Engineering Section

Table of Contents

1. Selector Guide

2. Knife Gate Engineering Values

3. Knife Gate Dimensions

4. Full Port/ Metal Seated Vee-Orifice Flow Coefficients

5. Torque Values

6. Water and Lug Butterfly Data

7. Butterfly Stem Sizes & Torque Tables

8. Ball Valve Data

Knife Gate Selector Guide

Elite Valve Engineering Values
Valve Size inches / Port Area MxM / CV MxM / Port Dia R/S / CV R/S / Gate Thickness / Stem Diam / Stem Pitch / Steam Lead / # Turns Open Close / Thrust LBS 100 PSI / Turque @ 100 PSI Ft Lbs MxM / Handwheel pull LBS MxM / Leavers Packing / Cylinder Bore / Stroke Length / Valve Size / Bolt Dia / Qty / Blind Holes / Body / Total Bolts / Min Torque Value / Max Torque Value
3 / 3.14 / 162 / 1.8 / 2.54 / 131 / 0.3 / 3/4 / 1/6 / 1/3 / 7 / 412 / 4.33 / 13.83 / 3 / 0.5 / 3 / 5/8" - 11UNC / 2 / 2 / 0.31 / 4 / 32 / 38
4 / 3.54 / 182 / 1.8 / 2.54 / 131 / 0.3 / 3/4 / 1/6 / 1/3 / 8 / 479 / 5.03 / 16.07 / 3 / 0.5 / 4 / 5/8" - 11UNC / 2 / 2 / 0.35 / 4 / 32 / 38
6 / 7.66 / 394 / 3.55 / 6.16 / 316 / 0.3 / 3/4 / 1/6 / 1/3 / 10.5 / 622 / 6.53 / 20.86 / 3 / 0.5 / 6 / 5/8" - 11UNC / 6 / 2 / 0.35 / 8 / 32 / 38
8 / 11.04 / 566 / 3.55 / 9.9 / 508 / 0.3 / 3/4 / 1/6 / 1/3 / 12.2 / 885 / 9.89 / 29.68 / 3 / 0.5 / 8 / 3/4"10UNC / 6 / 2 / 0.38 / 8 / 56 / 65
10 / 18.66 / 958 / 5.45 / 9.9 / 508 / 0.3 / 3/4 / 1/6 / 1/3 / 16 / 1137 / 11.94 / 30.15 / 3 / 0.5 / 10 / 3/4"10UNC / 8 / 4 / 0.46 / 12 / 56 / 65
12 / 25.96 / 1332 / 7.825 / 13.33 / 1197 / 0.4 / 3/4 / 1/6 / 1/3 / 18 / 1388 / 14.57 / 36.79 / 3 / 0.5 / 12 / 7/8" - 9UNC / 8 / 4 / 0.6 / 12 / 56 / 65
14 / 45.66 / 2343 / 9.18 / 39.88 / 2046 / 0.4 / 1 / 1/5 / 2/5 / 19.5 / 2018 / 27.04 / 55.18 / 3 / 0.5 / 14 / 7/8" - 9UNC / 8 / 4 / 0.75 / 12 / 56 / 65
16 / 70.88 / 3637 / 10.8 / 66.19 / 3396 / 0.38 / 1 / 1/5 / 2/5 / 24.5 / 2554 / 34.22 / 66.34 / 4 / 0.5 / 16 / 1" - 8 UNC / 10 / 4 / 0.75 / 12 / 82 / 95
18 / 97.2 / 4987 / 17.44 / 91.6 / 4559 / 0.625 / 1 / 1/5 / 2/5 / 30 / 3248 / 43.52 / 69.84 / 4 / 0.5 / 18 / 1" - 8 UNC / 12 / 6 / 0.75 / 18 / 82 / 95
20 / 136.43 / 7012 / 14.95 / 121.46 / 6233 / 0.8 / 1 3/8 / 1/4 / 1/4 / 53 / 4183 / 59.82 / 91.19 / 4 / 0.5 / 20 / 1 1/8" - 7UNC / 12 / 6 / 0.75 / 16 / 117 / 135
24 / 189.91 / 9744 / 16.85 / 175.52 / 8986 / 0.8 / 1 3/8 / 1/4 / 1/4 / 64 / 5352 / 76.53 / 112.22 / 6 / 0.5 / 24 / 1 1/8" - 7UNC / 14 / 6 / 0.75 / 20 / 117 / 135
30 / 219.17 / 12290 / 18.75 / 223 / 11441 / 1 / 1 3/8 / 1/4 / 1/4 / 71 / 6537 / 93.48 / 116.66 / 5 / 0.5 / 30 / 1 1/4" - 7UNC / 20 / 6 / 0.75 / 20 / 165 / 190
