| Term |
Explanation |
| Basic
flow rate |
An SGS search criterion. If a tolerance
is also entered, a search can be made
within a range centered on this flow
rate value. In addition, if 0 is selected
for this tolerance, and there is a
flow rate value in the database that
matches the basic flow rate, a pinpoint
search will result. |
| Basic
pressure |
An SGS search criterion. If a tolerance is also entered, a search can be made within a range centered on this pressure value. In addition, if 0 is selected for this tolerance, and there is a pressure value in the database that matches the basic pressure, a pinpoint search will result. |
| Basic
spray angle |
An SGS search criterion. If a tolerance is also entered, a search can be made within a range centered on this spray angle value. In addition, if 0 is entered for this tolerance, and there is a spray angle value in the database that matches the basic spray angle, a pinpoint search will result. |
| Body
color |
The
color of the material, given for product
classification purposes, in the nozzle
manufacturer's catalog (mainly refers
to products made of plastic). Colors
are not shown for nozzles made of
metal. |
| Catalog
language |
The
language (generally English, Japanese,
etc) of the product catalog page image
(pdf) that will be displayed by the
SGS with a nozzle's detailed specifications.
The language is indicated with an
abbreviation in the table of search
results. |
| Connection |
The
type and size of the junction, by
means of which feed pipe is connected
to the body of the nozzle. The methods
of connection are mainly thread and
flange, and the size of the connection
varies depending on the spray flow
rate. |
| Converted
spray angle |
Spray
angle calculated on the basis of spray
distance and spray width values. |
| Converted
unit value |
This
is an equivalent value in a unit of
measurement that has been converted
from any of the other (main, technical)
units of measurement that are commonly
used for pressure, flow rate etc,
in the nozzle manufacturer's catalog.
'Converted unit value' refers to this
value as calculated by an SGS function
that allows units to be converted
to a common unit of your choice. |
| Flow
rate |
In
most cases this is the flow rate for
a single liquid or gas that is sprayed
from the nozzle orifice. |
| Free
passage diameter |
In
principle, the free passage diameter
is the dimension of the narrowest
part of the channel inside the nozzle.
This dimension is compared with the
dimensions of foreign matter that
may be contained in the fluid, and
it is used as a criterion for preventing
clogging within the nozzle. Please
note that the orifice diameter and
the free passage diameter differ depending
on the type of nozzle. |
| Gas
flow rate |
In
most cases this is the gas spray flow
rate for nozzles that spray two mixed
fluids, a liquid and gas. Since this
unit may differ from that used in
the nozzle manufacturer's catalog,
the SGS provides a function that allows
units to be converted to a common
unit of your choice for displaying
search results. |
| Gas
pressure |
In
most cases this is the gas supply
pressure for nozzles that spray two
mixed fluids, a liquid and a gas.
Since the unit may differ from that
used in the nozzle manufacturer's
catalog, the SGS provides a function
that allows units to be converted
to a common unit of your choice for
displaying search results. |
| Inlet
direction/type |
Refers
to the direction from which the fluids
flow into the nozzle body. The inlet
direction is determined by the location
of the connection(s) in the nozzle
body, and may be indicated in relation
to the spray direction. |
| Liquid
flow rate |
In
most cases this is the liquid spray
flow rate for nozzles that spray two
mixed fluids, a liquid and a gas.
Since the unit may differ from that
used in the nozzle manufacturer's
catalog, SGS provides a function that
allows units to be converted to a
common unit of your choice for displaying
search results. |
| Liquid
pressure |
In
most cases this is the liquid supply
pressure for nozzles that spray two
mixed fluids, a liquid and gas. Since
this unit may differ from that used
in the nozzle manufacturer's catalog,
the SGS provides a function that allows
units to be converted to a common
unit of your choice for displaying
search results. |
| Manufacturer's
HQ |
The
name of the country in which a nozzle
manufacturer's headquarters is located.
The HQ is shown in the table of search
results. |
| Manufacturer's
model number |
This
is the unique rule-based identification
number assigned to each nozzle in
a nozzle manufacturer's catalog. The
model numbers shown in most nozzle
manufacturer's catalogs are basic,
and follow a set of rules for assembling
complete model numbers. Users themselves
add the symbols for the desired connection
size, material and so on to obtain
a complete model number. Each nozzle
manufacturer, however, has different
rules for model numbers, and as there
are also several rules within each
catalog, constructing a complete model
number has been a difficult task.
All nozzle model numbers registered
in the SGS are complete model numbers.
