BVG, BVGF, BVA, BVAF, BVH, BVHS, BVHM
Contents
1. toy Je F VION BIO SSH gt S QO T SETS o a lt SS Q Q Q 260 150 501 404 100 32 15 80 24 60 20 50 16 40 mE 88 8 20 4 10 al 8 25 6 2 5 16 L 4 12 3 0 8 2 0 4 04 06 2g g 5 8 10 20 30 40 60 100 200 300 500 1000 2000 4000 10000 20000 02 04 06 1 2 3 5 20 30 40 60 100 200 300 600 1000 2000 4000 10000 20000 04 06 1 2 8 5 20 3040 60 100 200 300 600 1000 2000 4000 10000 20000 30000 Q Im hl 10 20 30 40 5060 80100 200 300 500 700 1000 2000 3000 5000 7000 10000 2000030000 50000 100000 200000 500000 penu n natural gas dv 0 62 LPG dv 1 56 air dv 1 00 The characteristic curves are measured at 15 C 59 F with a measurement set up in accordance with the standard EN 13611 EN 161 This involves measuring the pressure 5 x DN upstream and downstream of the unit under test The pressure drop of the pipe is also measured but is not compensated for Left curve leakage volume at a 0 opening angle Right curve max flow rate at a 90 opening angle BVGF BVA BVAF BVH BVHS BVHM Edition 09 12 18 ki ron i 5 1 4 ky values With full2. SO S 9 COE ges ef PP SISO SRS Qoo SS FF S ee 5 92999999 BSS 68 amp 5 150 amp 100 Q lt 80 60 50 40 30 20 e 10 8 6 5 4 3 2 1 0 4 06 2 3 5 8 10 30 40 60 00 200 300 500 000 2000 4000 10000 20000 0 2 04 0 6 1 2 3 5 8 10 20 30 40 60 100 200 300 600 1000 2000 4000 10000 20000 d i i TERI TI E 0 4 06 1 2 3 5 i 8 40 20 30 40 60 100 200 300 600 1000 2000 4000 10000 20000 30000 natural gas dv 0 62 dv 1 56 air dv 1 00 The characteristic curves are measured at 15 C 59 F with a measurement set up in accordance with the standard EN 13611 EN 161 Q m h This involves measuring the pressure 5 x DN upstream and downstream of the unit under test The pressure drop of the pipe is also measured but is not compensated for Left curve leakage volume at a 0 opening angle Right curve max flow rate at a 90 opening angle BVGF BVA BVAF BVH BVHS BVHM Edition 09 12 5 1 3 With 2 x reduced bore hl A
3. 7 2 Flow velocities in pipes xia AR S E 5 gt 200007 100 L 16000 E 12000 60 100007 50 8000 40 60007 30 4000 20 2000 10 1600 8 1200 6 1000 5 800 4 600 3 400 2 200 1 1 2 20 30 40 5060 80 100 200 300 400 600 8001000 2000 3000 6000 10000 20000 Q m3 h T T T T T T T T T T T T T T T 40 5060 80 100 200 300 400 500 700 1000 2000 3000 5000 7000 10000 20000 30000 50000 100000 200000 Q ISCFHI It is recommended that flow velocities of 30 m s 9505 ft min are not exceeded when using the valve on thermoprocessing equipment Operating flow rate The details on the internal diameter correspond to the con ventional dimensions for gas pipes as stipulated in the DIN standards DIN 2440 and DIN 2450 Different cross sections will result in flow velocities that differ correspondingly BVGF BVA BVAF BVH BVHS BVHM Edition 09 12 28 0000000000 paii Ae 0 50 60 Hz
4. E 3 ee S all amp 161 14 121 id 0 81 0 61 0 41 021 di 0 5 15 2 25 3INm Torque BVG BVA 0 5 1 1 5 2 lbf fil 50 60 Hz a i 150 So t D RT EE a 5 gt 2 S 167 14 100 I 42 90 A 241 SS ii 80 S 14 70 081 60 50 0 61 a KY 0 41 30 20 0 24 i 10 0 0 is 5 25 8 35 4 Torque BVGF BVAF 15 2 15 7 3 Actuator selection Butterfly valves BVG BVGF BVA BVAF and BVH are controlled by actuator IC 20 or IC 40 Butterfly valve BVHS is controlled by actuator IC 40S Butterfly valve BVHM is controlled by solenoid actuator MB 7 7 3 1 IC 20 IC 40 The characteristic curves relate to the maximum torque pro duced by the flow rate In general maximum torque is reached at approx 70 IC 20 The running time of the actuator per 90 depends on the required torque Example Any running time could be used for a butterfly valve BVG of nominal diameter DN 65 The running time is reduced by a factor of 0 83 at a frequency of 60 Hz on the actuator IC 40 Torque and running time are mutually independent on actua tors IC 40 and IC 40S BVGF BVA BVAF BVH BVHS BVHM Edition 09 12 29 k Kron A 50 60 Hz Pioo 1091
5. 0 0 5 5 2 725 3 Torque 4 BVH BVHS BVHM 0 0 5 1 15 2 lbf ft MB 7 N MB 7 R MB 7 1 7 3 2 MB 7 MB 7 N quick opening lt 1 quick closing 1 s MB 7 R slow opening 2 4 s slow closing 2 4 s 7 L slow opening 2 4 5 quick closing 1 s BVGF BVA BVAF BVH BVHS BVHM Edition 09 12 30 0600000000000000000000000000009000990999 8 Accessories 8 1 For BVG BVA Adapter set with square shaft This adapter set is required if the butterfly valve is mounted onto actuators other than IC The actuator must have a square shaft end Adapter set Order No Fitted 74921675 Enclosed 74921674 Adapter set with free shaft end This adapter set is required if the butterfly valve is mount ed onto actuators other than IC The actuator must have a 10 mm shaft end Adapter set Order No Fitted 74921677 Enclosed 74921676 Adapter set with manual adjustment This adapter set is required if the butterfly valve is to be opened and closed manually The valve can be locked in position Adapter set Order No Fitted 74921679 Enclosed 74921678 BVGF BVA BVAF BVH BVHS BVHM Edition 09 12 31 600000000000000000000000000000900099999 hl m 8 2 For BVG BVGF BVA BVAF BVH and BVHS Fastening set To attach an IC 20 or IC 40 to the butterfly valve If the actua tor and butterfly valve are pre assembled the fastening se
