Bray/McCannalok High Performance Butterfly Valves Technical Manual

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1 Bray/McCannalok High Performance Butterfly s TM123-6/1/215

2 TABLE OF CONTENTS Seating & Unseating Torques 1 ASME 15 - Torques (Lb-in) 2 ASME 15 - Torques (Lb-in) 3 ASME 3 - Torques (Lb-in) 4 ASME 6 - Torques (Lb-in) 5 ASME 15 - Torques (N-m) 6 ASME 15 - Torques (N-m) 7 ASME 3 - Torques (N-m) 8 ASME 6 - Torques (N-m) 9 Dynamic Torques 1 Dynamic Torque Coefficient 11 Subchoked and Choked Flow 12 Subchoked Liquid Flow, Line-size 13 Choked Gas Flow, Reduced-size 13 Maximum Allowable Stem Torques (Lb-in)* 14 Maximum Allowable Stem Torques (N-m)* 15 Sizing Coefficients (Cv) 16 ASME 15 Series 4/41/4A - Sizing Coefficient (Cv) 16 ASME 3 Series 42/43/4B - Sizing Coefficient (Cv) 17 ASME 6 Series 44/45 - Sizing Coefficient (Cv) 17 Sizing Coefficients (Kv) 18 ASME 15 Series 4/41/4A - Sizing Coefficient (Kv) 18 ASME 3 Series 42/43/4B - Sizing Coefficient (Kv) 19 ASME 6 Series 44/45 - Sizing Coefficient (Kv) 19 Pressure-Temperature Charts - Standard McCannalok s 2 Pressure-Temperature Charts - Firesafe McCannalok s 22 Pressure Temperature Charts - Cryogenic McCannalok s 23 Examples of Typical Flange to Bolting 25 For information on this product and other Bray products please visit us at our web page -

3 SEATING & UNSEATING TORQUES orientation to the flow of media affects the torque. Torque values are presented in two categories: FLOW Seat Retainer UPSTREAM FLOW Seat Retainer DOWNSTREAM 1

4 Inches ASME 15 - Torques (Lb-in) Series 4/41/4A Standard - Differential Pressure (psig) Less than 15 psig >15-2 psig >2-25 psig > psig Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream 2 Please Consult Factory , ,1 84 1,2 8 1,28 1,5 1,4 1,7 1,5 1,95 1,57 2,1 1 2,4 2,8 2,64 3,3 2,82 3,76 2,87 4,1 12 3,5 4,1 4, 5, 4,4 5,9 4,55 6,5 14 5,4 6,3 5,92 7,4 6,4 8,5 6,65 9,5 16 7,7 9,1 9,4 11,3 1,1 13,5 1,5 15, 18 11,9 14, 13,6 17, 15, 2, 15,4 22, 2 15,3 18, 17,1 21,3 18,5 24,7 18,9 27, 24 24,65 29, 27,68 34,6 3, 4,1 3,8 44, 26 24,65 29, 27,68 34,6 3, 4,1 3,8 44, 28 34,85 41, 37,6 47, 44,3 59,2 44,5 63,5 3 39,95 47, 42,96 53,7 5,8 67,7 52,5 75, 32 45, 53, 48,8 61, 57,6 76,8 58,8 84, 34 45, 53, 48,8 61, 57,6 76,8 58,8 84, 36 54, 64, 64,8 81, 73,5 98, 77, 11, 4 62, 73, 73,6 92, 82,5 11, 84,7 121, 42 71, 83, 84, 15, 95,25 127, 11, 143, 48 98, 115, 121,6 152, 142,5 19, 151,9 217, , 16, 169,6 212, 198, 265, 211,4 32, 6 Please Consult Factory 2

