Norriseal valve sizing reference guide

Page 35

Table 21 - Flow Coefficients, CV, 2200/2220 Globe Body, Modified Percentage & Quick Opening, Unbalanced Plug Control Trims, Flow Up Body Size

1”

2”

Flow Coefficient (CV) Valve Opening - Percent of Total Travel

Trim Size 0.250” 0.375” 0.500” 0.750” 1.000” 0.250” 0.375” 0.500” 0.750” 1.000”

Modified Percentage 10 .284 .311 .557 .752 .983 .284 .311 .592 .882 1.01

20 .506 .621 1.11 1.57 2.01 .506 .621 1.17 1.76 2.02

30 .657 .942 1.68 2.43 3.40 .657 .942 1.76 2.76 3.08

40 .767 1.28 2.26 3.42 6.12 .767 1.28 2.34 3.82 4.67

50 .875 1.64 2.92 4.58 8.90 .875 1.64 2.95 5.05 6.96

60 .989 2.07 3.62 6.08 11.7 .989 2.07 3.70 6.57 10.3

70 1.10 2.51 4.30 7.93 13.5 1.10 2.51 4.57 8.49 13.7

80 1.20 2.93 4.98 9.71 14.4 1.20 2.93 5.50 10.8 15.4

90 1.32 3.35 5.43 10.6 15.1 1.32 3.35 5.95 12.2 16.7

100 1.43 3.70 5.60 11.0 15.4 1.43 3.70 6.08 12.9 17.1

Quick Open 100 1.68 3.82 5.60 11.6 15.4 1.68 3.75 6.08 13.0 23.0

Table 22 - Flow Coefficients, CV, 2275A Globe and Angle Bodies, Modified Percentage & Quick Opening, Unbalanced Plug Control Trims, Flow Up Globe Body Size

Trim Size

1’

0.062” 0.125” 0.250” 0.375” 0.500”

Angle Body Size

Trim Size

1’

0.062” 0.125” 0.250” 0.375” 0.500”

Flow Coefficient (CV) Valve Opening - Percent of Total Travel

100 .100 .407 1.36 3.45 5.22

Quick Open 100 .096 .446 1.40 3.51 5.90

100 .109 .415 1.34 3.52 6.18

Quick Open 100 .109 .421 1.38 3.59 6.20

Modified Percentage 10 .016 .050 .487 .724 .887

20 .026 .073 .588 .901 1.13

30 .033 .088 .617 1.04 1.82

40 .038 .111 .693 1.41 3.45

50 .043 .155 .802 2.27 4.24

60 .048 .258 .940 2.74 4.70

70 .058 .324 1.08 3.05 4.98

80 .072 .367 1.22 3.25 5.14

90 .086 .389 1.33 3.38 5.18

Flow Coefficient (CV) Valve Opening - Percent of Total Travel Modified Percentage 10 .010 .031 .505 .707 .725

20 .017 .046 .579 .978 1.15

30 .025 .068 .612 1.26 1.98

40 .034 .133 .659 1.53 3.05

50 .045 .204 .753 2.00 4.10

60 .055 .269 .885 2.48 5.11

70 .065 .328 1.01 2.92 5.70

80 .077 .377 1.14 3.23 5.93

90 .092 .402 1.27 3.44 6.08

//data/public/pdf/valve-sizing-maual.doc 35 of 43 Norriseal – P.O. Box 40525 Houston TX 77240-052–- Ph: (713) 466-3552, Fax: (713) 896-7386

10/10/2008


Turn static files into dynamic content formats.

Create a flipbook
Issuu converts static files into: digital portfolios, online yearbooks, online catalogs, digital photo albums and more. Sign up and create your flipbook.
Norriseal valve sizing reference guide by RMC Process Controls & Filtration, LLC. - Issuu