6. schroder 5 2 1 ky values Opening angle 0 10 20 30 40 50 60 70 80 90 40 0 4 6 4 2 18 24 31 38 47 53 55 BVH 50 0 5 10 19 29 40 56 73 95 116 120 BVH 65 0 7 12 21 32 48 67 92 128 156 160 BVH 80 0 8 20 34 52 73 103 143 192 238 250 BVH 100 1 1 27 47 74 m 170 255 374 525 560 BVHM 40 0 4 6 4 12 18 24 3 38 47 53 55 BVHM 50 0 5 10 19 29 40 56 73 95 116 120 BVHM 65 0 7 12 21 32 48 67 92 128 156 160 BVHM 80 1 1 20 34 52 73 103 143 192 238 250 100 DA 27 47 74 m 170 255 374 525 560 BVHS 40 0 4 6 4 12 18 24 31 38 47 53 55 BVHS 50 0 5 10 19 29 40 56 73 95 116 120 BVHS 65 0 7 12 21 32 48 67 92 128 156 160 BVHS 80 0 8 20 34 52 73 103 143 192 238 250 BVHS 100 1 27 47 74 m 170 255 374 525 560 BVGF BVA BVAF BVH BVHS BVHM Edition 09 12 21 xia AM 6 Selection 40 50 65 80 100 125 150 25 125 Z Ww 01 05 BVG BVGF e e e e e e e SS e e e BVHS e e e e e e e BVHM e e standard available Example 6 1 Type code Code Description BVG Butterfly valve for gas BVGF Clearance free butterfly valve for gas BVA Butterfly valve for air BVAF Clearance free butterfly valve for air BVH Butterfly valve for hot air and flue gas up to 450 C BVHS Butterfly valve for hot air and flue gas up to 450 C with safety closing function only in conjunction with ac
7. BVGF BVA BVAF BVH BVHM Edition 09 12 23 0 0 0 0 0 0 O 0 0 0 6 6 0 6 6 6 9 6 o o o o o o o o o o o o eee 6 2 2 BVG BVGF BVA BVAF Ap on the butterfly valve is determined using the control char acteristic a see page Glossary and the outlet pressure for normal operation pressure py A control characteristic of a 0 3 provides good control prop erties BVG BVGF BVA BVAF Q 99 0 90 Example We want to find in order to select the nominal size DN of the butterfly valve BVA for air to be used for modulating control of a gas burner Outlet pressure pg 30 mbar Air flow rate at standard conditions Q 1000 m3 h Control characteristic a 0 3 pg Ne xia mi 0 3 x 30 mbar 12 9 mbar 13 mbar 1 0 3 The flow velocity in the pipes exercises a considerable influ ence on the pressure loss and the noise development When designing the butterfly valve it is recommended that the flow velocity of 30 m s is not exceeded see page 28 Flow ve ocities in pipes A flow rate at standard conditions 1000 m3 h results in a pipe of DN 100 Select the required nominal size from the flow rate diagram on the basis of the desired flow rate Q and the calculated Apio9 APi00 Result A butterfly valve with 1 x reduced bore is selected in
8. Pu 43 mbar 0 3 mbar 42 7 mbar 0 0427 bar Q ky c Pn V Apir Pd LF absolute ku 48 1 298 308 V7514 V 0 0427 1 0133 ky 8 03 Select a similar ky value in the ky values table for the BVH BVHS design For a 10 opening angle the selected ky value is gt 12 After linear interpolation of the values between 0 10 the selected opening angle of the butterfly valve BVH for low fire is ky 8 gt approx 6 The opening angle in the low fire range should not be less than 2 in order to achieve good control properties Result The opening angle for the butterfly valve BVH of DN 65 and control range 1 10 is 6 in the low fire range and 76 in the high fire range A BVGF BVA BVAF BVH BVHS BVHM Edition 09 12 26 7 Project planning information 7 1 Installation The butterfly valve must be installed in between two flanges in accordance with EN 1092 PN 16 The length of the inlet and outlet section should be 2x DN When designing the pipe it is recommended that a flow veloc ity of 30 m s 5905 ft min is not exceeded see page Flow velocities in pipes Installation position 18 f t The actuator must be installed in the vertical or horizontal position not upside down When built into a vertical pipe dirt may accumulate on the s
9. 8 58 9 1 1 With 1 x reduced bore Type BVG BVA 40 32 IC BVG BVA 50 40 IC BVG BVA 65 50 IC BVG BVA 80 65 IC BVG BVA 100 80 IC BVG BVA 125 100 IC BVG BVA 150 125 IC Weight kg Ibs 2 7 5 95 2 9 6 39 3 2 7 05 3 4 7 49 3 6 7 93 4 1 9 04 4 4 9 70 Type BVG BVA 40 25 BVG BVA 50 32 IC BVG BVA 65 40 IC BVG BVA 80 50 IC BVG BVA 100 65 IC BVG BVA 125 80 IC BVG BVA 150 100 IC 9 1 2 With 2 x reduced bore Weight kg Ibs 2 8 6 17 3 0 6 61 3 2 7 05 3 5 7 70 3 8 8 38 4 4 9 70 4 9 10 80 BVGF BVA BVAF BVH BVHS BVHM Edition 09 12 34 9 2 Dimensions BVGF BVAF 20 IC 40 Type BVGF BVAF 40 IC BVGF BVAF 50 IC BVGF BVAF 65 IC BVGF BVAF 80 IC BVGF BVAF 100 IC BVGF BVAF 125 IC BVGF BVAF 150 IC 9 2 1 With full bore nominal diameter Type BVGF BVAF 40 IC BVGF BVAF 50 IC BVGF BVAF 65 IC BVGF BVAF 80 IC BVGF BVAF 100 IC BVGF BVAF 125 IC BVGF BVAF 150 IC Weight kg Ibs 3 5 7 70 3 7 8 16 4 0 8 82 4 1 9 04 4 4 9 70 4 9 10 80 H2 H3 DIN ANSI 01 DI D2 mm mm inchi Minen eS E LER inch inch inch ja 52 57 5 28 2 05 3 62 3 62 3 37 138 59 107 107 105 5 43 2 32 4 21 4 21
