Our line up includes six types of formed bellows with a flange or fittings at both ends.
All can be used under the following pressure, temperature, and specification life conditions to obtain predetermined operating strokes.The overall length of the bellows offered as standard products can be set as desired within a range that can meet the bellows performance as you request. Please feel free to ask us.
* For delivery time and price, feel free to ask us using the standard product estimate request form.
Detailed information about IF, CF, and IC standard products.
How to select standard formed bellows
They can be used for connecting KF flanges with use of clamp couplings.
CAD drawing download (member registration required)
Pressure conditions | (Internal) vacuum (External) atmospheric pressure |
---|---|
Temperature conditions | 20°C (baking temp. max. 250°C) |
Leak rate | 1×10-9 Pa・m3/s or less |
Bellows material | SUS316L |
Flange material | SUS316 |
Flange shape | ISO KF flange |
Repetition life | 10,000 repetitions |
Model | Bellows | Flange | Operating range of L |
Spring constant (N/mm) |
Effective area (cm2) |
Product drawing download |
||||
---|---|---|---|---|---|---|---|---|---|---|
Inner diameter |
Outer diameter |
Length | Outer diameter |
Inner diameter |
Length | |||||
Bi | Bo | ℓ | D | A | t | |||||
KF10 | 12.9 | 19 | 50 | 30 | 12.2 | 20 | 87~93 | 15.7 | 2.0 | 2D_pdf 3D_pdf |
KF16 | 16.1 | 23 | 50 | 30 | 17.2 | 20 | 86~94 | 14.7 | 3.0 | 2D_pdf 3D_pdf |
KF25 | 22.9 | 33 | 65 | 40 | 26.2 | 20 | 96~111 | 7.0 | 6.1 | 2D_pdf 3D_pdf |
KF40 | 43.6 | 58 | 75 | 55 | 41.2 | 20 | 100~130 | 5.4 | 20.3 | 2D_pdf 3D_pdf |
KF50 | 50.1 | 65 | 85 | 75 | 52.2 | 20 | 110~140 | 5.2 | 26.0 | 2D_pdf 3D_pdf |
KF63 | 76.3 | 92 | 85 | 87 | 70.2 | 20 | 108~142 | 7.6 | 55.6 | 2D_pdf 3D_pdf |
KF80 | 90.1 | 109 | 100 | 114 | 83.2 | 25 | 130~170 | 5.3 | 77.8 | 2D_pdf 3D_pdf |
KF100 | 106.5 | 125 | 100 | 134 | 102.2 | 25 | 130~170 | 6.9 | 105.2 | 2D_pdf 3D_pdf |
(Unit:mm)
* For drawings, right click and click the “Save File” button.
CAD drawing download (member registration required)
Pressure conditions | (Internal) vacuum (External) atmospheric pressure |
---|---|
Temperature conditions | 20°C (baking temp. max. 250°C) |
Leak rate | 1×10-9 Pa・m3/s or less |
Bellows material | SUS316L |
Flange material | SUS316 |
Flange shape | End pipe |
Repetition life | 10,000 repetitions |
Model | Bellows | End pipe | Operating range of L |
Spring constant (N/mm) |
Effective area (cm2) |
Product drawing download |
||||
---|---|---|---|---|---|---|---|---|---|---|
Inner diameter |
Outer diameter |
Length | Outer diameter |
thickness | Length | |||||
Bi | Bo | ℓ | D | t1 | T | |||||
PF10 | 12.9 | 19 | 50 | 17.3 | 1.65 | 10 | 67~73 | 15.7 | 2.0 | 2D_pdf 3D_pdf |
PF16 | 16.1 | 23 | 50 | 21.7 | 2.1 | 10 | 66~74 | 14.7 | 3.0 | 2D_pdf 3D_pdf |
PF25 | 22.9 | 33 | 65 | 27.2 | 2.1 | 15 | 87~103 | 7.0 | 6.1 | 2D_pdf 3D_pdf |
PF40 | 43.6 | 58 | 75 | 42.7 | 2.8 | 15 | 90~120 | 5.4 | 20.3 | 2D_pdf 3D_pdf |
PF50 | 50.1 | 65 | 85 | 60.5 | 2.8 | 20 | 110~140 | 5.2 | 26.0 | 2D_pdf 3D_pdf |
PF63 | 76.3 | 92 | 85 | 76.3 | 3.0 | 20 | 108~142 | 7.6 | 55.6 | 2D_pdf 3D_pdf |
PF80 | 90.1 | 109 | 100 | 89.1 | 3.0 | 20 | 120~160 | 5.3 | 77.8 | 2D_pdf 3D_pdf |
PF100 | 106.5 | 125 | 100 | 114.3 | 3.0 | 25 | 130~170 | 6.9 | 105.2 | 2D_pdf 3D_pdf |
(Unit:mm)
* For drawings, right click and click the “Save File” button.
CAD drawing download (member registration required)
Pressure conditions | ((Internal) vacuum (External) atmospheric pressure |
---|---|
Temperature conditions | 20°C (baking temp. max. 250°C) |
Leak rate | 1×10-9 Pa・m3/s or less |
Bellows material | SUS316L |
Flange material | SUS316 |
Flange shape | ISO KF flanges+ end pipes |
Repetition life | 10,000 repetitions |
Model | Bellows | Flange | End pipes | Overall length |
Spring constant (N/mm) |
Effective area (cm2) |
Product drawing download |
|||
---|---|---|---|---|---|---|---|---|---|---|
Inner diameter |
Outer diameter |
Length | Unrestricted length |
Operating range |
||||||
Bi | Bo | ℓ | L | L | ||||||
KP10 | 12.9 | 19 | 50 | See KF standard products. |
See PF standard products. |
80 | 77~83 | 15.7 | 2.0 | 2D_pdf 3D_pdf |
KP16 | 16.1 | 23 | 50 | 80 | 76~84 | 14.7 | 3.0 | 2D_pdf 3D_pdf |
||
KP25 | 22.9 | 33 | 65 | 100 | 92~108 | 7.0 | 6.1 | 2D_pdf 3D_pdf |
||
KP40 | 43.6 | 58 | 75 | 110 | 95~125 | 5.4 | 20.3 | 2D_pdf 3D_pdf |
||
KP50 | 50.1 | 65 | 85 | 125 | 110~140 | 5.2 | 26.0 | 2D_pdf 3D_pdf |
||
KP63 | 76.3 | 92 | 85 | 125 | 108~142 | 7.6 | 55.6 | 2D_pdf 3D_pdf |
||
KP80 | 90.1 | 109 | 100 | 145 | 125~165 | 5.3 | 77.8 | 2D_pdf 3D_pdf |
||
KP100 | 106.5 | 125 | 100 | 150 | 130~170 | 6.9 | 105.2 | 2D_pdf 3D_pdf |
(Unit:mm)
* For drawings, right click and click the “Save File” button.