5 ASME 15 - Torques (Lb-in) Series 4/41/4A Fire Safe - Differential Pressure (psig) Less than 15 psig >15-2 psig >2-25 psig > psig Inches Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream ,5 91 1,1 5 1,42 1,5 1,47 1,63 1,5 1,75 1,6 1,85 6 1,66 1,75 1,69 1,88 1,8 2, 1,9 2,1 8 2,6 2,8 2,69 2,95 2,75 3,1 2,86 3,2 1 3,9 4,2 4,1 4,53 4,25 4,86 4,4 5,1 12 6,5 6,9 6,6 7,35 6,7 7,79 6,9 8, ,3 13, 12,6 14, 13,2 15,5 13,6 17, 16 15,2 16, 15,8 17,6 16,3 19,2 16,32 2, , 19, 18,9 21, 19, 22,5 19,2 24, 2 21,8 23, 22,5 25, 23,8 28, 28,8 36, 24 31, 33, 34,2 38, 37,4 44, 5,4 63, Please Consult Factory Series 4/41/4A Metal Seated - Differential Pressure (psig) ,271 1,347 1,32 1,474 1,35 1,579 1,445 1, ,496 1,582 1,528 1,7 1,615 1,86 1,71 1, ,343 2,59 2,432 2,661 2,489 2,781 2,563 2, ,52 3,772 3,711 4,77 3,88 4,369 3,982 4, ,863 6,176 5,966 6,652 6,3 7,3 6,189 7, ,119 11,752 11,43 12,614 11,946 14,12 12,294 15, ,726 14,368 14,22 15,928 14,735 17,299 14,77 18, ,236 17,43 17,67 18,816 17,195 2,363 17,338 21, ,685 2,723 2,34 22,575 21,491 25,116 25,834 32, ,962 29,865 3,746 34,276 33,585 39,6 45,18 56,7 3 Please Consult Factory 3

6 Inches ASME 3 - Torques (Lb-in) Series 42/43/4B Standard - Differential Pressure (psig) Less than 15 psig >15-35 psig >35-55 psig >55-74 psig Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream , , 1,25 1,39 1,85 1,8 2, , 1,32 1,65 1,72 2,3 2,1 3, 8 1,58 1,85 2,48 3,1 3,23 4,3 3,7 5,3 1 2,8 3,3 4,4 5,5 5,7 7,6 7, 1, 12 4,25 5, 6,64 8,3 8,63 11,5 1,5 15, 14 7,3 8,6 1,72 13,4 13,7 18,3 15,4 22, 16 11,9 14, 17,2 21,5 21,8 29, 26,6 38, 18 15,3 18, 21,6 27, 27,1 36,1 31,5 45, 2 2,4 24, 29,4 36,7 37, 49,3 42,7 61, 24 32,3 38, 45,6 57, 57,5 76,7 66,5 95, 3 68, 8, 11,6 127, 129, 172, 147, 21, 36 11,15 119, 144, 18, 18, 24, 23, 29, 4 115,6 136, 168, 21, 222, 296, 278,6 398, ,5 15, 217,6 272, 321, 428, 43,2 576, 54 Please Consult Factory Series 42/43/4B Fire Safe - Differential Pressure (psig) ,1 88 1, ,1 96 1, ,8 1,2 1,275 1,5 1,36 1,7 5 1,42 1,5 2,7 2,3 2,635 3,1 2,88 3,6 6 2, 2,1 2,61 2,9 3,15 3,7 3,44 4,3 8 3, 3,15 3,87 4,3 4,675 5,5 4,96 6,2 1 6,9 7,3 9,18 1,2 11,5 13, 12, 15, 12 1,45 11, 13,2 14,7 15,64 18,4 16,8 21, 14 18,5 19, 21,6 24, 22,1 26, 22,4 28, 16 26,6 28, 34,2 38, 37,4 44, 39,2 49, Please Consult Factory Series 42/43/4B Metal Seated - Differential Pressure (psig) , ,82 1,15 1,353 1,228 1, ,277 1,356 1,867 2,61 2,372 2,787 2,61 3, ,792 1,884 2,354 2,622 1,939 3,33 3,16 3, ,712 2,822 3,479 3,892 4,193 4,961 4,454 5, ,245 6,67 8,234 9,2 9,923 11,648 1,752 13, ,45 9,845 11,84 13,34 14,76 16,523 15,17 19, ,191 17,81 19,44 21,72 19,824 23,452 2,115 25, ,2 25,284 3,917 34,352 33,51 39,424 35,476 44, Please Consult Factory 4

