Stainless Steel Pipe Cap
What is Stainless Steel Pipe Cap?
Stainless Steel Pipe Cap is a type of pipe fitting used to cover the ends of pipes to stop the flow of fluids, gases, or other substances. These caps are primarily utilized in industries where cleanliness, longevity, and corrosion resistance are critical. They are available in various shapes and sizes, designed to fit different pipe diameters and requirements.
Types of Stainless Steel Pipe Caps
Stainless Steel Butt Weld Cap
Threaded Pipe Caps
Socket Weld Caps
Stainless Steel Pipe Cap Dimensions
SS End Cap Dimension Chart (in lbs)
| Inch. | MM | Height | |
|---|---|---|---|
| D | E | ||
| 1/2 | 15 | 21,34 | 25,40 |
| 3/4 | 20 | 26,67 | 31,75 |
| 25 | 33,40 | 38,10 | |
| 1 1/4 | 32 | 42,16 | 38,10 |
| 1 1/2 | 40 | 48,26 | 38,10 |
| 2 | 50 | 60,32 | 38,10 |
| 2 1/2 | 65 | 73,02 | 38,10 |
| 3 | 80 | 88,90 | 50,80 |
| 3 1/2 | 90 | 101,60 | 63,50 |
| 4 | 100 | 114,30 | 63,50 |
| 5 | 125 | 141,30 | 76,20 |
| 6 | 150 | 168,27 | 88,90 |
| 8 | 200 | 219,07 | 101,60 |
| 10 | 250 | 273,05 | 127,00 |
| 12 | 300 | 323,85 | 152,40 |
| 14 | 350 | 355,60 | 165,10 |
| 16 | 400 | 406,40 | 177,80 |
| 18 | 450 | 457,20 | 203,20 |
| 20 | 500 | 508,00 | 228,60 |
| 22 | 550 | 558,80 | 254,00 |
| 24 | 600 | 609,60 | 266,70 |
| 28 | 700 | 711,20 | 266,70 |
SS Stub End Dimensions Chart (in lbs)
| NOMINAL PIPE SIZE | LAP DIAMETER | OUTSIDE DIAMETER | LONG PATTERN LENGTH | SHORT PATTERN LENGTH | RADIUS | |
|---|---|---|---|---|---|---|
| Inch. | A | OD Min | OD Max | L | L | R |
| 1/2 | 35 | 22.8 | 20.5 | 76 | 51 | 3 |
| 3/4 | 43 | 28.1 | 25.9 | 76 | 51 | 3 |
| 1 | 51 | 35 | 32.6 | 102 | 51 | 3 |
| 1 1/4 | 64 | 43.6 | 41.4 | 102 | 51 | 5 |
| 1 1/2 | 73 | 49.9 | 47.5 | 102 | 51 | 6 |
| 2 | 92 | 62.4 | 59.5 | 152 | 64 | 8 |
| 2 1/2 | 105 | 75.3 | 72.2 | 152 | 64 | 8 |
| 3 | 127 | 91.3 | 88.1 | 152 | 64 | 10 |
| 3 1/2 | 140 | 104 | 100.8 | 152 | 76 | 10 |
| 4 | 157 | 116.7 | 113.5 | 152 | 76 | 11 |
| 5 | 186 | 144.3 | 140.5 | 203 | 76 | 11 |
| 6 | 216 | 171.3 | 167.5 | 203 | 89 | 13 |
| 8 | 270 | 222.1 | 218.3 | 203 | 102 | 13 |
| 10 | 324 | 277.2 | 272.3 | 254 | 127 | 13 |
| 12 | 381 | 328 | 323.1 | 254 | 152 | 13 |
| 14 | 413 | 359.9 | 354.8 | 305 | 152 | 13 |
| 16 | 470 | 411 | 405.6 | 305 | 152 | 13 |
| 18 | 533 | 462 | 456 | 305 | 152 | 13 |
| 20 | 584 | 514 | 507 | 305 | 152 | 13 |
| 22 | 641 | 565 | 558 | 305 | 152 | 13 |
| 24 | 692 | 616 | 609 | 305 | 152 | 13 |
Stainless Steel Pipe Cap Weight
End Cap Weight Chart (in lbs)
| Nominal Pipe Size (NPS) | Schedule 40 (lbs) | Schedule 80 (lbs) | Schedule 160 (lbs) |
|---|---|---|---|
| 1/2″ | 0.16 | 0.23 | 0.30 |
| 3/4″ | 0.23 | 0.32 | 0.42 |
| 1″ | 0.30 | 0.45 | 0.60 |
| 1 1/4″ | 0.40 | 0.60 | 0.80 |
| 1 1/2″ | 0.50 | 0.75 | 1.00 |
| 2″ | 0.70 | 1.05 | 1.40 |
| 2 1/2″ | 1.05 | 1.60 | 2.10 |
| 3″ | 1.40 | 2.10 | 2.80 |
| 4″ | 2.00 | 3.00 | 4.00 |
| 5″ | 2.70 | 4.00 | 5.30 |
| 6″ | 3.50 | 5.20 | 7.00 |
| 8″ | 5.00 | 7.50 | 10.00 |
| 10″ | 7.50 | 11.20 | 14.90 |
| 12″ | 10.00 | 15.00 | 20.00 |
| 14″ | 12.50 | 18.70 | 25.00 |
| 16″ | 15.50 | 23.30 | 31.00 |
| 18″ | 19.00 | 28.50 | 38.00 |
| 20″ | 23.00 | 34.50 | 46.00 |
| 24″ | 30.00 | 45.00 | 60.00 |
| 28″ | 37.50 | 56.00 | 75.00 |
Stub End Dimensions Chart (in inches)
| Nominal Pipe Size (NPS) | D1 (Outside Diameter) | D2 (Diameter of Stub End) | L (Length) | B (Flange Thickness) |
