Materials Selection: Series 58 & 59

 
 

Type 59 FULLY WELDED BALL VALVES

Position Description Material Notes
151 Lower trunnion plate A-350-LF2
149 Vent plug Carbon steel
65 Seat insert PTFE CCG 2
61 Stop collar Fe 360 3
58 Trunnion bearing Dry bearing
57 Stem pin 42CrMo4
53 Stem bearing Dry bearing
51 Lower trunnion 42CrMo4 (AISI 4140) 1
31 Antistatic device 18-8
30 Stem grease fitting AISI 1018
28 Drain plug Carbon steel
27 Seat spring 18-8
25b Seat ring with insert A-350-LF2 + PTFE CCG 1
22 Upper thrust washer Dry bearing
20 Adapter plate Fe 430 Gr. B 4
19 Stem F.S. seal Graphite
18 Top cover F.S. seal Graphite
15 Top cover o-ring Viton
14 Seat gasket o-ring Viton
12 Stem o-ring Viton
10a Bearing housing capscrew A-193-B7 3
10 Adapter plate capscrew A-193-B7 4
9 Top cover capscrew A-193-B7
6 Gland bushing AISI 1018 1
5 Top cover A-350-LF2
4 Stem 42CrMo4 (AISI 4140) 1
3 Ball A-350-LF2 1
2 Closure A-350-LF2
1 Body A-350-LF2
6.1.png

7.1.png
 
7.2.png

6.2.png

7.3.png

Type 58 Fully welded Ball Valves

Position Description Material Notes
149 Vent plug Carbon steel
48a Grease seal o-ring Viton 3
46 Bearing retainer pin 42CrMo4 (AISI 4140)
44 Check valve AISI 1018
42 Washer capscrew A-193-B7
41 Seat grease fitting AISI 1018
38 Washer Carbon steel
36 Pin C75
33 Bearing Dry bearing
32 Bearing retainer Fe510
31 Antistatic device 18-8
30 Stem grease fitting AISI 1018
28 Drain plug Carbon steel
27 Seat spring 18-8
26 Inner seat ring A-350-LF2 1
25 Outer seat ring A-350-LF2 1
23 Lower thrust washer Fe 360 + PPS
22 Upper thrust washer Dry bearing
20 Adapter plate Fe 430 Gr. B 4
19 Stem F.S. seal Graphite
18 Top cover F.S. seal Graphite
15 Top cover o-ring Viton 3
14 Seat gasket o-ring Viton 3
13 Seal o-ring Viton 2-3
12 Stem o-ring Viton 3
10 Adapter plate capscrew A-193-B7
9 Top cover capscrew A-193-B7
6 Gland bushing AISI 1018 1
5 Top cover A-350-LF2
4 Stem C40 (AISI 1040) 1
3 Ball A-350-LF2 1
2 Closure A-350-LF2
1 Body A-350-LF2

Standard Materials

Material for general service (complies to NACE MR0175) CARBON STEEL + ENP
ANSI class 600
Temperature -50℉ + 350℉
Body ASTM A350 Gr.LF2
Ball ASTM A350 Gr.LF2 + ENP
Seat ASTM A350 Gr.LF2 + ENP
Stem AISI 4140 + ENP
Seat gasket PTFE
Other seats Viton
Seat spring Inconel X 750
Alternative material selections available upon request