Butterfly valves for open-close applications and control mode

I II III Butterfly valves for open-close applications and control mode Table of contents Introduction Butterfly valves for open-close applications Project planning, design and dimensioning 4 Butterfly valves for control mode Project planning, design and dimensioning 7 Definitions www.belimo.com P5-Butterfly valves en v4. 0.05 Subject to changes /

Introduction Introduction Open-close applications Typical applications Energy savings and the reduction of the leakage losses will become ever more important in the future. The generation outputs of boilers or chilling systems are divided up into different performance level categories. Depending on the decline in pressure, the generators will then be switched either on or off. The generators will be blocked in order to minimise performance loss. The leakage rate (shut-off seat) shall be kept as low as possible. The pressure loss shall also be low with the valves opened completely. These are prerequisites for minimising the electrical performance of the pumps and thus for lowering operating costs. I II III Boiler sequence system Open heat exchanger Control mode Typical applications The BELIO butterfly valves exhibit a nearly equal-percentage characteristic curve in accordance with VDI 76 for opening angles between 0 and 54 and can also be installed in injection circuits or heat exchangers with low differential pressures as an inexpensive final controlling element. Heat exchanger α 90 p < kpa x max. 5 m 54 0 V(B) V(R) V Injection circuit V(R): Control path V(B): Bypass path Chiller Valves and actuators product range 4 V and 0 V rotary actuators with different functionalities, auxiliary switches and with emergency control function in a variety of torque classes ranging from 0 to 500 Nm are available for selection for the motorisation of the BELIO Wafer type and Lug type butterfly valves ( 5 to 700) for indoor and outdoor applications: SR..A-5, SRF..A-5, SR..P, GR..A-5, GR..A-7, DR..-7 and SY... The butterfly valves can be operated manually with a lever or a worm gear. / P5-Butterfly valves en v4. 0.05 Subject to changes www.belimo.com

Introduction Introduction (continued) Valves and actuators product range Fig. Wafer type butterfly valve with hand lever Fig. Lug type butterfly valve with worm gear Fig. Lug type butterfly valve with SR..A-5 actuator Fig. Wafer type butterfly valve with SY.. actuator Body of the butterfly valves Fig. Wafer type (with clips) Fig. Lug type (with threads) Flange in accordance with ISO 5 Stainless stem, controlled in RPTFE bush bearing Spheroidal cast iron housing (GGG 40) 4 EPD seat with injected O-ring, seals against the exterior 5 Pin (to secure shaft, for a backlash-free rotation of the valve disc) 6 Stainless valve disc 7 EPD seat primary seal, leak-proof pursuant to EN 66-, avoid leakage over the shaft (valve disc pol seat) 8 Stainless spindle safety device 9 Stainless spindle short EPD O-ring tertiary seal against exterior contamination 4 5 6 7 8 9 -part stem Wafer and lug type: 5 bis 40 Detail 4 4 5 6 7 -part stem Wafer and lug type: 50 to 700 Installation of the butterfly valves in open systems D6.. butterfly valves must be mounted with counter flange in open systems. Generally speaking D6.. butterfly valves must run through a full cycles at least once per month in order to reduce the breakaway torque (applies to both open and closed systems). www.belimo.com P5-Butterfly valves en v4. 0.05 Subject to changes /