Therefore, the 'manufacturer's model
number' displayed in the search results
can be used without modification as
a complete model number. This term
means the same as the terms 'nozzle
model number', 'no abbreviation of
model numbers'. |
| Material
of manufacture (orifice) |
Generally,
a spray nozzle assembly is made up
of several components; these components
are manufactured from various different
materials. In the context of SGS,
the material used for the orifice
is the most important of these parts
and is, therefore, that to which the
term 'material of manufacture' refers
for search and reference purposes. |
| No
abbreviation of model numbers |
Please
refer to the term 'manufacturer's
model number'. |
| Nozzle
model number |
Please
refer to the term 'manufacturer's
model number'. |
| Nozzle
orifice |
The
hole in the nozzle body through which
the sprayed fluid is ejected. The
orifice is usually embedded in the
nozzle body. The orifice plays an
important part in determining the
flow rate, spray pattern and so on.
Orifices can be round, oblong and
so on. |
| Nozzle
specifications |
A
general term for the various technical
particulars of a nozzle: principally
pressure, flow rate, spray angle and
so on. |
| Nozzle/product
category |
The
method of classification for nozzles
according to the principal fluids
to be sprayed (such as liquid, liquid
+ gas and so on). |
| Orifice
diameter |
The
dimension of the hole from which the
sprayed fluid is ejected, as given
in the nozzle manufacturer's catalog.
The method of representing the dimensions
differ according to the nozzle manufacturer's
catalog and the type of nozzle. The
diameter is usually given for round
holes, and the length and breadth
(or just the breadth) is given for
oblong holes. |
| Pressure |
In
most cases this is the hydrostatic
pressure of fluids immediately before
entering the body of the nozzle. Please
note that this differs from the velocity
pressure after the fluid has left
the nozzle. |
| Product
name |
This
is the name by which the product is
known in the manufacturer's catalog. |
| Rated
heat resistance |
This
is the maximum ambient temperature
that the nozzle product can withstand
in its place of use, and/or the maximum
temperature of the fluid that can
be sprayed using this nozzle. The
SGS displays the temperature indicated
in the nozzle manufacturer's catalog. |
| Search
code no. |
A
special reference number associated
with every nozzle model number registered
in the SGS database. The search code
no. is important for identifying nozzles. |
| SGS
classification |
This
is the name that has been given to
a nozzle product specifically for
its registration in the SGS database.
Although products may be named differently
from manufacturer to manufacturer,
all are classified according to this
special SGS name. Therefore, please
note that the name used in the nozzle
manufacturer's catalog may not necessarily
match this name. |
| Similar
model |
All
nozzle specifications are registered
under a unique SGS system of classification.
A 'similar model' is a nozzle whose
specifications match the set of characteristics
attributed to a particular model number
when a search, based on model number
and a set of search criteria, is conducted.
Since not all specifications (corrosion,
abrasion resistance and the like)
are provided in every product catalog,
the models identified as being 'similar
models' may be similar only in certain
respects. |
| Spray
angle |
The
angle at which the sprayed fluid fans
out from the nozzle. In principle,
the SGS identifies nozzles by means
of a spray angle value taken at the
shortest practical distance from the
orifice (as indicated in the manufacturer's
catalog). When a nozzle is positioned
to spray downwards, the spray width
actually tapers off as the distance
from the orifice increases (like a
candle flame). Accordingly, spray
width calculated by using the spray
angle value displayed (within SGS
search results) may not match the
actual spray width. |
| Spray
distance |
The
distance to the target surface (measured
in a straight line from the tip of
the nozzle along the central axis
of the spray angle. |
| Spray
nozzle |
The
general term for nozzles used for
spraying fluids such as liquids and
gas. |
| Spray
pattern |
A
cross-section of the main body of
sprayed fluid as it disperses. Patterns
can be circular, bar-shaped etc. All
nozzles registered in the SGS database
are classified by spray pattern (determined
specifically for the SGS). Please
note that the name of the spray pattern
may not necessarily match that shown
in the nozzle manufacturer's catalog. |
| Spray
width |
This
figure represents the width/diameter
to which the sprayed fluid has fanned
out at a predetermined distance from
the orifice. When a nozzle is positioned
to spray downwards, the spray width
actually tapers off as the distance
from the orifice increases (like a
candle flame). Therefore, the spray
width that may be obtained based on
the spray angle value given in the
catalog may not match the actual spray
width. If both the spray distance
and spray width has been provided
in the nozzle manufacturer's catalog,
the values are converted into a spray
angle value by the SGS (owing to the
technical requirements of the search
program) and are registered in the
database. This value also appears
in the table of search results as
the spray angle for the displayed
nozzle. |
| Strainer |
When
fitted inside the body of the nozzle,
a strainer removes (by means of a
wire mesh) foreign particles contained
in the fluid. Thus preventing the
orifice from becoming clogged. Strainers
are used in nozzles with a very small
flow rates and comparatively small
orifices. |
| Valve
function |
This
refers to a valve incorporated into
the body of the nozzle. The most common
type, the check valve, is used to
control the flow by opening or closing
the channel in response to fluid pressure. |
| Weight
(unit or assembly) |
The
weight of one nozzle (or one nozzle
assembly) as shown in the nozzle manufacturer's
catalog. |
Nozzle Network Co., Ltd.
