KF High Vacuum Seal SS304 Over Pressure Ring with Pipe Ring Fitting Stainless Steel ISO/NW Flange Pressure Centering

Applications

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

• Roughing and foreline plumbing
• Small pipe systems
• Systems need frequent cleaning or modification
• Research and teaching laboratories
• 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:Viton/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

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).

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)

KF  Over Pressure Ring 

*material:SS304

	Model for 304	Size	Max Pressure	A/mm	B/mm	C/mm	N.W./g
	FLG841K164	KF16	100psi	31.75	30	4
	FLG841K254	KF25	100psi	41	38.8	4	4.4
	FLG841K404	KF40	75psi	56	52.8	4	12
	FLG841K504	KF50	50psi	75	65.5	4	32

Use to retain O-ring when system is used at internal pressures over atmospheric

ISO  Over Pressure Ring 

*material:SS304

	Model for 304	Size(ISO/NW)	A/mm	B/mm	C/mm	N.W./g
	FLG841S634	63	95	86.5	4
	FLG841S804	80	110	96.1	4
	FLG841S1004	100	130	116.2	4
	FLG841S1254	125	154.8	146.5	4
	FLG841S1604	160	179.8	169.5	4
	FLG841S2004	200	240	227	4
	FLG841S2504	250	289.5	276.6	4
	FLG841S3204	320	369.5	332.4	5.5