NB/T 20416-2017Design and manufacture standard for nuclear-grade metal bellows expansion joints for PWR nuclear power plants (English PDF)

NB/T 20416-2017 is the English-translated version of 压水堆核电厂核级金属波纹管膨胀节设计制造规范.

NB/T 20416-2017 is the Chinese energy industry standard for nuclear grade metal bellows expansion joints used in pressurized water reactor nuclear power plants, and it treats their design and their manufacture in one document.

Expansion joints of this kind take up the movement of piping and vessels caused by thermal expansion, and the nuclear grade qualification places them among the components subject to nuclear quality rules.

Unusually for this batch it is classified J33, with general machinery rather than with plant engineering. It cites the pressure vessel series GB 150.1-2011 to GB 150.4-2011, the general expansion joint standard GB/T 12777-2008, GB/T 13384, GB/T 17569, NB/T 20001, the seven parts of NB/T 20002 and the first three parts of NB/T 20003. Issued on 10 February 2017, it has applied since 1 July 2017.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 24 pages — is available in the English PDF.

GB/T 12777-2019|GB/T 35979-2018|GB/T 35990-2018|GB/T 16749-2018|GB/T 12522-2009|NB/T 20588-2021

1. 1

   Add to cart

   Click "Download PDF" on this page and choose "Buy this standard". You can add more standards before checkout.

2. 2

   Checkout

   Enter your email and billing details. Payment is processed securely by Stripe (cards or bank transfer). Prefer bank details? Request a quotation (min. order $300).

3. 3

   Instant delivery (0–9 sec)

   Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.

4. 4

   Invoice included

   A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.