When making an inquiry or ordering a trunnion ball valve, the following information should be included: valve size, pressure rating, body type, seat structure, end connection, operators, body material, and trim material.
Valve Size
Full Bore Valve
| Inch |
2 |
2-1/2 |
3 |
4 |
6 |
8 |
10 |
12 |
14 |
16 |
18 |
20 |
22 |
24 |
| mm |
50 |
65 |
80 |
100 |
150 |
200 |
250 |
300 |
350 |
400 |
450 |
500 |
550 |
600 |
| Inch |
26 |
28 |
30 |
32 |
37 |
36 |
38 |
40 |
42 |
46 |
48 |
54 |
56 |
60 |
| mm |
650 |
700 |
750 |
800 |
850 |
900 |
950 |
1000 |
1050 |
1150 |
1200 |
1350 |
1400 |
1500 |
Reduced Bore Valve
| Inch |
2x1-1/2 |
3x2 |
4x3 |
6x4 |
8x6 |
10x8 |
12x10 |
14x10 |
16x12 |
| mm |
50x40 |
80x50 |
100x80 |
150x100 |
200x150 |
250x200 |
300x250 |
350x250 |
400x300 |
| Inch |
18x14 |
20x16 |
22x18 |
24x20 |
26x20 |
28x24 |
30x24 |
32x26 |
34x28 |
| mm |
450x350 |
500x400 |
550x450 |
600x500 |
650x500 |
700x600 |
750x600 |
800x650 |
850x700 |
| Inch |
36x30 |
38x32 |
40x34 |
42x36 |
46x40 |
48x42 |
54x42 |
56x48 |
60x48 |
| mm |
900x750 |
950x800 |
1000x850 |
1050x900 |
1150x1000 |
1200x1000 |
1350x1050 |
1400x1200 |
1500x1200 |
Pressure Rating
| ANSI Class |
150 |
300 |
400 |
600 |
800 |
900 |
1500 |
2500 |
| PN |
20 |
50 |
68 |
100 |
135 |
160 |
260 |
420 |
| Symbol |
1 |
3 |
4 |
6 |
8 |
9 |
15 |
25 |
Body Type
| Symbol |
Body Type |
| SB |
Side Entry, Bolted Body |
| SW |
Side Entry, Welded Body |
| TB |
Top Entry, Bolted Body |
Seat Structure
| Symbol |
Seat Structure |
| DBB |
Double Block and Bleed |
| DIB 1 |
Double Isolation and Bleed Type 1 |
| DIB 2 |
Double Isolation and Bleed Type 2 |
End Connections
| Symbol |
End |
| R |
Raised face flanged end |
| J |
RTJ flanged end |
| B |
Butt-weld end |
| HB |
Hub |
Valve Operators
| Symbol |
Description |
Symbol |
Description |
| L |
Lever |
BS |
Bare shaft |
| G |
Gearoperator |
H |
Hydraulic actuator |
| M |
Electric actuator |
L |
Gas over oil actuator |
| P |
Pneumaticactuator |
D |
Electric over oil actuator |
Body Material
| Steel Classification |
Cast Material |
Forging Material |
Recommended Temperature Limits |
Application |
| ℃ |
℉ |
| Carbon Steel |
A216 WCB |
A105N |
-29 to 425 |
-20 to800 |
Steam, water oil, oil vapour,
gas and general service |
| Carbon Steel |
A352 LCB |
A350 LF2 |
-46 to350 |
-50 to650 |
Low temperature |
| Carbon Steel |
A352 LCC |
A350 LF2 |
-46 to 350 |
-50 to 650 |
| Duplex Stainless Steel |
A995 4A |
A182 F51 |
-51 to 315 |
-60 to 599 |
Corrosion resistance |
| Duplex Stainless Steel |
A995 5A |
A182 F53 |
-51 to 315 |
-60 to 599 |
| Austenitic Stainless Steel |
A351 CF8M |
A182 F316 |
-196 to 815 |
-320 to 1500 |
High and low temperature
corrosion resistance.
Cryogenic service is
also available upon request. |
| Austenitic Stainless Steel |
A351 CF8 |
A182 F304 |
-196 to 815 |
-320 to 1500 |
| Low Carbon Stainless Steel |
A351 CF3M |
A182 F316L |
-196 to 815 |
-320 to 1500 |
| Low Carbon Stainless Steel |
A351 CF3 |
A182 F304L |
-196 to 815 |
-320 to 1500 |
Trim Material
| Seat Insert |
O-ring |
Stem |
Ball |
Seat |
| Code |
Material |
Code |
Material |
Code |
Material |
Code |
Material |
Code |
Material |
| 1 |
PTFE |
1 |
NBR |
1 |
F6a |
1 |
F6a |
1 |
F6a |
| 3 |
PEEK |
2 |
VITON A |
2 |
F304 |
2 |
F304 |
2 |
F304 |
| 5 |
DEVLON V |
3 |
VITON AED |
3 |
A105N/ENP |
3 |
A105N/ENP |
3 |
A105N/ENP |
| 7 |
NYLON 12 |
4 |
VITON B |
4 |
17-4PH |
4 |
17-4PH |
4 |
17-4PH |
| 8 |
PCTFE |
6 |
HNBR |
5 |
AISI 4140/ENP |
5 |
AISI 4140/ENP |
5 |
AISI 4140/ENP |
| L |
Lipseal |
8 |
VITON GLT |
6 |
F316 |
6 |
F316 |
6 |
F316 |
| L |
HNBR |
V |
FEPM |
7 |
F304L |
7 |
F304L |
7 |
F304L |
| J |
VITON |
L |
Lipseal |
8 |
F316L |
8 |
F316L |
8 |
F316L |
| |
|
|
|
9 |
LF2/ENP |
9 |
LF2/ENP |
9 |
LF2/ENP |
| |
|
|
|
A |
F51 |
A |
F51 |
A |
F51 |
