Thermco Gas Mixer Model 8610 NEW, US $2,200.00 – Picture 0

Thermco Gas Mixer Model 8610 NEW, US $2,200.00 – Picture 1

Thermco Gas Mixer Model 8610 NEW, US $2,200.00 – Picture 2

Thermco Gas Mixer Model 8610 NEW, US $2,200.00 – Picture 3

Thermco Gas Mixer Model 8610 New

US $2,200.00

Ames, Iowa, United States
Jan 30th

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Brand new model 8610 thermco 3 gas mixing system The Thermco 3 gas mixer is designed to mix three nonflammable and non-corrosive gases. A constant mixture ratio is maintained between the three gases from shutoff to full flow conditions. The 3 gas mixing system is normally used with a process where the supply gases are drawn from bulk sources and the mixture is produced on site to supply a process by a pipeline. The system is designed for applications that require a very reliable production of mixed gas on a continuous basis such as shield gases for welding. The 3 gas mixing system is capable of replacing 3 gas mixtures, which are prepared in cylinders, which are costly and sometimes difficult to obtain. The 3-gas mixer is able to utilize inexpensive and commonly available bulk sources of gases, such as liquid cylinders. Three capacities are available; 0-750 SCFH, 0 - 2,000 SCFH, and 0 - 5,000 SCFH. All 3-gas mixers are designed to be mounted indoors. Features Infinite flowrate turndown Electrical design incorporates common pressure switches, solenoid values, and regulators for easy maintenance Option of pressure alarm system Examples of Possible Mixtures Gas Mixtures Applications 88% Ar, 9% CO2, 3% O2 GMA welding of carbon steel 90% He, 7.5% Ar, 2.5% CO2 Welding of stainless steel Principles of Operation The gases to be mixed are supplied from bulk storage system to the gas mixer. Normally the required pressure will be between 100 and 125 PSIG. Within the gas mixer these gas streams are regulated to the same pressure. Downstream of the gas regulators, the major gas flows through a fixed orifice and the two minor gas flow through fine metering valves. After passing through these devices, the three gas streams are combined and pass into a surge tank. Once the pressure in the surge tank reaches the upper set point on the pressure switch, the gas supplies are automatically shutoff with a solenoid valve. As mixed gas is required, the pressure in the surge tank falls until it reaches the lower set point of the pressure switch. At this point the gas supplies are turned on and the cycle repeats. The principle of the system is that under changing mixed gas flow rate only the cycling frequency changes; the pressure drops across the flow devices remain the same producing the consistent mixture. Specifications Model Flowrate Gases 8610 0-750 SCFH Any 3 nonflammable, non-corrosive gases (no oxygen) Gas Mixing Accuracy: ± 5% of the minor component for minor components larger than 7.0%; ± 0.35% of the minor component absolute for components from 1.0 to 7.0%. For components less than 1.0% consult the factory. Example: for a 3% O2, 9% CO2 in AR mixture, the accuracy of the O2 is ± 0.35%; the O2 will be within the limits of 2.65% to 3.35%. The accuracy of the CO2 will be 9% x 0.05 = ± 0.45%; the CO2 will be within the limits of 8.55% to 9.45%. Accuracies assume that the gases entering the gas mixer are at equal temperatures and the supply gases and gas mixer ambient are in the range of 50? -90? F (10? -32? C). Accuracy outside these temperature limits will vary; consult the factory for details. Temperature Range - Ambient and Process Gas: 32? - 100?F (0? - 38? C) Normal Supply Gas Inlet Pressure Range: 100-125 PSIG (6.9 - 8.6 BARG) All Models Normal Mixed Gas Outlet Pressure Range: 10-50 PSIG (0.7 - 3.4 BARG) All Models Gas Connections and Piping: 1/2 " NPT female all ports for Models 8610, 8615, 1" NPT female all ports for Models 8110, 8115, 8210, 8215. Surge Tank: 5 gallon, Models 8610, 8615; 30 gallon, Models 8110, 8115; 60 gallon, Models 8210, 8215. All surge tanks are ASME coded and CRN registered with a pressure relief valve. Surge Tank Pressure Switch: The gas mixer utilizes a solid-state pressure switch to control the surge tank pressure. A digital readout of the pressure is built into the switch. Both the sensing element and electrical switch are solid-state. An LED indicator shows when the surge tank is filling. Use of this pressure switch virtually eliminates the most common cause of gas mixer failure. Power Requirements: 115 VAC, 50/60 Hz, 0.5 amp. Acceptable voltage range 102-120 VAC. Available on Request, 220 VAC, 50/60 Hz, 0.25 amp. Acceptable voltage range 204-240 VAC.

Condition:	New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller's listing for full details. ...	Brand	Thermco
Model	8610
Country/Region of Manufacture	United States