A.R.I. D-070-P EN - Manual (Page 3)

A.R.I. FLOW CONTROL ACCESSORIES Ltd.
www.arivalves.com [email protected] Tel: 972-4-6761899
PROBLEM REASON SOLUTION
1.
Leaking from the
Drain Port #2
(Fig 1). Debris or scale
build-up on the
rolling seal (5). 1. Shut off the isolating valve on the riser below the air valve.
2. Unscrew the operating valve body. (2).
3. Remove the clamping stem (4) and the operating assembly (5). Wash the
inside of the body, the clamping stem, the operating assembly, the rolling
seal (3), and the O-ring (7) with clean water.
4. Gently wash and clean the sealing area inside the valve body.
5. Check the O-ring visually for any defects. Replace if needed.
6. Check and make sure that the rolling seal (3) is intact (not torn or cracked)
and is positioned precisely in the middle of its groove in the operating
assembly. Replace if needed. The disc at the bottom of the operating
assembly (5) should be loose and move freely.
Do not tighten the holding screw.
7. Reassemble the Operating Valve after maintenance.
2.1.
Leaking from the
Drain Port #1
(Fig 1). Debris or
unwanted object
caught in the air
& vacuum sealing
assembly. (11) 1. Shut off the isolating valve on the riser below the air valve.
2. Unscrew and remove the locking ring (6)together with the attached
operating valve.
3. Remove the air & vacuum sealing assembly (9) from the body (11).
4. Wash the body (14) and the locking ring in clean water in order to remove
coarse grime or accumulated scale.
5. Wash the air & vacuum sealing assembly (9) and check the rubber parts for
any tears.
6. Make sure that the drill hole (Fig. 5) is clean and the passage is open.
7. Make sure the air & vacuum assembly seal is intact and not torn.
8. Replace the whole air & vacuum assembly if any of the above parts are torn
or damaged.
9. Do not open screws of the assembly under any circumstances.
10. Make sure that there is no dirt or debris around the sealing area of the
dynamic valve body.
11. Replace the assembly in the body, reassemble in reverse order, then fasten
and tighten the locking ring.
12. Open the isolating valve beneath the air valve, making sure that there are no
leaks.
2.2.
Leaking from the
Drain Port #1
(Fig 1). Torn sealing
assembly or
diaphragm. (11)
TROUBLESHOOTING GUIDE
MAINTENANCE INSTRUCTIONS D-070-P
EnM-D070-P-11
4
3
11
8
5
2
1
6
10
7
9
Fig. 3
No. Part
1.
Discharge Outlet
2. Operating Valve Body
3. Rolling Seal
4. Clamping Stem
5. Operating Assembly
6. Locking Ring
7. O-Ring
8. Base Adaptor
9. Air & Vacuum Sealing Ass.
10. Supporting Ring
11. Body