10. bination with the actuator IC 40 it is possible to move the valve disc to the required angle with almost zero hysteresis BVHS The butterfly valve BVHS with safety closing function see page is used with the actuator IC 40S in systems where it is important that in the event of a mains voltage fail ure the valve closes preventing air streaming into the furnace without being under control In order to maximize the service life of the butterfly valve the safety closing function should be used only for the scheduled closing function and not for controlled shut down or for inter mittent switching of the burner BVHM Well suited to intermittent operation due to the large number of operating cycles in conjunction with the solenoid actuator MB 7 BVGF BVA BVAF BVH BVHS BVHM Edition 09 12 A Butterfly valve with actuator Roller hearth kiln in the ceramics industry Forging furnace BVGF BVA BVAF BVH BVHS BVHM Edition 09 12 5 A VAG IC 20 BVG IC 20 BVA BVA IC 20 BVA BVA 1 1 Example of applications 1 1 1 BVG BVGF lambda correction If the burner is to be operated with excess gas or air for rea sons of the process operation the but
11. kg litres m s US unit x SCFH psi psi WC inch lbs gal ft s C F 32 5 9 F C x 9 5 32 multiplier 35 31 14 5 0 0145 0 39 0 039 22 0 26 3 28 multiplier 0 0283 0 0689 68 89 2 54 25 4 0 45 3 79 0 3048 US unit SCFH psi psi WC inch lbs gal ft s SI unit m3 h bar mbar mbar mm kg litres m s A BVGF BVA BVAF BVH BVHS BVHM Edition 09 12 38 828888 10 Maintenance cycles The butterfly valves BVG BVGF BVA BVAF BVH BVHM and BVHS require little maintenance We recommend a function check once a year BVG BVGF check for external tightness once a year BVGF if operated with biologically produced methane a tightness test and function check must be carried out every six months A BVGF BVA BVAF BVH BVHM Edition 09 12 39 11 Glossary 11 1 Control characteristic valve authority In order for the butterfly valve to be able to influence the flow rate a proportion of the pressure loss Ap from the entire system has to be caused by the butterfly valve Taking into consideration that the overall pressure loss Ap should be kept to a minimum valve authority a 0 3 is recommended for the butterfly valve Thi
12. tion They are used in systems where it is important that in the event of a mains voltage failure the valve closes preventing air streaming into the furnace without being under control A pre tensioned spiral spring moves the valve disc against the mechanical stop of the butterfly valve in the event of a solenoid valve motor defect within the closing time The safety closing function of butterfly valve BVHS is possible only in conjunction with the actuator IC 40S BVGF BVA BVAF BVH BVHS BVHM Edition 09 12 4 Replacement possibilities for butterfly valves 4 1 DKG is to be replaced by BVG krom schroder Type DK Butterfly valve Butterfly valve ERN 25 DN 25 32 DN 32 40 DN 40 DN 65 40 50 DN 50 DN 65 50 65 DN 65 DN 65 65 100 DN 100 DN 65 100 125 DN 125 DN 65 125 150 DN 150 DN 65 150 15 125 Reduced to nominal diameter DN Reduced to nominal diameter DN 25 125 T product For fitting between two DIN flanges For fitting between two ANSI flanges For fitting between two flanges to EN 1092 For fitting between two ANSI flanges Py max 300 mbar 4 35 psi py max 500 mbar 7 25 psi With manual adjustment With square shaft With free shaft end Adapter set with manual adjustment Adapter set with square shaft Adapter set with free shaft end Temperature range
13. intermittent operation The butterfly valve BVHM features flow adjustment for low fire and high fire rate The valve stop ensures low leakage rates With fitted solenoid actuator MB 7 the valve is suitable for intermittent operation BVGF BVA BVAF BVH BVHS BVHM Edition 09 12 0 0 0000000006006006 06006006006000600202020200 2 Certification EC type tested and certified pursuant to Gas Appliances Directive 2009 142 EC in conjunction with EN 161 BVHM FM approved APPROVED Factory Mutual Research Class 7400 Process Control Valves Designed for applications pursuant to NFPA 85 and NFPA 86 www approvalguide com Approval for Russia BVG BVA BVH BVHS BVHM C Certified by Gosstandart pursuant to GOST TR Approved by Rostekhnadzor Scan of the approval for Russia RUS see docuthek com Elster Kromschr der 3 Kromschr der LBE 3 Products 3 0 alves and butterfly valves 3 Butterfly valves BVG BVA BVH Kind of document Certificate gt BV B00069 nationales Zertifikat Russland RUS e A BVGF BVA BVAF BVH BVHS BVHM Edition 09 12 8828888 3 Function BVG BVA BVAF BVH BVHS The butterfly valves are designed on the basis of the free flow principle no defl
