A.R.I. S-022-HC Installation Operation & Maintenance
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A.R.I. S-022-HC Installation Operation & Maintenance

High capacity automatic air release valve
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S-022-HC.IOM.ENG02
Installation, Operation & Maintenance
HIGH CAPACITY AUTOMATIC AIR RELEASE VALVE
MODEL S-022-HC
The following is a step by step narrated description of the A.R.I. S-022-HC High Capacity Automatic Air Valve
installation, operation and maintenance processes.
The S-022-HC air valve is specially designed to operate with liquids carrying solid particles in systems
operating under pressure. Please consult A.R.I. for the pressure and temperature framework of this model
specifications table and for other products designed for hazardous liquids systems.

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Summary of Contents for A.R.I. S-022-HC

  • Page 1 HIGH CAPACITY AUTOMATIC AIR RELEASE VALVE MODEL S-022-HC The following is a step by step narrated description of the A.R.I. S-022-HC High Capacity Automatic Air Valve installation, operation and maintenance processes. The S-022-HC air valve is specially designed to operate with liquids carrying solid particles in systems operating under pressure.

  • Page 2: Table Of Contents

    IOM S-022-HC TABLE OF CONTENTS 1. SAFETY INSTRUCTIONS ............................. 3 2. INSTALLATION ..............................6 3. OPERATION ..............................9 4. TROUBLE SHOOTING ............................9 5. PERIODIC MAINTENANCE ..........................10 5.1. Preparation ............................10 5.2. First Stage Maintenance ........................10 5.3. Second Stage Maintenance ........................14 6.

  • Page 3: Safety Instructions

    IOM S-022-HC 1. SAFETY INSTRUCTIONS General 1. A.R.I. products always operate as components in a larger system. It is essential for the system designers, installers, operators and maintenance personnel to comply with all the relevant safety standards. 2. Installation, operation or maintenance of the product should be done only by qualified workers, technicians...
  • Page 4 IOM S-022-HC Installation 1. Install the product according to the detailed Installation Instructions provided with it by A.R.I. and according to the description given in this manual. 2. The user should install a manual Isolation Valve under the product's inlet port.
  • Page 5 IOM S-022-HC Before returning to regular operation 1. Re-assemble any protection covers or protection mechanisms removed during service or maintenance operations. 2. Make sure that all the tools, ladders, lifting devices, etc. used during the maintenance procedures are taken away from the product area and stored.

  • Page 6: Installation

    IOM S-022-HC 2. INSTALLATION Important: Before performing any work on the air valve make sure that all workers on site are familiar with the safety instructions and the relevant local and general safety instructions and work regulations. 2.1. Installation Recommendations Single Air Valve on an Isolating Valve at 45°...
  • Page 7 IOM S-022-HC 2.2. Conventions and Measurements This paragraph presents and explains the terms and measurements used for the Installation process. D = Diameter of pipeline Isolation Valve d = diameter of riser H = Height of riser on the pipeline (Measured from crown of pipeline) •...
  • Page 8 IOM S-022-HC 2.3. Installation Instructions Flush the system before installing the air valve to avoid any debris or sharp objects getting into the air valve. 2. Carefully remove the air valve from the shipping package. Unload all air valves carefully to a sturdy level surface taking care not to drop them.

  • Page 9: Operation

    IOM S-022-HC 3. OPERATION When the system is charged and the pipeline begins to fill, the water flowing in the pipeline enters into the combination air valve, raising the air/ vacuum and air release floats to their sealing position. During filling, air is discharged mainly through the air/ vacuum orifice as well as small amounts of air released through the air release orifice.

