Worm hose clamp W4 - 9/50 mm
Code: W4-050
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Product detailed description
Worm Hose Clamp W4-050
- worm hose clamps with compression band
- housing with tightening screw with hexagon socket SW 7
- completely made of AISI 304 stainless steel
- resistant to corrosion in industrial sectors
Additional parameters
| Category: | Worm hose clamps with compression band |
|---|---|
| EAN: | 8594200215033 |
| Material: | W4 - Stainless steel AISI 304 |
| Range (mm): | 32-50 |
| SW: | 7 |
| Tape width (mm): | 9 |
| Tape thickness (mm): | 0,6 |
| Buckle type: | snail |
| Hose diameter (mm): | 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50 |
| In stock: | In store, External warehouse |
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Marcel Svoboda
DAR is a brand of worm-drive hose clamps. We offer the W series in three material grades – W1, W2 and W4 – and HTW1 clamps for a higher tightening torque. They fit hoses from 8 to 200 mm in diameter.
The clamp has an embossed band and a housing with a screw. Turning the screw tightens the band, which presses the hose evenly onto the hose tail or fitting. The clamps are used in mechanical engineering, transport, construction, agriculture, the food and chemical industries and in power generation – and they work just as well in a workshop or at home.
Galvanised and stainlessWhich DAR clamp to choose
W1 — galvanised steel
For standard hoses in dry conditions. Band, housing and screw are all made of galvanised steel.
- for light-duty use and DIY
- ranges from 8–12 to 180–200 mm
- 9 or 12 mm band
W2 — stainless band
For everyday industrial use. The band is stainless steel; the housing and screw are surface-treated steel.
- band resists moisture
- ranges from 8–12 to 140–160 mm
- 9 or 12 mm band
W4 — all stainless
For damp and corrosive environments. The entire clamp is made of AISI 304 stainless steel.
- stainless band, housing and screw
- ranges from 8–12 to 140–160 mm
- 9 or 12 mm band
Wide 12 mm band
For larger hose diameters. A 12 mm band, 0.7 mm thick, spreads the force over a wider area of the hose.
- in all W1, W2 and W4 grades
- W1 up to 200 mm diameter
- SW 7 hexagon screw
HTW1 — high tightening torque
When a standard clamp is not enough. A strong one-piece pressed housing takes more tightening than a standard worm-drive clamp.
- rounded edges protect the hose
- Aluzinc-coated band
- 12 mm band width
Need a different type, such as clamps for suction hoses or an endless band? All hose clamps are in one category.
All hose clampsDAR clamps side by side
| Grade, material, use and dimensions | ||||
|---|---|---|---|---|
| Grade | Material | Best for | Band width | Hose diameter |
| W1 | galvanised steel band, housing and screw | light-duty use, workshop, DIY | 9 and 12 mm | 8–200 mm |
| W2 | stainless band, surface-treated steel housing and screw | everyday industrial use | 9 and 12 mm | 8–160 mm |
| W4 | entire clamp in AISI 304 stainless steel | damp and corrosive environments | 9 and 12 mm | 8–160 mm |
| HTW1 | galvanised steel, Aluzinc-coated band | joints needing a higher tightening torque | 12 mm | 15–32 mm |
The numbers in the clamp name, such as W1 - 9/27 mm, give the band width and the largest hose diameter. The exact range – 16–27 mm for this clamp – is in the parameters of each product.
How to choose and tighten a clamp
1. Measure the hose
Measure the outside diameter of the hose fitted on the hose tail. Choose a clamp whose range covers that diameter – the hose diameter filter in the category helps.
2. Choose the material
Galvanised W1 is enough for dry conditions. For everyday industrial use take W2, for damp and corrosive environments the all-stainless W4.
3. Fit the clamp
Slide the clamp onto the hose and move it a little way back from the hose end so that it sits over the hose tail.
4. Tighten
Tighten the screw with a spanner or SW 7 socket. Do not overtighten, as the band could damage the hose. Where more force is needed, use an HTW1 clamp.
Frequently asked questions
- What is the difference between W1, W2 and W4?
- The material. W1 is made entirely of galvanised steel and suits light-duty conditions. W2 has a stainless band with a surface-treated steel housing and screw and is intended for everyday industrial use. W4 is made entirely of AISI 304 stainless steel and resists corrosion.
- How do I choose the right clamp size?
- By the diameter range in the product parameters. The W1 - 9/27 mm clamp has a 9 mm band and fits hoses from 16 to 27 mm. Go by the outside diameter of the hose fitted on the hose tail.
- When should I use an HTW1 clamp?
- Wherever you need a higher tightening torque than a standard worm-drive clamp can take. The housing is pressed from one piece, the edges are rounded so they do not damage the hose, and the band has an Aluzinc coating which, according to the manufacturer, is three times more corrosion-resistant than standard galvanising.
- What do I tighten the clamp with?
- The screw on W series clamps has an SW 7 hexagon, so you can tighten it with a 7 mm socket or nut driver. Tighten only until the hose sits firmly on the hose tail.
- Why do the clamps have 9 and 12 mm bands?
- The narrower 9 mm band, 0.6 mm thick, suits small and medium hoses up to 160 mm in diameter. The wider 12 mm band, 0.7 mm thick, goes up to 200 mm diameter in the W1 grade.
DAR is a brand of hose clamps. You will find the material, diameter range and band dimensions in the parameters of each product.