不锈钢截止阀是截止阀的一种，对阀体材质要求比较高一般有301、304、316等几个材质选择广泛应用于化工，船舶，医药，食品机械等行业。只适用于全开和全关，不允许作调节和节流。
Design Features
Outside screw and yoke
Bolted bonnet
Welded Seat
Yoke Integrated with Bonnet
Loose Disc
Rising stem and non-rising hand-wheel
Applicable Standards
| • |
Steel valves |
ANSI B16.34 |
| • |
Face to face |
ANSI B16.10 |
| • |
End flanges |
ANSI B16.5 |
| • |
Butt-weld ends |
ANSI B16.25 |
| • |
Inspection and test |
API 598 |
Main Materials
| No. Part Name |
Material |
| 1 |
Body |
316 Stainless Steel ASTM A351 CF8M |
| 2 |
Disc |
316 Stainless Steel ASTM A351 CF8M |
| 3 |
Disc Cover |
316 Stainless Steel ASTM A351 CF8M |
| 4 |
Stem |
316 Stainless Steel |
| 5 |
Gasket |
PTFE (Grafoil + 316 Sheet*) |
| 6 |
Bonnet |
CF8M |
| 7 |
Gland Packing |
PTFE (Graphite*) |
| 8 |
Bonnet Bolt |
304 Stainless Steel |
| 9 |
Pin |
304 Stainless Steel |
| 10 |
Gland Sleeve |
PTFE |
| 11 |
Gland |
CF8M |
| 12 |
Nut |
304 Stainless Steel |
| 13 |
Eye Bolt |
304 Stainless Steel |
| 14 |
Yoke Sleeve |
Ductile Iron |
| 15 |
Name Plate |
304 Stainless Steel |
| 16 |
Nut |
304 Stainless Steel |
| 17 |
Hand-wheel |
Ductile Iron |
Dimensions (Inches)
| Size |
A |
B |
C |
D |
E |
F |
G |
H |
I |
Num of Bolt Holes |
| 1/2 |
0.59 |
4.25 |
7.32 |
3.50 |
2.38 |
1.38 |
0.43 |
5.51 |
0.625 |
4 |
| 3/4 |
0.79 |
4.61 |
7.32 |
3.88 |
2.75 |
1.69 |
0.43 |
5.51 |
0.625 |
4 |
| 1 |
0.98 |
5.00 |
8.35 |
4.25 |
3.12 |
2.00 |
0.43 |
5.51 |
0.625 |
4 |
| 1-1/2 |
1.57 |
6.50 |
9.69 |
5.00 |
3.88 |
2.88 |
0.56 |
6.29 |
0.625 |
4 |
| 2 |
1.97 |
7.99 |
9.92 |
6.00 |
4.75 |
3.62 |
0.62 |
7.87 |
0.75 |
4 |
| 2-1/2 |
2.56 |
8.50 |
12.12 |
7.00 |
5.50 |
4.12 |
0.69 |
7.87 |
0.75 |
4 |
| 3 |
3.15 |
9.49 |
12.87 |
7.50 |
6.00 |
5.00 |
0.75 |
9.84 |
0.75 |
4 |
| 4 |
3.94 |
11.50 |
15.12 |
9.00 |
7.50 |
6.19 |
0.94 |
9.84 |
0.75 |
8 |
| 6 |
5.91 |
15.98 |
21.53 |
11.00 |
9.50 |
8.50 |
1.00 |
13.78 |
0.875 |
8 |
| 8 |
7.87 |
19.49 |
26.34 |
13.50 |
11.75 |
10.62 |
1.12 |
13.78 |
0.875 |
8 |
| 10 |
9.84 |
24.49 |
32.44 |
16.00 |
14.25 |
12.75 |
1.19 |
19.69 |
1.00 |
12 |
| 12 |
12.00 |
27.50 |
31.30 |
19.00 |
17.00 |
15.00 |
1.25 |
18.11 |
1.00 |
12 |
| 14 |
13.27 |
15.00 |
33.50 |
21.00 |
18.75 |
16.25 |
1.38 |
18.11 |
1.125 |
12 |
| 16 |
15.24 |
16.00 |
35.12 |
23.50 |
21.25 |
18.25 |
1.44 |
18.11 |
1.125 |
16 |
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