Butterfly valves for open-close applications Project planning Design Pipeline clearances The data, information and limit values listed on the data sheets and mounting instructions D6.. are to be taken into account and/or complied with, respectively. The minimum clearances between the pipelines and the walls and ceilings required for project planning depend not only on the valve dimensions but also on the selected actuator and can be found in the data sheets of the valves and actuators. Design and dimensioning General information Closing pressure for manually operated butterfly valves D6..N(L) + ZD6N-.. D6..N(L) + ZD6N-.. combinations The valves can be used when the following values for open-close applications are complied with: The maximum flow speed of 4 m/s may not be exceeded in the valve. The valve is to be selected in such a way that the nominal pipe width corresponds to = nominal valve width and the pressure drop off is kept as low as possible. aximum permissible closing pressure D65N(L)... D650N(L) 5... 50 0 D6400N(L)... D6700N(L) 400... 700 00 Butterfly valve Lever Worm gear ) ζ Zeta value D65N(L) 5 0, ZD6N-H0 ZD6N-S0 D6N(L) 0,55 ZD6N-H0 ZD6N-S0 D640N(L) 40 0,8 ZD6N-H0 ZD6N-S0 D650N(L) 50, ZD6N-H0 ZD6N-S0 D665N(L) 65 0,88 ZD6N-H0 ZD6N-S0 D680N(L) 80 0,7 ZD6N-H0 ZD6N-S0 D60N(L) 0 0,47 ZD6N-H0 ZD6N-S0 D65N(L) 5 0,58 ZD6N-H50 ZD6N-S50 D650N(L) 50 0, ZD6N-H50 ZD6N-S50 D600N(L) 00 0, ZD6N-S00 D650N(L) 50 0, ZD6N-S50 D600N(L) 00 0,4 ZD6N-S50 D650N(L) 50 0, ZD6N-S50 D6400N(L) 400 0,0 ZD6N-S400 D6450N(L) 450 0,9 ZD6N-S450 D6500N(L) 500 0,7 ZD6N-S500 D6600N(L) 600 0,7 ZD6N-S600 D6700N(L) 700 0, ZD6N-S700 k v max values and approved differential pressure p v 0 are illustrated in the table «Flow rate butterfly valves D6..N / D6..NL» on page 5. ) Worm gears are not suitable for outdoor applications. 4 / P5-Butterfly valves en v4. 0.05 Subject to changes www.belimo.com

Butterfly valves for open-close applications Design and dimensioning Closing pressure butterfly valves D6..N / D6..NL 5... 00 Closing pressure butterfly valves D6..N / D6..NL 50... 700 (continued) Butterfly valve k v max Actuators SR.. GR.. DR.. SY SY SY SY4 D65N(L) 5 45 0 0 D6N(L) 55 0 0 D640N(L) 40 70 0 0 D650N(L) 50 90 0 0 D665N(L) 65 80 0 0 D680N(L) 80 00 0 0 D60N(L) 0 580 0 ) 0 ) D65N(L) 5 80 0 0 D650N(L) 50 600 0 0 D600N(L) 00 900 0 D650N(L) 50 4400 0 D600N(L) 00 700 0 ) GR..A-5 ) ZSY-005 Linkage Butterfly valve k v max Actuators SY6 SY7 SY8 SY9 SY SY D650N(L) 50 900 600 0 4) D6400N(L) 400 400 600 ) 00 5) D6450N(L) 450 8800 600 6) 00 6) D6500N(L) 500 40 600 6) 00 7) D6600N(L) 600 700 600 8) 00 8) D6700N(L) 700 4800 00 9) ) ZSY-40 Linkage 4) ZSY-70 Linkage 5) ZSY-70 Linkage 6) ZSY-70 Linkage 7) ZSY-90 Linkage 8) ZSY-90 Linkage 9) ZSY-90 Linkage Flow rate butterfly valves D6..N / D6..NL Butterfly valve k v max 0,0 Differential pressure p v0 0, Formula p v0 0 = 0 k v max p v0 0 k v max D65N(L) 5 45 0,45,4 4,50 6,6 D6N(L) 55 0,55,74 5,50 7,78 D640N(L) 40 70 0,70, 7,00 9,90, D650N(L) 50 90 0,90,8 9,0,7 5,6 D665N(L) 65 80,80 5,7 8,0 5,5 D680N(L) 80 00,0 9,5 0 4 D60N(L) 0 580 5,8 8, 58 8 D65N(L) 5 80 8, 6 8 D650N(L) 50 600 6 5 60 D600N(L) 00 900 9 9 90 D650N(L) 50 4400 44 9 440 D600N(L) 00 700 7 70 D650N(L) 50 900 9 45 90 D6400N(L) 400 400 4 449 40 D6450N(L) 450 8800 88 595 880 D6500N(L) 500 40 4 76 4 D6600N(L) 600 700 7 79 70 D6700N(L) 700 4800 48 5 480 Flow rate 0 www.belimo.com P5-Butterfly valves en v4. 0.05 Subject to changes 5 /

