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A.R.I. D-060, Installation Operation & Maintenance, Page: 9 / 21

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A.R.I. D-060 Installation Operation & Maintenance Download Page 9

9

 

IOM

 

 

 

4.

 

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  chapter  of  this  document  and  with  all  the  relevant  local  and  general  safety 
instructions, standards and work regulations. 

 

 

4.1.

 

Preparation 

 

Releasing Pressure 

 

Shut the isolating valve located on the riser under the air valve.  

Option A: 

 

Using two combination spanners, partially unscrew the bolts connecting the air valve to the riser in order 
to release the pressure. Wait till the pressure is released. 

 

Option B. – for air valves with Plug: 

 

Use a ratchet box wrench to gradually release the Plug of the pressure release port, wait till the pressure 
is released and then unscrew the Plug completely, remove it and drain the air valve. 

 
 

The maintenance procedure of the D-060 air valve is divided into the following two separate processes:  

 

Automatic valve 

 

Air & Vacuum valve.

Summary of Contents for D-060

Page 1: ... an Automatic Air Release valve and an Air Vacuum valve The Air Release component is designed to automatically release small pockets of air to the atmosphere as they accumulate along a pipeline or piping system when it is full and operating under pressure The Air Vacuum component is designed to automatically discharge or admit large volumes of air during the filling or draining of a pipeline or pi...

Page 2: ...d hereto may be used in any form or by any means without the prior written consent from A R I If you received this Disclaimer and or in any document enclosedheretoinerrororby mistakeorifthis Disclaimerand orinanydocumentenclosedheretoisnotintendedforyou pleasenotifyA R I inwriting immediately A R I assumes that all users understand the risks involved within this Disclaimer and or in any document e...

Page 3: ...ons table doesn t include pressure changes caused by water hammer and pressure surge effects Use the product only according to its designated pressure rate specifications 10 Use the product only for its intended use as designed by A R I Any misuse of the product may lead to undesired damages and may affect your warranty coverage Please consult with A R I prior to any non regular use of this produc...

Page 4: ...Forairvalveswithout apressurereleaseoutlet slowlyunscrewtheflangeboltsuntilallthepressureisreleased fromthe valve 5 Make sure the air valve is empty of all liquid prior to commencing maintenance 6 Removetheproductfromthelineonly afterensuringthat internalpressurehasbeen released 7 Place warning signs around the work area as required by thelocal standards and procedures 8 Inspecttheproduct ssafety ...

Page 5: ... Isolating Valve at 45 to Air Valve outlet Two Air Valves on an Air Trap with separate Isolating Valves Air Valve outlets face outward and the Isolating Valves at 45 to Air Valve outlets Two Air Valves on a shared Isolating Valve Air Valves outlets face outward and the Isolating Valve at 45 to Air Valve outlets Underground Installations Underground installations require a venting pipe from the man...

Page 6: ...s up to 12 300mm in diameter D the Air Trap diameter d should be the same as the pipeline diameter For larger pipelines of up to 60 1500mm in diameter D the Air Trap diameter d should be 60 of the pipeline diameter For larger than 60 1500mm pipelines D the Air Trap diameter d should be 35 of the pipeline diameter The Air Trap length H should allow easy access to the air valve from below and should...

Page 7: ...Place washers on each of the bolts nuts that connect the air valve flange to the isolating valve flange 7 Tighten all the bolts and nuts using the crossover method 8 The closure tightness of the bolts and nuts shall be according to the standard torque for their specific size 9 Use ring wrench keys for the closing and opening of all bolts of the air valve including the flange bolts 2 4 Directions f...

Page 8: ... is essential to efficiently drain the system The automatic air release component releases entrapped air in pressurized systems As the system starts to fill the valve functions according to the following stages 1 Air in the pipeline is discharged by the valve 2 Liquid enters the valve lifting the float which pushes the sealing mechanism to its sealing position 3 Entrapped air which accumulates at ...

Page 9: ...fety instructions standards and work regulations 4 1 Preparation Releasing Pressure Shut the isolating valve located on the riser under the air valve Option A Using two combination spanners partially unscrew the bolts connecting the air valve to the riser in order to release the pressure Wait till the pressure is released Option B for air valves with Plug Use a ratchet box wrench to gradually rele...

