Bray 40, 41 User Manual

CONTROLS

A Division of BRAY INTERNATIONAL, Inc.

Bray/McCannalok Butterﬂy Valves

Technical Manual

TM1023 - 09/25/2013

Bray/McCannalok Butterﬂy Valves

Technical Manual - Table of Contents

Topic Page(s)

Seating & Unseating Torques .........................3

Imperial (Lb-Ins) ...............................................4-6

Metric (N-m) ....................................................7-9

Dynamic Torque ................................................ 10-13

Maximum Shaft Torques (Lb-Ins) ...................14

Maximum Shaft Torques (N-m) ...................... 15

Valve Sizing Coefﬁcients ..............................16

Imperial (Cv) ....................................................17-18

Metric (Kv) .......................................................19-20

Pressure & Temperature Rating (ºF & ºC)

With PTFE Seats ...............................................21

With RTFE Seats ...............................................22

Flange to Valve Bolting Guide ........................23

All statements, technical information, and recommendations in this bulletin are for general use only.

Consult Bray representatives or factory for the specic

requirements and material selection for your intended application. The right to change or modify product design or product without prior notice is reserved.

Bray/McCannalok HPBV – Seating & Unseating Torques

FLOW

Seat Retainer

DOWNSTREAM

Seating & Unseating Torques:

Valve orientation to the ﬂow of media affects the torque.

Torque values are presented in two categories:

FLOW

Seat Retainer

UPSTREAM

FLOW

Seat Retainer

DOWNSTREAM

Torque : 3

All information herein is proprietary and condential and may not be copied or reproduced without the expressed written consent of BRAY INTERNATIONAL, Inc. The technical data herein is for general information only. Product suitability should be based solely upon customer’s detailed knowledge and experience with their application.

Bray/McCannalok HPBV – Seating & Unseating Torques

ASME 150 - Torques (Lb-Ins)

Series 40/41/4A Standard - Valve Differential Pressure (PSIG)

Valve

Size

Inches

2.5 3 4 5 6 8

10 12 14 16 18 20 24 26 28 30 32 34 36 40 42 48 54 60 Please Consult Factory

Less than 150 psig >150-200 psig >200-250 psig >250-285 psig

Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream

170 200 190 240 210 280 215 300 185 220 210 260 225 300 230 320 275 320 300 370 315 420 320 460 550 650 640 800 705 940 730 1,040

690 810 770 960 825 1,100 840 1,200 1,280 1,500 1,400 1,700 1,500 1,950 1,570 2,100 2,400 2,800 2,640 3,300 2,820 3,760 2,870 4,100 3,500 4,100 4,000 5,000 4,400 5,900 4,550 6,500 5,400 6,300 5,920 7,400 6,400 8,500 6,650 9,500 7,700 9,100 9,040 11,300 10,100 13,500 10,500 15,000

11,900 14,000 13,600 17,000 15,000 20,000 15,400 22,000 15,300 18,000 17,100 21,300 18,500 24,700 18,900 27,000 24,650 29,000 27,680 34,600 30,000 40,100 30,800 44,000 24,650 29,000 27,680 34,600 30,000 40,100 30,800 44,000 34,850 41,000 37,600 47,000 44,300 59,200 44,500 63,500 39,950 47,000 42,960 53,700 50,800 67,700 52,500 75,000 45,000 53,000 48,800 61,000 57,600 76,800 58,800 84,000 45,000 53,000 48,800 61,000 57,600 76,800 58,800 84,000 54,000 64,000 64,800 81,000 73,500 98,000 77,000 110,000 62,000 73,000 73,600 92,000 82,500 110,000 84,700 121,000 71,000 83,000 84,000 105,000 95,250 127,000 101,000 143,000 98,000 115,000 121,600 152,000 142,500 190,000 151,900 217,000

136,000 160,000 169,600 212,000 198,000 265,000 211,400 302,000

Series 40/41 Fire Safe - Valve Differential Pressure (PSIG)

2.5 3 4 5 6 8

10 12 14 16 18 20 24 26 Please Consult Factory 28 Please Consult Factory 30 Please Consult Factory 32 Please Consult Factory 34 Please Consult Factory

36 Please Consult Factory

40 Please Consult Factory

Torque : 4

680 720 690 770 700 810 710 840 750 800 760 830 770 870 780 900

850 900 880 980 890 1,050 910 1,100 1,420 1,500 1,470 1,630 1,500 1,750 1,600 1,850 1,660 1,750 1,690 1,880 1,800 2,000 1,900 2,100 2,600 2,800 2,690 2,950 2,750 3,100 2,860 3,200 3,900 4,200 4,100 4,530 4,250 4,860 4,400 5,100 6,500 6,900 6,600 7,350 6,700 7,790 6,900 8,100

12,300 13,000 12,600 14,000 13,200 15,500 13,600 17,000 15,200 16,000 15,800 17,600 16,300 19,200 16,320 20,400 18,000 19,000 18,900 21,000 19,000 22,500 19,200 24,000 21,800 23,000 22,500 25,000 23,800 28,000 28,800 36,000 31,000 33,000 34,200 38,000 37,400 44,000 50,400 63,000

All information herein is proprietary and condential and may not be copied or reproduced without the expressed written consent of BRAY INTERNATIONAL, Inc. The technical data herein is for general information only. Product suitability should be based solely upon customer’s detailed knowledge and experience with their application.

