391
Dixon Sanitary 2014
800.789.1718
Technical
BHP
Brake Horsepower. The actual amount of horsepower being consumed by the pump as measured on a pony brake or
dynamometer. This is not the horsepower used by the motor or driver.
Bioprocessing
the creation of a product utilizing a living organism
Bioprocessing Equipment
equipment, systems or facilities used in the creation of products utilizing living organisms
Bevel Seat Ferrules
A set of plain (male) and externally threaded (female) bushings with matching bevel angles that
produce a leak-proof seal when connected with a hex union nut. The threads used are Acme form.
Bright Anneal
Annealing in a protective medium to prevent scaling and discoloration of the surface.
Bright Annealed Finish
A silvery satin surface, approximating the mill finish of stainless steel.
Buna
Synthetic rubber, a copolymer of acrylonitrile and butadiene.
Burst Pressure
The pressure at which rupture occurs.
CCW
Counter clockwise
C-Face/Frame
The NEMA standard for motor mounting dimensions.
C
v
The flow rate (in US gal/min) of pure water at 60°F passing through a valve when the valve is fully opened and the pressure
differential between the two ends of the valve is 1 PSI.
•
V = max. flow (in US gal/min)
•
G = specific gravity (1 for water)
•
P1 = inlet side pressure (psi)
•
P2 = outlet side pressure (psi)
CW
Clockwise
Capacity
Flow rate normally measured in gallons per minute (GPM).
Carbon/Graphite
A common mechanical seal face material chemically inert to most fluids with the exception of oxidizers,
bleaches, halogens and a few other fluids.
Cavitation
When the NPSH required by the pump is greater than the NPSH available in the system, cavitation
occurs. Vapor is formed and moves along with the stream. These vapor bubbles or “cavities” collapse when they reach regions
of higher pressure on their way through the pump cavities are forming in the liquid being pumped. When these cavities form at
the suction of the pump several things happen all at once:
•
Loss in capacity.
•
Loss of head (pressure).
•
The efficiency drops.
•
The cavities or bubbles will collapse when they pass into the higher regions of pressure causing noise, vibration and
damage to many of the components.
Centipoise
Metric unit of viscosity
Glossary of Terms
Y