what kind of valve we should chose to install automation & batching system
what kind of valve we should chose to install automation & batching system
(OP)
I am working in a chemical company and we decided to install automation & batching system for our production line that involve mixing 5 or 6 kind of liquid raw materials for making polyurethane product mainly.
we have installed load-cells on our agitator tanks and our raw material tanks to weigh them. the purpose is to pump the materials automatically to agitator tanks and stop the pump and close the valve by PLC programming by the feedback of the load-cells .please help me to chose the suitable valve for this project.each batch contain about 12 tons of material
we have installed load-cells on our agitator tanks and our raw material tanks to weigh them. the purpose is to pump the materials automatically to agitator tanks and stop the pump and close the valve by PLC programming by the feedback of the load-cells .please help me to chose the suitable valve for this project.each batch contain about 12 tons of material
RE: what kind of valve we should chose to install automation & batching system
All of the major valve types (e.g. gate, globe, butterfly etc) have advantages and disadvantages regarding operation, cost, maintenance and control of flow.
IMHO, the valve suitability for the particular process service is independent of the method of actuation (manual vs. automatic).
In other words, you should be selecting the same valve regardless of the method of valve control ....
MJCronin
Sr. Process Engineer
RE: what kind of valve we should chose to install automation & batching system
i.) Flow Throttling: Some valve types (globe/needle) allow for fine throttling of flow from 0-100%, others are more open OR closed with little ability to throttle flow.
ii.) Leakage: Some valves are more prone to leakage than others. How difficult is it for you to maintain your valves in-situ vs. how much leakage can you tolerate?
iii.) Fluid type: Do you need valves appropriate for food-grade fluids? Are you dealing with caustic chemicals? Some valves have seating materials that are not appropriate for all fluids?
iv.) What pipe code are you designed to?
RE: what kind of valve we should chose to install automation & batching system
https://www.dixonvalve.com/division/dixon-sanitary
RE: what kind of valve we should chose to install automation & batching system
We have a similar sounding application. Not sure how similar because of the lack of detail. But, we use a ball valve with actuator and positioner. The valve is used in three modes - open, "dribble" (~10% open, but this is adjustable for each valve), and closed. There is also preact for the drainage, but that is not dependent on the valve type.
Good luck,
Latexman
To a ChE, the glass is always full - 1/2 air and 1/2 water.
RE: what kind of valve we should chose to install automation & batching system
could you give me some more details about your experience usiung this kind of valve?
please tell me more about position
RE: what kind of valve we should chose to install automation & batching system
Good luck,
Latexman
To a ChE, the glass is always full - 1/2 air and 1/2 water.
RE: what kind of valve we should chose to install automation & batching system