Bray/McCannalok HPBV – Seating & Unseating Torques

ASME 300 - Torques (Lb-Ins)

Series 42/43/4B Standard - Valve Differential Pressure (PSIG)

Valve

Size

Inches

2.5 3 4 5 6 8

10 12 14 16 18 20 24 30 36 40 48 54 Please Consult Factory

Less than 150 psig >150-350 psig >350-550 psig >550-740 psig

Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream

170 200 290 360 380 510 470 185 220 310 380 400 530 490 270 320 420 530 550 730 700 550 650 1,000 1,250 1,390 1,850 1,800

850 1,000 1,320 1,650 1,720 2,300 2,100 1,580 1,850 2,480 3,100 3,230 4,300 3,700 2,800 3,300 4,400 5,500 5,700 7,600 7,000 4,250 5,000 6,640 8,300 8,630 11,500 10,500 7,300 8,600 10,720 13,400 13,700 18,300 15,400

11,900 14,000 17,200 21,500 21,800 29,000 26,600 15,300 18,000 21,600 27,000 27,100 36,100 31,500 20,400 24,000 29,400 36,700 37,000 49,300 42,700 32,300 38,000 45,600 57,000 57,500 76,700 66,500

68,000 80,000 101,600 127,000 129,000 172,000 147,000 101,150 119,000 144,000 180,000 180,000 240,000 203,000 115,600 136,000 168,000 210,000 222,000 296,000 278,600 127,500 150,000 217,600 272,000 321,000 428,000 403,200

670

690 1,000 2,550 3,000 5,300

10,000 15,000 22,000 38,000 45,000 61,000

95,000 210,000 290,000 398,000 576,000

Series 42/43 Fire Safe - Valve Differential Pressure (PSIG)

2.5 3 4 5 6 8

10 12 14 16 18 Please Consult Factory 20 Please Consult Factory 24 Please Consult Factory

680 720 775 860 860 1,010 880 1,100 750 800 855 950 935 1,100 960 1,200

850 900 1,080 1,200 1,275 1,500 1,360 1,700 1,420 1,500 2,070 2,300 2,635 3,100 2,880 3,600 2,000 2,100 2,610 2,900 3,150 3,700 3,440 4,300 3,000 3,150 3,870 4,300 4,675 5,500 4,960 6,200 6,900 7,300 9,180 10,200 11,050 13,000 12,000 15,000

10,450 11,000 13,200 14,700 15,640 18,400 16,800 21,000 18,050 19,000 21,600 24,000 22,100 26,000 22,400 28,000 26,600 28,000 34,200 38,000 37,400 44,000 39,200 49,000

Torque : 5

All information herein is proprietary and condential and may not be copied or reproduced without the expressed written consent of BRAY INTERNATIONAL, Inc. The technical data herein is for general information only. Product suitability should be based solely upon customer’s detailed knowledge and experience with their application.

Bray/McCannalok HPBV – Seating & Unseating Torques

ASME 600 - Torques (Lb-Ins)

Series 44/45 Standard - Valve Differential Pressure (PSIG)

Valve

Size

Inches

3 4 6

8 10 12 14 16 18 20 24 30

3 Please Consult Factory

4 Please Consult Factory

6 Please Consult Factory

8 Please Consult Factory 10 Please Consult Factory 12 Please Consult Factory 14 Please Consult Factory

Less than 150 psig >150-600 psig >600-1050 psig >1050-1480 psig

Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream

400 480 700 870 900 1,200 1,000 1,450

850 960 1,280 1,600 1,580 2,100 1,900 2,700 1,450 1,700 2,560 3,200 3,450 4,600 4,100 5,800 3,500 4,100 5,760 7,200 7,600 10,100 9,800 14,000 7,100 8,300 9,600 12,000 13,500 18,000 16,800 24,000

10,100 11,800 11,200 14,000 19,500 26,000 21,000 30,000 11,900 14,000 19,200 24,000 24,800 33,000 30,000 43,000 14,000 16,500 28,400 35,500 34,500 46,000 45,500 65,000 16,200 19,000 34,400 43,000 49,000 65,000 64,400 92,000 21,300 25,000 45,600 57,000 66,000 88,000 87,000 124,000 33,000 39,000 71,000 89,000 94,000 125,000 123,000 175,000 71,000 83,000 137,000 172,000 180,000 240,000 217,000 310,000

Series 44/45 Fire Safe - Valve Differential Pressure (PSIG)

Torque : 6

All information herein is proprietary and condential and may not be copied or reproduced without the expressed written consent of BRAY INTERNATIONAL, Inc. The technical data herein is for general information only. Product suitability should be based solely upon customer’s detailed knowledge and experience with their application.

Bray/McCannalok HPBV – Seating & Unseating Torques

ASME 150 - Torques (N-m)

Series 40/41/4A Standard - Valve Differential Pressure (Bar)

Valve

Size mm

65 19 23 21 27 24 32 24 34

80 21 25 24 29 25 34 26 36 100 31 36 34 42 36 47 36 52 125 62 73 72 90 80 106 82 118

150 78 92 87 108 93 124 95 136 200 145 170 158 192 170 220 177 237 250 271 316 411 373 319 425 324 463 300 396 463 452 565 497 667 514 735 350 610 712 669 836 723 961 751 1,074 400 870 1,028 1,022 1,277 1,141 1,526 1,187 1,695 450 1,345 1,582 1,537 1,921 1,695 2,260 1,740 2,486 500 1,729 2,034 1,932 2,407 2,091 2,791 2,136 3,051 600 2,785 3,277 3,128 3,910 3,390 4,531 3,480 4,972 650 2,785 3,277 3,128 3,910 3,390 4,531 3,480 4,972 700 3,938 4,633 4,249 5,311 5,006 6,690 5,029 7,176 750 4,514 5,311 4,854 6,068 5,740 7,650 5,933 8,475 800 5,085 5,989 5,514 6,893 6,509 8,678 6,644 9,492 850 5,085 5,989 5,514 6,893 6,509 8,678 6,644 9,492

900 6,102 7,232 7,322 9,153 8,306 11,074 8,701 12,430 1,000 7,006 8,249 8,317 10,396 9,323 12,430 9,571 13,673 1,050 8,023 9,379 9,492 11,865 10,763 14,351 11,413 16,159 1,200 11,074 12,995 13,741 17,176 16,103 21,470 17,165 24,521 1,350 15,368 18,080 19,165 23,956 22,374 29,945 23,888 34,126 1,500

Less than 10.3 Bar >10.3-14 Bar >14-17.2 Bar >17.2-20 Bar

Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream

Please Consult Factory

Series 40/41 Fire Safe - Valve Differential Pressure (Bar)

