GAS PRESSURE & FLOW CONTROL - The Harris Products Group

1 EQUIPMENT. GAS PRESSURE & FLOW CONTROL . E Q U I P M E N T C ATA L O G. AT A GLANCE. SPECIALTY GAS REGULATORS. HIGH PURITY SWITCHOVERS. SPECIALTY GAS ACCESSORIES. MEDICAL EQUIPMENT. THE Harris Products . Group , A LINCOLN. ELECTRIC COMPANY. IS ONE OF THE LARGEST. INDEPENDENT. MANUFACTURERS. Orders: THE Harris Products Group . 2 OF PRESSURE AND. FLOW CONTROL . EQUIPMENT IN THE. WORLD. Harris Products ARE SOLD AND USED IN OVER 85 COUNTRIES. Harris SPECIALTY GAS EQUIPMENT. DIVISION WAS FOUNDED TO PROVIDE COMPLETE SOLUTIONS TO CUSTOMER'S SPECIAL GAS HANDLING. REQUIREMENTS. THE BREADTH OF THE PRODUCT LINE IS USED IN ANALYTICAL LABS, CHEMICAL. PROCESSING, RESEARCH AND DEVELOPMENT, AS WELL AS BIOTECH AND PHARMACEUTICALS. IN ADDITION. TO PRESSURE CONTROL EQUIPMENT, Harris OFFERS COMPLETE GAS MANAGEMENT Products FOR FLOW. CONTROL , GAS PURIFICATION, CYLINDER STORAGE AND AUDIO/VISUAL PRESSURE INDICATION.

2 THE Harris Products Group . Orders: 3. CONTENTS. THE Harris Products Group 2 SPECIAL APPLICATIONS TRAPS 92 REGULATORS Moisture Traps 94 Model HP 721AL 50 Oxygen Traps 96 Harris SPECIALTY GAS Model HP 724C 52 Hydrocarbon Traps 97 REGULATOR SELECTION Model HP 744 54 PROGRAM 6 Model GP 3520 56 Gas Purifiers 98 Model HP 3530 58 Micron Filters 99 HIGH PURITY PRESSURE . Model HP 750 60 Gauges 100. REGULATOR SELECTION 8. Model HP 752 62 MEDICAL EQUIPMENT 101 HIGH PURITY STAINLESS STEEL. Model 301/1501 102 BARSTOCK REGULATORS REGULATOR MOUNTING STATION SG 910SS 64 Model 301P/301 103 Model HP 741 10 SG 910 BR 66 Model 25P/25 104 Model HP 742 12 SG 905 BR 68 Model FME 105 Model HP 743 14. Model 355-2 106 HIGH PURITY BRASS BARSTOCK BACK UP PANEL Cylinders 107 REGULATORS SG 770 70 Medical Accessories 108. Model HP 721 16 FLOWMETERS MATERIALS COMPATIBILITY 109 Model HP 722 18 Flowmeter Selection Guide 72 MOISTURE CONVERSION 111 Model HP 723 20.

3 Model SG 1050 74 WARRANTY 113. HIGH PURITY CHROME PLATED Model SG 1000 75 BRASS REGULATORS Model SG 1100, 1127 76 Model HP 701 22 Model HP 702 24 PURGES ASSEMBLIES 78. Model HP 703 26. ACCESSORIES GENERAL PURPOSE Diaphragm Valves, Needle Valves, REGULATORS and Relief Valves 82 Model GP 401 28 Model GP 402 30 Regulator Alarm System - Chrome Model GP 403 32 and Stainless steel 84 SPECIAL APPLICATION Outlet Fittings, Flash Arrestors REGULATORS and Check Valves 85 Model HP 704 34 Model GP 404 36 Cylinder Brackets 86 Model HP 405 38 Liquid Cylinder Performance Data 40 Bottle Holder 89 Model HP 705 42 Model HP 8700 44 PIGTAILS 90 Model HP 8700SS 46 Model HP 701EN 48. Orders: THE Harris Products Group . 4 THE Harris Products Group . Orders: 5. Harris SPECIALTY GAS REGULATOR. SELECTION PROGRAM. The Harris Specialty Gas Regulator Selector Program is available exclusively on the Harris Products Group website This convenient program allows the user to quickly and easily specify and choose regulators for high purity, toxic or corrosive gas service.

4 Regulators with multiple features can be specified by simply choosing from the various options available. The program allows for multiple regulators to be specified where it then compiles all selections in a list which can be emailed to Harris ' customer service department for a quote. The program features graphical user controls and inputs. It also includes links to informative articles on common terminology and regulator functions. Orders: THE Harris Products Group . 6 Harris SPECIALTY GAS REGULATOR. SELECTION PROGRAM. Materials Compatibility Follow these simple steps: Go to: /Specialty-Gas- Step 1 Step 4. Choose Gas Service Select inlet and outlet fittings Step 2. Select from the Step 5. appropriate models Select additional given options or accessories Step 3. Select outlet Step 6. PRESSURE needed Add to quotation page which can be emailed directly to the Harris Customer Service Group .

