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Address: Wuxing Industrial Zone,Oubei,
Yongjia,Wenzhou,Zhejiang,China
Tel: 0086-577-67311296   67999566 
Fax: 0577-67999568
Zipcode: 325102
Websit: www.mingtaivalve.com 
E-Mail:sales@mingtaivalve.com

 
Home > Technical Support
Technical Support
 
 

Function and service considerations
 
Selection
Valves serve the purpose of controlling the fluids in building services piping. Valves are produced in a variety of design types and materials.
Proper selection is important to ensure the most efficient, cost-effective and long-lasting systems.
Function
Valves are designed to perform four principal functions:
1. Starting and stopping the flow
2. Regulating (throttling) the flow
3. Preventing reversal of the flow
4. Regulating or relieving the pressure of the flow
Service Considerations
1.      Pressure
2.      Temperature
3.      Type of fluid
a) Liquid
b) Gas; i.e., steam or air
   c) Dirty or abrasive (erosive)
d) Corrosive
4. Flow
a) On-off throttling
b) Need to prevent flow reversal
c) Concern for pressure drop
d) Velocity
5. Operating conditions
a) Condensation
b) Frequency of operation
c) Accessibility
d) Overall size/space available
e) Manual or automated control
f) Need for bubble-tight shut-off

 
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