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Proportioners and Mixers Models 7300 Series and Model 7400 Series

Description Matheson's Model 7300 and 7400 Series Flowmeters are 150mm multi-tube flowmeter manifolds used for proportioning or mixing multiple gas streams. They are available in three basic configurations. Two gases in; One stream out (proportioner) Three gases in; One stream out (mixer) Four gases in; One stream out (mixer) Tubes are available in several 150mm reference scale flow ranges. Be sure to request calibration data for the gases you will be metering. All tubes are supplied with a single glass float. Standard with the 7300 and 7400 series is the uniquely designed TUBE CUBE. Also, FM-1050 150mm flow tubes are used. Tubes are backpressure compensated by mounting the control valve (utility or high accuracy) on the outlet side of the tube. A highly sensitive pressure regulator is recommended for each of the inlet gas streams to avoid fluctuations in gas flow which could cause inaccuracies in mixing concentration. Specifications Maximum pressure: 200 psig Temperature ranges: 20º to 250ºF (-30º to 120ºC) Overall dimensions: 10"H x 4-1/4"W x 1-1/4"D Base 7-1/4 side (25 x 11 x 3cm) Shipping weight: 6-3/4 lbs. (3.1 kg) Flow Tube Capacities for 7300 and 7400 Series Proportioners and Mixers, 150mm Reference Scale Tube No. Float Material Air (SCCM) Utility Valve Size HA Valve Size E910* Glass 0.13-104 7 1 E101 Glass 6-60 7 1 E201 Glass 10-100 7 1 E301 Glass 38-380 7 3 E401 Glass 88-880 7 3 (SLPM) E501 Glass 0.23-2.3 8 4 E601 Glass 0.4-4 8 5 E701 Glass 0.88-8.8 9 6 E801 Glass 2.4-24 9 6 All flow rates are at 70ºF and 14.7 psia *0-100 calibrated correlated reference tube scale only

Page 18 Ordering Information Model Series Number of Metering Tubes End Blocks/ Seal Material Valve Types Connections Accessories Connection Orientation Flow Tube (Capactities) Flow Tube (capacities) — — / To build a Rotometer Part Number, use our Rotometer Model Number Builder. Model Number Generator for 7300 and 7400 Series Proportioners & Mixers MODEL SERIES ACCESSORIES F = Model FM-1050 Glass Tube MultiTube Mixers with 150mm tube A = Aluminum with Viton® Seals 0 = None G = Model FM-1050 Glass Tube Proportioners with 150mm tube D = 316 Stainless Steel with Buna-N Seals 5 = Base Plate Assembly NUMBER OF METERING TUBES* E = 316 Stainless Steel with EPR Seals 9 = Clean for Oxygen Service 2 = Two Tube Unit N = 316 Stainless Steel with Kalrez® Seals Z = ±1% Accuracy (Full Scale) 3 = Three Tube Unit VALVE TYPES CONNECTION ORIENTATION 4 = Four Tube Unit B = Utility Valve on Outlet 1 = Back In/Back Out *Two Tube Only for Proportioners D = High Accuracy Valve on Outlet FLOW TUBE (CAPACITIES) END BLOCKS/SEAL MATERIAL K = Hole Only EXXX = See Capacity Table For 7300 and 7400 Series Flowmeters 1 = Aluminum with Buna-N Seals CONNECTIONS 4 = 316 Stainless Steel with Viton® Seals 1 = 1/8" NPT Female 6 = 316 Stainless Steel with Teflon® Seals 2 = 1/4" NPT Female 3 = 1/8" Tube 4 = 1/4" Tube 5 = 1/8" Hose 6 = 1/4" Hose (3/16"-3/8" Hose Tapered)