Pressure Reducing Valve and booster pump Flashcards
How does a pressure reducing valve work
Through pressure exerted by spring pressing on diaphragm
2 application for pressure reducing valves
Domestic line pressure to much
Pressure to great on down feed system
Why must a strainer be installed on the high pressure side of a orb
To stop dirt from becoming lodged between prv, seat and disc
Why might a series installation be necessary
The pressure might be to high for one valve
Why might a parallel installation of prv be necessary
Two smaller cheaper valves may be used instead of one large one
What is the most common type of booster pump
Centrifugal pump
What are booster pumps used for
Lifting water and increasing pressure
What sizes of booster pumps come in
1/4 hp-200 hp
In a combination upfeed/down feed system where will the take off be
Up stream of pump
Is a check valve required for a booster pump system
Yes
If a pump is constantly running what is required
A pressure relief valve
