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Your Authorized Swagelok Sales and Service Center in Vietnam

BN Series Pneumatically Actuated Bellows Valve Stem

BN Series Pneumatically

Change to BN Series Pneumatically Actuated Bellows Valve Stem – Notification of Change

In the spirit of continuous improvement, we are implementing a change to all pneumatically actuated BN series valve stems. The upper part of the stem shank will now be thicker, improving the customer’s ability to consistently install the retaining ring into the proper groove on the stem.

This change does not impact the function of the valve and will only be visually detectable during maintenance of the valve.This change will begin in the next 30 days. During the transition, you may see shipments of assembled valves and maintenance kits containing both versions of the stem until the existing stock is depleted.


For questions regarding this notice, please contact:

Ngoc Nguyen

Swagelok Vietnam QMR Assistant


Hotline: +84 936 42 0804