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Control valve sizing calculation.
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Metod1 - Liquid
Proraun KvProraun CvSI merne jediniceUS Customary UnitsMaksimalan protok:Protok , q45.42m3/h200.0gpmPad pritiska kroz ventil, p1-p21.379bar20.0psiMinimalan protok:Protok , q11.36m3/h50.0gpmPad pritiska kroz ventil, p1-p2 2.758bar40.0psi
Relativna gustina tenosti na radnim uslovima, Gf0.95010.9501
Maksimalan protok:Kv/Cv37.70m3/(hbar0,5)43.59gpm/psi0,5Minimalan protok:0.8649779541Kv/Cv6.67m3/(hbar0,5)7.71gpm/psi0,5
Maksimalna vrednost koeficijenta proticanjaKv,max/Cv,max47.13m3/(hbar0,5)54.49gpm/psi0,5
Tip ventilaCage valve, Full trimNominalni prenik ventila3''Tabela 5Kv/Cv56.22m3/(hbar0,5)65.00gpm/psi0,5Tabela 5
(Kv/Kv,min.protok)/(Cv/Cv,min. protok)8.44Regulacioni opseg10Tabela 6
Kv/Cv odabranog ventilaKoeficijent proticanja je odgovarajuiRegulacioni opseg odabranog ventilaRegulacioni opseg je odgovarajui
Metod2 - gas
Proraun KvProraun CvSI merne jediniceUS Customary UnitsMaksimalan protok:Protok , q4300Sm3/h152146scfh2535.7673333333Pad pritiska kroz ventil, p1-p20.400bar5.8psiPritisak pre regulacionog ventila, p10.50barg21.9psiaMinimalan protok:Protok , q4300m3/h152146scfhPad pritiska kroz ventil, p1-p2 0.400bar5.8psiPritisak pre regulacionog ventila, p10.50barg21.9psia
Temperatura pre regulacionog ventila, T19.823C509.4RMolekulska masa, M34.27g/mol34.27g/molk = Cp/Cv1.431.43Z - faktor kompresibilnosti0.990.99
INFOPotrebna je posebna procedura prorauna.
Nominalni prenik ventila4"Tip ventilaSegmented BallxT0.7Tabela 5kxT/1,400.71
Maksimalna protokx0.264x usvojeno0.264Y0.876Minimalan protokx0.264x usvojeno0.264Y0.876
Maksimalan protok:Kv/Cv237.56m3/(hbar0,5)276.17gpm/psi0,5Minimalan protok:Kv/Cv237.56m3/(hbar0,5)276.17gpm/psi0,5
Maksimalna vrednost koeficijenta proticanjaKv,max/Cv,max296.95m3/(hbar0,5)345.21gpm/psi0,5
Kv/Cv475.74m3/(hbar0,5)550.00gpm/psi0,5Tabela 5
(Kv/Kv,min.protok)/(Cv/Cv,min. protok)2.00Regulacioni opseg12Tabela 6
Kv/Cv odabranog ventilaKoeficijent proticanja je odgovarajuiRegulacioni opseg odabranog ventilaRegulacioni opseg je odgovarajui
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