65 77 81 78 87 79 92 80 95

80 85 90 86 94 87 98 88 102 100 96 102 99 111 101 119 103 124 125 160 170 166 184 170 198 181 209 150 188 198 191 212 203 226 215 237 200 294 316 304 333 311 350 323 362 250 441 475 463 512 480 549 497 576 300 735 780 746 831 757 880 780 915 350 1,390 1,469 1,424 1,582 1,492 1,752 1,537 1,921 400 1,718 1,808 1,785 1,989 1,842 2,170 1,844 2,305 450 2,034 2,147 2,136 2,373 2,147 2,543 2,170 2,712 500 2,463 2,599 2,543 2,825 2,689 3,164 3,254 4,068 600 3,503 3,729 3,865 4,294 4,226 4,972 5,695 7,119 650 Please Consult Factory 700 Please Consult Factory 750 Please Consult Factory 800 Please Consult Factory 850 Please Consult Factory 900 Please Consult Factory

1,000 Please Consult Factory

Torque : 7

All information herein is proprietary and condential and may not be copied or reproduced without the expressed written consent of BRAY INTERNATIONAL, Inc. The technical data herein is for general information only. Product suitability should be based solely upon customer’s detailed knowledge and experience with their application.

Bray/McCannalok HPBV – Seating & Unseating Torques

ASME 300 - Torques (N-m)

Series 42/43/4B Standard - Valve Differential Pressure (Bar)

Valve

Size mm

65 19 23 33 41 43 58 53 76

80 21 25 35 43 45 60 55 78 100 31 36 47 60 62 82 79 113 125 62 73 113 141 157 209 203 288 150 96 113 149 186 194 260 237 339 200 179 209 280 350 365 486 418 599 250 316 373 497 622 644 859 791 1,130 300 480 565 750 938 975 1,300 1,187 1,695 350 825 972 1,211 1,514 1,548 2,068 1,740 2,486 400 1,345 1,582 1,944 2,430 2,463 3,277 3,006 4,294 450 1,729 2,034 2,441 3,051 3,062 4,079 3,560 5,085 500 2,305 2,712 3,322 4,147 4,181 5,571 4,825 6,893 600 3,650 4,294 5,153 6,441 6,498 8,667 7,515 10,735 750 7,684 9,040 11,481 14,351 14,577 19,436 16,611 23,730 900 11,430 13,447 16,272 20,340 20,340 27,120 22,939 32,770

1,000 13,063 15,368 18,984 23,730 25,086 33,448 31,482 44,974 1,200 14,408 16,950 24,589 30,736 36,273 48,364 45,562 65,088 1,350 Please Consult Factory

Less than 10.3 Bar >10.3-24 Bar >24-38 Bar >38-51 Bar

Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream

Series 42/43 Fire Safe - Valve Differential Pressure (Bar)

65 77 81 88 97 97 114 99 124

80 85 90 97 107 106 124 108 136 100 96 102 122 136 144 170 154 192 125 160 170 234 260 298 350 325 407 150 226 237 295 328 356 418 389 486 200 339 356 437 486 528 622 560 701 250 780 825 1,037 1,153 1,249 1,469 1,356 1,695 300 1,181 1,243 1,492 1,661 1,767 2,079 1,898 2,373 350 2,040 2,147 2,441 2,712 2,497 2,938 2,531 3,164 400 3,006 3,164 3,865 4,294 4,226 4,972 4,430 5,537 450 Please Consult Factory 500 Please Consult Factory 600 Please Consult Factory

Torque : 8

All information herein is proprietary and condential and may not be copied or reproduced without the expressed written consent of BRAY INTERNATIONAL, Inc. The technical data herein is for general information only. Product suitability should be based solely upon customer’s detailed knowledge and experience with their application.

Bray/McCannalok HPBV – Seating & Unseating Torques

ASME 600 - Torques (N-m)

Series 44/45 Standard - Valve Differential Pressure (Bar)

Valve

Size mm

80 45 54 79 98 102 136 113 164 100 96 108 145 181 179 237 215 305 150 164 192 289 362 390 520 463 655 200 396 463 651 814 859 1,141 1,107 1,582 250 802 938 1,085 1,356 1,526 2,034 1,898 2,712 300 1,141 1,333 1,266 1,582 2,204 2,938 2,373 3,390 350 1,345 1,582 2,170 2,712 2,802 3,729 3,390 4,859 400 1,582 1,865 3,209 4,012 3,899 5,198 5,142 7,345 450 1,831 2,147 3,887 4,859 5,537 7,345 7,277 10,396 500 2,407 2,825 5,153 6,441 7,458 9,944 9,831 14,012 600 3,729 4,407 8,023 10,057 10,622 14,125 13,899 19,775 750 8,023 9,379 15,481 19,436 20,340 27,120 24,521 35,030

80 Please Consult Factory 100 Please Consult Factory 150 Please Consult Factory 200 Please Consult Factory 250 Please Consult Factory 300 Please Consult Factory 350 Please Consult Factory

Less than 10.3 Bar >10.3-41.4 Bar >41.4-72.4 Bar >72.4-102 Bar

Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream

Series 44/45 Fire Safe - Valve Differential Pressure (Bar)

Torque : 9

All information herein is proprietary and condential and may not be copied or reproduced without the expressed written consent of BRAY INTERNATIONAL, Inc. The technical data herein is for general information only. Product suitability should be based solely upon customer’s detailed knowledge and experience with their application.

Bray/McCannalok HPBV – Dynamic Torques

Pressure Distribution

FLOW

Dynamic Torques:

When a media ows through a buttery valve, static pressure

does not act uniformly on the surfaces of the valve disc. Dynamic torque will cause rotary motion when unchecked by the actuator or manual operator possibly resulting in opening or closing of the valve. If the dynamic torque is of a magnitude that is greater than the bearing and packing friction torque and there is no actuator in place to maintain disc position, the opening or closing action could result in injury to operating personnel or an interruption of the process. Sudden closure (slamming) can cause water hammer damage in lines carrying liquid.

