Centrifugal Pumps And Packing Flashcards
How are packing rings supposed to be cut?
At an angle leaving no gaps in the ring.
One of the oldest and most widely used seal is what?
Stuffing box
Where does the lantern ring need To be positioned?
Directly under the Inlet port
The most common type of non positive displacement pump…
Centrifugal
Centrifugal pumps may be classified as what?
Volute and diffuser both can be single or multistage
What is injected into the stuffing box?
Flush water
3 things that flush water does?
- Cools shaft
- Keeps the packing moist
- Flushes contaminants
2 impeller configurations?
Over hung and between the bearings
2 types of seals?
Compression packing and mechanical seal
3 types of impeller styles?
Enclosed, semi open and open
What are the components of a stuffing box?
Gland follower
Rings of packing
Lantern ring
What is the meaning of head?
Height of a liquid
Two systems of pressure specification are used in pumps such as?
Psi and head
3 things that determine the capacity of a pump?
- Size of impeller
- Speed of impeller
- Viscosity of liquid
Formula to find pressure?
Head x .433 x 1
