Flo-Tork Series M Valve Actuators - Weights and Displacements

Actuator Weights (lbs)
Double Acting
Model	Weight (lbs)
MD-1-527	80
MD-1-727	93
MD-1-737	160
MD-1-837	170
MD-1-937	180
MD-1-1037	190
MD-1-1047	330
MD-1-1247	430
MD-1-1447	460
MD-1-1465	860
MD-1-1665	980
MD-1-1680	815
MD-2080	975
MD-2480	1415
Spring Return
Model	Weight (lbs)
MS-1-527	146
MS-1-727	168
MS-1-737	240
MS-1-837	285
MS-1-937	330
MS-1-1037	390
MS-1-1047	540
MS-1-1247	700
MS-1-1447	770
MS-1-1465	1300
MS-1-1665	1665
MS-1-1680	1440
MS-2080	1600
MS-2480	2040

Above weights are base on 80# springs for MS-1-1665 and smaller models. Weights for MS-1680 and larger models are based on the #2 springs.

Actuator Displacement (in³)
one 95° stroke
Double Acting & Spring Return
Model	Displacement (in³)
MD/MS-1-527	137
MD/MS-1-727	266
MD/MS-1-737	361
MD/MS-1-837	475
MD/MS-1-937	503
MD/MS-1-1037	741
MD/MS-1-1047	897
MD/MS-1-1247	1299
MD/MS-1-1447	1765
MD/MS-1-1465	2796
MD/MS-1-1665	3115
MD/MS-1-1680	3620
MD/MS-2080	5740
MD/MS-2480	8330

Actuator Free Air Consumption - One 95° Stroke

The following formula may be used to determine the free air consumption for each actuator.

V = Free Air Consumption Per Minute (scfm)
D = Actuator Displacement (cubic feet)
P = Gauge Pressure (psig)
T = Actuator Operating Time (seconds)

Cubic Feet = (Cubic Inches)/1728

Note: For Tandem unit weights and displacements please refer to the torque output pages here and here.