Cv Values for Hygienic Spray Deflectors
Cv values are provided for both airflow out of the tank (Venting Out) and for airflow into tank (Venting In). Values are valid for air at sub-critical flow velocities. Sub-Critical Flow when P 1 < 2 x P 2
Cv (Venting Out)
Cv (Venting In)
Connection Size
2.0" 3.0" 4.0"
53
60
102
223
188
212
(P 1 2 - P 2 2 ) (S.G. x T)
Q G =
962 x Cv
QG = Gas Flow in Standard Cubic Feet per Hour T = Absolute temperature in °R (°F + 460) P1 = Upstream (Inlet) pressure in psia P2 = Downstream (Outlet) pressure in psia psia = Absolute pressure. This is psig (gauge pressure) plus 14.7 (atmospheric pressure) S.G. = Specific Gravity of medium where air at 70 °F and 14.7 psia = 1.0
Hygienic Spray Deflector - Venting Out
Hygienic Spray Deflector - Venting In
126
sanimatic.com
Powered by FlippingBook