About
Product information

Seamless Step bellows are for the flexible connection of mixers, feeders or vessels on weighing and loading cells to supply lines, drain pipes or other forms of air transport or powder transport with two different dimensions of tubing.

When connecting two tubes with different dimensions there is often a requirement for a flexible connection in a reducer or tapered shape. As an added benefit there is no convelution in the design when a small diameter is connected to a larger one, preventing product from piling up in the bellow.

 Advantages

  • Air-tight
  • Dust-tight
  • No pile up
  • Low adjustment force and extremely flexible
  • Food contact safety
  • Dimensions custom made
  • Hygienic design

Conical- and Step Bellows are now available in many shapes and sizes. These bellows have no seams, which makes these more hygienic. The bellows can be designed as offset if the pipes are not aligned.

Flexible connectors with two different diameters are more flexible than straight cylindrical sleeves. This makes them ideal for weighing or dosing equipment. Step bellows and conical reducers are available in several materials, such as Silicone, Polyurethane and even flexible PVC.

Sizes
Sleeve 25mm Length

DN Inch Diameter range
10 0.39 10 – 12
13 0,51 13 – 15
17 0,67 17  -19
21 0,83 21 – 23
25 0,98 25 – 27
30 1,18 30 – 32
33 1,30 33 – 35
38 1,50 38 – 41
 Sleeve 45mm Length

DN Inch Diameter range
48  1,89  48 – 52
60  2,36  60 – 64
73  2,87  73 – 77
80  3,15  80 – 85
88  3,46  88 – 92
95  3,74 95 – 99
99  3,90 99 – 104
109 4,29 109 – 113
114 4,49 114 – 118
120 4,72 120 – 125
129 5,08 129 – 135
139 5,47 139 – 144
150 5,91 150 – 156
162 6,38 162 – 166
168 6,61 168 – 175
200 7,87 200 – 206
211  8,31 211 – 216
219 8,62 219 – 225
250 9,84 250 – 256
265  10,43  265 – 272
273  10,75  273 – 280
300  11,81 300 – 306
315  12,40  315 – 321
319  12,56  319 – 325
350 13,78 350 – 356
Materials
Name Material Colour Thickness Food Safety
PU-UF1 Polyurethane film Clear Transparent 1 mm
  • FDA 177.2600
  • EU 1935 /2004
  • EU 10/2011
PU-UF3 Polyurethane film Translucent/Transparent 1 mm
  • FDA 177.2600
  • EU 1935 /2004
  • EU 10/2011
PU-UF15 Polyurethane film Translucent White 1,5 mm
  • FDA 177.2600
  • EU 1935 /2004
  • EU 10/2011
MIP2 PVC film Translucent Yellow 2 mm n/a
PVC1 PVC film Clear Transparent 1 mm n/a
PVC3 PVC film Clear Transparent 3 mm n/a