In high performance buttery valves which have the disc

offset from the stem and have non-symmetrical disc faces,

dynamic torque acts to close the valve if the valve is installed with the seat retainer downstream, but can act to close or open the valve, depending on the position of the disc, if the seat retainer is upstream.

Seat Retainer Upstream

Seat Retainer Downstream

Dynamic torque should be calculated as part of the valve actuator sizing procedure or to determine if hand lever operation is acceptable. In this regard, the total torque of all service conditions must be considered.

The total torque when the disc is in the seat consists of:

1. Seating torque

2. Stem packing torque

3. Eccentricity torque

4. Stem bearing torque The total torque when the disc is in the seat is published as seating/unseating torque. When the disc is out of the seat, the total torque consists of dynamic torque, stem packing torque, and stem bearing torque.

Total torque changes with the disc position. Maximum total torque can occur at shutoff (disc in the seat), at breakaway (motion initiation), or at any open disc position where the product

of valve pressure drop and dynamic torque coefcient peaks in

combination with prevailing bearing and packing torque.

Estimating Dynamic Torque

Dynamic torque can be estimated using the following empirical equations:

Liquid Flow:

Imperial ...... Td (Lb-inches) = Ct D³ p

Metric ......... Td (N-m) = .0001 Ct D³ p

Gas Flow:

Imperial ...... Td (Lb-inches) = Ct D³ Y p

Metric ......... Td (N-m) = .0001 Ct D³ Y p

Dynamic Torque - Terminology

dynamic torque coefcient (see graphs and tables on

Ct -

Pg. 12 for values of Ct.) Positive value of Ct means that the dynamic torque acts to close the valve and a negative value of Ct to open the valve.

nominal valve size (inch or mm)

D -

ratio of specic heat factor (dimensionless)

Fk -

Fk = k/1.40 or Fk = 1 for air

ratio of specic heat (dimensionless)

k -

effective pressure drop across the valve (psi or bar)

p -

valve inlet pressure (psia or bar abs.)

p1 -

dynamic torque (Lb-inches or N-m)

Td -

x = p/p1

x -

gas expansion factor (dimensionless)

Y -

Y = 1 – x / (3 Fk xt)

xt -

gas critical pressure ratio (dimensionless) Values of xt change with disc position and are identical for seat retainer upstream and downstream.

º Open xt º Open xt

10º 0.46 55° 0.31

15º 0.46 60° 0.28

20º 0.46 65° 0.27

25° 0.45 70° 0.25

30° 0.44 75° 0.24

35° 0.42 80° 0.22

40° 0.39 85° 0.21

45° 0.35 90º 0.19

50° 0.33

Dynamic : 10

All information herein is proprietary and condential and may not be copied or reproduced without the expressed written consent of BRAY INTERNATIONAL, Inc. The technical data herein is for general information only. Product suitability should be based solely upon customer’s detailed knowledge and experience with their application.

Bray/McCannalok HPBV – Dynamic Torques

For: Condition: Use: Note:

Subchoked Flow

Choked Flow

Pipe and Valve Size Equal

W/ Pipe Reducers

Pipe and Valve Size Equal

W/ Pipe Reducers

• Nominal Valve Size

• Valve Pressure Drop

• Ct from graphs/tables on pg. 12

• Nominal Valve Size

• Ct from graphs/tables on pg. 12

• Valve Pressure Drop as if valve

were installed in valve-sized pipe with same ﬂow rate

• Nominal Valve Size

• Ct from graphs/tables on pg. 12

• Actual Pressure drop through

valve.

• Nominal Valve Size

• Ct from graphs/tables on pg. 12

• Actual pressure drop through

valve/reducer assembly.

If actual pressure drop at the choked condition is not known, estimate by evaluating the pressure in the piping at the valve outlet needed to sustain the choked ﬂow rate through the piping downstream of the valve; then subtracting it from the valve inlet pressure.

If the pressure drop at the choked condition is not known, estimate the line pressure just down stream of the valve/reducer assembly which is needed to sustain the choked ﬂow rate of the valve/reducer assembly through the downstream piping; then subtract this pressure from the line pressure just ahead of the valve/reducer assembly, to get the actual pressure drop.

-

For: Condition: Use: Note:

Subchoked Flow

Choked Flow

Dynamic : 11

Pipe and Valve Size Equal

W/ Pipe Reducers

Pipe and Valve Size Equal

W/ Pipe Reducers

All information herein is proprietary and condential and may not be copied or reproduced without the expressed written consent of BRAY INTERNATIONAL, Inc. The technical data herein is for general information only. Product suitability should be based solely upon customer’s detailed knowledge and experience with their application.

• Nominal Valve Size

• Valve Pressure Drop

• Ct from graphs/tables on pg. 12

• Nominal Valve Size

• Ct from graphs/tables on pg. 12

• Valve Pressure Drop (and expansion factor

Y) as if valve were installed in valve-sized pipe with same ﬂow rate.

• Nominal Valve Size

• Gas expansion factor Y of 2/3

• Ct from graphs/tables on pg. 12



p = p1 Fk xt

•

• Nominal Valve Size

• Gas expansion factor Y of 2/3

• Ct from graphs/tables on pg. 12

• p = p1 Fk xt

In calculating Y, use the line pressure just upstream of the inlet reducer for p1 and xt from the table on page 10.

Use xt from the table on page 10.

Use the line pressure just upstream of the inlet reducer for p1 and xt from

the table above in calculating on page 10.



p,

0.55

0.50

0.45

0.40

0.35

0.30

0.25

0.20

0.15

0.10

Dynamic Torque Coefficient

0.05 0

Angle of Opening

Ct Down

Bray/McCannalok HPBV – Dynamic Torques

Figure 3. Ct values with the Seat Retainer Down Stream

McCannalok Dynamic Torque Coefficient

Seat Retainer Downstream

0˚ 10˚ 15˚ 20˚ 25˚ 30˚ 35˚ 40˚ 45˚ 50˚ 55˚ 60˚ 65˚ 70˚ 75˚ 80˚ 85˚ 90˚

.012.0 .022 .031 .044 .058 .073 .088 .114 .141 .176 .212 .260 .308 .370 .431 .496 .362

0.15

0.10

0.05 0

-0.05

-0.10

-0.15

-0.20

-0.25

-0.30

-0.35

Dynamic Torque Coefficient

-0.40

Angle of Opening

Ct up

Figure 4. Ct values with the Seat Retainer Up Stream

McCannalok Dynamic Torque Coefficient

Seat Retainer Upstream

!

