Two machines on same branch line, Calculating duct resistance multiple dust ports – Grizzly Cyclone s G0440 User Manual
Page 34
"('"
BdYZa<%))%$<%))&B[\#H^cXZ%&$&'
Figure 47.
HiVi^XegZhhjgZadhhiVWaZh#
Duct
Dia.
Approximate
Static Pressure
Loss Per Foot of
Rigid Pipe
Approximate
Static Pressure
Loss Per Foot
of Flex Pipe
BV^c
A^cZh
Vi(*%%
;EB
7gVcX]
A^cZh
Vi)%%%
;EB
BV^c
A^cZh
Vi(*%%
;EB
7gVcX]
A^cZh
Vi)%%%
;EB
'
%#%.&
%#&''
%#(*
%#)*(
'#*
%#%-
%#&%,
%#(%+
%#(.,
(
%#%,&
%#%.)
%#',&
%#(*'
)
%#%*,
%#%,*
%#'&*
%#'-
*
%#%)+
%#%*.
%#&,'
%#''*
+
%#%(,
%#%),
%#&(+
%#&-
,
%#%'.
%#%(+
%#&%+
%#&)&
-
%#%'(
%#%',
%#%-
%#&%-
.
%#%&,
%#%&.
%#%*,
%#%,.
Fitting
Dia.
90˚
Elbow
45˚
Elbow
45˚
Wye(Y)
90˚
Wye(Y)
(
%#),
%#'(*
%#'-'
%#&--
)
%#)*
%#''*
%#(,*
%#''*
*
%#*(&
%#'++
%#(*)
%#'(+
+
%#*+)
%#'-'
%#('.
%#'(*
,
%#)+-
%#'()
%#(')
%#'&+
-
%#)%*
%#'%(
%#'.,
%#&-.
>cbdhihbVaa$bZY^jbh]deh^i^hdcancZXZhhVgn
idXVaXjaViZi]Za^cZl^i]i]Zadc\ZhiYjXiaZc\i]dg
i]Zbdhi[^ii^c\hdeZgVi^c\jcYZgi]ZVhhjbei^dc
i]Vi^[i]Za^cZl^i]i]Z]^\]ZhigZh^hiVcXZldg`h!
i]Zdi]Zghl^aaWZ[^cZ#
To calculate the static pressure of any given
line in the system, follow these steps:
1.
BV`Z V a^hi d[ ZVX] h^oZ YjXi ^c i]Z a^cZ!
^cXajY^c\i]ZaZc\i]!VcYbjai^eani]dhZcjb"
WZghWni]ZhiVi^XegZhhjgZkVajZ\^kZc^ci]Z
egZk^djhiVWaZ#
2.
A^hiZVX]ineZd[ZaWdldgWgVcX]VcYbjai^ean
i]Z fjVci^in ^[ bdgZ i]Vc dcZ Wn i]Z hiVi^X
egZhhjgZadhh\^kZc^ci]ZegZk^djhiVWaZ#
Two Machines on Same Branch Line
Total CFM
Branch Line Size
)%%
)
*%%
)
+%%
*
,%%
*
-%%
+
.%%
+
&%%%
+
6YY^c\ YjXi ldg`! ZaWdlh! WgVcX]Zh VcY Vcn
di]ZgXdbedcZcihidVYjXia^cZ^cXgZVhZhV^g[adl
gZh^hiVcXZ hiVi^X egZhhjgZ adhh# I]^h gZh^hiVcXZ
XVcWZb^c^b^oZYWnjh^c\g^\^Yhbddi]e^eZVcY
\gVYjVa XjgkZh! Vh deedhZY id [aZm^WaZ e^eZ VcY
.%ßZaWdlh#
Id ]Zae ndj i]^c` VWdji i]^h gZh^hiVcXZ! ^bV\^cZ
g^Y^c\VW^XnXaZ^cVijccZai]Vi^hVcZmVXigZea^XV
d[ndjgYjXildg`#>[i]Z^ch^YZd[i]ZijccZa^hkZgn
Wjben[aZm^WaZe^eZVcY]VhVadid[h]Vgeijgch
.%ßZaWdlh!^il^aaiV`ZVadibdgZZ[[dgiidigVkZa
[gdbdcZZcYidi]Zdi]Zg#
I]Z ejgedhZ d[ XVaXjaVi^c\ i]Z gZh^hiVcXZ ^h id
YZiZgb^cZ^[^i^hadlZcdj\][gdbi]ZbVX]^cZid
i]ZYjhiXdaaZXidgidbZZii]Z\^kZc8;BgZfj^gZ"
bZci[dgi]ZbVX]^cZ#JhZi]Z[daadl^c\iVWaZhid
XVaXjaViZi]ZgZh^hiVcXZd[YjXildg`#
Calculating Duct Resistance
Multiple Dust Ports
>[ ndjg bVX]^cZ ]Vh bjai^eaZ Yjhi edgih! VYY i]Z
idiVa8;B\^kZc[dgZVX]Yjhiedgih^oZ[gdb i]Z
iVWaZjcYZgStep 4 Veegdm^bViZgZfj^gZYV^g[adl
dc i]Z egZk^djh eV\Z# GZ[Zg id i]Z Table WZadl
VcY [^cY i]Z 8;B i]Vi ^h XadhZhi id ndjg idiVa
id YZiZgb^cZ i]Z XdggZXi WgVcX] h^oZ# Hea^i i]Z
WgVcX]a^cZ_jhiWZ[dgZi]ZYjhiedgihl^i]bViX]"
^c\YjXih^oZh#
>[ Wdi] bVX]^cZh l^aa gjc Vi i]Z hVbZ i^bZ! VYY
i]Z idiVa 8;B \^kZc [dg ZVX] h^oZ [gdb i]Z iVWaZ
Veegdm^bViZ gZfj^gZY V^g[adl jcYZgStep 4 VcY
bViX]i]ZWgVcX]a^cZ\^kZcWZadl#
>[Wdi]bVX]^cZhl^aacZkZggjcVii]ZhVbZi^bZ!
gZ[ZgZcXZi]ZbVX]^cZl^i]i]ZW^\\ZhiYjhiedgi
^ci]ZTable WZadlVcYVYYWaVhi\ViZhV[iZgi]Z
N"WgVcX]iddeZc$XadhZi]Za^cZidZVX]bVX]^cZ#