14. 142 5 6 175 6 9 DIN D2 mm inch 162 6 4 ANSI 0 mm inch 92 3 6 107 4 2 127 5 0 142 5 6 175 6 9 D2 mm inch 85 7 3 4 105 4 1 124 4 9 137 5 4 Weight kg Ibs 5 4 11 9 5 9 13 0 6 8 15 0 7 3 16 1 8 5 18 7 BVGF BVA BVAF BVH BVHS BVHM Edition 09 12 9 4 Dimensions MB 7 BVHM Type BVHM 40 MB 7 BVHM 50 MB 7 BVHM 65 MB 7 BVHM 80 MB 7 BVHM 100 MB 7 H2 mm inch 234 9 21 239 9 40 243 9 56 254 10 00 265 10 43 H3 mm inch 46 1 81 54 2 12 64 2 51 7112 80 88 3 46 H4 mm linch 91 5 3 58 91 5 3 58 91 5 3 58 91 5 3 58 91 5 4 33 DIN 01 mm inch 92 3 6 107 4 2 127 5 0 142 5 6 175 6 9 D2 mm inch 162 6 4 ANSI 01 02 mm inch mm inch 92 3 6 107 4 2 127 5 0 142 5 6 175 6 9 85 7 3 37 105 4 13 124 4 88 137 5 39 F mm inch 92 3 62 92 3 62 92 3 62 92 3 62 92 3 62 xia A Weight kg Ibs 11 79 26 00 12 17 26 83 13 05 28 77 13 59 29 96 14 97 33 00 BVGF BVA BVAF BVH BVHS BVHM Edition 09 12 37 0e0 0 000000000000000090000000090002929020202525252525252 5 5 9 5 Conversion factors SI unit x m3 h bar mbar mbar mm
15. 4 13 Ke eo a I 24 5 74 2 72 5 00 5 00 4 88 153 76 142 142 137 6 02 2 99 5 59 5 59 5 39 163 86 162 162 6 41 3 39 6 38 6 38 7 176 101 192 192 6 93 3 98 7 56 7 56 D 188 114 218 218 7 40 4 49 8 58 8 58 9 2 2 With 1 x reduced bore Weight kg Ibs Tine 3 5 7 70 BVGF BVAF 40 32 3 6 7 93 BVGF BVAF 50 40 IC 3 8 8 38 BVGF BVAF 65 50 IC 4 0 8 82 BVGF BVAF 80 65 IC 4 1 9 04 BVGF BVAF 100 80 IC 4 4 9 70 BVGF BVAF 125 100 IC 47 10 36 BVGF BVAF 150 125 5 2 11 46 2 0 kg 4 4 165 9 2 3 With 2 x reduced bore Type BVGF BVAF 40 25 IC BVGF BVAF 50 32 IC BVGF BVAF 65 40 IC BVGF BVAF 80 50 IC BVGF BVAF 100 65 IC BVGF BVAF 125 80 IC BVGF BVAF 150 100 IC Weight kg Ibs 3 6 7 93 3 8 8 38 4 0 8 82 4 3 9 48 4 6 10 14 5 2 11 46 5 7 12 57 BVGF BVA BVAF BVH BVHS BVHM Edition 09 12 35 9 3 Dimensions BVH BVHS IC 20 IC 40 Type BVH BVHS 40 IC BVH BVHS 50 IC BVH BVHS 65 IC BVH BVHS 80 IC BVH BVHS 100 IC H2 mm inch 234 9 2 239 9 4 243 9 5 254 10 265 10 4 H3 mm inch 46 1 8 54 2 1 64 2 5 7112 8 88 3 4 01 mm inch 92 3 6 107 4 2 127 5 0
16. 60 C 140 F Temperature range 60 C 140 F With disc clearance With disc clearance standard available Example Example BVG BVGF BVA BVAF BVH BVHS BVHM Edition 09 12 4 2 is to be replaced by BVA er Type Type Butterfly valve Butterfly valve 25 DN 25 32 DN 32 lt DN40 DN4O ar 50 DN 50 DN 50 50 65 DN 65 DN 65 65 80 DN 80 DN 80 80 100 DN 100 DN 100 100 125 DN 125 DN 125 125 150 DN 150 DN 150 150 15 125 Reduced to nominal diameter DN Reduced to nominal diameter DN 25 125 T product For fitting between two DIN flanges For fitting between two ANSI flanges For fitting between two flanges to EN 1092 For fitting between two ANSI flanges 300 mbar 4 35 psi py max 500 mbar 7 25 psi With manual adjustment With square shaft With free shaft end Adapter set with manual adjustment Adapter set with square shaft Adapter set with free shaft end Of Temperature range 100 C 210 Temperature range 60 C 140 F With disc clearance With disc clearance H V standard available Example Example BVGF BVA BVAF BVH BVHS BVHM Edition 09 12 12 82888 4 3 K i
17. Butterfly valves BVG BVGF BVA BVAF BVH BVHS BVHM Technical Information GB 3 Edition 09 12 Ge ce APPROVED For gas air hot air and flue gas Low leakage rate and pressure loss High control accuracy BVG and BVA with reduced nominal diameters Butterfly valve can be mounted directly onto the actuator IC 20 or IC 40 Suitable for intermittent operation BVGF BVAF work clearance free Low maintenance operation EC type tested and certified BVHM FM approved BVG certified pursuant to GOST TR Korn der Contents Butterfly valves BVG BVGF BVA BVAF BVH BVHS 1 a Hed Re Re 2 VADDIICODOB a Labore DS 3 1 1 Example of 6 1 1 1 BVGF lambda 6 1 1 2 BVA BVAF adjusting the burner capacity 6 1 1 3 BVH hot air compensation 7 1 1 4 BVHS safety closing function in the event of a mains voltage TOWNE s e a dees pee ERO M Ain Dueh 7 1 1 5 BVHM large number of operating cycles for intermittent en m 8 2 Ceblficalloh 9 SUNCOM is 10 4 Replacement possibilities for butterfly valves 4 1 DKG is be replaced by BVG 4 2
18. N 40 to 100 Housing material GGG valve disc stainless steel drive shaft stainless steel Inlet pressure py max 150 mbar 2 16 psi Pressure differential between inlet pressure p and outlet pressure max 150 mbar 2 16 psi Medium temperature 20 to 450 C 4 to 840 F Ambient temperature 20 to 60 C 4 to 140 F BVGF BVA BVAF BVH BVHS BVHM Edition 09 12 33 9 1 Dimensions BVG BVA IC 20 IC 40 Type BVG BVA 40 IC BVG BVA 50 IC BVG BVA 65 BVG BVA 80 IC BVG BVA 100 IC BVG BVA 125 IC BVG BVA 150 IC With full bore nominal diameter Type BVG BVA 40 IC BVG BVA 50 IC BVG BVA 65 IC BVG BVA 80 IC BVG BVA 100 IC BVG BVA 125 BVG BVA 150 IC H2 H3 mm mm inch inch 96 52 3 78 2 05 100 59 3 94 2 32 108 69 4 25 2 72 115 76 4 53 2 99 125 86 4 92 3 39 138 101 5 43 3 98 150 114 5 9 4 49 Weight kg Ibs 2 7 5 95 2 8 6 17 3 0 6 61 3 2 7 05 3 6 7 93 3 9 8 60 DIN 01 inch 92 3 62 107 4 21 127 5 142 5 59 162 6 38 192 7 56 218 8 58 ANSI DI D2 mm mm inch inch 92 857 3 62 3 37 107 105 4 21 4 13 9m 5 4 88 142 137 5 59 5 39 162 6 38 192 756 218
