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Economical Flowmeters Model VM-1000 Series (45mm)

Description Matheson Instruments has incorporated the ultimate in versatility and the optimum in cost efficiency while retaining the quality synonymous with the Matheson trademark in developing the VM-1000 Series Flowmeters. Its simplistic, attractive design provides suitability for a wide variety of applications involving gaseous flows. A variety of easy to read scales are available. The VM-1000 Series are direct reading for air, and are available in either English or metric units. Choose between a black glass or stainless steel float. Integral hose barb and male pipe thread fittings allow the instrument designer unparalleled versatility in plumbing options. The VM-1000 Series Flowmeters are attractively situated in either a front mount or a flush mount panel application. These flowmeters are available as an indicator without a valve, with a standard metering valve or with a back pressure compensated metering valve suitable for vacuum applications. Design Features Low profile, compact design Low pressure drop Panel mounting requires no additional hardware Clear view of tube and float for quick, efficient flow readings Precision plain tapered metering element 3" center distance allows for competitive replacement 1/4" hose with 1/8" male NPT connections Control valve available on inlet or outlet Reference Scale 45mm Specifications Pressure Rating: 50 psig maximum operating pressure Temperature Rating: 150ºF (65ºC) maximum operating temperature Accuracy: ±10% of full scale flow rate Repeatability: ±1% of scale reading Range: 10 to 1 or greater, i.e., 100% to 10% of full scale Control Valve Resolution: Five turns from full closed to full open Materials of Construction Wetted End Blocks, and Connections: Zytel® Nylon, black Seal Materials: Buna-N or Viton® Valve Stem: Brass Metering Tube: Polycarbonate Support Channel: Noryl®, white Float Materials: Black glass or 316 stainless steel

Flow Tube Capacities for VM-1000 Series Flowmeters, 45mm, Direct Reading Float Material Tube No. Air (SLPM)* Tube No. Air (SCFH)* Tube No. Water (CCM) Tube No. Water (GPH) Glass W103 0.5-8 W105 1-17 W107 20-220 W109 0.2-3.4 Stainless Steel W104 1-14 W106 2-30 W108 20-400 W110 0.5-6.5 Glass W303 0.2-3.8 W305 0.5-8 W307 10-110 W309 0.1-1.7 Stainless Steel W304 0.5-5 W306 1-15 W308 20-200 W310 0.2-3.2 Glass W403 0.5-5 W405 1-11 W407 10-140 W409 0.2-2.2 Stainless Steel W404 1-10 W406 2-20 W408 20-280 W410 0.2-4.4 Glass W503 0.2-3 W505 0.5-6 W507 5-80 W509 0.1-1.3 Stainless Steel W504 0.5-5.5 W506 1-12 W508 10-160 W510 0.2-2.6 *All air flow rates are at 70ºF and 14.7 psia Ordering Information Model Series Number of Metering Tubes End Blocks/ Seal Material Valve Types Connections Accessories Connection Orientation Flow Tube (Capactities) — — To build a Rotometer Part Number, use our Rotometer Model Number Builder. Model Number Generator for VM-1000 Series Flowmeters MODEL SERIES VALVE TYPES CONNECTION ORIENTATION W = Model VM-1000 Plastic Flowmeter with 3" Centers M = Short Projection Valve Inlet 1 = Back In and Back Out NUMBER OF METERING TUBES N = Short Projection Valve Outlet FLOW TUBE (CAPACITIES) 1 = Single Tube Unit Y = No Valve/No Plug WXXX = See Capacity Table Above END BLOCKS/SEAL MATERIAL CONNECTIONS H = Nylon with Buna-N Seals B = 1/4" Hose J = Nylon with Viton® Seals C = 1/8" Male NPT ACCESSORIES 0 = None 2 = Brackets only   9 = Clean for Oxygen Service

Model VM-1000 Series (45mm) Flowmeter Dimensions