Goulds Pumps 3420 - IOM - Manual (Page 67)

Table 9 (mm)
Group
Impeller
Size
Material Vanes
Standard Impeller and
Casing Wearing Rings
(Fig. 51)
Flashed Impeller Wearing Rings
(Fig. 52)
Impeller
Ring (A) Casing
Ring
Diameter
Clearance
(B)
Impeller
Ring (C) Casing
Ring
Diameter
Clearance
Length
(E)
Angle
(F)
SX
12x14-15
Iron &
Bronze
7
284.84 285.17 0.33 284.84 285.17 0.33
9.65 8°
284.78 285.22 0.43 284.78 285.22 0.43
Steel 7
284.84 285.42 0.58 285.09 285.42 0.58
9.65 8°
284.78 285.47 0.69 285.04 285.47 0.69
16x18-17H
Iron &
Bronze
7
354.84 355.17 0.33 354.84 355.17 0.33
12.70 8°
354.79 355.22 0.43 354.79 355.22 0.43
Steel 7
354.84 355.42 0.58 354.84 355.42 0.58
12.70 8°
354.79 355.47 0.69 354.79 355.47 0.69
MX 18x20-20
Iron &
Bronze
5 & 6
419.84 420.17 0.33 419.84 420.17 0.33
22.10 8°
419.79 420.22 0.43 419.79 420.22 0.43
Steel 5 & 6
419.84 441.27 0.58 419.84 441.27 0.58
22.10 8°
419.79 441.35 0.69 419.79 441.35 0.69
M
16x18-30
Iron &
Bronze
5
440.82 441.53 0.46 440.82 441.53 0.46
9.65 8°
440.74 441.60 0.61 440.74 441.60 0.61
Steel 5
440.82 441.27 0.71 440.82 441.27 0.71
9.65 8°
440.74 441.35 0.86 440.74 441.35 0.86
16x18-30H
Iron &
Bronze
7
440.82 441.53 0.46 440.82 441.53 0.46
15.75 8°
440.74 441.60 0.61 440.74 441.60 0.61
Steel 7
440.82 441.27 0.71 440.82 441.27 0.71
15.75 8°
440.74 441.35 0.86 440.74 441.35 0.86
16x18-30G
Iron &
Bronze
7
440.82 441.53 0.46 440.82 441.53 0.46
15.75 8°
440.74 454.30 0.61 440.74 454.30 0.61
Steel 7
440.82 441.53 0.71 440.82 441.53 0.71
15.75 8°
440.74 441.60 0.86 440.74 441.60 0.86
18x20-30
Iron &
Bronze
5
496.01 496.52 0.51 472.31 472.82 0.51
9.65 8°
495.94 496.60 0.66 472.24 472.90 0.66
Steel 5
496.01 496.77 0.76 472.31 473.08 0.76
9.65 8°
495.94 496.85 0.91 472.24 473.15 0.91
20x24-24
Iron &
Bronze
5 & 6
495.96 466.47 0.51 465.96 466.47 0.51
9.65 8°
465.89 466.55 0.66 465.89 466.55 0.66
Steel 5 & 6
465.96 466.73 0.76 465.96 466.73 0.76
9.65 8°
465.89 466.80 0.91 465.89 466.80 0.91
20x24-30
Iron &
Bronze
5
HIGH
RPM
496.01 496.52 0.51 472.31 472.82 0.51
9.65 8°
495.94 496.60 0.66 472.24 472.90 0.66
Steel
5
HIGH
RPM
496.01 496.52 0.51 472.31 473.08 0.76
9.65 8°
495.94 496.60 0.66 472.24 473.15 0.91
20x24-30
Iron &
Bronze
5
LOW
RPM
556.34 556.97 0.64 532.59 533.15 0.56
9.65 8°
556.26 556.90 0.64 532.51 533.22 0.71
Steel
5
LOW
RPM
556.34 556.97 0.64 532.59 533.40 0.81
9.65 8°
556.26 556.90 0.64 532.51 533.48 0.97
3420 IOM 8/09
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