ISO-KF Thin Wall Metal Vacuum Hose

Compare	Model	Compatibility	rankScore	Flange Size	Free Length	Compressed Length	Static Bend Radius	Spring Rate	Availability	Price
100317411 Metal Wall Vacuum Hose, NW16 ISO-KF, 250 mm Length, 0.15 mm Hose Wall $112 2 Weeks	100317411 Metal Wall Vacuum Hose, NW16 ISO-KF, 250 mm Length, 0.15 mm Hose Wall	UNIVERSAL	1.0	NW16	9.84 in. (250 mm)	6.41 in. (163 mm)	1.625 in.	27 lb/in.	2 Weeks	$112
100317413 Metal Wall Vacuum Hose, NW25 ISO-KF, 250 mm Length, 0.15 mm Hose Wall $126 1 Week	100317413 Metal Wall Vacuum Hose, NW25 ISO-KF, 250 mm Length, 0.15 mm Hose Wall	UNIVERSAL	1.0	NW25	9.84 in. (250 mm)	6.41 in. (163 mm)	1.375 in.	16 lb/in.	1 Week	$126
100317415 Metal Wall Vacuum Hose, NW40 ISO-KF, 250 mm Length, 0.15 mm Hose Wall $142 7 Weeks	100317415 Metal Wall Vacuum Hose, NW40 ISO-KF, 250 mm Length, 0.15 mm Hose Wall	UNIVERSAL	1.0	NW40	9.84 in. (250 mm)	6.23 in. (158 mm)	2.5 in.	8.6 lb/in.	7 Weeks	$142
100317416 Metal Wall Vacuum Hose, NW50 ISO-KF, 250 mm Length, 0.15 mm Hose Wall $177 1 Week	100317416 Metal Wall Vacuum Hose, NW50 ISO-KF, 250 mm Length, 0.15 mm Hose Wall	UNIVERSAL	1.0	NW50	9.84 in. (250 mm)	7.05 in. (179 mm)	3.25 in.	13 lb/in.	1 Week	$177
100317421 Metal Wall Vacuum Hose, NW16 ISO-KF, 500 mm Length, 0.15 mm Hose Wall $168 8 Weeks	100317421 Metal Wall Vacuum Hose, NW16 ISO-KF, 500 mm Length, 0.15 mm Hose Wall	UNIVERSAL	1.0	NW16	19.69 in. (500 mm)	12.30 in. (313 mm)	1.625 in.	12 lb/in.	8 Weeks	$168
100317423 Metal Wall Vacuum Hose, NW25 ISO-KF, 500 mm Length, 0.15 mm Hose Wall $198 1 Week	100317423 Metal Wall Vacuum Hose, NW25 ISO-KF, 500 mm Length, 0.15 mm Hose Wall	UNIVERSAL	1.0	NW25	19.69 in. (500 mm)	12.30 in. (313 mm)	1.375 in.	7.3 lb/in.	1 Week	$198
100317425 Metal Wall Vacuum Hose, NW40 ISO-KF, 500 mm Length, 0.15 mm Hose Wall $210 7 Weeks	100317425 Metal Wall Vacuum Hose, NW40 ISO-KF, 500 mm Length, 0.15 mm Hose Wall	UNIVERSAL	1.0	NW40	19.69 in. (500 mm)	11.70 in. (297 mm)	2.5 in.	3.9 lb/in.	7 Weeks	$210
100317426 Metal Wall Vacuum Hose, NW50 ISO-KF, 500 mm Length, 0.15 mm Hose Wall $245 7 Weeks	100317426 Metal Wall Vacuum Hose, NW50 ISO-KF, 500 mm Length, 0.15 mm Hose Wall	UNIVERSAL	1.0	NW50	19.69 in. (500 mm)	13.50 in. (342 mm)	3.25 in.	5.9 lb/in.	7 Weeks	$245
100317441 Metal Wall Vacuum Hose, NW16 ISO-KF, 1000 mm Length, 0.15 mm Hose Wall $285 1 Week	100317441 Metal Wall Vacuum Hose, NW16 ISO-KF, 1000 mm Length, 0.15 mm Hose Wall	UNIVERSAL	1.0	NW16	39.40 in. (1000 mm)	24.10 in. (613 mm)	1.625 in.	5.8 lb/in.	1 Week	$285
100317443 Metal Wall Vacuum Hose, NW25 ISO-KF, 1000 mm Length, 0.15 mm Hose Wall $325 8 Weeks	100317443 Metal Wall Vacuum Hose, NW25 ISO-KF, 1000 mm Length, 0.15 mm Hose Wall	UNIVERSAL	1.0	NW25	39.40 in. (1000 mm)	24.10 in. (613 mm)	1.375 in.	3.4 lb/in.	8 Weeks	$325