36 / 294.05 / 15088 / 22.25 / 276.16 / 14167 / 1.25 / 1 3/4 / 1/4 / 1/4 / 79 / 7801 / 119.35 / 143.27 / 5 / 0.5 / 36 / 11/2" - 6UNC / 20 / 6 / 0.75 / 20 / 282 / 325
42 / 415.47 / 21317 / 27.2 / 388.82 / 19949 / 1.25 / 1 3/4 / 1/4 / 1/4 / 95 / 10325 / 180.69 / 183.63 / 5 / 42.5 / 42 / 11/2" - 6UNC / 24 / 6 / 0.75 / 20 / 282 / 325
Knife Gate Dimensions
Valve Size / Bolt Diameter / Bolt Length / Qty / per side / Stud Lenghts / Bolt Length / Total Bolt Qty / Min Torque Value / Max Torque Value
Blind Holes / Qty / Body
2" / 5/8" - 11UNC / 2.25 / 2 / 3.25" / 1.25" / 2 / 0.31 / 4 / 32 / 38
3" / 5/8" - 11UNC / 2.25 / 2 / 3.75" / 1.50" / 2 / 0.35 / 4 / 32 / 38
4" / 5/8" - 11UNC / 2.50 / 6 / 3.75" / 1.50" / 2 / 0.35 / 8 / 32 / 38
6" / 3/4"10UNC / 2.75 / 6 / 2.75" / 1.50" / 2 / 0.38 / 8 / 56 / 65
8" / 3/4"10UNC / 3.00 / 6 / 4.25" / 2.0" / 2 / 0.46 / 8 / 56 / 65
10" / 7/8" - 9UNC / 3.25 / 8 / 4.75" / 2.0" / 4 / 0.6 / 12 / 56 / 63
12" / 7/8" - 9UNC / 3.25 / 8 / 4.75" / 2.0" / 4 / 0.75 / 12 / 56 / 63
14" / 1" - 8 UNC / 3.50 / 8 / 5.25" / 2 1/8" / 4 / 0.75 / 12 / 82 / 95
16" / 1" - 8 UNC / 3.75 / 12 / 5.50" / 2 1/8" / 4 / 0.75 / 16 / 82 / 95
18" / 1 1/8" - 7UNC / 4.00 / 10 / 6.00" / 2.25" / 6 / 0.75 / 16 / 117 / 135
20" / 1 1/8" - 7UNC / 4.25 / 14 / 6.25" / 2.25" / 6 / 0.75 / 20 / 117 / 135
24"-30" / 1 1/4" - 7UNC / 4.50- 5.50 / 14 / 7.00" - 8.00" / 2.50" / 6 / 0.75 / 20 / 165 / 190
36" / 11/2" - 6UNC / 7.00 / 14 / 9.00" / 2.75" / 6 / 1 / 20 / 282 / 325
FULL PORT: Flow Coefficients (Cv)% OPEN
Valve Size / Percentage Open
10% / 20% / 30% / 40% / 50% / 60% / 70% / 80% / 90% / 100%
2" / 23 / 46 / 65 / 85 / 100 / 120 / 135 / 145 / 155 / 165
3" / 70 / 142 / 200 / 255 / 310 / 360 / 405 / 440 / 475 / 500
4" / 120 / 235 / 340 / 435 / 525 / 610 / 690 / 755 / 800 / 850
6" / 285 / 565 / 810 / 1025 / 1250 / 1460 / 1635 / 1795 / 1920 / 2020
8" / 505 / 1015 / 1440 / 1835 / 2240 / 2600 / 2920 / 3215 / 3430 / 3610
10" / 810 / 1615 / 2310 / 2950 / 3590 / 4160 / 4680 / 5140 / 5490 / 5780
12" / 1290 / 2565 / 3670 / 4675 / 5690 / 6610 / 7430 / 8175 / 8720 / 9180
14" / 1485 / 2965 / 4240 / 5410 / 6570 / 7630 / 8565 / 9410 / 10090 / 10600
16" / 2140 / 4275 / 6120 / 7800 / 9460 / 11035 / 12425 / 13630 / 14560 / 15300
18" / 2805 / 5600 / 8000 / 10185 / 12430 / 14390 / 16170 / 17760 / 18970 / 20000
20" / 2640 / 7260 / 10370 / 13250 / 16030 / 18620 / 21020 / 23040 / 24670 / 26000
24" / 5390 / 10760 / 15420 / 19590 / 23860 / 27700 / 31320 / 32240 / 36570 / 38200
