ISO-K High Quality Half Nipple Forged Fitting Stainless Steel Vacuum Half Nipple SS304 SS316L Fitting for Semiconductor

ISO Flange Assembly Instructions

ISO flanges are larger than KF flanges, similar to the KF flanges, they use a centering ring for sealing ISO flanges are widely used in systems that need frequent cleaning or disassembly.

There are two different methods to join the flanges together:1. Bolts (ISO-F, see diagram C) or 2. Claw clamps (ISO-K, see diagram A). These two flanges look very different, yet they can be joined together by using a single claw clamp(see diagram B).

A. ISO-K Flange with Double Claw Clamp
B. ISO-K Flange With Single Claw Clamp
C. ISO-F Flange
D. ISO-K Flange and Nonrotatable with Rotatable Bolt Ring

Applications

KF flanges are a sexless design made from 304 stainless, they can be used in a wide range of applications including

• 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.

Description

The ISO-KF system is a modular, building block method ofcreating a piping system. There are several advantages in the use of ISO components. Since component dimensions are standardized, elbows,tees, crosses or valves for a given size may be interchanged. The flanges are ''sexless'' and the seal is symmetrical, so that the components are rotatable. By using ISO components, system assembly is quick and cost effective. See Figure 1 for the ISO dimensions of flange sizes 10, 16, 25, 40 and 50. These dimensions apply to ISO-KF flanges of these nominal diameters throughout this catalog.

Material and Size

•  Flanges,Blanks,Fittings:Stainless Steel 304,316L or Aluminum
•  Clamps:Aluminum or Stainless Steel 304
•  O-Ring:FKM/NBR/EPDM
•  Size:KF10-KF50(See Figure 1

Vacuum range

Elastomer seal: >= 1 x 10-8 Torr

Temperature range

Viton: -50°C to 200°C

ISO-K Half Nipple

*Material: SS304/SS316L

	Model for 304		Size	A/mm	B/mm
	C=30mm	C=100mm
	FLW731S632504	FLW711S63250L1004	ISO63	95	63.5
	FLW731S633004	FLW711S63300L1004	ISO63	95	76.2
	FLW731S803004	FLW711S80300L1004	ISO80	110	76.2
	FLW731S803504	FLW711S80350L1004	ISO80	110	88.9
	FLW731S1004004	FLW711S100400L1004	ISO100	130	101.6
	FLW731S1004254	FLW711S100425L1004	ISO100	130	108
	FLW731S1606004	FLW711S160600L1004	ISO160	180	152.4
	FLW731S1606504	FLW711S160650L1004	ISO160	180	159
	FLW731S2008004	FLW711S200800L1004	ISO200	240	203.2
	FLW731S25010004	FLW711S2501000L1004	ISO250	290	254
	FLW731S32012004	FLW711S3201200L1004	ISO320	370	304.8
	FLW731S40016004	FLW711S4001600L1004	ISO400	450	406.8
	FLW731S50020004	FLW711S5002000L1004	ISO500	550	508