ASAHI AV VALVES Installation Operation and Maintenance Manual
Butterfly Valves Type57L-IS (Lug style) 4
(4) Names of parts
No. Description No. Description No. Description
[1] Body [17] Handle Lever [28] Bolt (C)
[1e] Lug-Insert [18] Pin [156] Retaining Ring
[2] Disc [19] Spring [157] Screw (F)
[3] Seat [21] Bolt (B) [158] Gasket (L)
[6] O-Ring (C) [22] Locking Plate [182] O-Ring (H)
[7] Stem [23] Screw (B) [186] Rubber + Washer
[8] Stem Retainer (A) [24] Cap (A)
[16] Handle (A) [25] Gear Box
Nominal Size: 3”-8” (80-200mm
)
Nominal Size: 3”-8” (80-200mm
)
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