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D070.IOM.ENG04
Installation, Operation & Maintenance
DYNAMIC COMBINATION AIR VALVE
MODEL D-070
The following is a step by step narrated description of the A.R.I. D-070 dynamic combination air valve
installation, operation and maintenance processes.
The D-070 air valve is designed for water 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
wastewater, or hazardous liquids systems.
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Summary of Contents for A.R.I. D-070
- Page 1 DYNAMIC COMBINATION AIR VALVE MODEL D-070 The following is a step by step narrated description of the A.R.I. D-070 dynamic combination air valve installation, operation and maintenance processes. The D-070 air valve is designed for water systems that operate within the pressure and temperature framework of the model's specifications table.
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Page 2: Table Of Contents
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 17 7. Ordering Replacement Parts ..................Page 18 8. -
Page 3: Safety Instructions
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 contractors using only good engineering practices, complying with and observing all conventional safety instructions in order to minimize risk and/or danger and/or hazard to workers, the public or to property in the vicinity in accordance with all relevant local standards. -
Page 4: Installation
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 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. Remove grease and fat material residues in order to avoid slipping.
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Page 6: Installation Recommendations
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° to Air Valve outlet Two Air Valves on a shared Isolating Valve. -
Page 7: Installation Instructions
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
2.4. Directions for Discharge Outlet D-070 Air Valve Recommended to leave the discharge outlet completely open and unhindered: L < 5D Avoid directing the discharge outlet opening in the direction of workers, bystanders or animals. Avoid directing the discharge outlet opening in the direction of vulnerable equipment that can be damaged, such as electrical equipment, unstable structures, etc. -
Page 9: Periodic Maintenance
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. Important: Before performing any work on the air valve, make sure that all workers on site are familiar with the safety instructions as appear in chapter 1 of this document and with all the relevant local and general safety instructions, standards and work regulations. - Page 10 5.2. Removing the Pilot • Unscrew and remove the Pilot Body [1], [2], [3] 5.3. Maintenance of the Pilot • Hold the Pilot Body [1], turn it to the side [2] and remove the Clamping Stem the Float , together with the Rolling Seal •...
- Page 11 • Visually check the condition of the Rolling Seal [1]. If any cracks or tears are found, remove it from the Float [2]. • When required, replace the seal by inserting side 1 side 2 a new Rolling Seal into its designated groove. Please note: side 1 of the groove is slightly wider than the other, therefore the seal can be inserted only from the wider side of the...
- Page 12 • Using the 4.5mm roll pin punch, push the Rolling Seal into its place [1], make sure to align the arrow marked on the seal (A) with the center line marking of the Float (B) • Check that the Disc at the opposite side of the Float it is not torn or cracked [1], make sure that it is loose and can freely rotate.
- Page 13 • Insert the Float halfway into the Body [1], insert the Clamping Stem into the Rolling Seal groove of the Body; make sure that it is inserted in the direction depicted in picture [2]. Push the Float and the Clamping Stem together downwards into the Body until they are locked [3].
- Page 14 5.4. Maintaining the Dynamic Valve Body • Using the 19mm combination spanners, unscrew the bolts that connect the Cover to the Body [1] and remove the Cover [2]. • Remove the Rolling Diaphragm Sealing Assembly from the Body [1]. • Thoroughly wash and clean all the components under clean running water, remove coarse grime and accumulated scale. Pay attention to the passage opening of the Cover [1], and the Orifice Seat and Seal of the Body [2].
- Page 15 • Fold backwards the rubber part of the Rolling Diaphragm [1] and check for any cracks and tears [2] & [3]. Replace the entire Rolling Diaphragm Sealing Assembly if any damage is detected. Do not open screws of the assembly under any circumstances! Make sure that the passage opening of the Diaphragm and the rubber Seal are clean [1].
- Page 16 • Reassemble the air valve; insert the Diaphragm [1], reinstall the Cover [2] make sure that the discharge outlets are aligned [3] and the Washers are correctly installed on the Cover bolts [4]. Tighten the bolts using the crossover method [5]. •...
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Page 17: Assembly Bom Table And Drawing
6. ASSEMBLY BOM TABLE AND DRAWING No. Part name QTY. Pilot Body Assy. Rolling Seal 3”, 4” Seal Assy. 6”, 8” Clamping Stem Pilot Float Assy. O-ring Bolt Washer Cover Rolling Diaphragm Sealing Assy. Body Nut 6”, 8” Plug Hoist Ring 6”, 8” Threaded Rod 6”, 8”... -
Page 18: Ordering Replacement Parts
Together with the ID tag, please send a completed copy of this page or send a replacements parts request; to include the following information: 1. IOM Manual D-070 Dynamic Air Valve – Manual No. D070.IOM.ENG01 2. BOM Part No. (see page 17) 3. -
Page 19: Limited Warranty
8. 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.
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