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KF weld ring flange in 304 or 316L stainless steel, DN10–DN50. Choose from 28 variants to match your vacuum tubing dimensions. Request a quote today.
ISO-KF Weld Ring Flange - Image 2

ISO-KF Weld Ring Flange

SKU vc1fle1ss040-44-2 Categories ,

Description

The ISO-KF Weld Ring Flange provides a welding interface for vacuum tubing. This KF welding flange comes in DN10–DN50, with stainless steel 304 or 316L.

Select the correct variant for your tube outside diameter and wall thickness. Each DN size offers two tube options.

Request a quote with your selected order number and quantity.

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Field Data
Product Name ISO-KF Weld Ring Flange
System ISO-KF
Product Type Weld Ring Flange
Function Weldable flange for ISO-KF vacuum connections
Pressure Range - Elastomer Seal 1 × 10⁻⁸ mbar to 1.5 bar
Pressure Range - Metal Seal 1 × 10⁻⁹ mbar to 1.5 bar
Material Versions Stainless Steel 304 / 1.4301, Stainless Steel 316L / 1.4404
Available Sizes (DN) 10, 16, 20, 25, 32, 40, 50
Main Dimensions Tube Dimension, A, B, C, D
Temperature Range - Stainless Steel 304 / 1.4301 -196 to 300 °C
Temperature Range - Stainless Steel 316L / 1.4404 -196 to 350 °C
Stainless Steel 304 / 1.4301
Size (DN) Tube Dimension (mm) A (mm) B (mm) C (mm) D (mm) Order No
10 14X2 30 12.2 10 14 VC1FLE1SS010-14-2
10 13x1.5 30 12.2 10 13 VC1FLE1SS010-13-1
16 20X2 30 17.2 16 20 VC1FLE1SS016-20-2
16 19x1.5 30 17.2 16 19 VC1FLE1SS016-19-1
20 25X2 40 22.2 21 25 VC1FLE1SS020-25-2
20 23x1.5 40 22.2 20 23 VC1FLE1SS020-23-1
25 28X2 40 26.2 24 28 VC1FLE1SS025-28-2
25 29x1.5 40 26.2 26 29 VC1FLE1SS025-29-1
32 38X2 55 34.2 34 38 VC1FLE1SS032-38-2
32 35x1.5 55 34.2 32 35 VC1FLE1SS032-35-1
40 44.5X2 55 41.2 40.5 44.5 VC1FLE1SS040-44-2
40 41x1.5 55 41.2 38 41 VC1FLE1SS040-41-1
50 57X3.2 75 52.2 50.6 57 VC1FLE1SS050-57-3
50 53x1.5 75 52.2 50 53 VC1FLE1SS050-53-1
Stainless Steel 316L / 1.4404
Size (DN) Tube Dimension (mm) A (mm) B (mm) C (mm) D (mm) Order No
10 14X2 30 12.2 10 14 VC1FLE2SS010-14-2
10 13x1.5 30 12.2 10 13 VC1FLE2SS010-13-1
16 20X2 30 17.2 16 20 VC1FLE2SS016-20-2
16 19x1.5 30 17.2 16 19 VC1FLE2SS016-19-1
20 25X2 40 22.2 21 25 VC1FLE2SS020-25-2
20 23x1.5 40 22.2 20 23 VC1FLE2SS020-23-1
25 28X2 40 26.2 24 28 VC1FLE2SS025-28-2
25 29x1.5 40 26.2 26 29 VC1FLE2SS025-29-1
32 38X2 55 34.2 34 38 VC1FLE2SS032-38-2
32 35x1.5 55 34.2 32 35 VC1FLE2SS032-35-1
40 44.5X2 55 41.2 40.5 44.5 VC1FLE2SS040-44-2
40 41x1.5 55 41.2 38 41 VC1FLE2SS040-41-1
50 57X3.2 75 52.2 50.6 57 VC1FLE2SS050-57-3
50 53x1.5 75 52.2 50 53 VC1FLE2SS050-53-1

Stainless Steel 304 / 1.4301

Size (DN) Tube Dimension (mm) A (mm) B (mm) C (mm) D (mm)
10 14X2 30 12.2 10 14
10 13x1.5 30 12.2 10 13
16 20X2 30 17.2 16 20
16 19x1.5 30 17.2 16 19
20 25X2 40 22.2 21 25
20 23x1.5 40 22.2 20 23
25 28X2 40 26.2 24 28
25 29x1.5 40 26.2 26 29
32 38X2 55 34.2 34 38
32 35x1.5 55 34.2 32 35
40 44.5X2 55 41.2 40.5 44.5
40 41x1.5 55 41.2 38 41
50 57X3.2 75 52.2 50.6 57
50 53x1.5 75 52.2 50 53
Stainless Steel 316L / 1.4404
Size (DN) Tube Dimension (mm) A (mm) B (mm) C (mm) D (mm)
10 14X2 30 12.2 10 14
10 13x1.5 30 12.2 10 13
16 20X2 30 17.2 16 20
16 19x1.5 30 17.2 16 19
20 25X2 40 22.2 21 25
20 23x1.5 40 22.2 20 23
25 28X2 40 26.2 24 28
25 29x1.5 40 26.2 26 29
32 38X2 55 34.2 34 38
32 35x1.5 55 34.2 32 35
40 44.5X2 55 41.2 40.5 44.5
40 41x1.5 55 41.2 38 41
50 57X3.2 75 52.2 50.6 57
50 53x1.5 75 52.2 50 53

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