19. S So SV _ SOS eS oes lt 2 I e p Sg 9 c C 9 50 40 100 32 80 24 60 20 50 16 40 10 30 8 20 4 10 3 8 2 6 2 5 16 4 12 3 0 8 2 0 4 04 0 6 1 2 3 5 8 10 20 30 40 60 00 200 300 500 1000 2000 4000 10000 20000 0 2 0 4 0 6 1 2 3 5 8 10 20 30 40 60 00 200 300 600 1000 2000 4000 10000 20000 04 0 6 1 2 3 5 8 10 20 30 40 60 100 200 300 600 1000 2000 4000 10000 20000 30000 Q m3 h DA 44444 _ _______1___1_ _ _ _ _ 10 20 30 405060 80100 200 300 500 700 1000 2000 3000 50007000 10000 20000 30000 50000 100000 200000 500000 1000000 Qp natural gas dv 0 62 LPG dv 1 56 air dv 1 00 The characteristic curves are measured at 15 C 59 F with a measurement set up in accordance with the standard EN 13611 EN 161 This involves measuring the pressure 5 x DN upstream and downstream of the unit under test The pressure drop of the pipe is also measured but is not compensated for Left curve leakage volume at a 0 opening angle Right curve max flow rate at a 90 opening angle BVGF BVA BVAF BVH BVHS BVHM Edition 09 12 16 5 1 2 With 1 x reduced bore A
20. VAF BVH BVHS BVHM Edition 09 12 19 5 2 Flow rate curves for BVH BVHM BVHS S gt ES oe NES So S S SS 2 SOS gt SS Ss lt AD SE Se Ss ES g Leo sol N S x S S l TDD amp a 60 150 50 40 100 32 80 244 60 20 50 16 40 o 30 8 20 4 10 3l 8 25 6 gl 5 162 4 iml g 081 2 041 1 0 05 1 2 4 5 676 10 20 30 40 60 100 200 300 500 000 2000 5000 Q m3h 7 H 20 30 50 100 200 400 1000 2000 5000 0000 20000 50000 100000 200000 Air flow rates Q SCFHI For air dv 1 00 The characteristic curves are measured at 15 C 59 F with a measurement set up in accordance with the standard EN 13611 EN 161 The pressure is measured 5 x DN upstream and downstream of the unit under test The pressure drop of the pipe is also measured but is not compensated for Left curve leakage volume at a 0 opening angle Right curve max flow rate at a 90 opening angle BVGF BVA BVAF BVH BVHS BVHM Edition 09 12 20 km
21. bore nominal diameter Opening angle 0 10 20 30 40 50 60 70 80 90 BVG BVGF BVA BVAF 40 1 0 15 3 6 7 9 13 23 37 56 77 90 BVG BVGF BVA BVAF 50 1 2 1 6 4 0 9 3 17 3 51 82 123 167 BVG BVGF BVA BVAF 65 1 7 pu 7 3 16 32 57 94 144 210 281 BVG BVGF BVA BVAF 80 2 1 3 2 9 8 24 47 83 132 202 296 405 BVG BVGF BVA BVAF 100 25 3 4 12 33 59 133 214 33 792 BVG BVGF BVA BVAF 125 3 4 7 4 25 78 145 244 385 583 910 1132 BVG BVGF BVA BVAF 150 47 13 58 132 229 369 583 882 1557 1696 With 1 x reduced bore BVG BVGF BVA BVAF 40 32 1 2 1 4 2 8 5 4 9 5 16 27 41 97 63 BVG BVGF BVA BVAF 50 40 1 1 5 3 2 7 1 13 21 34 52 73 90 BVG BVGF BVA BVAF 65 50 13 1 6 4 3 9 5 29 46 68 97 120 BVG BVGF BVA BVAF 80 65 2 0 2 4 7 0 16 31 55 89 132 185 243 BVG BVGF BVA BVAF 100 80 2 4 3 3 9 8 23 49 88 140 203 275 335 BVG BVGF BVA BVAF 125 100 2 9 5 2 17 48 103 173 262 364 478 561 BVG BVGF BVA BVAF 150 125 3 8 6 6 25 89 180 288 422 586 77 940 With 2 x reduced bore BVG BVGF BVA BVAF 40 25 RS 1 3 2 0 3 9 6 6 16 20 24 Zl BVG BVGF BVA BVAF 50 32 12 14 2 8 5 4 9 6 16 26 38 50 56 BVG BVGF BVA BVAF 65 40 1 1 15 9 9 13 20 32 46 61 7 BVG BVGF BVA BVAF 80 50 1 3 1 6 4 0 9 0 16 28 44 64 85 101 BVG BVGF BVA BVAF 100 65 2 0 29 17 92 55 86 122 162 185 BVG BVGF BVA BVAF 125 80 2 4 3 4 8 7 22 47 85 133 185 237 273 BVG BVGF BVA BVAF 150 100 2 9 4 2 15 42 95 160 237 319 397 458 BVGF BVA B
22. ection of the flow They release a cross section for the flowing medium depending on a rotary movement between 0 and 90 The butterfly valves BVG BVGF BVA and BVAF are with valve disc clearance BVH is equipped with a mechanical stop bar The valve disc of the butterfly valves BVH BVHS BVHM fea tures a twin disc and together with the mechanical stop bar ensures very low leakage BVG BVGF BVA BVAF and BVH are specifically designed to fit the Elster Kromschr der actuators IC 20 and IC 40 The butterfly valves feature very easy action Consequently the actuator requires only a low torque BVHM is tailored to the Elster Kromschr der solenoid actua tor MB 7 k BVG BVA Butterfly valves with reduced nominal diameter reduced by up to two nominal sizes can be used to achieve higher control accuracy This will mean that expensive reducing fittings will no longer be required Various adapter sets with square shaft free shaft end or lever are available as accessories see page B1 Accessories Flow rates can be set and fixed using a lever for example to limit the high fire rate on the burner A scale indicates the set angle of opening BVGF BVAF The spiral spring always pushes the valve disc in the direc tion of closing Any clearance between the actuator and the valve disc is eliminated and the control command is executed without delay BVHM BVHS The butterfly valves BVHM BVHS feature a safety closing func
