DamperActuatorSizingChart One of themost frequent problems that techniciansfaceis howto detemine thecorrect torque ctuatr fortheir damper TheetallFrstheadtmrmwthat tdm open and close against. From that point use the charts below to determine the amount of torque needed. Torque Vector Table TorqueFactor(Lb.In/Ft2) AirVelocity(FtMin) <1200 <2500 <3000 Damper Blade Style Opposed Blade No Seals 3 4.5 6 Opposed Blade with Seals 6 7.5 10 Parallel BladeNoSeals 4 6 8 Parallel BladewithSeals 8.5 10.5 14 Opposed Blades without Seals Torque requlred (inJbs.) sqft. <1000fpm 1000-2500 fpm 2500-3000 fpm 5 15 23 30 10 30 45 15 45 68 90 20 60 90 120 25 113 150 30 90 135 180 35 158 210 40 120 180 240 Opposed Blades with Seals Torque required (inJbs) sq.ft. <1000fpm 1000-2500fpm 2500-3000fpm 5 25 38 50 10 50 5 100 15 75 113 150 20 100 150 200 25 125 188 250 30 150 225 300 35 175 263 350 40 200 00 400 1/3 Parallel Blades without Seals Torque required (in.lbs.) sq.ft. <1000 fpm 1000-2500 fpm 2500-3000 fpm 5 20 30 40 10 40 60 80 15 60 90 120 20 80 120 160 25 100 150 200 120 180 240 35 140 210 280 40 160 240 320 Parallel Blades with Seals Torque required (in.lbs.) sq.ft. <1000 fpm 1000-2500 fpm 2500-3000 fpm 5 35 53 10 70 105 140 15 105 158 210 20 140 210 280 25 175 263 350 30 210 315 420 35 245 368 490 40 280 420 560 If psble reto thdmermafacturestorqucifcation tbsue. Determine blade configuration Airflow through opposed blade damper at one-third closed Opposed Blade Parallel Blade 2/3 EXAMPLE: In this example the damperphysicalproperties are 36inches by 36 inches with opposed blade domperand seals ond hasamaximum airvelocityof 2oooftmin.henext stepistofind therequired trqueTodothatmultiply thetorquefactor by the square footage of the damper. Torque Requirements Opposed Blade Dampers with Parallel Blade Dampers with No Seals Low Leakage Seals No Seals Low Leakage Seals Maximum Pressures of 2 in. wg or Maximum Velocities of 1500 fpm 3 in-lb/ft2 5 in-lb/ft2 4 in-lb/ft2 7 in-lb/ft2 Maximum Pressures of 3 in.wg or Maximum Velocities of 2500 fpm 4.5 in-lb/ft2 7.5 in-lb/ft2 6 in-b/ft2 10.5 in-lb/ft2 MaximumPressures of 4 in.wg or MaximumVelocities of 3000fpm 6 in-lb/ft2 10 in-lb/ft2 8in-lb/ft2 14 in-lb/ft2 Torque Formula: 36（In)*36（in) 1 296 (In2) Torque Factor Lbin Damper Area(Ft2)= 9Ft2 Ft? 144 n2 Eti 10.5 Fta Required Torque（Lbln)=DamperArea（Ft2)Torque FactorTorque Factor Lbln 910.5=94.5Lbln Ft? 94.5 Lb.In * 0.11=10 Nm N05 Series Honeywell Torque: Running Time: 90 sec.independent of load 44 Ib-in (5Nm) Control Input: Floating and Two-position Overload Protection: Modulating and Floating Rotation: Electronic Stall Protection throughout stroke （oqsnpe）.s6 BELMO Manual Override: Shaft Diameter: 3/8*...5/8(9...16mm) Maleinteietad Declutch push button LM24A-SR NEHASPS Direction of Rotation: Dimensions: Selectable by switch 5-9/32°x 2-7/16× 2-19/32"(134× 62 × 66mm) 10Nm Electrical Connection: Built-in Auxiliary Switch: 2 x SPDT Terminal strip withremovableaccess cover 24VAC/DC EnvironmentProtection:NEMA2/IP54 Temp Rating: -5..140°F (-20...60°C) Mode SNOSA5011 Voltage 2Vaidtc 2% .45% Control Fligjwo.F Aux Switch EP MMG10541201 24Vacidc 20% .45% Mouingflotag Flating/Two.Positn Yes M505A2001 2Vcit 2%.4% MNT50SA2209 24Vacidc 20% -45% Ye tvu 3/3
BS EN标准下 风阀执行器选型表.pdf