  • Page 10: Periodic Maintenance

    IOM S-022-HC 5. PERIODIC MAINTENANCE Please note that the periodic maintenance of the air valve is an integral part of the proper pipeline maintenance regime; it should be maintained at least once a year in accordance with the quality and composition of the fluid in the system.
  • Page 11 IOM S-022-HC 5.2.2 Removal of the Sealing Assembly • Using the two 19mm combination spanners, open and remove the four Bolts, Nuts and Washers [1] • Store the four Bolts, Nuts and Washers in an accessible area [2] • Lift and extract the Cover assembly from the valve Body [3] 5.2.3.
  • Page 12 IOM S-022-HC • Thoroughly clean the body’s O-Ring (replace it if needed [2].
  • Page 13 IOM S-022-HC 5.2.4. Assembly and Testing for Leaks • Insert the Cover & Float Assembly into the main valve Body [1]. • Insert the four Bolts, Nuts and Washers [2] • Using the two 19mm combination spanners, tighten using the crossover method [3] •...

  • Page 14: Second Stage Maintenance

    IOM S-022-HC 5.3. Second Stage Maintenance Perform if the first stage doesn’t solve the leak, if one of the seals or inner parts need replacement or for periodic maintenance to thoroughly clean the valve. 5.3.1. Releasing Pressure • Shut the isolating valve located on the riser under the air valve •...
  • Page 15 IOM S-022-HC • Using the two 19mm combination spanners, open and remove the four Bolts, Nuts and Washers [3] • Store the four Bolts, Nuts and Washers in an accessible area [4] • Lift and extract the Cover assembly from the valve...
  • Page 16 IOM S-022-HC 5.3.3. Disassembly of the Float • Use the Long-nose Pliers to release and remove the Circlip [1], [2], [3] and [4]...
  • Page 17 IOM S-022-HC • Use the 10mm combination spanner to disconnect the Float Stem together with the nut, spring and washers from the Automatic Air Release Assembly [1] and [2] 5.3.4. Disassembly of the Rolling Seal • Locate the Rolling Seal [1] and pull it out, starting...
  • Page 18 IOM S-022-HC • Pull out the other side of the Rolling Seal from the side marked “B” in picture [4]. Inspect the Rolling Seal and replace it if needed [5]. 5.3.5. Disassembly of the O-ring • Locate the O-ring [1] and pull it out using a Flat tip Screwdriver [2].
  • Page 19 IOM S-022-HC 5.3.6. Reassembling the air valve • Apply Silicon Grease on the O-ring [1] and re-install it to its designated groove in the Automatic Air Release Assembly [2]. • Apply Silicon Grease on the Rolling Seal [1].
  • Page 20 IOM S-022-HC • Re-install the Rolling Seal in reverse order, first “B” [1] & [2] and then “A” [3] & [4]. • Make sure that the Rolling Seal in inserted deep enough into port “A” [1] so it is perfectly aligned...
  • Page 21 IOM S-022-HC • Reinstall the float rod, spring and washers [1] on the Automatic Air Release Assembly [2]. • Reinstall the Stem Assembly to the Air Valve Cover [1]. Make sure that the pin of the Automatic Air Release Assembly is inserted to its designated hole...
  • Page 22 IOM S-022-HC • Use the Long-nose Pliers to install the Circlip [1] and secure the Automatic Air Release Assembly to it place [2] and [3]. • Insert the Float assembly and the cover to the Air Valve Body [1] and screw the cover to the body [2]...
  • Page 23 IOM S-022-HC Testing for Leaks • Close the Ball Valve [1] & [2]. Slowly open the isolating valve located on the riser under the air valve. Look for leaks in the Cover Discharge Outlet.

  • Page 24: Assembly Bom Table And Drawing

    IOM S-022-HC 6. ASSEMBLY BOM TABLE AND DRAWING Elbow Circlip Bolt Nut & Washer Cover Air Release Assembly Float Assembly O-Ring Body Ball Valve...
  • Page 25 IOM S-022-HC Automatic Air Release Relief Valve Spring Rolling Seal Lever Seal Roll Pin O-ring Self-lock Nut Washer Float Washer Float...

  • Page 26: Limited Warranty

    IOM S-022-HC 7. A.R.I. LIMITED WARRANTY A.R.I. manufactured products are guaranteed to be free from defect in material and/or workmanship and to perform as advertised when properly installed, used and maintained in accordance with current instructions, written or verbal. Should any item prove defective within the time period set forth for that item(s), but in any case not later than within 12 (Twelve) months of that product having left A.R.I.’s premises, and...

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