Grundfos CRN 95 - 2 Construction; CR 95, 125 and 155

Construction
CR, CRN 95-155
2
8
2. Construction
CR 95, 125 and 155
Materials, CR
1)
Applies to CR 95.
2)
Applies to CR 125 to CR 155.
3)
Only fitted on pumps with 100 Hp (75 kW) motors or larger.
TM06 9206 1917 TM06 5161 1917
ANSI flange
1
2
3
4
6
8
9
10
12
11
13
5
7
Pos. Designation Materials DIN/EN ≈ AISI/ASTM
1 Motor stool Ductile cast iron EN-GJS-500-7 ASTM A536-84 70-50-05
2 Shaft Stainless steel
EN10088 1.4057
1)
EN10088 1.4462
2)
EN10088 1.4057=431
EN10088 1.4462=318 LN
3 Shaft seal (seal faces) Silicon carbide/Silicon carbide - -
4 Pump head Ductile cast iron EN-GJS-500-7 ASTM A536-84 70-50-05
5 Support bearing (bush) Carbon-graphite filled PTFE
6 Impeller Stainless steel EN10088 1.4301 AISI 304
7 Neck ring PEEK - -
8 Chamber Stainless steel EN10088 1.4301 AISI 304
9 Sleeve Stainless steel
EN10088 1.4301
1)
EN10088 1.4404
2)
AISI 304
1)
AISI 316 L
2)
10 Bearing ring
Tungsten carbide/Tungsten
carbide
--
11 Thrust handling device
3)
Stainless steel
EN10088 1.4401
EN10283 1.4408
AISI 316/CF 8M
Silicon carbide/Tungsten carbide - -
12 Base Ductile cast iron EN-GJS-500-7 ASTM A536-84 70-50-05
13 Base plate Ductile cast iron EN-GJS-500-7 ASTM A536-84 70-50-05
Rubber parts EPDM or FKM - -