Butterfly valves for open-close applications Design and dimensioning (continued) Pressure drop p v0 [bar] 5000 4000 000 000 00 800 600 500 400 00 00 0 80 60 50 40 0 0 0.000 0.000 0.000 0.0004 0.0005 0.0006 0.0008 0.00 0.00 kvmax 700 4800 600 700 500 40 450 8800 400 4400 50 900 00 700 50 4400 00 900 50 600 5 80 0 580 0.00 0.004 0.005 0.006 0.008 0.0 ) 0.0 0.0 0.04 0.05 0.06 0.08 0. 400 0 80 560 80 0 70 40 8 56 8 7 4 8. 5.6 Formula p v0 = 0 0 k v max 0 8 6 5 4.5 80 00 65 80 50 90 40 70 55 5 45 ) ).8..7.4. 0.8 0.56 0 [l/s] p v0 0 k v max Legend p v0 Differential pressure with valve completely open 0 Nominal flow rate with p v0 p v0 ) The maximum speed in the butterfly valves is 4 m/s 0.8 0.6 0.5 0.4 0. 0. 0. 0.0 0.0 0.0 0.04 0.05 0.06 0.08 0. 0. 0. 0.4 0.5 0.6 p v0 0.8 4 5 6 8 0.8 0. 0.7 0.4 0. 0.08 0.06 0.0 6 / P5-Butterfly valves en v4. 0.05 Subject to changes www.belimo.com

Butterfly valves for control mode Project planning Design Pipeline clearances The data, information and limit values listed on the data sheets and mounting instructions D6.. are to be taken into account and/or complied with, respectively. The minimum clearances between the pipelines and the walls and ceilings required for project planning depend not only on the valve size but also on the selected actuator. Design and dimensioning General information Butterfly valves can be used in control mode when the following values are complied with: The maximum flow speed of 4 m/s may not be exceeded in the butterfly valve. The butterfly valve is to be designed in such a way that the nominal pipe width corresponds to nominal butterfly valve width. The narrowing of the pipe must be designed in such a way thereby as to ensure optimum flow in order to ensure that the pressure drop is kept as low as possible. The maximum differential pressure for flow through the butterfly valve is 000 kpa ( bar). Technical data for control mode Differential pressure p v0 : <000 kpa with valve cone opening (may not be exceeded) Differential pressure p v @ 54 : The values listed in the Differential Pressure Table must be complied with Valve authority: >0. Rangeability: >0 The S-shaped characteristic curve of the D6..N(L) butterfly valve (BFV) does not correspond to the equal percentage characteristic curve pursuant to VDI 76. It is only in the angle of rotation range between 0 and 54 (60% of the full opening angle) that one can speak of an approximately equal percentage characteristic curve. For an opening angle of 54, the k vs corresponds to approx. 5 percent of the k v max value for a 90 opening angle. S-shaped characteristic curve k v / k v max 0% Flow rate 50% S-shaped characteristic curve e.g. D650N Theoretically equal-percentage characteristic curve Definitions k v max and k vs The flow rate of k v max will ensue when the disc is fully open (90 ). The k vs value refers to the flow rate at 54 opening angle, bar pressure loss and medium temperature between 5 and 40 C. k vs 5% 0% 0 8 6 54 7 Opening angle S-shaped characteristic curve e.g. D600N 90 Scaled characteristic curve range k v / k vs Deviation >% 0% % 0% % Deviation >% 0% 0% 0% 54 The k vs @ 54 listed in the differential pressure table deviates from the usual tolerance (±%) for some nominal widths. The equivalence factor of the equal percentage characteristic curve is ~.5. www.belimo.com P5-Butterfly valves en v4. 0.05 Subject to changes 7 /

Butterfly valves for control mode Design and dimensioning (continued) Because of this fact, there is no configuration option available with the modulating actuators of limiting the angle of rotation range from 0 to 54. The angle of rotation range required can be adjusted accordingly afterwards with the F and P types using the PC-Tool FT-P, Version.. The differential pressure p v @ 54 (marked in grey in the table «Flow rate») may not be exceeded. This will ensure that the maximum permissible medium speed of 4 m/s is maintained. Depending on the nominal width, the closing angle when in new condition lies between and 6. Formula The effective volumetric flow calculated for opening angle 54 is: @ 54 = k vs @ 54 0 @ 54 k vs @ 54 p @ 54 p v @ 54 0 Flow rate Closing pressure 5... 00 Butterfly valve k vs @ 54 @ 54 p v @ 54 Closing angle New condition D65N(L) 5 6 5,8,4 ~6 D6N(L) 9 8,6 0, ~6 D640N(L) 40 5,0 8,0 ~ D650N(L) 50 6,0 5,7 ~ D665N(L) 65 6 7,7 9, ~ D680N(L) 80 5 46,4 9,6 ~ D60N(L) 0 0 84,0 7, ~ D65N(L) 5 87 5, 6, ~ D650N(L) 50 560 97,7,5 ~ D600N(L) 00 5 50,,9 ~7 D650N(L) 50 540 58,, ~7 D600N(L) 00 555 790, 9,6 ~7 D650N(L) 50 85 998,5 6,8 ~7 D6400N(L) 400 4970 4,7 8, ~ D6450N(L) 450 6580 750,7 7, ~ D6500N(L) 500 845 08,4 5,7 ~ D6600N(L) 600 55 0,5 6,0 ~ D6700N(L) 700 4980 459, 8,5 ~ Butterfly valve k v max Actuators SR.. GR.. DR.. SY SY SY SY4 D65N(L) 5 45 0 0 D6N(L) 55 0 0 D640N(L) 40 70 0 0 D650N(L) 50 90 0 0 D665N(L) 65 80 0 0 D680N(L) 80 00 0 0 D60N(L) 0 580 0 ) 0 ) D65N(L) 5 80 0 0 D650N(L) 50 600 0 0 D600N(L) 00 900 0 D650N(L) 50 4400 0 D600N(L) 00 700 0 ) GR..A-5 ) ZSY-005 Linkage 8 / P5-Butterfly valves en v4. 0.05 Subject to changes www.belimo.com

