
Product Introduction
Stainless steel head is a component used to seal openings in pipelines, containers, or other equipment. It is typically made of stainless steel material to ensure its corrosion resistance and high temperature resistance. Stainless steel heads are widely used in industries such as petroleum, chemical, food, and pharmaceuticals, mainly for connecting and sealing pressure vessels, storage tanks, pipelines, etc.
There are various types of stainless steel heads, commonly including:
1. Flat head: flat in shape, mainly used for low-pressure vessels.
2. Hemispherical head: Shaped as a hemisphere, it has good pressure bearing performance and is suitable for high-pressure vessels.
3. Conical head: It has a conical shape and is usually used in situations where the direction of fluid flow needs to be changed.
4. Elliptical head: shaped as an ellipse, suitable for specific pressure and temperature requirements.
The manufacturing process of stainless steel heads usually includes cutting, forming, welding, and inspection processes. Commonly used stainless steel materials include different grades such as 304, 316, 321, etc. When selecting materials, factors such as corrosiveness and temperature of the working environment need to be considered.
When choosing a stainless steel head, attention should be paid to its specifications, pressure rating, material characteristics, etc., to ensure its safety and reliability in specific applications.
Technical parameters
Nominal diameter | End outer diameter | Distance from back face to end face | ||||
DN | NPS | Series A | Series B | E | Ultimate thickness T at length E | E1 |
15 | 1/2 | 21.3 | 18 | 25 | 4.57 | 25 |
20 | 3/4 | 26.9 | 25 | 25 | 3.81 | 25 |
25 | 1 | 33.7 | 32 | 38 | 4.57 | 38 |
32 | 1.1/4 | 42.4 | 38 | 38 | 4.83 | 38 |
40 | 1.1/2 | 48.3 | 45 | 38 | 5.08 | 38 |
50 | 2 | 60.3 | 57 | 38 | 5.59 | 44 |
65 | 2.1/2 | 76.1(73) | 76 | 38 | 7.11 | 51 |
80 | 3 | 88.9 | 89 | 51 | 7.62 | 64 |
90 | 3.1/2 | 101.6 | 64 | 8.13 | 76 | |
100 | 4 | 114.3 | 108 | 64 | 8.64 | 76 |
125 | 5 | 139.7 | 133 | 76 | 9.65 | 89 |
150 | 6 | 168.3 | 159 | 89 | 10.92 | 102 |
200 | 8 | 219.1 | 219 | 102 | 12.7 | 127 |
250 | 10 | 273 | 273 | 127 | 12.7 | 152 |
300 | 12 | 323.9 | 325 | 152 | 12.7 | 178 |
350 | 14 | 355.6 | 377 | 165 | 12.7 | 191 |
400 | 16 | 406.4 | 426 | 178 | 12.7 | 203 |
450 | 18 | 457.2 | 478 | 203 | 12.7 | 229 |
500 | 20 | 508 | 529 | 229 | 12.7 | 254 |
550 | 22 | 559 | 254 | 12.7 | 254 | |
600 | 24 | 610 | 630 | 267 | 12.7 | 305 |
650 | 26 | 660 | 267 | 1 | 1 | |
700 | 28 | 711 | 720 | 267 | 1 | |
750 | 30 | 762 | 267 | 1 | ||
800 | 32 | 813 | 820 | 267 | ||
850 | 34 | 864 | 267 | 1 | ||
900 | 36 | 914 | 920 | 267 | 1 | |
950 | 38 | 965 | 305 | 1 | ||
1000 | 40 | 1016 | 1020 | 305 | ||
1050 | 42 | 1067 | 305 | |||
1100 | 44 | 1118 | 1120 | 343 | ||
1150 | 46 | 1168 | 343 | |||
1200 | 48 | 1220 | 1220 | 343 | ||
Note: Height E is applicable when T does not exceed the value in brackets, otherwise E1 height should be used. |
Keywords

Stainless Steel Threaded Pipe Cap
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