7 Inches ASME 6 - Torques (Lb-in) Series 44/45 Standard - Differential Pressure (psig) Less than 15 psig >15-6 psig >6-15 psig > psig Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream ,2 1, 1, ,28 1,6 1,58 2,1 1,9 2,7 6 1,45 1,7 2,56 3,2 3,45 4,6 4,1 5,8 8 3,5 4,1 5,76 7,2 7,6 1,1 9,8 14, 1 7,1 8,3 9,6 12, 13,5 18, 16,8 24, 12 1,1 11,8 11,2 14, 19,5 26, 21, 3, 14 11,9 14, 19,2 24, 24,8 33, 3, 43, 16 14, 16,5 28,4 35,5 34,5 46, 45,5 65, 18 16,2 19, 34,4 43, 49, 65, 64,4 92, 2 21,3 25, 45,6 57, 66, 88, 87, 124, 24 33, 39, 71, 89, 94, 125, 123, 175, 3 71, 83, 137, 172, 18, 24, 217, 31, Series 44/45 Fire Safe - Differential Pressure (psig) Please Consult Factory Series 44/45 Metal Seated - Differential Pressure (psig) Please Consult Factory 5

8 mm ASME 15 - Torques (N-m) Series 4/41/4A Standard - Differential Pressure (Bar) Less than 1.3 Bar > Bar > Bar > Bar Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream 5 Please Consult Factory , ,28 1,22 1,277 1,141 1,526 1,187 1, ,345 1,582 1,537 1,921 1,695 2,26 1,74 2, ,729 2,34 1,932 2,47 2,91 2,791 2,136 3,51 6 2,785 3,277 3,128 3,91 3,39 4,531 3,48 4, ,785 3,277 3,128 3,91 3,39 4,531 3,48 4, ,938 4,633 4,249 5,311 5,6 6,69 5,29 7, ,514 5,311 4,854 6,68 5,74 7,65 5,933 8, ,85 5,989 5,514 6,893 6,59 8,678 6,644 9, ,85 5,989 5,514 6,893 6,59 8,678 6,644 9, ,12 7,232 7,322 9,153 8,36 11,74 8,71 12,43 1, 7,6 8,249 8,317 1,396 9,323 12,43 9,571 13,673 1,5 8,23 9,379 9,492 11,865 1,763 14,351 11,413 16,159 1,2 11,74 12,995 13,741 17,176 16,13 21,47 17,165 24,521 1,35 15,368 18,8 19,165 23,956 22,374 29,945 23,888 34,126 1,5 Please Consult Factory 6

9 ASME 15 - Torques (N-m) Series 4/41/4A Fire Safe - Differential Pressure (Bar) Less than 1.3 Bar > Bar > Bar > Bar mm Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream ,39 1,469 1,424 1,582 1,492 1,752 1,537 1, ,718 1,88 1,785 1,989 1,842 2,17 1,844 2, ,34 2,147 2,136 2,373 2,147 2,543 2,17 2, ,463 2,599 2,543 2,825 2,689 3,164 3,254 4,68 6 3,53 3,729 3,865 4,294 4,226 4,972 5,695 7, Please Consult Factory 9 1, 1,5 Series 4/41/4A Metal Seated - Differential Pressure (Bar) ,256 1,328 1,288 1,425 1,35 1,583 1,389 1, ,551 1,623 1,67 1,8 1,665 1,955 1,669 2, ,834 1,926 1,928 2,126 1,943 2,31 1,959 2, ,224 2,341 2,298 2,551 2,428 2,838 2,919 3, ,159 3,374 3,474 3,873 3,795 4,474 5,97 6,46 75 Please Consult Factory 7