100317445 Metal Wall Vacuum Hose, NW40 ISO-KF, 1000 mm Length, 0.15 mm Hose Wall $335 1 Week	100317445 Metal Wall Vacuum Hose, NW40 ISO-KF, 1000 mm Length, 0.15 mm Hose Wall	UNIVERSAL	1.0	NW40	39.40 in. (1000 mm)	22.50 in. (571 mm)	2.5 in.	1.9 lb/in.	1 Week	$335
100317446 Metal Wall Vacuum Hose, NW50 ISO-KF, 1000 mm Length, 0.15 mm Hose Wall $485 8 Weeks	100317446 Metal Wall Vacuum Hose, NW50 ISO-KF, 1000 mm Length, 0.15 mm Hose Wall	UNIVERSAL	1.0	NW50	39.40 in. (1000 mm)	26.30 in. (667 mm)	3.25 in.	2.9 lb/in.	8 Weeks	$485
100319805 Metal Wall Vacuum Hose, NW16 ISO-KF, 305 mm Length, 0.15 mm Hose Wall $134 5 Weeks	100319805 Metal Wall Vacuum Hose, NW16 ISO-KF, 305 mm Length, 0.15 mm Hose Wall	UNIVERSAL	1.0	NW16	12.02 in. (305 mm)	7.82 in. (199 mm)	1.625 in.	21 lb/in.	5 Weeks	$134
100319806 Metal Wall Vacuum Hose, NW25 ISO-KF, 305 mm Length, 0.15 mm Hose Wall $134 7 Weeks	100319806 Metal Wall Vacuum Hose, NW25 ISO-KF, 305 mm Length, 0.15 mm Hose Wall	UNIVERSAL	1.0	NW25	11.99 in. (305 mm)	7.82 in. (199 mm)	1.375 in.	14 lb/in.	7 Weeks	$134
100319807 Metal Wall Vacuum Hose, NW40 ISO-KF, 308 mm Length, 0.15 mm Hose Wall $188 1 Week	100319807 Metal Wall Vacuum Hose, NW40 ISO-KF, 308 mm Length, 0.15 mm Hose Wall	UNIVERSAL	1.0	NW40	12.12 in. (308 mm)	7.88 in. (200 mm)	2.5 in.	7 lb/in.	1 Week	$188
100319808 Metal Wall Vacuum Hose, NW16 ISO-KF, 612 mm Length, 0.15 mm Hose Wall $177 5 Weeks	100319808 Metal Wall Vacuum Hose, NW16 ISO-KF, 612 mm Length, 0.15 mm Hose Wall	UNIVERSAL	1.0	NW16	24.09 in. (612 mm)	18.12 in. (460 mm)	1.625 in.	9 lb/in.	5 Weeks	$177
100319809 Metal Wall Vacuum Hose, NW25 ISO-KF, 610 mm Length, 0.15 mm Hose Wall $200 7 Weeks	100319809 Metal Wall Vacuum Hose, NW25 ISO-KF, 610 mm Length, 0.15 mm Hose Wall	UNIVERSAL	1.0	NW25	24.00 in. (610 mm)	18.12 in. (460 mm)	1.375 in.	6.5 lb/in.	7 Weeks	$200
100319810 Metal Wall Vacuum Hose, NW40 ISO-KF, 611 mm Length, 0.15 mm Hose Wall $237 7 Weeks	100319810 Metal Wall Vacuum Hose, NW40 ISO-KF, 611 mm Length, 0.15 mm Hose Wall	UNIVERSAL	1.0	NW40	24.05 in. (611 mm)	18.12 in. (460 mm)	2.5 in.	3 lb/in.	7 Weeks	$237
100319811 Metal Wall Vacuum Hose, NW50 ISO-KF, 612 mm Length, 0.15 mm Hose Wall $255 4 Weeks	100319811 Metal Wall Vacuum Hose, NW50 ISO-KF, 612 mm Length, 0.15 mm Hose Wall	UNIVERSAL	1.0	NW50	24.08 in. (612 mm)	18.12 in. (460 mm)	3.25 in	5 lb/in.	4 Weeks	$255
100319817 Metal Wall Vacuum Hose, NW50 ISO-KF, 303 mm Length, 0.15 mm Hose Wall $214 4 Weeks	100319817 Metal Wall Vacuum Hose, NW50 ISO-KF, 303 mm Length, 0.15 mm Hose Wall	UNIVERSAL	1.0	NW50	11.93 in. (303 mm)	8.64 in. (219 mm)	3.25 in.	12 lb/in.	4 Weeks	$214

