Lowara e-SV 15SV17FL150T [257/264] Fl fl fl fl flow resist ow resist ow resist ow resist ow resistance ance ance ance ance tttttable of fl able of fl able of fl able of fl able of flow resist ow resis...

Lowara e-SV 3SV27FH030T [257/264] Fl fl fl fl flow resist ow resist ow resist ow resist ow resistance ance ance ance ance tttttable of fl able of fl able of fl able of fl able of flow resist ow resist ow resist ow resist ow resistance in bends v ance in bends v ance in bends v ance in bends v ance in bends val al al al alves and ves and ves and ves and ves and ga ga ga ga gates tes tes tes tes
257
TECHNICALTECHNICAL
TECHNICALTECHNICAL
TECHNICAL
APPENDIXAPPENDIX
APPENDIXAPPENDIX
APPENDIX
FLFL
FLFL
FL
OW RESISTOW RESIST
OW RESISTOW RESIST
OW RESIST
ANCEANCE
ANCEANCE
ANCE
TT
TT
T
ABLE OF FLABLE OF FL
ABLE OF FLABLE OF FL
ABLE OF FL
OW RESISTOW RESIST
OW RESISTOW RESIST
OW RESIST
ANCE IN BENDS, VANCE IN BENDS, V
ANCE IN BENDS, VANCE IN BENDS, V
ANCE IN BENDS, V
ALAL
ALAL
AL
VES ANDVES AND
VES ANDVES AND
VES AND
GAGA
GAGA
GA
TESTES
TESTES
TES
The flow resistance is calculated using the equivalent pipeline length method according to the table below:
The table is valid for the Hazen Williams coefficient C=100 (cast iron pipework);
for steel pipework, multiply the values by 1,41;
for stainless steel, copper and coated cast iron pipework, multiply the values by 1,85;
When the
equivalent pipeline length equivalent pipeline length
equivalent pipeline length equivalent pipeline length
equivalent pipeline length has been determined, the flow resistance is obtained from the table of
flow resistance.
The values given are guideline values which are bound to vary slightly according to the model, especially for gate
valves and non-return valves, for which it is a good idea to check the values supplied by manufacturers.
TABELLA LUNGHEZZA DI TUBAZIONE EQUIVALENTE
ACCESSORY
TYPE
25 32 40 50 65 80 100 125 150 200 250 300
45° bend 0,2 0,2 0,4 0,4 0,6 0,6 0,9 1,1 1,5 1,9 2,4 2,8
90° bend 0,4 0,6 0,9 1,1 1,3 1,5 2,1 2,6 3,0 3,9 4,7 5,8
90° smooth bend 0,4 0,4 0,4 0,6 0,9 1,1 1,3 1,7 1,9 2,8 3,4 3,9
Union tee or cross 1,1 1,3 1,7 2,1 2,6 3,2 4,3 5,3 6,4 7,5 10,7 12,8
Gate - - - 0,2 0,2 0,2 0,4 0,4 0,6 0,9 1,1 1,3
Non return valve 1,1 1,5 1,9 2,4 3,0 3,4 4,7 5,9 7,4 9,6 11,8 13,9
G-a-pcv-en_a_th
DN
Equivalent pipeline length (m)

Содержание

Похожие устройства

Скачать