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Maxon Valve sizing charts Datasheet

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Valve Technical Data - imperial
www.maxoncorp.com
combustion systems for industry
Maxon reserves the right to alter specifications and data without prior notice.
© 2011 Copyright Maxon Corporation. All rights reserved.
10 - 35.4 - 1
E-i- 11/11
Valve sizing charts
Approximate pressure drops for various valve sizes and flows may be determined by using this graph.
Key:
Q1 = Given Flow from Chart (scfh) Q2 = Flow (scfh)
ȴW1 = WƌĞƐƐƵƌĞƌŽƉĨƌŽŵŚĂƌƚ;ΗǁĐͿ ȴW2 = WƌĞƐƐƵƌĞƌŽƉ;ΗǁĐͿ
W1 = ϭϰ͘ϳƉƐŝĂ W2 = KƵƚůĞƚWƌĞƐƐƵƌĞ;ƉƐŝĂͿ
T1 = 70°F T2 = KƵƚůĞƚ&ůŽǁŝŶŐdĞŵƉĞƌĂƚƵƌĞ;Σ&Ϳ
S.G.1 = Ϭ͘ϲϱ;EĂƚƵƌĂů'ĂƐͿ S.G.2 = ^ƉĞĐŝĨŝĐŐƌĂǀŝƚLJŽĨŐĂƐǁŚĞŶƌĞůĂƚĞĚƚŽĂŝƌĂƚϳϬΣ&ĂŶĚϭϰ͘ϳƉƐŝĂ;ŝƌсϭ͘ϬͿ
0.1
1
10
100
100 1000 10000 100000 1000000
ǻP (inches of H2O)
Flow (scfh) - Natural Gas (s.g. = 0.65)
2
1
2
1
1
2
1
2
12
..
..
)67.459(
)67.459(
GS
GS
T
T
P
P
P
P
QQ u
uu
'
'
u
Valve Technical Data - metric
www.maxoncorp.com
combustion systems for industry
Maxon reserves the right to alter specifications and data without prior notice.
© 2011 Copyright Maxon Corporation. All rights reserved.
10 - 35.4 - 1
E-m-11/11
Valve sizing charts
Approximate pressure drops for various valve sizes and flows may be determined by using this graph.
Key:
Q
1
= Given Flow from Chart (m
3
(st)/h) Q
2
= Flow (m
3
(st)/h)
ȴW
1
= WƌĞƐƐƵƌĞƌŽƉĨƌŽŵŚĂƌƚ;ŵďĂƌͿ ȴW
2
= WƌĞƐƐƵƌĞƌŽƉ;ŵďĂƌͿ
W
1
= ϭďĂƌĂďƐŽůƵƚĞ W
2
= KƵƚůĞƚWƌĞƐƐƵƌĞ;ďĂƌĂďƐŽůƵƚĞͿ
T
1
= 21.1°C T
2
= KƵƚůĞƚ&ůŽǁŝŶŐdĞŵƉĞƌĂƚƵƌĞ;ΣͿ
S.G.
1
= Ϭ͘ϲϱ;EĂƚƵƌĂů'ĂƐͿ S.G.
2
= ^ƉĞĐŝĨŝĐŐƌĂǀŝƚLJŽĨŐĂƐǁŚĞŶƌĞůĂƚĞĚƚŽĂŝƌĂƚϳϬΣ&ĂŶĚϭϰ͘ϳƉƐŝĂ;ŝƌсϭ͘ϬͿ
1
10
100
10 100 1000 10000
ǻP (mbar)
Flow (m³(st)/h) -
Natural Gas (s.g. = 0.65)
2
1
2
1
1
2
1
2
12 ..
..
)273(
)273(
GS
GS
T
T
P
P
P
P
QQ u
uu
'
'
u
/