10 mm ASME 3 - Torques (N-m) Series 42/43/4B Standard - Differential Pressure (Bar) Less than 1.3 Bar > Bar >24-38 Bar >38-51 Bar Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream , ,3 1,187 1, ,211 1,514 1,548 2,68 1,74 2, ,345 1,582 1,944 2,43 2,463 3,277 3,6 4, ,729 2,34 2,441 3,51 3,62 4,79 3,56 5,85 5 2,35 2,712 3,322 4,147 4,181 5,571 4,825 6, ,65 4,294 5,153 6,441 6,498 8,667 7,515 1, ,684 9,4 11,481 14,351 14,577 19,436 16,611 23, ,43 13,447 16,272 2,34 2,34 27,12 22,939 32,77 1, 13,63 15,368 18,984 23,73 25,86 33,448 31,482 44,974 1,2 14,48 16,95 24,589 3,736 36,273 48,364 45,562 65,88 1,35 Please Consult Factory Series 42/43/4B Fire Safe - Differential Pressure (Bar) ,37 1,153 1,249 1,469 1,356 1, ,181 1,243 1,492 1,661 1,767 2,79 1,898 2, ,4 2,147 2,441 2,712 2,497 2,938 2,531 3, ,6 3,164 3,865 4,294 4,226 4,972 4,43 5, Please Consult Factory Series 42/43/4B Metal Seated - Differential Pressure (Bar) ,4 1,121 1,316 1,215 1, ,63 1,112 1,338 1,53 1,59 1,867 1,714 2, ,829 1,93 2,196 2,454 2,24 2,65 2,273 2, ,714 2,857 3,493 3,881 3,786 4,454 4,8 4, Please Consult Factory 8

11 mm ASME 6 - Torques (N-m) Series 44/45 Standard - Differential Pressure (Bar) Less than 1.3 Bar > Bar > Bar > Bar Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream Retainer Upstream Retainer Downstream ,141 1,17 1, ,85 1,356 1,526 2,34 1,898 2, ,141 1,333 1,266 1,582 2,24 2,938 2,373 3, ,345 1,582 2,17 2,712 2,82 3,729 3,39 4, ,582 1,865 3,29 4,12 3,899 5,198 5,142 7, ,831 2,147 3,887 4,859 5,537 7,345 7,277 1, ,47 2,825 5,153 6,441 7,458 9,944 9,831 14,12 6 3,729 4,47 8,23 1,57 1,622 14,125 13,899 19, ,23 9,379 15,481 19,436 2,34 27,12 24,521 35,3 Series 44/45 Fire Safe - Differential Pressure (Bar) Please Consult Factory Series 44/45 Metal Seated - Differential Pressure (Bar) Please Consult Factory 9

12 DYNAMIC TORQUES When a media flows through a butterfly 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 butterfly 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 FLOW Seat Retainer Downstream FLOW 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 coefficient 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 Metric Gas Flow: Imperial Metric Td (Lb-in) = Ct D³ p Td (N-m) =.1 Ct D³ p Td (Lb-in) = Ct D³ Y p Td (N-m) =.1 Ct D³ Y p Dynamic Torque - Terminology Ct - dynamic torque coefficient (see graphs and tables on page 11 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. D - nominal valve size (in or mm) Fk - ratio of specific heat factor (dimensionless) Fk = k/1.4 or Fk = 1 for air k - ratio of specific heat (dimensionless) p - effective pressure drop across the valve (psi or bar) p1 - valve inlet pressure (psia or bar abs.) Td - dynamic torque (Lb-in or N-m) x - x = p/p1 Y - gas expansion factor (dimensionless) 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 1º º º º

13 DYNAMIC TORQUE COEFFICIENT Figure 1 - Seat Retainer Downstream Dynamic Torque Coefficient Angle of Opening Ct Down Ct Values with the Seat Retainer Down Stream Bray/McCannalok Dynamic Torque Coefficient Seat Retainer Downstream Figure 2 - Seat Retainer Upstream Angle of Opening Ct up Dynamic Torque Coefficient Ct Values with the Seat Retainer Up Stream Bray/McCannalok Dynamic Torque Coefficient Seat Retainer Upstream

