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ISO-KF Weld Ring Flange
ISO-KF Weld Ring Flange - Image 2

ISO-KF Weld Ring Flange

SKU vc1fle1ss040-44-2 Categories ,

Description

The ISO-KF Weld Ring Flange is designed for vacuum systems that require a weldable ISO-KF connection point with reliable sealing performance. It is available in Stainless Steel 304 / 1.4301 and Stainless Steel 316L / 1.4404, with multiple tube dimension options across standard sizes from DN10 to DN50. The catalog lists a pressure range of 1 × 10⁻⁸ mbar to 1.5 bar with elastomer seal, and 1 × 10⁻⁹ mbar to 1.5 bar for 304 and 316L with metal seal, making this component suitable for durable welded vacuum assemblies in demanding applications.

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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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