23. he mounted actuator IC 20 or IC 40 they are suitable for regulating flow rates for modulating or stage controlled combustion processes BVG BVA BVG for gas BVA for air These butterfly valves can be fitted with an adapter set with square shaft free shaft end or manual adjust ment for instance Using the adapter set with manual adjustment see page flow rates can be set and fixed for example to limit the high fire rate on the burner A scale indicates the set angle of opening krom schroder Butterfly valves BVG BVGF BVA and BVAF with reduced nomi nal diameter reduced by one or two nominal sizes can be used to achieve higher control accuracy This will mean that complex reducing fittings will no longer be required BVGF BVAF Butterfly valves BVGF and BVAF work clearance free In case of change of direction the butterfly valve adjusts to the setpoint without delay The butterfly valve thus reaches the required position more quickly BVGF BVA BVAF BVH BVHS BVHM Edition 09 12 Application eee BVH BVH BVHS for hot air and flue gas The butterfly valve BVH is used for processes that require the very precise adjustment of the flow rate or low leakage In conjunction with the stop bar the valve disc ensures very low leakage rates Using a spiral spring which compensates for the play in com
24. he selected ky value for the butterfly valve BVH 0 90 0 DN 65 with 80 opening is gt ky 156 see Flow rate Flow rate curves for BVH BVHM BVHS on page Example The ranges between the opening angles which are listed in Outlet pressure for high fire pg p 30 mbar the ky values table in 10 steps can be considered as linear Outlet pressure absolute 1 013 30 1 043 bar After linear interpolation of the ky values between 70 and High fire flow rate at standard conditions Q 430 m3 h 80 the selected opening angle of the butterfly valve BVH for Density p for air 1 29 kg m high fire is ky 145 3 approx 76 Air temperature 35 C 95 F Then check the flow velocity max 30 m s Control characteristic a 0 3 BVGF BVA BVAF BVH BVHS BVHM Edition 09 12 25 Selecting the low fire opening angle In a control range of 1 10 this results in low fire flow rate at standard conditions of Qp 43 m3 h 10 4 3 m3 h and an outlet pressure of 30 mbar 102 0 3 mbar The inlet pressure p is the same for low fire and high fire rates Pu Pa ur 30 mbar 13 mbar 43 mbar inlet pressure Pu absolute 1 013 bar 0 043 bar 1 056 bar Outlet pressure for low fire 0 3 mbar outlet pressure pq ir absolute 1 013 bar 0 0003 bar 1 0133 bar Apir for low fire
25. is be replaced by 12 4 3 Kis be replaced by 13 4 4 Kis be replaced by 5 14 4 5 DKR is to be replaced by BVH 15 thet beni 16 5 1 Flow rate curves for BVG BVGF BVA BVAF 16 5 1 1 With full bore nominal 16 5 1 2 With 1x reduced bore 7 5 1 3 With 2 x reduced 18 5 1 4 ky Values E E E 19 5 2 Flow rate curves for BVH BVHM BVHS 20 5 91 KValUeS 21 22 6d Type Code peior 22 6 2 Determining the nominal 2 23 6 2 1 Calculating the nominal 512 23 6 2 2 BVGF BVA 24 6 2 3 BVH BVHS 25 7 Project planning information 27 7 1 Installation 27 7 2 Flow velocities in 28 7 3 Actuator 5 29 73416201640 asd Leti Ere 29 7 3 2 seo cuu eap E EE RUE e IR woke ae 30 GACCESSONES poda ei dep dde obe p iioi oe d 31 8 1For BVG BVA ee 3 8 2 For BVG BVGF BVA BVAF BVH and BVHS 32 8 3 For BVH BVHM and BVHS 32 8 4 eee 32 9 Technical cu
26. order to obtain the pressure loss 13 mbar that has been cal culated taking into account the selected nominal size DN 100 DN 2 BVA 100 80 see PI Flow rate Flow rate curves for BVGF BVA BVAF on 17 With 1 x reduced bore BVGF BVA BVAF BVH BVHS BVHM Edition 09 12 24 km 0 0 0 O0 0 O0 0 O 0 0 0 0 0 0 0 6 6 6 o 9 6 o o o o o o o o o o o co ees schroder 6 2 3 BVH BVHS BVHM ax We want to find a butterfly valve BVH for staged control of a Apu Parr gas burner In order to regulate accurately between loads the 1 opening angle for high fire and low fire rates is calculated i 0 3 x 30 mbar using App 13 mbar 0 013 bar Selecting the high fire opening angle 1 0 3 Firstly is determined using the control characteristic Q see page 40 Glossary and the outlet pressure pq ur ky Aen Pd absolute pressure py eye Se A control characteristic of a 0 3 provides good control prop Qn erties Pn Pa HF absolute Tabsolute 35 273 308 BVG BVGF BVA BVAF 430 1 293 308 V 514 V 0 013 1 043 ky 144 Select the next largest ky value in the ky values table for the BVH BVHS design allowing for the maximum opening angle An opening angle greater than 60 should be selected in order to achieve a wider control range For example t