14 SUBCHOKED AND CHOKED FLOW For Condition Use Note Subchoked Flow Pipe and Equal With Pipe Reducers Nominal Pressure Drop Ct from graphs/tables on page 2 and page 21 Nominal Ct from graphs/tables on page 2 and page 21 Pressure Drop as if valve were installed in valve-sized pipe with same flow rate Choked Flow Pipe and Equal With Pipe Reducers Nominal Ct from graphs/tables on page 2 and page 21 Actual Pressure drop through valve. Nominal Ct from graphs/tables on page 2 and page 21 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 downstream 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 Pipe and Equal With Pipe Reducers Nominal Pressure Drop Ct from graphs/tables on page 2 and page 21 Nominal Ct from graphs/tables on page 2 and page 21 Pressure Drop (and expansion factor Y) as if valve were installed in valve-sized pipe with same flow rate. In calculating Y, use the line pressure just upstream of the inlet reducer for p1 and xt from the table on page 11. Choked Flow Pipe and Equal With Pipe Reducers Nominal Gas expansion factor Y of 2/3 Ct from graphs/tables on page 2 and page 21 p = p1 Fk xt Nominal Gas expansion factor Y of 2/3 Ct from graphs/tables on page 2 and page 21 p = p1 Fk xt Use xt from the table on page 11. Use the line pressure just upstream of the inlet reducer for p1 and xt from the table page 11 in calculating p, on page

15 SUBCHOKED LIQUID FLOW, LINE-SIZE VALVE Example Calculations A 24 class 15 McCannalok is to be installed in a 24 line carrying water. It has been determined that the flow is not choked and the following pressure drops through the valve have been calculated: Estimate the maximum dynamic torque in Lb-in for the valve considering installation with the seat retainer upstream. Substituting produces following results: Thus the peak dynamic torque will occur between 3 and 4 degrees open. Verify dynamic torque at 35 degrees: Data 75 psi with the valve 2 degrees open 7 psi with the valve 3 degrees open 35 psi with the valve 4 degrees open 3.5 psi with the valve 55 degrees open 1.1 psi with the valve 6 degrees open.2 psi with the valve 7 degrees open.5 psi with the valve 8 degrees open.3 psi with the valve 9 degrees open Td = Ct D³ p 2 degrees, Td =.2 x 24³ x 75 = 2,7 Lb-in (tends to close the valve) 3 degrees, Td =.27 x 24³ x 7 = 26,1 Lb-in 4 degrees, Td =.46 x 24³ x 35 = 22,3 Lb-in 55 degrees, Td =.78 x 24³ x 3.5 = 3,8 Lb-in 6 degrees, Td =.86 x 24³ x 1.1 = 1,3 Lb-in 7 degrees, Td =.1 x 24³ x.2 = 3 Lb-in 8 degrees, Td =.32 x 24³ x.5 = 2 Lb-in 9 degrees, Td = x 24³ x.3 = -15 Lb-in (tends to open the valve) Approximate pressure drop = (7+35)/2 = 52.5 psi. The peak dynamic torque of approximately 27, Lb-in occurs at about 35 degrees open. At 35 degrees: Td =.37 x 24³ x 52.5 = 27, Lb-in 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 When the disc is out of the seat, total torque consists of dynamic torque, stem packing torque, and stem bearing torque. CHOKED GAS FLOW, REDUCED-SIZE VALVE Example Calculations 2 (DN 5) class 3 McCannalok butterfly valve is installed in a 6 mm (24 ) line flowing air and the disc is set at 45 degrees. The flow 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 p = 25.5 x 1. x.35 = 8.9 bar Td =.1 Ct D³ Y p Data Td =.1 x.114 x 5³ x.667 x 8.9 = 8,5 N-m Thus the dynamic torque at 45º open is about 8,5 N-m, and acts to close the valve. D = 5 mm Fk = 1. Ct =.114 Y =.667 for choked flow p1 = = 25.5 bar absolute, (1 atm. = 1.13 bar, i.e. about 1. bar) xt at 45º =.35 13

