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Dixon Sanitary 2016
800.789.1718
Technical
X
Glossary of Terms
Tumble Polish Surface
A uniform finish applied by vibratory equipment to stainless steel, varying from matte grey to
bright, depending on media used. This process may cause work hardening on the surfaces of
stainless steel.
Turbulent Flow
Irregular flow that is characterized by tiny whirlpool regions. The velocity of this fluid is definitely not
constant at every point.
Velocity Head (h
v
)
The energy of a liquid as a result of its motion at some velocity V. It is the equivalent head in feet
through which the water would have to fall to acquire the same velocity, or in other words, the head
necessary to accelerate the water. Velocity head can be calculated from the following formula:
V
2
h
v
= 2g
Where g = 32.3 ft/second
V = liquid velocity in feet per second
The velocity head is usually insignificant and can be ignored in most high head systems. However, it
can be a large factor and must be considered in low head systems
WOG
Water, Oil, Gas. Pressure rating for valves handling these products. This does not include steam.
Welding
Join two (or more) pieces of material by applying heat to produce a localized union through fusion across the
interface. For sanitary fittings, a ferrule is attached to the ends of a tube fitting by TIG welding without the addition of
filler metal.
Work (Strain) Hardening
An increase in hardness and strength caused by plastic deformation at temperatures below
the annealing ranges.
Tygon
®
is a registered trademark of Saint-Gobain Corporation.
Santoprene
™
is a trademark of Exxon Mobil Chemical
Tuf-Steel
®
is a registered trademark of RubberFab Technologies Group
Trademarks