
- Helps prevent the clamp from sitting only on raised ribs.
- Reduces localized pressure on external reinforcement.
- Improves positioning around irregular hose surfaces.
- Helps reduce loosening and leakage risk under vibration.
Typical Applications
Industrial Hose and Ventilation Connections
The compact 9 mm band is suitable for a wide range of flexible hose connections used in industrial ventilation, material handling and fluid transfer systems.
- Industrial ventilation and air duct systems
- Spiral-reinforced suction hoses
- Dust and particle collection hoses
- Flexible corrugated pipe connections
- Material transfer and extraction equipment
- General industrial hose assemblies
Ordering Guide
Information Required for Clamp Selection
Accurate hose information allows the bridge spacing, diameter and material to be matched to the actual installation.
Measure the hose at the intended clamping position rather than relying only on its nominal inside diameter.
Provide the spacing, height and direction of the external spiral so the bridge layout can be checked.
Confirm humidity, temperature and corrosive exposure to select the appropriate W2, W4 or W5 material.
Technical FAQ
German-Type Bridge Hose Clamp Questions
Why is a bridge hose clamp used instead of a standard worm-drive clamp?
A standard flat band can rest on top of the external spiral or reinforcement wire. The formed bridge sections cross these raised areas and allow more of the band to contact the lower hose surface.
Is this clamp suitable for every type of corrugated hose?
The clamp diameter, bridge spacing and bridge position must match the hose profile. Hose outside diameter, spiral pitch and a clear photo or drawing should be checked before production.
What is the difference between W2, W4 and W5 materials?
W2 combines a stainless steel band and housing with a galvanized steel screw. W4 uses stainless steel components throughout. W5 uses SS316 for applications requiring a higher level of corrosion resistance.
Which tools can be used to tighten the clamp?
The screw can be tightened with a 7 mm hex driver. The combination head also supports Phillips and slotted screwdrivers, depending on installation access.
How should the correct clamp diameter be selected?
Measure the actual outside diameter of the hose after it is installed over the fitting. The selected clamp range should place this diameter near the middle of the adjustment range rather than at its extreme limit.
Can DISLAB PRECISION supply custom diameters and packaging?
Custom clamp diameter, bridge position, material, labeling and export packaging can be reviewed according to the hose drawing, sample and order quantity.
DISLAB PRECISION
Send Us Your Hose Diameter and Spiral Profile
For an accurate quotation, provide the hose outside diameter, spiral pitch, operating environment, preferred material class and required quantity. Photos, drawings and physical samples can also be used for clamp selection.
Explore the Complete Industrial Clamps Range
Download the DISLAB PRECISION Industrial Clamps Catalog to compare clamp families, materials, construction options and typical applications. Use it to shortlist a suitable design, then send us your dimensions, operating conditions and required quantity for review.
Request a Hose Clamp Quotation
Tell us the clamp type, installed hose outside diameter, preferred material, required quantity, application and destination country. Our team will review the details and respond with practical specification and quotation guidance.
Need to send drawings or specifications?
Email your PDF, STEP, DWG, DXF or other reference files directly to [email protected], or send them via WhatsApp.
For CAD drawings, product photos, samples or detailed specifications, submit the form first and then email the files directly to David .