27. s means that of the overall pressure loss Ap there is 30 drop on the fully open butterfly valve 11 2 Interpolation linear Mathematical production of interim values at equal distance to the adjacent value 11 3 Hot air compensation The volume of air increases with the addition of hot air The oxygen content contained in the air reduces with every m3 In order to maintain a constant oxygen content additional air has to be added to the combustion gas 11 4 Symbols in acc with DIN EN 334 14382 and DVGWG 49 Comparison of the new and old symbols Name of the variable Old New Inlet pressure De Outlet pressure Pa Pd A BVGF BVA BVAF BVH BVHM Edition 09 12 40 Feedback Finally we are offering you the opportunity to assess this Technical Information and to give us your opinion so that we can improve our documents further and suit them to your needs Clarity Found information quickly Searched for a long time Didn t find information What is missing No answer Use To get to know the product To choose a product Planning 1 To look for information Remarks www adobe com Contact Comprehension Coherent Too complicated No answer Navigation can find my way around I got lost No answer Adobe Reader 7 or higher required BVGF BVA BVAF BVH BVHS BVHM Edition 09 12 Too lit
28. s to be replaced by hl A Type Si Valve Butterfly valve for solenoid actuator MB 7 40 DN 40 DN 40 50 DN 50 DN 50 65 DN 65 DN 65 0480 100 100 DN 100 100 T product For fitting between two DIN flanges For fitting between two ANSI flanges For fitting between two flanges to EN 1092 For fitting between two ANSI flanges Pu max 130 mbar 1 89 psig Py max 150 mbar 2 18 psig Temperature range 0 550 C 0 1020 F Temperature range 0 450 C 0 840 F With stop With stop Example Nominal size DN 40 only with disc clearance standard O available Example BVGF BVA BVAF BVH BVHS BVHM Edition 09 12 13 SC roder 4 4 Kis to be replaced by BVHS Type Type K Valve Butterfly valve Safety closing function 40 DN 40 DN 40 50 DN 50 DN 50 0465 65 80 DN 80 DN 80 100 DN 100 DN 100 100 T product For fitting between two DIN flanges For fitting between two ANSI flanges For fitting between two flanges to EN 1092 For fitting between two ANSI flanges Py max 130 mbar 1 89 psi py max 150 mbar 2 18 psi Temperature range 0 550 C 0 1020 F Temperature range 0 450 C 0 840 F With stop With stop Example Nominal size DN 40 only with disc clearance Safety closing function only in conjunction with actuator IC 40S
29. standard available Example BVGF BVA BVAF BVH BVHS BVHM Edition 09 12 14 krom E RA AUR RO RE N o schroder 4 5 DKR is to be replaced by BVH Type Type Butterfly valve Butterfly valve 25 DN 25 92 DN 32 40 DN 40 DN 40 40 50 DN 50 DN 50 50 ay 0465 065 al 80 DN 80 DN 80 80 100 DN 100 DN 100 100 125 DN 125 150 DN 150 For fitting between two DIN flanges For fitting between two flanges to EN 1092 For fitting between two ANSI flanges Py max 300 mbar 4 35 psi Py max 150 mbar 2 18 psi With manual adjustment With free shaft end 100 Temperature range 100 C 210 F Temperature range 450 C 840 F Temperature range 0 450 0 840 F 650 Temperature range 650 C 12007 With disc clearance With stop 6570324500 Example standard available BVGF BVA BVAF BVH BVHS BVHM Edition 09 12 5 Flow rate 5 1 Flow rate curves for BVG BVGF BVA BVAF 5 1 1 With full bore nominal diameter hl A 5
30. t will already be fitted otherwise it will be enclosed as an ad ditional item Fastening set Order No IC BVA BVG BVH E fitted 74921084 IC BVA BVG BVH B enclosed 74921082 8 3 For BVH BVHM and BVHS Heat deflectors Butterfly valves BVH BVHM or BVHS for hot air can be used in temperatures of up to 250 C 480 F with additional heat deflectors they can be used in temperatures of up to 450 C 840 F Order number 74921670 8 4 For BVHM Fastening set This is required to attach the solenoid actuator MB 7 to the butterfly valve BVHM The fastening set is delivered enclosed as an additional item Order number 74922222 BVGF BVA BVAF BVH BVHS BVHM Edition 09 12 32 9 Technical data BVG BVGF BVA BVAF Gas type BVG BVGF natural gas town gas LPG and other non aggressive fuel gases BVGF biologically produced methane max 0 1 by vol H2S BVA BVAF air The gas must be dry in all conditions and must not contain condensate Housing material valve disc aluminium drive shaft stainless steel seals HNBR DN 40 to 150 reduction by 2 nominal sizes is possible Inlet pressure py max 500 mbar 7 25 psi Medium temperature 20 to 60 C 4 to 140 F Ambient temperature 20 to 60 C 4 to 140 F BVH BVHM BVH Gas type air and flue gas D
