Laserfiche WebLink
GROOVED END ' • <br /> Flow Characteristics <br /> 1.2 <br /> �.Q� G1/" �n !��� Vn pn � <br /> 0 <br /> o= ��a �_ .� � --' <br /> W W o.s <br /> � ! I � <br /> y� I � i <br /> � ) __�. .� ___�J � <br /> W fA _d � <br /> a W �.6 � <br /> J a ��._ ....�r� i <br /> �z � �_�__ ._� � 9 <br /> O <br /> Z O O.4 _, _ � <br /> Z 0.2� � �� _�._ � �_._s r � f <br /> �e.�, �._�� <br /> o.o <br /> � j l_. - -- �_J f�r _..� _��1 <br /> 100 1,000 10,000 <br /> FLOW RATE IN GALLONS P92 MINUTE(GPM) <br /> WAFER AND GROOVED END <br /> Friction Loss <br /> Friction Loss in Friction Loss in <br /> Valve Size in. Equiv. Feet of Valve Size in. Equiv. Feet of <br /> Valve Model (mm) Pipe Valve Model (mm) Pipe <br /> DW(Wafer) 2%Z(65) 4.8 DG(Grooved) 2%:(65) 6.9 <br /> 3(76.2) 3.5 3(76.2) 4.1 <br /> 4(100) 2.4 4(100) 3 <br /> 6(150) 5.1 6(150) 5.5 <br /> 8(200) 5.4 8(200) 5.4 <br /> GROOVED END <br /> Flow coefficient : Cv <br /> Disk Open Angle <br /> DN (mm) SIZE(in) <br /> 30° 40° 50° 60° 70° 80° 90° <br /> 65 2'/2' 12 27.4 53.1 96 138 156 163 <br /> 80 3" 18.9 39.4 78.9 144 210 243 249 <br /> 100 4" 30 65.1 129 226 377 488 514 <br /> 150 6" 84 184 369 634 964 1196 1286 <br /> 200 8" 165 339 677 1230 2002 2850 3129 <br /> WAFER TYPE � <br /> Flow coefficient : Cv at full open <br /> DN (mm) 65 80 100 150 200 <br /> Size (in.) 2%Z' 3" 4" 6" 8" <br /> Cv 222 389 1000 1998 4619 <br /> Cv= tlow(9Pm) _ Q <br /> pressure loss(psi) �P <br /> AUGUST2006 Page6 BULLETIN BUTTERFLYREV#2 <br />