Product Overview

ISO-KF NW10 Vacuum Flange Seal Assembly for High Vacuum and Foreline Service

Condition

Single unit available. Unused NOS condition with no issues noted during visual evaluation. Evaluation: Visual inspection only. Function testing not performed. Date code is 05-16-06. Item is clean, still sealed in bag, and shows no signs of degradation. Obtained from a government research facility and covered by our No Hassle PartsMine Guarantee.

Ships same business day from Idaho. Packed carefully.

Product Overview

MKS 100312700 is a centering ring seal assembly for ISO-KF NW10 vacuum systems. It uses a 304 stainless steel centering ring with a Viton O-ring to create a leak-tight seal between two NW10 flanges when used with a compatible clamp.

Key Features

Fits ISO-KF NW10 flanges
Viton FKM O-ring
304 stainless steel centering ring
Maximum temperature: 180 C
Vacuum range: atmosphere to 10^-7 Torr standard, down to 10^-9 Torr if baked
MKS Series 31 seal assembly

Applications

Semiconductor vacuum plumbing and chamber service
Mass spectrometer foreline and roughing line connections
Laboratory high vacuum systems using KF10 hardware
Vacuum leak repair on NW10 ISO-KF flange connections

Frequently Asked Questions

Will this fit NW16 or larger KF flanges?

No. This seal assembly is for ISO-KF NW10 flanges only. It will not fit NW16, NW25, or larger sizes.

What clamp is required to use this centering ring?

It requires two NW10 ISO-KF flanges and a matching KF10/16 wing-nut or toggle clamp.

Is the O-ring material Viton or Buna-N?

This model uses a Viton FKM O-ring.

Is this compatible with CF or ISO-K bolted flange systems?

No. It is not compatible with CF ConFlat or ISO-K bolted flange systems.

Good choice for buyers who need the NW10 Viton version with a 304 stainless centering ring. Verify flange size before ordering, since NW10 and NW16 can be confused in the field.