0˚ 10˚ 15˚ 20˚ 25˚ 30˚ 35˚ 40˚ 45˚ 50˚ 55˚ 60˚ 65˚ 70˚ 75˚ 80˚ 85˚ 90˚

.015.0 .018 .020 .023 .027 .037 .046 .055 .063 .078 .086 .093 .100 .084 .032 -.17 -.37

Dynamic : 12

All information herein is proprietary and condential and may not be copied or reproduced without the expressed written consent of BRAY INTERNATIONAL, Inc. The technical data herein is for general information only. Product suitability should be based solely upon customer’s detailed knowledge and experience with their application.

Bray/McCannalok HPBV – Dynamic Torques

1. Subchoked Liquid Flow, Line-size Valve.

Example Calculations: Data:

A 24” class 150 McCannalok is to be installed in a 24”

line carrying water. It has been determined that the ow

is not choked and the following pressure drops through the valve have been calculated:

Estimate the maximum dynamic torque in Lb-inches for the valve considering installation with the seat retainer upstream.

Substituting produces following results:

Thus the peak dynamic torque will occur between 30 and 40 degrees open.

Verify dynamic torque at 35 degrees: Approximate pressure drop = (70+35)/2 = 52.5 psi.

The peak dynamic torque of approximately 27,000 Lb-inches occurs at about 35 degrees open.

When sizing the valve operator, total torque must be considered. The total torque when the disc is in the seat consists of seating torque, stem packing torque, eccentricity torque and stem bearing torque. The total torque when the disc is in the seat is published as seating/unseating torque (see pages 1-6. When the disc is out of the seat, total torque consists of dynamic torque, stem packing torque, and stem bearing torque.

• 75 psi with the valve 20 degrees open

• 70 psi with the valve 30 degrees open

• 35 psi with the valve 40 degrees open

• 3.5 psi with the valve 55 degrees open

• 1.1 psi with the valve 60 degrees open

• .20 psi with the valve 70 degrees open

• .05 psi with the valve 80 degrees open

• .03 psi with the valve 90 degrees open

Td = Ct D³

• 20 degrees, Td = .020 x 24³ x 75 = 20,700 Lb-inches, (tends to close the valve)

• 30 degrees, Td = .027 x 24³ x 70 = 26,100 Lb-inches

• 40 degrees, Td = .046 x 24³ x 35 = 22,300 Lb-inches

• 55 degrees, Td = .078 x 24³ x 3.5 = 3,800 Lb-inches

• 60 degrees, Td = .086 x 24³ x 1.1 = 1,300 Lb-inches

• 70 degrees, Td = .100 x 24³ x .20 = 300 Lb-inches

• 80 degrees, Td = .032 x 24³ x .05 = 20 Lb-inches

• 90 degrees, Td = -.369 x 24³ x .03 = -150 Lb-inches,

(tends to open the valve)

At 35 degrees: Td = .037 x 24³ x 52.5 = 27,000

p

Lb-inches

2. Choked Gas Flow, Reduced-size Valve.

Example Calculations:

20” (DN 500) class 300 McCannalok buttery valve is installed in a 600 mm (24”) line owing air and the disc is set at 45 degrees. The ow is choked. A pressure gauge tapped into the pipe just above the upstream reducer shows

24.5 bar.

Estimate the dynamic torque in N-m, given that the seat retainer is installed downstream.

Calculations:

p = p1 Fk xt Td = .0001 Ct D³ Y p p = 25.5 x 1.0 x .35 = 8.9 bar Td = .0001 x .114 x 500³ x .667 x 8.9 = 8,500 N-m

Thus the dynamic torque at 45º open is about 8,500 N-m, and acts to close the valve.

Dynamic : 13

All information herein is proprietary and condential and may not be copied or reproduced without the expressed written consent of BRAY INTERNATIONAL, Inc. The technical data herein is for general information only. Product suitability should be based solely upon customer’s detailed knowledge and experience with their application.

D = 500 mm Fk = 1.0 Ct = .114

Y = .667 for choked ow

p1 = 24.5 + 1.0 = 25.5 bar absolute, (1 atm. = 1.013 bar, i.e. about 1.0 bar) xt at 45º = .35

Bray/McCannalok HPBV – Maximum Allowable Shaft Torques

Maximum Allowable Shaft Torques (Lb-Ins)*

Standard & Fire Safe Valves

Valve

Size

inches

2.5

3

4

5

6

8

10

12

14

16

18

20

24

26

28

30

32

34

36

40

42

48

54

60

ASME 150 ASME 300 ASME 600

Series S40/41/4A Series S42/43/4B Series 44/45

1,776 1,776 NA

1,776 1,776 2,980

1,776 1,776 5,101

2,980 2,980

2,980 5,101 13,107

5,101 13,107 22,779

13,107 22,779 72,679

22,779 72,679 142,582

72,679 142,582 246,277

72,679 142,582 423,121

142,582 202,665 625,210

202,665 423,121 1,059,387

202,665

246,277

423,121 840,799

423,121

423,121 1,059,387

840,799 1,929,311

1,059,387 2,185,227

1,242,673 3,254,310

Please Consult Factory

* Based on shaft Material Code 50J (17-4 PH stainless steel, ASTM A564 Type 630 H1075)

Shaft Torque : 14

All information herein is proprietary and condential and may not be copied or reproduced without the expressed written consent of BRAY INTERNATIONAL, Inc. The technical data herein is for general information only. Product suitability should be based solely upon customer’s detailed knowledge and experience with their application.