16 MAXIMUM ALLOWABLE STEM TORQUES (Lb-in)* Standard, Fire Safe and Metal Seated s inches ASME 15 ASME 3 ASME 6 Series S4/41/4A Series S42/43/4B Series 44/45 2 1,347 Please Consult Factory 2.5 1,968 1,968 Please Consult Factory 3 1,968 1,968 3, ,968 1,968 5,63 5 3,368 3,368 Please Consult Factory 6 3,368 5,63 9, ,544 1,292 27, ,251 18,511 64, ,454 27,818 81, ,818 64, , , ,42 221, , ,42 375, ,42 149,811 55, , ,962 82, ,811 Please Consult Factory ,381 Please Consult Factory 3 375, ,674 Please Consult Factory ,962 Please Consult Factory ,962 Please Consult Factory ,471 82, ,674 1,484, ,674 1,484, ,18 1,622, ,484,117 2,364, ,622,749 * Based on stem Material Code 54P (17-4 PH stainless steel, ASTM A564 Type 63 H115D) 14

17 MAXIMUM ALLOWABLE STEM TORQUES (N-m)* Standard, Fire Safe and Metal Seated s mm ASME 15 ASME 3 ASME 6 Series S4/41/4A Series S42/43/4B Series 44/ Please Consult Factory Please Consult Factory Please Consult Factory , ,163 3, ,158 2,91 7,33 3 1,633 3,143 9, ,143 7,33 15, ,33 15,371 25, ,187 15,371 42, ,371 16,926 62, ,926 42,478 9, ,926 Please Consult Factory 7 25,13 Please Consult Factory 75 42,478 87,187 Please Consult Factory 8 42,478 Please Consult Factory 85 42,478 Please Consult Factory 9 48,75 9, , , , , , , , , ,346 * Based on stem Material Code 54P (17-4 PH stainless steel, ASTM A564 Type 63 H115D) 15

18 VALVE SIZING COEFFICIENTS (Cv) Cv stands for Sizing Coefficient. Cv varies with the valve size, angle of opening and the manufacturer s valve style. Cv is defined as the volume of water in USGPM that will flow through a given restriction or valve opening with a pressure drop of one (1) psi at room temperature. Inches ASME 15 Series 4/41/4A - Sizing Coefficient (Cv) Disc Position (Degrees) 9º 8º 7º 6º 5º 4º 3º 2º 1º ,35 1, ,8 2,23 1,59 1, ,3 3,45 2,43 1,63 1, ,65 5,33 3,75 2,53 1,63 1, ,65 6,1 4,3 2,9 1,89 1, ,8 7,86 5,51 3,7 2,42 1,53 1, ,5 9,1 6,96 5,1 3,52 2,22 1, ,5 11,7 8,8 6,5 4,5 2,82 1, , 17,1 12,8 9,57 6,64 3,88 2, , 17,1 12,8 9,57 6,64 3,88 2, , 23,9 18,2 13,5 9,3 5,7 3,1 1, , 27,3 2,9 15,5 1,7 6,7 3,6 1, , 29,1 22,3 16,5 11,4 7,15 3,85 1, , 29,1 22,3 16,5 11,4 7,15 3,85 1, ,5 41,1 31,7 23,2 16,4 1,2 5,43 2, , 55,2 44, 33,3 23,8 15,2 8,6 3, , 58, 46,1 35, 25, 16, 9, 3, , 8,9 63,7 43,6 29,1 2, 11, 4, , 111, 87,5 6, 4, 27,5 15, 6, 1,2 6 16, 14, 15, 75, 5, 31, 17, 7, 1,4 16

