valve manufacturer
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  check valve
  Tel: 86 - 574 - 8720 0715
  Fax: 86 - 574 - 5670 8367
  Email: sales@ningbo-valve.com
  Web: http://www.ningbo-valve.com
   

It is important to properly identify valves in service to allow for the ordering of replacement parts or address questions or concerns relating to our products. Body markings and information shown on the identification plate helps to properly identify valves, allowing timely and accurate responses to such inquiries.

The body markings are supplemented by identification plate which, depending on valve type and size, is mounted in the most practicable position. Tag location for butterfly and gate valves is typically on the valve yoke or body/bonnet flange. Check valve tags are typically mounted on the rim of the cap.
Identification plates bear the following information:

• NVF logo


sample

• Class
• Valve size
• "steel" symbol for the grade of material
(i.e. WCB for carbon steel)
• Heat number – on body and bonnet (cast or stamped)
• Individual serialization

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NVF was found in 1959, we are professional in manufacturing forged steel and cast steel valve, gate valve, globe valve, check valve, ball valve, butterfly valve, plug valve and so on.