Bray/McCannalok HPBV – Maximum Allowable Shaft Torques

Maximum Allowable Shaft Torques (N-m)*

Standard & Fire Safe Valves

Valve

Size mm

65

80

100

125

150

200

250

300

350

400

450

500

600

650

700

750

800

850

900

1,000

1,050

1,200

1,350

1,500

* Based on shaft Material Code 50J (17-4 PH stainless steel, ASTM A564 Type 630 H1075)

ASME 150 ASME 300 ASME 600

Series S40/41/4A Series S42/43/4B Series 44/45

201 201 NA

201 201 337

201 201 576

337 337

337 576 1,481

576 1,481 2,574

1,481 2,574 8,213

2,574 8,213 16,112

8,213 16,112 27,829

8,213 16,112 47,813

16,112 22,901 70,649

22,901 47,813 119,711

22,901

27,829

47,813 95,010

47,813

47,813 119,711

95,010 218,012

119,711 246,931

140,422 367,737

Please Consult Factory

Shaft Torque : 15

All information herein is proprietary and condential and may not be copied or reproduced without the expressed written consent of BRAY INTERNATIONAL, Inc. The technical data herein is for general information only. Product suitability should be based solely upon customer’s detailed knowledge and experience with their application.

Bray/McCannalok HPBV – Valve Sizing Coefﬁcients

Valve Sizing Coefﬁcients:

1. Valve Sizing Coefﬁcients (Cv) ......................................pages 15-16

1. Cv stands for Valve Sizing Coefcient.

2. Cv varies with the valve size, angle of opening and the manufacturer’s valve style.

3. Cv is dened as the volume of water in USGPM that will ow through a given restriction or valve opening with a pressure drop of one (1) psi at room temperature.

2. Valve Sizing Coefﬁcients (Kv) ......................................pages 17-18

1. Kv stands for Valve Sizing Coefcient.

2. Kv varies with the valve size, angle of opening and the manufacturer’s valve style.

3. Kv is dened as the volume of water in Cubic Meters/Hour (m3/hr) that will ow through a given restriction or valve opening with a pressure drop of one (1) bar at room temperature.

Coefﬁcients : 16

All information herein is proprietary and condential and may not be copied or reproduced without the expressed written consent of BRAY INTERNATIONAL, Inc. The technical data herein is for general information only. Product suitability should be based solely upon customer’s detailed knowledge and experience with their application.

Valve

Size

Inches

2 1/2

10 12 14 16 18 20 24 26 28 30 32 34 36 40 42 48 54 60

Bray/McCannalok HPBV – Valve Sizing Coefﬁcients

ASME 150 Series 40/41/4A - Valve Sizing Coefﬁcient (Cv)

Disc Position (Degrees)

90º 80º 70º 60º 50º 40º 30º 20º 10º

160 136 100 78 50 30 16 8 3

3 4 5 6 8

185 178 155 123 87 56 32 14 5 375 365 315 250 175 115 63 31 10

790 675 500 360 238 146 78 41 16 1,350 1,070 750 510 330 218 140 81 35 2,800 2,230 1,590 1,060 685 456 280 165 65 4,300 3,450 2,430 1,630 1,050 700 450 250 100 6,650 5,330 3,750 2,530 1,630 1,080 700 390 155 7,650 6,100 4,300 2,900 1,890 1,250 810 450 175 9,800 7,860 5,510 3,700 2,420 1,530 1,020 580 230

10,500 9,100 6,960 5,100 3,520 2,220 1,180 500 170 13,500 11,700 8,800 6,500 4,500 2,820 1,530 640 200 20,000 17,100 12,800 9,570 6,640 3,880 2,200 920 240 20,000 17,100 12,800 9,570 6,640 3,880 2,200 920 240 28,000 23,900 18,200 13,500 9,300 5,700 3,100 1,300 290 32,000 27,300 20,900 15,500 10,700 6,700 3,600 1,510 320 34,000 29,100 22,300 16,500 11,400 7,150 3,850 1,610 340 34,000 29,100 22,300 16,500 11,400 7,150 3,850 1,610 340 48,500 41,100 31,700 23,200 16,400 10,200 5,430 2,260 480 62,000 55,200 44,000 33,300 23,800 15,200 8,600 3,520 670 65,000 58,000 46,100 35,000 25,000 16,000 9,000 3,700 700

91,000 80,900 63,700 43,600 29,100 20,000 11,000 4,600 920 125,000 111,000 87,500 60,000 40,000 27,500 15,000 6,000 1,200 160,000 140,000 105,000 75,000 50,000 31,000 17,000 7,000 1,400

Coefﬁcients : 17

All information herein is proprietary and condential and may not be copied or reproduced without the expressed written consent of BRAY INTERNATIONAL, Inc. The technical data herein is for general information only. Product suitability should be based solely upon customer’s detailed knowledge and experience with their application.

Bray/McCannalok HPBV – Valve Sizing Coefﬁcients

ASME 300 Series 42/43/4B - Valve Sizing Coefﬁcient (Cv)

Valve

Size

Inches

90º 80º 70º 60º 50º 40º 30º 20º 10º

2 1/2 160 136 100 78 50 30 16 8 3

3 185 178 155 123 87 56 32 14 5 4 375 365 315 250 175 115 63 31 10 5 790 675 500 360 238 146 78 41 16 6 1,000 875 710 530 370 240 138 79 26

8 2,000 1,720 1,360 950 630 405 240 121 47 10 2,650 2,250 1,740 1,200 780 510 295 150 61 12 4,000 3,400 2,500 1,690 1,100 710 430 220 92 14 4,100 3,500 2,600 1,770 1,200 830 490 240 100 16 7,800 6,540 4,550 2,970 1,840 1,160 730 420 180 18 9,500 8,000 6,170 4,530 3,110 1,970 1,080 440 94 20 11,000 9,570 7,300 5,400 3,720 2,330 1,250 530 110 24 18,000 15,100 11,400 8,570 5,920 3,700 2,000 830 180 30 29,000 24,400 18,900 13,700 8,500 6,000 3,230 1,330 290 36 45,000 38,100 29,200 21,000 14,800 9,100 4,660 1,730 380 42 60,000 54,000 42,000 30,000 19,000 13,000 7,500 2,600 450 48 83,000 74,000 58,000 41,000 26,000 17,000 10,000 4,400 800 54