19 Inches ASME 3 Series 42/43/4B - Sizing Coefficient (Cv) Disc Position (Degrees) 9º 8º 7º 6º 5º 4º 3º 2º 1º , , 1,72 1, ,65 2,25 1,74 1, , 3,4 2,5 1,69 1, ,1 3,5 2,6 1,77 1, ,8 6,54 4,55 2,97 1,84 1, ,5 8, 6,17 4,53 3,11 1,97 1, , 9,57 7,3 5,4 3,72 2,33 1, , 15,1 11,4 8,57 5,92 3,7 2, , 24,4 18,9 13,7 8,5 6, 3,23 1, , 38,1 29,2 21, 14,8 9,1 4,66 1, , 54, 42, 3, 19, 13, 7,5 2, , 74, 58, 41, 26, 17, 1, 4, Please Consult Factory Inches ASME 6 Series 44/45 - Sizing Coefficient (Cv) Disc Position (Degrees) 9º 8º 7º 6º 5º 4º 3º 2º 1º ,5 1,35 1, ,2 1,97 1,54 1, ,1 2,79 2,17 1,55 1, ,9 3,3 2,4 1,57 1, , 4,2 2,9 1,9 1, , 5, 3,9 2,8 1,9 1, , 6,9 5,3 3,9 2,7 1, , 9,3 7, 5,2 3,6 2,25 1, , 13, 1, 8,4 5,1 2,8 1,

20 VALVE SIZING COEFFICIENTS (Kv) Kv stands for Sizing Coefficient. Kv varies with the valve size, angle of opening and the manufacturer s valve style. Kv is defined as the volume of water in Cubic Meters/Hour (m3/hr) that will flow through a given restriction or valve opening with a pressure drop of one (1) bar at room temperature. mm ASME 15 Series 4/41/4A - Sizing Coefficient (Kv) Disc Position (Degrees) 9º 8º 7º 6º 5º 4º 3º 2º 1º , ,388 1,92 1, ,668 2,943 2,73 1, ,672 4,546 3,199 2,158 1, ,525 5,23 3,668 2,474 1,612 1, ,359 6,75 4,7 3,156 2,64 1, ,957 7,762 5,937 4,35 3,3 1,894 1, ,516 9,98 7,56 5,545 3,839 2,45 1, ,6 14,586 1,918 8,163 5,664 3,31 1, ,6 14,586 1,918 8,163 5,664 3,31 1, ,884 2,387 15,525 11,516 7,933 4,862 2,644 1, ,296 23,287 17,828 13,222 9,127 5,715 3,71 1, ,2 24,822 19,22 14,75 9,724 6,99 3,284 1, ,2 24,822 19,22 14,75 9,724 6,99 3,284 1, ,371 35,58 27,4 19,79 13,989 8,71 4,632 1, , 52,886 47,86 37,532 28,45 2,31 12,966 7,336 3, ,5 55,445 49,474 39,323 29,855 21,325 13,648 7,677 3, ,2 77,623 69,8 54,336 37,191 24,822 17,6 9,383 3, ,35 16,625 94,683 74,638 51,18 34,12 23,458 12,795 5,118 1,24 1,5 136,48 119,42 89,565 63,975 42,65 26,443 14,51 5,971 1,194 18

21 mm ASME 3 Series 42/43/4B - Sizing Coefficient (Kv) Disc Position (Degrees) 9º 8º 7º 6º 5º 4º 3º 2º 1º ,76 1,467 1, ,26 1,919 1,484 1, ,412 2,9 2,133 1, ,497 2,986 2,218 1,51 1, ,653 5,579 3,881 2,533 1, ,14 6,824 5,263 3,864 2,653 1, ,383 8,163 6,227 4,66 3,173 1,987 1, ,354 12,88 9,724 7,31 5,5 3,156 1, ,737 2,813 16,122 11,686 7,251 5,118 2, ,385 32,499 24,98 17,913 12,624 7,762 3, ,5 51,18 46,62 35,826 25,59 16,27 11,89 6, ,2 7,799 63,122 49,474 34,973 22,178 14,51 8, ,35 Please Consult Factory mm ASME 6 Series 44/45 - Sizing Coefficient (Kv) Disc Position (Degrees) 9º 8º 7º 6º 5º 4º 3º 2º 1º ,28 1, ,877 1,68 1, ,644 2,38 1,851 1, ,327 2,815 2,47 1, ,265 3,583 2,474 1,621 1, ,118 4,265 3,327 2,388 1,621 1, ,824 5,886 4,521 3,327 2,33 1, ,383 7,933 5,971 4,436 3,71 1,919 1, ,795 11,89 8,53 7,165 4,35 2,388 1,

