Please explain the meanings of “Q” and “9” in the valve model ZQ549H
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Please explain the meanings of “Q” and “9” in the valve model ZQ549H. No relevant explanations could be found in the JB308 standard
Reply to 1# gw821022: You should ask the supplier; it’s usually they who determine the model specifications. In our factory as well, there are many model codes that cannot be found in the manuals.
It is not ruled out that it could be a result of an intentional error; the number 9 might refer to the structural format – an L-shaped three-way flow channel
Never seen this before. Could it be the casting (Z) yield strength (549)?
Reply to 3# luoheng116: This is a gate valve with bevel gear transmission!
Does ZQ mean cast ball valve? ?
Is the valve body made of cast ductile iron?
According to the regulations: the first letter should indicate the type of valve; Z stands for gate valve； The second letter indicates the valve opening method. What does Q stand for? 459 is also a way to represent the various components of a valve.
After that come the lining materials, engineering pressure, engineering diameter, etc.
If it’s a model created by the valve manufacturer itself, then looking up any information won’t be of any use. You should ask the valve’s actual manufacturer instead
This post was last edited by aqshhsq on 2011-2-21 at 12:43. Reply to 1# gw821022: Q indicates a spherical shape (gate valve); 9 indicates that the valve structure is of the double-spherical expansion type.