30" / 8330 / 16700 / 23800 / 30300 / 36800 / 42800 / 48190 / 52900 / 56500 / 59680
36" / 12550 / 25110 / 35930 / 45780 / 55700 / 64700 / 72700 / 79980 / 85390 / 89900
METAL SEATED VEE-ORIFICE Flow Coefficients (Cv)% OPEN
Valve Size / CV Values
10% / 20% / 30% / 40% / 50% / 60% / 70% / 80% / 90% / 100%
2" / 1.3 / 4 / 9 / 14 / 22 / 32 / 40 / 50 / 58 / 64
3" / 3.7 / 12 / 24 / 42 / 65 / 91 / 116 / 145 / 168 / 185
4" / 7.2 / 23 / 47 / 83 / 126 / 177 / 228 / 282 / 329 / 362
6" / 16 / 53 / 107 / 186 / 283 / 401 / 515 / 636 / 739 / 815
8" / 32 / 105 / 203 / 356 / 539 / 765 / 981 / 1209 / 1416 / 1555
10" / 50 / 164 / 329 / 852 / 886 / 1244 / 1593 / 1975 / 2302 / 2531
12" / 75 / 243 / 487 / 861 / 1312 / 1835 / 2360 / 2918 / 3411 / 3744
14" / 101 / 319 / 651 / 1160 / 1753 / 2449 / 3150 / 3908 / 4549 / 5000
16" / 133 / 422 / 868 / 1546 / 2336 / 3259 / 4196 / 5200 / 6068 / 6657
18" / 161 / 538 / 1048 / 1858 / 2821 / 3951 / 5085 / 6285 / 7338 / 8055
20" / 201 / 661 / 1298 / 2295 / 3501 / 4898 / 6291 / 7798 / 9091 / 9989
24" / 294 / 989 / 1932 / 3408 / 5191 / 7261 / 9330 / 11576 / 13441 / 14811
TORQUE VALUES
Valve Size / Bolt Diameter / Qty / Bolt Length / Lug Holes bolt length / Total Bolt QTY / Min Torque Value / Max Torque Value
Blind Holes / Qty / Hole depth
2" / 5/8" -11 UNC / 2 / 1.25" / 2 / 0.31 / 4 / 32 / 38
3" / 5/8" -11 UNC / 2 / 1.50" / 2 / 0.35 / 4 / 32 / 38
4" / 5/8" -11 UNC / 6 / 1.50" / 2 / 0.35 / 8 / 32 / 38
6" / 3/4"-10 UNC / 6 / 1.50" / 2 / 0.38 / 8 / 56 / 65
8" / 3/4"-10 UNC / 6 / 2.0" / 2 / 0.46 / 8 / 56 / 65
10" / 7/8"-9 UNC / 8 / 2.0" / 4 / 0.6 / 3 / 12 / 56 / 63
12" / 7/8"-9 UNC / 8 / 2.0" / 4 / 0.75 / 12 / 56 / 63
14" / 1"- 8 UNC / 8 / 2 1/8" / 4 / 0.75 / 12 / 82 / 95
16" / 1"- 8 UNC / 12 / 2 1/8" / 4 / 0.75 / 16 / 82 / 95
18" / 1 1/8"-7 UNC / 10 / 2.25" / 6 / 0.75 / 16 / 117 / 135
20" / 1 1/8"-7 UNC / 14 / 2.25" / 6 / 0.75 / 20 / 117 / 135
24"- 30" / 11/4"-7 UNC / 14 / 2.50" / 6 / 0.75 / 20 / 165 / 190
36" / 11/2"-6 UNC / 14 / 2.75" / 6 / 1 / 20 / 282 / 325
Note: Torque values are shown in foot/ lbs. Caution should be used when torquing the blinds body bolts. Over tightening, will cause deflection in the body, resulting in increased operational thurst & possible scoring of the gate.
Water and Lug Butterfly Data
E8500 & E8400
Valve Size / 2 / 2 1/2 / 3 / 4 / 6 / 8 / 10 / 12 / 14 / 16 / 18 / 20 / 24
Cv / 230 / 288 / 325 / 432 / 880 / 1180 / 1980 / 3360 / 3910 / 4734 / 5558 / 6382 / 8030
Weight in lbs ( Bare Stem)
8500 (lbs) / 11 / 13 / 14 / 20 / 28.4 / 41.6 / 84 / 119 / 154 / 242 / 295 / 484 / 682
