A.R.I. D-090P EN - Manual

Underground Air Valve system D-090-P.
Maintenance Instructions.
1. Part one- General.
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1. Routine service is an integral part of the standard procedure of a water supply
system. The recommended routine maintenance period is once or twice a year
depending on the water quality requirement of the individual system.
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11
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12
Number in
Drawing
Discription Material
1 Seal Assembly.
2 One-way valve ( Vacuum Only ).
3 Shaft. Stainless steel.
4 Outer Cover. Reinforced Nylon.
5 “O” ring. NBR.
6 Body. Reinforced Nylon.
7 Base. Reinforced Nylon.
8 Float. Foamed Polypropylene.
9 Entrance to Drain Valve.
10 Base “O” rings. NBR.
11 Lock Pin. Stainless steel.
12 “O” ring. NBR.
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