31. terfly valve BVG BVGF can be used to correct the lambda value The butterfly valve with manual adjustment is used to adjust the high fire rate 1 1 2 BVA BVAF adjusting the burner capacity In pneumatic systems the butterfly valve with mounted actua tor IC 20 E determines the air volume for the required burner capacity The butterfly valve with manual adjustment is used to adjust the high fire rate BVGF BVA BVAF BVH BVHS BVHM Edition 09 12 xu m VAG VAS 1 IC 40S BVHS BVA 1 1 3 BVH hot air compensation The butterfly valve BVH is used on burners that are operated with preheated combustion air at temperatures of up to 450 C 840 F Hot air compensation see page Glossary 1 1 4 BVHS safety closing function in the event of a mains voltage failure The safety closing function ensures that in the event of a mains voltage failure air cannot stream into the furnace without be ing under control The BVHS is installed in the air circuit together with the actua tor IC 40S The butterfly valve with manual adjustment is used to adjust the high fire rate BVGF BVA BVAF BVH BVHS BVHM Edition 09 12 xiu m MB 7 BVHM BVA 1 1 5 BVHM large number of operating cycles for
32. tle Sufficient Too wide No answer Scope in te r active My scope of functions Technical department Sales No answer Kromschr der 03250551
33. top bar which may prevent the valve from closing properly This is why we recommend selecting the direction of flow from bottom to top If pipe fittings reducing fittings are installed in the pipework the additional pressure loss must be taken into account If the valve is used with hot air the pipeline should be ad equately insulated so as to reduce the ambient temperature the flanges and the butterfly valves BVH BVHS or BVHM must be kept free of insulating material Install the butterfly valve in such a way that rising hot air does not circulate around the actuator krom ae schroder Butterfly valves BVG BVGF BVA BVAF and BVH and actuators IC 20 and IC 40 are supplied separately or assembled Easy assembly with the actuator using 2 screws can be carried out either before or after installation of the butterfly valve in the pipework The butterfly valve BVHM and the solenoid actuator MB 7 are delivered separately Easy assembly with the solenoid actuator using the installation set can be carried out either before or after installation of the butterfly valve in the pipework In conjunction with butterfly valves BVH BVHS or BVHM for hot air the actuators can be used in temperatures of up to 250 C 480 F with additional heat deflectors they can be used in temperatures of up to 450 C 840 F BVGF BVA BVAF BVH BVHS BVHM Edition 09 12 27
34. tuator IC 40S BVHM Butterfly valve for hot air and flue gas up to 450 C only in conjunction with solenoid actuator 7 DN 40 150 Nominal diameter DN DN 25 125 Reduced to nominal diameter DN Z For fitting between two flanges to EN 1092 W For fitting between two ANSI flanges Max inlet pressure py max 01 150 mbar 2 18 psig 05 500 mbar 7 25 psig Ke With stop bar BVGF BVA BVAF BVH BVHS BVHM Edition 09 12 22 k ron 6 2 Determining the nominal size 6 2 1 Calculating the nominal size metric imperial Product a v mbar m3 h m s C BVG BVGF BVA BVAF BVA BVAF 65 16 2 10 1 0 35 75 67 BVH BVHS BVHM BVA BVAF 80 7 8 11 3 0 21 67 49 BVA BVAF 80 65 21 6 12 5 0 42 79 49 BVA BVAF 100 80 11 4 13 5 0 28 66 29 A 1 29 k T kg m3 BVA BVAF 100 65 37 3 14 3 0 55 87 29 Flow rate Q standard 1000 m3 h BVA BVAF 125 80 17 1 14 4 0 36 69 19 Outlet pressure pq 30 0 mbar BVA BVAF 150 100 6 1 15 2 0 17 52 13 ADmin 5 00 mbar APmax 40 0 mbar Medium temperature 0 Flow rate Q operation 935 m3 h Ap Pressure drop when valve fully opened 90 Leakage rate when valve closed Ap py Apgoel Valve authority recommended value 0 3 lt Opening angle at entered APmox Flow velocity
35. u sie cepi 33 9 1 Dimensions BVG BVA IC 20 IC 40 34 9 1 1 With 1 x reduced 34 9 1 2 With 2 x reduced 34 9 2 Dimensions BVGF BVAF IC 20 IC 40 35 9 2 1 With full bore nominal diameter 35 9 2 2 With 1 x reduced 35 9 2 3 With 2 x reduced bore 35 9 3 Dimensions BVH BVHS IC 20 IC 40 36 9 4 Dimensions MB 7 37 9 5 Conversion factors 38 10 Maintenance cycles 39 sng iene bits ae ded I RURSUS 40 11 1 Control characteristic valve authority 40 11 2 Interpolation 40 Hot air compensation 40 11 4 Symbols in acc with DIN EN 334 14382 and BLEEE e 40 Roela nie dic ody T E T E diene 4 CONMIGO od aera dmi anaes greece Hae PP T RIPE 41 BVGF BVA BVAF BVH BVHS BVHM Edition 09 12 v 3 To be continued 2 0 0 0 O0 0 O O0 O0 0 0 0 6 0o 9 6 o o o o o o o o o o o o s 1 Application The butterfly valves are designed to adjust volumes of gas cold and hot air and flue gas on various appliances and flue gas lines They are designed for control ratios up to 1 10 and with t
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