8400 (lbs) / 8 / 9 / 10 / 13 / 20 / 33 / 63 / 95 / 108 / 200 / 242 / 352 / 532
Torque Values (In/ lbs) Below 150 PSI Differential
EPDM & BUNA / 115 / 160 / 221 / 398 / 938 / 1867 / 3346 / 5275 / 6700 / 8975 / 12657 / 17029 / 26809
Teflon Coated / 124 / 142 / 195 / 283 / 655 / 947 / 2027 / 2514 / Consult Factory
Butterfly Stem Sizes and Torques
Valve Size / ISO Mount / Stem / Torque
2 / F05 / .433" (11mm) / 140 in/lbs
2 1/2 / F05 / .551 (11mm) / 180in/lbs
3 / F05 / .551 (11mm) / 220
4 / F07 / .670 (14mm) / 330
6 / F07 / .670 (14mm) / 740
8 / F10 / .866 (22mm) / 1100
10 / F10 / .866 (22mm) / 2300
12 / F12 / 1.063 (27mm) / 3000
Butterfly Valve Torque Table
Size / Torque Valve (N.M.) / Bare Stem BFV Weight (KG)
EPDM Seat / PTFE Seat / Wafer / Lug
2" / 13 / 15 / 3.5 / 5
2.5" / 18 / 21 / 4 / 6
3" / 25 / 30 / 4.5 / 6.5
4" / 45 / 54 / 6 / 9
5" / 72 / 86 / 7 / 10.5
6" / 106 / 127 / 9 / 12.5
8" / 211 / 253 / 15 / 18.5
10" / 378 / 453 / 28 / 38
12" / 595 / 714 / 43 / 54
14" / 757 / 908 / 49 / 70
16" / 1014 / 1217 / 91 / 110
18" / 1430 / 1716 / 110 / 134
20" / 1924 / 2309 / 160 / 220
24" / 3029 / 3635 / 242 / 310
1. 2" - 8" handle operated
2. 10" - 24" gear operated
3. Torques are all under 150PSI
* 1 N.M = 8.8507 "lb.
Ball Valve Data
Torque Values
Model / E1500 / E3100 / 3100SC / E9100 / E9200
Size / Torque / Cv / Torque / Cv / Torque / Cv / Torque / Cv / Torque / Cv
1/4" / 30 / 9 / 30 / 9 / 43 / 9 / N/A
3/8" / 35 / 9 / 30 / 9 / 43 / 9
1/2" / 38 / 15 / 60 / 15 / 85 / 15 / 90 / 9 / 132 / 19
3/4" / 60 / 50 / 101 / 50 / 143 / 50 / 120 / 19 / 162 / 37
1" / 80 / 60 / 125 / 60 / 178 / 60 / 170 / 45 / 167 / 50
1 1/4" / 140 / 110 / 187 / 110 / 266 / 110 / N/A
1 1/2" / 225 / 130 / 255 / 130 / 362 / 130 / 531 / 125 / 518 / 270
2 / 270 / 360 / 440 / 360 / 625 / 360 / 636 / 165 / 633 / 480
3 / 750 / 450 / N/A / 1575 / 350 / 1465 / 1300
4 / N/A / 1858 / 550 / 1850 / 2300
6 / N/A / 3696 / 5400
8 / 4092 / 10000
10 / 5280 / 16000
12 / 5940 / 24000
Note: For Gen II Series E3100 valves add 30% to published torque valves
Cv Values
E3300 Threaded End / E9300 Flanged
Size / Cv Valve / Weight / Torque / Cv Valve / Weight / Torque
T Port / L Port / T Port / L Port
1/2" / 15 / 6 / 1.5 / 90 / N/A
3/4" / 30 / 8 / 2.7 / 130
1" / 43 / 11 / 3.75 / 250 / 30 / 24 / 127
1 1/4" / 48 / 32 / 5.53 / 312 / N/A
1 1/2" / 84 / 65 / 8 / 437 / 68 / 37 / 28 / 272
2" / 112 / 108 / 12.6 / 625 / 153 / 85 / 48 / 437
3" / N/A / 367 / 201 / 88 / 1065
4" / 662 / 369 / 155 / 1875
6" / 1575 / 866 / 273 / 4218