Butterfly valves for control mode Design and dimensioning Closing pressure 50... 700 (continued) Butterfly valve k v max Actuators SY6 SY7 SY8 SY9 SY SY D650N(L) 50 900 600 0 4) D6400N(L) 400 400 600 ) 00 5) D6450N(L) 450 8800 600 6) 00 6) D6500N(L) 500 40 600 6) 00 7) D6600N(L) 600 700 600 8) 00 8) D6700N(L) 700 4800 00 9) ) ZSY-40 Linkage 4) ZSY-70 Linkage 5) ZSY-70 Linkage 6) ZSY-70 Linkage 7) ZSY-90 Linkage 8) ZSY-90 Linkage 9) ZSY-90 Linkage Pressure drop @ 54 opening angle p v @ 54 [bar] 5000 4000 000 0.000 0.000 0.000 0.0004 0.0005 0.0006 0.0008 0.00 0.00 0.00 0.004 0.005 0.006 0.008 0.0 0.0 0.0 0.04 0.05 0.06 0.08 0. ) 0. 0. 400 0 80 000 560 Formula The effective volumetric flow calculated for opening angle 54 is: @ 54 = k vs @ 54 0 @ 54 k vs @ 54 p @ 54 p v @ 54 0 Legend p v @ 54 Differential pressure at 54 valve opening @ 54 Nominal flow rate with p v @ 54 p v @ 54 ) The maximum speed in the butterfly valves is 4 m/s @ 54 00 800 600 500 400 00 00 0 80 60 50 40 0 0 8 6 5 4.5 0.8 0.6 0.5 0.4 0. 0. 0. 0.0 0.0 0.0 0.04 0.05 0.06 0.08 0. k vs 700 4980 600 55 500 845 450 6580 400 4970 50 85 00 555 50 540 00 5 50 560 5 87 0 0 80 5 65 6 50 40 5 9 5 6 0. 0. 0.4 0.5 0.6 p v @ 54 0.8 4 5 6 8 ) 0 ) 0 80 0 70 40 8 56 8 7 4 8. 5.6.8..7.4. 0.8 0.56 0.8 0. 0.7 0.4 0. 0.08 0.06 0.0 @ 54 [l/s] www.belimo.com P5-Butterfly valves en v4. 0.05 Subject to changes 9 /

Definitions k v max arking (catalogue value) of butterfly valves: k v value when valve is completely open (90 ) k v k vs p v 0 Flow rate factor or flow rate coefficient. The k v value corresponds to the volumetric flow of water through a valve (in m /h or l/min) with a differential pressure of 0 kpa ( bar), a water temperature of 5... 40 C and at a defined angle k v value of the valve at 0% degree of opening Closing pressure at which the rotary actuator can still seal the butterfly valve tightly allowing for the appropriate leakage rate Differential pressure when valve is completely open p v @ 54 aximum approved differential pressure. The flow velocity is 4 m/s at a valve opening angle of 54 0 Nominal flow rate at p v 0 @ 54 Nominal flow rate at p v @ 54 ζ value Zeta ζ is the coefficient for the pressure loss through the fully opened valve (90 ) Further documentation Overview «Valve-actuator combinations» Data sheets for valves and actuators ounting instructions for valves and actuators General notes for project planning / P5-Butterfly valves en v4. 0.05 Subject to changes www.belimo.com

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