JB/T 11520-2013Check Valve for Refrigeration Equipment (English PDF)

JB/T 11520-2013 is the English-translated version of 制冷设备用单向阀.

JB/T 11520-2013 is a recommended Chinese machinery industry standard for the check valve used in refrigeration equipment, a component its own text calls the check valve throughout. It opens with the terms and definitions and with the types and basic parameters of the valve. It then sets the requirements placed on it, the test methods by which those requirements are checked, and the inspection rules. The last part of the document covers marking, packaging, transport and storage. Among the standards it quotes are GB/T 191 and GB/T 6283. The standard carries Chinese classification J73 and international classification 27.200, and it was issued by the Ministry of Industry and Information Technology.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

JB/T 11522-2013|JB/T 12002-2014|GB/T 12235-2025|GB/T 12236-2025|NB/T 20168-2012|GB/T 1853-2008

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.