5 THE Harris Products Group . Orders: 7. High Purity PRESSURE Regulators Selection Gases can be supplied in compressed gas high- PRESSURE cylinders, liquid low- PRESSURE cylinders or from low- PRESSURE pipeline supply. The PRESSURE from Delivery PRESSURE Range the supply source must be reduced to the desired working PRESSURE for the The desired working PRESSURE for the operation may range from low PRESSURE application, to accomplish this a PRESSURE reducing valve commonly referred up to 15 PSIG to a much higher working PRESSURE (7500-PSIG). The regulator to a regulator needs to be selected. Proper selection is critical for a safe and selected must be able to supply the proper working PRESSURE consistent with effective transfer of the gas from the gas supply to the instrument. Regulators the requirements of the process. are designed to CONTROL PRESSURE . Regulators will not measure or CONTROL flow.

6 An external device such as a flowmeter or metering valve specifically designed for flow CONTROL should be used for that purpose. Gas Purity Selection of the correct regulator involves many variables. All items must be Maintaining the purity level of the gas is of primary importance in the considered in making the proper regulator selection. selection of the regulator. The selected regulator must be resistant to any introduction of contaminants that can be detrimental to the process. In addition to the proper selection of materials for gas compatibility, the design, Materials Compatibility assembly and testing of the regulator are critical items to consider in the selection process. Clean room assembly and Helium leak testing are common Materials used to construct the PRESSURE regulator need to be compatible with the intended gas service. All the wetted areas (parts of the regulator in procedures used to insure the integrity of the regulator.)

7 Contact with the gas) must be selected to avoid any reaction with the gas that can cause contamination in the gas stream or deterioration of the regulator components. Refer to Gas Materials Compatibility Table on Page 107. PRESSURE regulation, single-stage or two-stage design Inlet PRESSURE Rating All regulators are designed to reduce the inlet PRESSURE to a desired working PRESSURE . The regulator can reduce the PRESSURE in either one step or two Inlet pressures can range from low PRESSURE in pipeline usage to high steps. A single-stage regulator reduces the PRESSURE in one step and a two- PRESSURE from compressed gas cylinders. Regulators used in a pipeline will stage regulator reduces the PRESSURE in two steps, either may be suitable for normally have only one gauge to indicate delivery PRESSURE while a cylinder the application based on the desired PRESSURE CONTROL .

8 Single-Stage regulators regulator will have two gauges; one to show inlet PRESSURE and the other to are best suited for applications where manual periodic adjustment of the show delivery PRESSURE . An exception to this would be the use of regulators delivery PRESSURE settings is not a problem and the inlet PRESSURE remains for liquid gas cylinders. In this application, only the delivery PRESSURE gauge constant, such as the case in gas withdrawal from liquid cylinders. would be required since the supply PRESSURE is generally constant. When selecting the regulator it must be capable of handling the incoming inlet Two-stage regulators are two regulators built into a single regulator body. The PRESSURE . When the gas is supplied from a cylinder the CGA ( compressed first regulator (first stage) is preset at a non-adjustable PRESSURE to reduce the Gas Association) inlet connection number will dictate the maximum supply incoming PRESSURE to a lower PRESSURE referred to as the intermediate stage.

9 PRESSURE . This PRESSURE can range from 100 PSI to over 6000 PSI. The second regulator (second stage) is adjustable within the desired delivery range. The two-stage regulator allows for steady delivery PRESSURE without periodic adjustment, well suited for applications requiring constant PRESSURE from full to nearly empty cylinder. Delivery PRESSURE Gauge Inlet PRESSURE Gauge Regulator Body Outlet Valve Outlet Port to Process Inlet Fitting to Cylinder (CGA connection). PRESSURE Adjusting Knob Orders: THE Harris Products Group . 8 High Purity PRESSURE Regulators Selection Operation of PRESSURE Regulators Two-Stage Regulators These regulators incorporate all components of a single-stage regulator. In Single-Stage Regulators addition, however, they also contain a second PRESSURE adjusting spring, Gas enters the inlet (high- PRESSURE ) chamber and its PRESSURE is indicated diaphragm, and valve seat assembly.

10 The first stage is not user adjustable on the inlet PRESSURE gauge. When the PRESSURE adjusting knob is turned with the PRESSURE adjusting spring pre- compressed at the factory. This counterclockwise and completely backed out to the stop, a valve and seat allows the first stage to feed PRESSURE to the second (adjustable) stage. The assembly located between the inlet chamber and the delivery (low PRESSURE ) normal maximum delivery PRESSURE for two-stage regulators is 500 PSI. chamber prevents gas from moving any further. A filter located at the inlet to the valve and seat assembly, removes particulate matter from the gas stream The second stage then performs in a manner similar to that of a single-stage to help protect the seat area. regulator, except that the inlet PRESSURE to the second stage is relatively constant. The two-step PRESSURE reduction produces a final delivery PRESSURE Turning the PRESSURE -adjusting knob clockwise causes the adjusting screw to showing little effect from changes in cylinder PRESSURE .