Disc Position (Degrees)

Please Consult Factory

ASME 600 Series 44/45 - Valve Sizing Coefﬁcient (Cv)

Valve

Size

Inches

90º 80º 70º 60º 50º 40º 30º 20º 10º

3 165 158 135 103 67 46 12 8 3

4 300 270 210 150 95 70 45 30 5

6 800 765 600 425 270 200 130 70 15

8 1,500 1,350 1,050 750 480 345 209 78 20 10 2,200 1,970 1,540 1,100 700 500 300 140 40 12 3,100 2,790 2,170 1,550 1,000 680 400 190 55 14 3,900 3,300 2,400 1,570 1,100 730 420 200 70 16 5,000 4,200 2,900 1,900 1,200 800 500 250 95 18 6,000 5,000 3,900 2,800 1,900 1,200 660 290 130 20 8,000 6,900 5,300 3,900 2,700 1,700 950 400 143 24 11,000 9,300 7,000 5,200 3,600 2,250 1,200 500 180 30 15,000 13,000 10,000 8,400 5,100 2,800 1,650 600 200

Disc Position (Degrees)

Coefﬁcients : 18

All information herein is proprietary and condential and may not be copied or reproduced without the expressed written consent of BRAY INTERNATIONAL, Inc. The technical data herein is for general information only. Product suitability should be based solely upon customer’s detailed knowledge and experience with their application.

Bray/McCannalok HPBV – Valve Sizing Coefﬁcients

ASME 150 Series 40/41/4A - Valve Sizing Coefﬁcient (Kv)

Valve

Size mm

90º 80º 70º 60º 50º 40º 30º 20º 10º

65 136 116 85 67 43 26 14 7 3

80 158 152 132 105 74 48 27 12 4 100 320 311 269 213 149 98 54 26 9 125 674 576 427 307 203 125 67 35 14 150 1,152 913 640 435 281 186 119 69 30 200 2,388 1,902 1,356 904 584 389 239 141 55 250 3,668 2,943 2,073 1,390 896 597 384 213 85 300 5,672 4,546 3,199 2,158 1,390 921 597 333 132 350 6,525 5,203 3,668 2,474 1,612 1,066 691 384 149 400 8,359 6,705 4,700 3,156 2,064 1,305 870 495 196 450 8,957 7,762 5,937 4,350 3,003 1,894 1,007 427 145 500 11,516 9,980 7,506 5,545 3,839 2,405 1,305 546 171 600 17,060 14,586 10,918 8,163 5,664 3,310 1,877 785 205 650 17,060 14,586 10,918 8,163 5,664 3,310 1,877 785 205 700 23,884 20,387 15,525 11,516 7,933 4,862 2,644 1,109 247 750 27,296 23,287 17,828 13,222 9,127 5,715 3,071 1,288 273 800 29,002 24,822 19,022 14,075 9,724 6,099 3,284 1,373 290 850 29,002 24,822 19,022 14,075 9,724 6,099 3,284 1,373 290 900 41,371 35,058 27,040 19,790 13,989 8,701 4,632 1,928 409

1,000 52,886 47,086 37,532 28,405 20,301 12,966 7,336 3,003 572 1,050 55,445 49,474 39,323 29,855 21,325 13,648 7,677 3,156 597 1,200 77,623 69,008 54,336 37,191 24,822 17,060 9,383 3,924 785 1,350 106,625 94,683 74,638 51,180 34,120 23,458 12,795 5,118 1,024 1,500 136,480 119,420 89,565 63,975 42,650 26,443 14,501 5,971 1,194

Disc Position (Degrees)

Coefﬁcients : 19

All information herein is proprietary and condential and may not be copied or reproduced without the expressed written consent of BRAY INTERNATIONAL, Inc. The technical data herein is for general information only. Product suitability should be based solely upon customer’s detailed knowledge and experience with their application.

Bray/McCannalok HPBV – Valve Sizing Coefﬁcients

ASME 300 Series 42/43/4B - Valve Sizing Coefﬁcient (Kv)

Valve

Size mm

90º 80º 70º 60º 50º 40º 30º 20º 10º

65 136 116 85 67 43 26 14 7 3

80 158 152 132 105 74 48 27 12 4 100 320 311 269 213 149 98 54 26 9 125 674 576 427 307 203 125 67 35 14 150 853 746 606 452 316 205 118 67 22 200 1,706 1,467 1,160 810 537 345 205 103 40 250 2,260 1,919 1,484 1,024 665 435 252 128 52 300 3,412 2,900 2,133 1,442 938 606 367 188 78 350 3,497 2,986 2,218 1,510 1,024 708 418 205 85 400 6,653 5,579 3,881 2,533 1,570 989 623 358 154 450 8,104 6,824 5,263 3,864 2,653 1,680 921 375 80 500 9,383 8,163 6,227 4,606 3,173 1,987 1,066 452 94 600 15,354 12,880 9,724 7,310 5,050 3,156 1,706 708 154 750 24,737 20,813 16,122 11,686 7,251 5,118 2,755 1134 247 900 38,385 32,499 24,908 17,913 12,624 7,762 3,975 1476 324

1,050 51,180 46,062 35,826 25,590 16,207 11,089 6,398 2218 384 1,200 70,799 63,122 49,474 34,973 22,178 14,501 8,530 3753 682 1,350

Disc Position (Degrees)

Please Consult Factory

ASME 600 Series 44/45 - Valve Sizing Coefﬁcient (Kv)

