ISO-KF fittings can be used in a wide variety of applications including: 
• Roughing and foreline plumbing 
• Small systems 
• Systems requiring frequent cleaning or modification 
• Research and teaching laboratories 
ISO-KF components are primarily designed for use at subatmospheric pressure. 
Because of the large number of elastomer seals used. 

Installation

The ISO-KF components are assembled by inserting a centering ring between the two flange faces, then securing the assembly with a flange encompassing clamp (see Figure 2). 
 
Material and Size
• Flanges, Blanks, Fittings: Stainless Steel 304 or 316L
 • Clamps: Aluminum or Stainless Steel 304
 • Oring: Viton
 
Vacuum range
Elastomer seal: >= 1 x 10-8 Torr 
 
Temperature range
 Viton: -50°C to 200°C 

KF25 KF63 KF100 Blank Flange Vaccum Fittings

Detailed Images

KF Flange Series

• Short / Long Flange Weld Stub• Socket Weld Flange
• Blank Stubs Flange
• Blank Flange
• Bored Black Flange
• Center Ring with O-ring
• KF Bellow
• KF Double Pin Clamp

Short / Long Flange Weld Stub

Bellows

Center Ring with O-ring

Double Pin Clamp

Blank Flange

Bored Black Flange

KF Tee

KF Elbow

KF Reducer

Drawing

FAQ

Q: Does this tubing come with triclamp ends to be coupled together?A: This particular tubing comes without tri-clamp ends standard. We can always weld tri-clamp ferrules to the end of tubes for any specific length you need. These products are referred to as tri-clamp spool assemblies. If you need a specific length, please
 contact us.
 
Q: Are you able to cut tubing to lengths that don't require freight shipping? Say 5' lengths for example.?
A:Yes, we are able to cut down to other sizes. UPS Ground is able to ship up to 7' without the tubing being considered "oversized".We do charge a cutting fee for this service, however. Please contact us for a quote.
 
Q:How much does 1 stick of 4" tube weigh?
A: One 20' Stick of 4" Sanitary Tubing weighs approximately 75 pounds.
 
Q:You list gauge of this tubing at 16, but the wall thickness at 0.065". Isn't 16 gauge 0.0625"?
A: The wall thickness and gauges are all displayed in the table below. Please contact us if you have any other questions.
 
Q: Do you sell tubing in anything less than cases? I need to order just over 400 feet but don't want to pay for two cases as this is More than I need.
 A:  We do sell tubing on an individual basis however there is a $50 "broken box" fee applied to any order less than an entire case.Since we don't offer a way to order individual tube pieces online please call us to place an order over the phone.
 
Q: Do this product ship via freight?
 A: Yes, our tubing comes in standard 20 foot lengths and will need to ship via freight. I'd also like to mention that there is a broken box charge meaning that if you do not order an entire box of tubing you will be charge additional fees as such. For more information please contact us. Thanks.

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