Notes:

Please see hose schematic for dimension callouts.

Features

Adjustable Length

Thin metal wall hose can be compressed to a reduced length to accommodate different spacings of ISO-KF vacuum connections.

ISO-KF Standard Interface Dimensions

The International Standards Organization (ISO) has defined the interface dimensions, allowing the interchanging of components that conform to the ISO-KF standard’s dimensions. The ISO-KF system is a modular, building block method of creating a vacuum 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. The Series 31 component line also includes a few components in NW 80 (3'') and NW 100 (4'') sizes. There is no international standard for these sizes in the KF style. MKS has designed the flanging using series consistencies and customer requirements.

Joining ISO-KF Flanges

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.

There are a variety of clamp choices in the Series 31 line. The wing-nut clamp is hand tightened until metal contact is felt. A version of the wing-nut clamp with a washer is also available. The toggle clamp is convenient and easy to use. The clamp provides enough sealing force to fully compress the O-Ring, so that the flanges and the centering ring are metal to metal. The heavy-duty spring supports the full range of production tolerance variables. The self-adjusting clamp locks in a positive method. A pin can be inserted to prevent accidental release of the toggle lever. The toggle clamps are ideal for situations where the clamp must be removed frequently, like leak testing or gauge calibration. The Series 31 ISO-KF line also includes bulkhead clamps. They are used to attach an ISO-KF flange directly to a chamber or base plate. The two-part, bolted clamp fits over the flange. A centering ring assembly is needed between the flange and the opening. The bulkhead clamp kit includes the two-piece clamp, bolts and washers.

Positive Pressure Applications

If system pressures are in the positive pressure range, it is recommended that over pressure rings are used. The ISO-KF over pressure rings are installed differently by size. The NW 16, 25, and 40 ISO-KF rings are installed over the two ISO-KF flanges. The NW 10 and 50 ISO-KF rings are installed between the two flange faces. The clamp is installed around all items to secure the assembly.

ISO-KF Pipe Fitting Applications

ISO-KF fittings can be used in a wide variety of applications including:

Roughing and foreline plumbing
Systems requiring frequent cleaning or modification
Research and teaching laboratories
Small systems

ISO-KF components are primarily designed for use at subatmospheric pressure. Because of the large number of elastomer seals used, typical limiting pressure without baking is about 10^-7 Torr. Baked systems using Viton® seals can be used to two decades lower.

ISO-KF Thin Wall Metal Vacuum Hose

ISO-KF Thin Wall Metal Vacuum Hose

Overview