DIN28403 ISO2861 SS316L Kf10 Kf50 Kf Vacuum Flange

• Customization: Available
• Standard: ANSI
• Type: Threaded Connection Flange
• Material: Stainless Steel
• Structure: Flanges
• Connection: Screws
• Manufacturing Way: Forging
• Surface Treatment: Polished Version on Request
• Transport Package: Carbon Box+Wooden Case
• Specification: KF10 to KF50
• Trademark: OEM/KM
• Origin: China
• Production Capacity: 10000PCS/Year

Product Description

DIN28403 ISO2861 SS316L Kf10 Kf50 KF Vacuum Flange

Product introduction
The most common vacuum flanges are the KF Flange, the ISO Flange, the CF Flange and the ASA Flange.
The term KF comes from the German words Klein Flansche, which is translated as "small flange" into English. They are manufactured according to the DIN 28403/ISO 2861 standard. The flange size is based on the largest nominal I.D. tube, in millimeters, that can be welded to it. For example, the through hole of a KF25 flange is 25mm, or about one inch. The standard sizes are KF10, KF16, KF25, KF40 and KF50. Less common are the KF20 and KF32 sizes.
Applications
These flanges are used in the pressure range from atmosphere to as low as 1×10-8Torr or mbar. The operating and bake out temperature range depends upon the O-ring material. The most common O-ring material is FKM (Viton-A) which is suitable for the operating temperature range of 32 deg F to 356 deg F (0 to 180 deg C) and can be exposed to short-term temperatures in the range of -15 deg F to 400 deg F (-26 to 204 deg C). The leakage and permeability rate of these flanges with FKM is 1×10-9std cc/sec of Helium.
Material
304/304L,316L,316LN

Inspection/test	Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, Ultrasonic flaw detector, Magnetic particle detector
Mill's certificate	EN10204 3.1
Marking	Buyer or seller's logo/standard/material/dimension/heat no
Packing	In wooden case or pallet depends on weight
Lead time	3 days for stock, 15-20days for fresh production depends on quantity
Payment term	30% in advance, balance against packing list, commercial invoice, mill's test certificate and pictures of inspection.