Materials of construction – Xylem IM009 R02 Model 3657/3757 User Manual
Page 7

7
Pump End Components
Item No.
Description
Material
100* Casing
101*
Impeller
316 SS investment cast
184*
Seal housing
304*
Impeller nut
316 SS
422
Impeller stud
Steel
178
Impeller key
126*
Shaft sleeve
316 SS
412A
O-ring impeller
BUNA
408*
Pipe plug –
1
⁄
4
” NPT
316 SS
(casing drain)
513
O-ring casing
BUNA
370
Hex head cap screw
(adapter to casing)
304SS
370H
Hex head cap screw
(adapter to seal housing)
Carbon/sil car/viton(std.)
383
Mechanical seal
Carbon/sil car/EPR (opt.)
Sil car/sil car/viton (opt.)
Power End Components
108
Adapter
Cast iron
228
Bearing frame
122
Pump shaft
Steel
168
Ball bearing (inboard)
Steel
112
Ball bearing (outboard)
123
V-ring deflector
BUNA-N
136
Lock nut bearing
Steel
382
Lock washer bearing
134
Bearing cover
Cast iron
333A
Lip seal bearing
BUNA/steel
193
Grease fitting
370B
Hex head cap screw
(adapter to bearing frame)
Steel
370C
Hex head cap screw
(bearing frame to cover)
Material
Engineering Standard
Cast iron
ASTM A48 CL20
Steel
ASTM A108/SAE 1200 series
316 SS investment cast
ASTM A743 grade CF-8M
316 SS
ASTM A276 type 316
304 SS
ASTM A276 type304
* Indicates components exposed to pumpage.
Materials of Construction
Materials
Specifications
101
178
422
304
412A
383
408
Optional,
408
Opcional
513
370
370H 184
371
100
108
126
101
126
178
422
304
412A
383
408
Optional,
408
Opcional
513
370 370H 184 370B
382 136 333A
100
108 123 168 228 122 112 370C
134