|---|---|---|---|---|
| 1/2″ | 0.840 | 0.625 | 1.38 | 0.125 |
| 3/4″ | 1.050 | 0.875 | 1.50 | 0.125 |
| 1″ | 1.315 | 1.050 | 1.75 | 0.125 |
| 1 1/4″ | 1.660 | 1.375 | 2.00 | 0.125 |
| 1 1/2″ | 1.900 | 1.500 | 2.25 | 0.125 |
| 2″ | 2.375 | 2.000 | 2.50 | 0.125 |
| 2 1/2″ | 2.875 | 2.500 | 2.75 | 0.125 |
| 3″ | 3.500 | 3.000 | 3.00 | 0.125 |
| 4″ | 4.500 | 3.500 | 3.50 | 0.125 |
| 5″ | 5.563 | 4.500 | 4.00 | 0.125 |
| 6″ | 6.625 | 5.500 | 4.50 | 0.125 |
| 8″ | 8.625 | 7.000 | 5.00 | 0.125 |
| 10″ | 10.750 | 8.625 | 5.50 | 0.125 |
| 12″ | 12.750 | 10.750 | 6.00 | 0.125 |
| 14″ | 14.000 | 12.750 | 6.50 | 0.125 |
| 16″ | 16.000 | 14.000 | 7.00 | 0.125 |
| 18″ | 18.000 | 16.000 | 7.50 | 0.125 |
| 20″ | 20.000 | 18.000 | 8.00 | 0.125 |
| 24″ | 24.000 | 22.000 | 8.50 | 0.125 |
| 28″ | 28.000 | 26.000 | 9.00 | 0.125 |
Stainless Steel Pipe Cap Tolerance
SS Cap Tolerance
| Parameter | Tolerance |
|---|---|
| Outside Diameter (OD) | ±1% of nominal OD or ±0.5 mm, whichever is greater |
| Wall Thickness (WT) | ±12.5% of specified wall thickness |
| Height (H) | ±1.5% of the nominal height or ±3 mm, whichever is greater |
| Out-of-Roundness | ≤1% of the nominal OD |
| End Preparation | ±1 mm for bevel length and ±2° for bevel angle |
| Surface Finish | Free from defects such as cracks, dents, or visible seams |
| Marking Tolerance | Legible and durable markings in accordance with ASME, ANSI, or applicable standards |
Manufacturing Process
Material Selection : High-quality stainless steel, such as 304, 316, or duplex grades, is selected based on the application requirements.
Cutting and Shaping: Stainless steel sheets or rods are cut to the required dimensions using advanced machinery. The material is shaped into the desired cap design using forming techniques like deep drawing or spinning.
Heat Treatment: Heat treatment processes such as annealing enhance the material’s mechanical properties and corrosion resistance.
Surface Finishing: Surface treatments like polishing, pickling, or electroplating improve the aesthetic and functional properties of the cap.
Quality Inspection: Each cap undergoes stringent quality checks to ensure compliance with industry standards. Tests include dimensional checks, pressure tests, and corrosion resistance evaluations.
Benefits
Corrosion Resistance: Resistant to rust and corrosion, even in harsh environments. Ideal for applications involving exposure to water, chemicals, or extreme temperatures.
Durability: Long-lasting performance reduces maintenance costs. Withstands high-pressure and high-temperature conditions.
Hygienic Properties: Non-porous surface prevents the buildup of contaminants. Meets stringent hygiene standards in industries like food, beverage, and pharmaceuticals.
Aesthetic Appeal: Polished finish enhances the overall appearance of piping systems. Suitable for visible installations where appearance matters.
Versatility Available in various sizes, shapes, and designs to suit diverse applications. Customizable to meet specific project requirements.
Eco-Friendly: Fully recyclable, contributing to sustainable practices. Reduces environmental impact compared to non-recyclable materials.
Application
- Oil and Gas Pipelines
- Water Treatment Plants
- Petrochemical
- Construction
- Pressure Vessels
- Phosphate Mining