22 PRESSURE-TEMPERATURE CHARTS - STANDARD MCCANNALOK VALVES Figure 3 Stainless Steel Body with PTFE Seat Temperature ºF Pressure Bar ASME 15 ASME 3 ASME Pressure psig 2 1 Temperature ºC Carbon Steel Body with PTFE Seat Temperature ºF Pressure Bar ASME 15 ASME 3 ASME Pressure psig Temperature ºC Note: s in all pressure classes are rated to a maximum pressure rating of 15 psig (1.3 bar) in steam service applications. 2

23 PRESSURE TEMPERATURE CHARTS - STANDARD MCCANNALOK VALVES Figure 4 Stainless Steel Body with RTFE Seat Temperature ºF Pressure Bar ASME 15 ASME 3 ASME Pressure psig 2 1 Temperature ºC Carbon Steel Body with RTFE Seat Temperature ºF Pressure Bar ASME 15 ASME 3 ASME Pressure psig Temperature ºC Note: s in all pressure classes are rated to a maximum pressure rating of 15 psig (1.3 bar) in steam service applications. 21

24 PRESSURE-TEMPERATURE CHARTS - FIRESAFE MCCANNALOK VALVES Figure 5 Carbon Steel Body with Inconel Seat Pressure Bar Temperature ºF ASME 15 ASME 3 ASME Temperature ºC Pressure psig Stainless Steel Body with Inconel Seat Pressure Bar Temperature ºF ASME 15 ASME 3 ASME Temperature ºC Pressure psig Cryogenic with 22

25 PRESSURE TEMPERATURE CHARTS - CRYOGENIC MCCANNALOK VALVES Figure 6 Cryogenic with Stainless Steel Body and Polar Seat Pressure Bar Temperature ºF Temperature ºC ASME 15 ASME 3 ASME Pressure psig Low Temperature with Carbon Steel Body and Polar Seat Pressure Bar Temperature ºF ASME 15 ASME 3 ASME Temperature ºC Pressure psig 23

26 24

27 EXAMPLES OF TYPICAL FLANGE TO VALVE BOLTING* Examples of Typical Flange to Bolting* Lug Style Bolting Seat Retainer Gasket Gasket Raised Face Flange Washer **Minimum Bolt Engagement Must Be Equal to Diameter of Bolt Body Raised Face Flange Washer ** Minimum Bolt Engagement Must Be Equal to Diameter of Bolt Flange Width Including Raised Face If Applicable Gasket Width Seat Retainer Width Seat Retainer Side ONLY! Washer Width Minimum Bolt Engagement Equal to Bolt Diameter Bolt Length Wafer Style Bolting Gasket Seat Retainer Gasket Flat Face Flange Flat Face Flange Washer Face to Face Washer Flange Width x2 Including Raised Face If Applicable Gasket Width x2 Face to Face Washer Width x2 Width of Nut x2 4 Threads (2 Per Side) Overall Length Note: Please refer to Appropriate Bray Dimensional Drawings for specific valve drilling information. Applies to Wafer and Lug s as follows: ASME Class s and larger ASME Class 3 14 s and larger ASME Class 6 1 s and larger Please refer to ASME B-16.5 or B 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. 25

28 All statements, technical information, and recommendations in this bulletin are for general use only. Consult Bray representatives or factory for the specific requirements and material selection for your intended application. The right to change or modify product design or product without prior notice is reserved. Patents issued and applied for worldwide. Bray is a registered trademark of Bray International, Inc. 215 Bray International, Inc. All rights reserved. TM_123_S4_6_1_215 Bray Controls Division of Bray International, Inc Westland East Blvd. Houston, Texas 7741 Tel:

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