Page 10: ...e Strainer the Clamping Stem the Float and the Rolling Seal under clean running water 5 Check to make sure that the Rolling Seal is not damaged torn or cracked and is located precisely in the middle of its groove in the Float 6 Replace the Rolling Seal if it is damaged or has been removed from the float 7 Reassemble the air valve in the reverse order 8 First insert half the length of the Rolling S...

Page 11: ...11 IOM S 050 AUTOMATIC VALVE ASSEMBLY BOM TABLE AND DRAWING 1 Body 2 Discharge Outlet Elbow 3 Rolling Seal 4 Float 5 Clamping Stem 6 O ring 7 Base 8 Strainer ...

Page 12: ...g the Strainer the Clamping Stem the Float and the Rolling Seal under clean running water 5 Check to make sure that the Rolling Seal is not damaged torn or cracked and is located precisely in the middle of its groove in the Float 6 Replace the Rolling Seal if it is damaged or has been removed from the float 7 Reassemble the air valve in the reverse order 8 First insert half the length of the Rolli...

Page 13: ...13 IOM S 050C S 052 AUTOMATIC VALVE ASSEMBLY BOM TABLE AND DRAWING 1 Shell 2 O ring 3 Discharge Outlet 4 Body 5 Rolling Seal 6 Float 7 Clamping Stem 8 O ring 9 Base 10 Strainer 9 10 ...

Page 14: ...ing Seal under clean running water 6 Check to make sure that the Rolling Seal is not damaged torn or cracked and is located precisely in the middle of its groove in the Float 7 Replace the Rolling Seal if it is damaged or has been removed from the float 8 Reassemble the air valve in the reverse order 9 First insert half the length of the Rolling Seal into the groove in the Body and then push it th...

Page 15: ...15 IOM S 050L AUTOMATIC VALVE ASSEMBLY BOM TABLE AND DRAWING 1 Body 2 Discharge Outlet 3 Rolling Seal 4 Clamping Stem 5 Float 6 O ring 7 Body Extension 8 Plug 9 Base 10 Strainer 9 10 ...

Page 16: ...m steps 1 3 of the Basic Periodic Maintenance found above 2 Unscrew and remove the Discharge Outlet 3 Remove the Roll pin with the aid of a hand punch small hammer and pliers 4 Press down on the threaded end of the Orifice and Float Assembly that extends out from the top the Cover remove and place it on a flat surface for the next step 5 Remove the damaged Rolling Seal by extracting it from both e...

Page 17: ...UTOMATIC VALVE ASSEMBLY BOM TABLE AND DRAWING 1 Air Release Outlet 2 Circlip 3 Cover 4 O Ring 5 Orifice seat 6 Rolling Seal 7 Lever 8 Roll Pin 9 Float 10 O Ring 11 Bolts Nuts Washers 12 Body 13 Adaptor 10 9 13 12 11 ...

Page 18: ...ime and or accumulated scale 5 Check that the Orifice Seal is not damaged torn and or cracked 6 In case the Orifice Seal is damaged consult your dealer 7 Reassemble the air valve in the reverse order 8 First insert the Float and then place the O ring in the groove 9 Place the Cover on the Body insert the Bolts and Washers and tighten the Nuts 10 Tighten all the Bolts and Nuts using the crossover m...

Page 19: ...19 IOM AIR VACUUM VALVE ASSEMBLY BOM TABLE AND DRAWING 1 Cover Assembly 2 Float 3 O ring 4 Bolts Nuts 5 Body ...

Page 20: ...t a minute and open it again very fast If leaking continues follow instructions for 4 2 Maintenance Automatic Air Release Component Leakage from the Large Orifice Dirt particles stuck on the Orifice Seal Orifice Seat or on the Float Shut the isolating valve wait a minute and open it again very fast If leaking continues follow steps for 4 3 Maintenance Air Vacuum Valve Component ...

Page 21: ...e nor does this warranty extend to any consequential or incidental damages or expenses of any kind or nature regardless of the nature thereof including without limitation injury to persons or property loss of use of the products loss of goodwill loss of profits or any other contingent liabilities of any kind or character alleged to be the cause of loss or damage to the purchaser This warranty does...

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