Model 1M300 - The Meter and Valve Company

Accuracy Curve% of Meter Rating0 10 20 30 40 50 60 70 80 90 100102ACCURACY - %DIFFERENTIAL - IN. WC.1011009998971.00.50.00Differential CurveModel 1M300Body Type Series BStart Rate 1.9 cfhStop Rate 1.1 cfhRangeability ±1% 30:1Rangeability ±2% 59:1Above data has been determined from tests performedwith air at atmospheric pressure and ambient temperature,using positive displacement bell or piston proversdimensionally traceable to the United States NationalInstitute of Standards and Technology (NIST) andtraceable to NMi - Netherlands Measurements Institutefor volumetric flow rate.10 20 30 40 50 60 70 80 90 100% of Meter RatingCenterline to1M300 Overall Length Overall Height Width (flange/flange) Accessory End (CL-AU) Request DetailedSeries B3 inches mm inches mm inches mm inches mm Drawing NumberCTR 15-31/32 406 6-31/32 177 6-3/4 171 10-5/16 262 D054722-000CD 19-25/32 503 6-31/32 177 6-3/4 171 14-1/8 359 D054439-000CPW 18-1/16 459 6-31/32 177 6-3/4 171 12-13/32 316 D056121-000Accessory UnitHeightCL-AULengthTo orderSpecify: Meter Series, Size and Type (i.e. ROOTS ® Meter Series B3 1M300 CD).For CD, specify Inlet (Top or Side) and ID Rotation (CW-B or CCW-A).For Pulser, specify Single or Dual Connectors and Connector Type (MS Circular, Conduit or Cable Gland).For more specific ordering information on the electronic products, request: TS:SSP or TS:MC.Contact the factory for other available information options, or special requests.Roots Meters & InstrumentsDresser, Inc.16240 Port Northwest DriveHouston, Texas 77041-2645 USAInside US Ph: 800.521.1114 Fax: 800.335.5224Outside US Ph: 832.590.2303 Fax: 832.590.2494©2008 Dresser, Inc.Roots and Dresser are registered trademarks of Dresser, Inc.www.dresser.comDS:B3-1M3004.09