SFR KF/ISO Vacuum Centering O-Ring FKM/EPDM/NBR

Applications

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.

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).

Vacuum range

Elastomer seal: >= 1 x 10-8 Torr

Temperature range

Viton: -50°C to 200°C

O-Ring

* Material:Viton/NBR/EPDM

KF O-Ring

	Model for Viton	Size		A/mm				B/mm			N.W./g
	SFR0131K103	KF10		13.64				5.3
	SFR0131K163	KF16		18.5				5.3			3.3
	SFR0131K253	KF25		28				5.3			4.6
	SFR0131K403	KF40		41.2				5.3			6.8
	SFR0131K503	KF50		53				5.3			7.7

ISO O-Ring

	Model No		Size	A/mm	B/mm	N.W./g
	Black Viton	Black NBR
	SFR013B1S63	SFR014B1S63	ISO63	75	5.33	11.2
	SFR013B1S80	SFR014B1S80	ISO80	87.5	5.33	12.1
	SFR013B1S100	SFR014B1S100	ISO100	106	5.33	14.7
	SFR013B1S125	SFR014B1S125	ISO125	132	5.33	19.6
	SFR013B1S160	SFR014B1S160	ISO160	155	5.33	22.6
	SFR013B1S200	SFR014B1S200	ISO200	212	5.33	30
	SFR013B1S250	SFR014B1S250	ISO250	265	5.33
	SFR013B1S320	SFR014B1S320	ISO320	316.87	6.99
	SFR013B1S400	SFR014B1S400	ISO400	393.07	6.99
	SFR013B1S500	SFR014B1S500	ISO500	506.86	6.99