Download
Share
Print this page
A.R.I. D-020 Installation Operation & Maintenance
  1. Manuals
  2. Brands
  3. A.R.I. Manuals
  4. Control Unit
  5. D-020
  6. Installation operation & maintenance

A.R.I. D-020 Installation Operation & Maintenance

Combination air valve
Hide thumbs Also See for D-020:

Advertisement

Quick Links

Download this manual
D020.IOM.ENG04
Installation, Operation & Maintenance
COMBINATION AIR VALVE
MODEL D-020
The following is a step by step narrated description of the A.R.I. D-020 industrial combination air valve
installation, operation and maintenance processes.
The D-020 air valve is designed for systems that operate within the pressure and temperature framework
of the model's specifications table. Please consult A.R.I. for products designed for other hazardous liquids
systems.

Advertisement

loading
Need help?

Need help?

Do you have a question about the D-020 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for A.R.I. D-020

Summary of Contents for A.R.I. D-020

  • Page 1 COMBINATION AIR VALVE MODEL D-020 The following is a step by step narrated description of the A.R.I. D-020 industrial combination air valve installation, operation and maintenance processes. The D-020 air valve is designed for systems that operate within the pressure and temperature framework of the model's specifications table.

  • Page 2: Table Of Contents

    IOM D-020 TABLE OF CONTENTS 1. Safety Instructions ......................Page 3 2. Installation ........................Page 6 3. Operation ........................Page 8 4. Troubleshooting ......................Page 8 5. Periodic Maintenance ....................Page 9 6. Assembly BOM table and Drawing ................ Page 19 7.

  • Page 3: Safety Instructions

    IOM D-020 1. SAFETY INSTRUCTIONS General 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. Installation, operation or maintenance of the product should be done only by qualified workers, technicians and/or...
  • Page 4 IOM D-020 Installation 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. The user should install a manual Isolation Valve under the product's inlet port. In all installation sites, the user should enable good visibility and verify that the work and auxiliary equipment used are done in accordance with the relevant local authorized standards.
  • Page 5 IOM D-020 Before returning to regular operation Re-assemble any protection covers or protection mechanisms removed during service or maintenance operations. 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 D-020 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 D-020 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: Operation

    IOM D-020 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 9: Periodic Maintenance

    IOM D-020 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 10 IOM D-020 5.2. Removing the Cover Assembly • Turn the black Body counterclockwise to loosen it from the Cover [1] • Using the two 19mm combination spanners, open and remove the four Bolts, Nuts and Washers [2] • Store the four Bolts, Nuts and Washers in an accessible area [3] •...
  • Page 11 IOM D-020 5.2. Periodic Maintenance • Grasp the Clamping Stem and pull out to remove it from the valve Body [1], [2], [3] • Separate the Cover & Float assembly from the black Body [1], [2] • Check the integrity of the Rolling Seal by stretching it to check for cracks or tears [1], [2]...
  • Page 12 IOM D-020 • Take a new Rolling Seal Assembly and dip the tail end into the liquid soap solution [1] • Note for the correct direction [1]. Insert the tail end of the Rolling Seal Assembly into the groove on the Float [2].
  • Page 13 IOM D-020 • Check the integrity of the upper side Cover O-ring [1]. Remove and replace, if necessary [2]. • Thoroughly but gently wash and clean all the components (Cover & Float Assembly [1] + Air Valve Body [2]) under clean...
  • Page 14 IOM D-020 • Important: Pay special attention to the sealing area of the black Body [1], the area around the O-ring in the Cover [2], the large Float [3] and the inside of the valve Body [4].
  • Page 15 IOM D-020 • Position the Cover & Float assembly at the edge of the table so the float can hang over the end of the table [1]. • Insert the triangular end of the Rolling Seal assembly into the groove on the front side of the black Body [1].
  • Page 16 IOM D-020 • Hold the Clamping Stem[1], and insert it with smooth side up into the same groove and just behind the triangular end of the Rolling Seal [2] • Simultaneously push down on the Float and the Clamping Stem [1] until the end so they sit flush with the valve black Body [2], [3].
  • Page 17 IOM D-020 • Manually screw the black Body [1] into the top of the Cover [2], [3]. • Insert the Cover & Float Assembly into the main valve Body [1], [2].
  • Page 18 IOM D-020 • Insert the four Bolts, Nuts and Washers [1]. Tighten using the crossover method [2]. • Close the Ball Valve [3], [4]. * Slowly open the isolating valve located on the riser under the air valve. Check the air valve for proper operation.

  • Page 19: Assembly Bom Table And Drawing

    IOM D-020 6. ASSEMBLY BOM TABLE AND DRAWING No. Part name QTY. Discharge Elbow Extension Body Clamping Stem Rolling Seal Assembly Float Bolt, Nut & Washer Domed Nut Stopper Spring O-ring Cover Float Assy. O-ring Body Ball Valve...

  • Page 20: Ordering Replacement Parts

    IOM D-020 7. Ordering Replacement Parts Manual No. D020.IOM.ENG01 Size Cat. No. BOM No. Part Quantity Discharge Elbow Extension Clamping Stem Rolling Seal Assembly Bolt, Nut & Washer Domed Nut Stopper [10] Spring [11] O-ring (Cover) [13] Float Assembly [1-6], [8-13] Complete Float, Seal &...

  • Page 21: Limited Warranty

    A.R.I. LIMITED WARRANTY A.R.I. Standard International 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.