Valve

Size mm

90º 80º 70º 60º 50º 40º 30º 20º 10º

80 141 135 115 88 57 39 10 7 3

100 256 230 179 128 81 60 38 26 4 150 735 662 519 368 234 173 112 61 13 200 1,280 1,152 896 640 409 294 178 67 17 250 1,877 1,680 1,314 938 597 427 256 119 34 300 2,644 2,380 1,851 1,322 853 580 341 162 47 350 3,327 2,815 2,047 1,339 938 623 358 171 60 400 4,265 3,583 2,474 1,621 1,024 682 427 213 81 450 5,118 4,265 3,327 2,388 1,621 1,024 563 247 111 500 6,824 5,886 4,521 3,327 2,303 1,450 810 341 122 600 9,383 7,933 5,971 4,436 3,071 1,919 1,024 427 154 750 12,795 11,089 8,530 7,165 4,350 2,388 1,407 512 171

Disc Position (Degrees)

Coefﬁcients : 20

All information herein is proprietary and condential and may not be copied or reproduced without the expressed written consent of BRAY INTERNATIONAL, Inc. The technical data herein is for general information only. Product suitability should be based solely upon customer’s detailed knowledge and experience with their application.

-20

0 200 400 600 800 1000 1200 1400 1600

0

100

200

300

400

500

600

Temperature ºF

Pressure psig

-29

0

100

200

20 40 60 80 1000

Temperature ºC

Pressure Bar

Stainless Steel Body

RTFE Seats

300

-20

0 200 400 600 800 1000 1200 1400 1600

0

100

200

300

400

500

600

-29

0

100

200

20 40 60 80 1000

Temperature ºF

Temperature ºC

Pressure psig

Pressure Bar

300

Carbon Steel Body

RTFE Seats

ASME 300 ASME 600ASME 150

Bray/McCannalok HPBV – Pressure & Temperature

With PTFE Seats:

600

500

400

300

200

100

Temperature ºF

-20

0

600

500

400

300

200

100

Temperature ºF

0

-20

20 40 60 80 1000

Pressure Bar

Stainless Steel Body

PTFE Seats

ASME 300 ASME 600ASME 150

0 200 400 600 800 1000 1200 1400 1600

Pressure psig

Pressure Bar

20 40 60 80 1000

Carbon Steel Body

ASME 300 ASME 600ASME 150

PTFE Seats

0 200 400 600 800 1000 1200 1400 1600

Pressure psig

300

200

100

Temperature ºC

0

-29

300

200

100

Temperature ºC

0

-29

Note: Valves in all pressure classes are rated to a maximum pressure rating of 150 psig (10.3 bar) in steam service applications.

Press/Temp : 21

All information herein is proprietary and condential and may not be copied or reproduced without the expressed written consent of BRAY INTERNATIONAL, Inc. The technical data herein is for general information only. Product suitability should be based solely upon customer’s detailed knowledge and experience with their application.

Bray/McCannalok HPBV – Pressure & Temperature

Pressure Bar

With RTFE Seats:

600

500

400

300

200

100

Temperature ºF

0

-20

0 200 400 600 800 1000 1200 1400 1600

600

500

400

300

200

100

Temperature ºF

0

-20

0 200 400 600 800 1000 1200 1400 1600

20 40 60 80 1000

300

Stainless Steel Body

RTFE Seats

200

100

ASME 300 ASME 600ASME 150

Temperature ºC

0

-29

Pressure psig

Pressure Bar

20 40 60 80 1000

Carbon Steel Body

RTFE Seats

300

200

100

ASME 300 ASME 600ASME 150

Temperature ºC

0

-29

Pressure psig

Note: Valves in all pressure classes are rated to a maximum pressure rating of 150 psig (10.3 bar) in steam service applications.

Press/Temp : 22

All information herein is proprietary and condential and may not be copied or reproduced without the expressed written consent of BRAY INTERNATIONAL, Inc. The technical data herein is for general information only. Product suitability should be based solely upon customer’s detailed knowledge and experience with their application.

Bray/McCannalok HPBV – Flange to Valve Bolting Guide

Examples of Typical Flange to Valve Bolting*

** Lug Style Bolting

Gasket

Flange Width

Including Raise Face

If Necessary

If Applicable

** Wafer Style Bolting

Raised

Face

Flange

Washer

**Minimum Bolt

Engagement

Must Be Equal to

Diameter of Bolt

Gasket

+ + + +

Width

Seat Retainer

Gasket

Seat

Retainer

Width

Side ONLY!

Seat Retainer

Gasket

Valve Body

**Minimum Bolt Engagement Must Be Equal to Diameter of Bolt

Washer

Width

Seat Retainer

Gasket

Washer

Minimum Bolt

Engagement

Equal to

Bolt Diameter

Raised Face Flange

Length

=

Bolt

Flange

Width x2

Including Raise Face

If Applicable

+ + + +

Flat Face

Flange

Washer

Gasket

Width

x2

Valve Face to Face

Valve

Face to

Face

Note: Please refer to Appropriate Bray Technical

** Note: Please refer to Appropriate Bray Dimensional Drawings for Dimensions and Bolting information

Drawings for specific valve drilling information . for the highlighted holes.

Applies to Wafer and Lug Valves as follows:

ASME Class 150 = 26” Valves and larger

ASME Class 150 26” Valves and larger ASME Class 300 14” Valves and larger

ASME Class 300 = 14” Valves and larger ASME Class 600 10” Valves and larger

ASME Class 650 = 10” Valves and larger

Washer

Width

x2

Width

of Nut

x2

Flat Face

Flange

Washer

4 Threads

+

(2 Per Side)

=

Overall Length

Please refer to ASME B-16.5 or B-16.47 for Flange and Bolt Dimension Information

* Double flange style bolting not shown. ** Lug Threads may be tapped from both sides and therefore tap may not be continuous.

Flange Bolting : 23

All information herein is proprietary and condential and may not be copied or reproduced without the expressed written consent of BRAY INTERNATIONAL, Inc. The technical data herein is for general information only. Product suitability should be based solely upon customer’s detailed knowledge and experience with their application.

Bray 40, 41 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual