End Cap
Reliable Pipe Closure Solutions
End cap, also known as pipe cap, are pipe fittings designed to serve as closures at the ends of a piping system, providing protection and sealing functionality.
Reliable Pipe Closure Solutions
End cap, also known as pipe cap, are pipe fittings designed to serve as closures at the ends of a piping system, providing protection and sealing functionality.
Liquid and gas-tight sealing
Prevents entry of contaminants
Multiple connection options
Maintains piping system integrity
End caps are pipe fittings specifically designed to serve as closures at the ends of a piping system, providing protection and sealing functionality to prevent contamination and maintain system integrity.
A fitting cap is a type of piping fitting that is used to close off the end of a pipe or fitting. It is commonly used in plumbing, HVAC, and industrial applications where the end of a pipe or fitting needs to be sealed or capped.
Fitting caps are available in different sizes and materials, such as carbon steel and stainless steel, depending on the application. They are typically designed to fit over the end of a pipe or fitting and provide a tight, secure seal. Fitting caps can be used in a variety of applications, such as to seal off unused pipes, protect the end of a pipe during shipping or storage, or provide a temporary seal during maintenance or repair work.
The installation of fitting caps requires careful consideration of the pipe size, material, pressure, temperature, and fluid being conveyed to ensure proper fit and performance. In some cases, a threaded fitting cap may be used, which allows for easy installation and removal of the cap without the need for special tools or equipment.
Steel Pipe Cap is usually welded to the pipe end or mounted on the external thread of the pipe end to cover the pipe fittings. To close the pipeline so the function is the same as the pipe plug.
Fit over or are welded onto the end of a pipe, providing a liquid or gas-tight seal for complete system protection.
Commonly made from one steel plate ensuring seamless construction, available in various shapes including hemispherical, oval, and round.
| Specification | Details |
|---|---|
| Standards | ASME SA-234 WPB, ASME B16.9 |
| Type | End Cap (Round, Welded, Seamless) |
| Material | Carbon Steel (ASME SA-234 WPB) |
| Sizes | 1/2" (12.7mm) to 48" (1219mm) Nominal Diameter |
| Wall Thickness | 0.5mm to 50mm |
| Manufacturing | Seamless Forming, Welded Fabrication, Forging |
| Coatings | FBE, Zinc Galvanization, 3LPE |
| Testing | Chemical Analysis (C ≤0.3%, Mn 0.29-1.06%), Tensile (YS ≥240 MPa, TS 415-585 MPa), Hydrostatic (≥9.8 MPa), Radiographic, Ultrasonic, PMI |
| Operating Conditions | Pressure: ≥9.8 MPa, Temperature: Up to 425°C |
| Feature | ASME SA-234 WPB End Cap | ASME SA-234 WPB Eccentric Reducer | ASTM A403 Stainless Steel End Cap |
|---|---|---|---|
| Material | Carbon Steel (ASME SA-234 WPB) | Carbon Steel (ASME SA-234 WPB) | Stainless Steel (e.g., WP304, WP316L) |
| Function | Seals pipe ends | Connects pipes of different diameters | Seals pipe ends |
| Corrosion Resistance | Good (with coatings) | Good (with coatings) | Excellent (inherent material property) |
| Erosion Resistance | Good (static application) | Excellent (minimizes turbulence) | Good (static application) |
| Applications | Pipeline termination, boilers, petrochemical | Horizontal pipelines, boilers, petrochemical | Pipeline termination, chemical, petrochemical |
| Temperature Range | Up to 425°C | Up to 425°C | Up to 870°C |
| Cost | Moderate | Moderate | Higher |
| Key Advantage | Reliable pipeline sealing | Prevents air/liquid trapping | Superior corrosion resistance |
Standards: ASME B16.9 and ASME B16.25
Description: Designed for butt welding to pipe end, providing permanent and strong connection.
Standards: ASME B16.11
Description: Fit into socket of pipe fitting and welded in place.
Thread Types: NPT and BSP configurations
Description: Feature internal or external threads for screwing onto threaded pipe ends.
Features: Flange, slotted head, knurled or faceted head options
Considerations: Length and width dimensions are critical
Design: Dome-shaped for optimal pressure distribution
| Material Type | Standards & Grades | Characteristics | Applications |
|---|---|---|---|
| Carbon Steel | A234 WPB, A420 WPL6 | High strength, cost-effective, general industrial use | Oil & gas, power generation, general industrial |
| Stainless Steel | ASTM A403 WP 304, 304L, 316, 316L, 317, 317L, 321, 310, 904L | Excellent corrosion resistance, hygienic properties | Chemical processing, food & beverage, pharmaceutical |
| Alloy Steel | A234 WP1, WP5, WP9, WP11, WP22, WP91 | Enhanced strength, high-temperature resistance | High-temperature and high-pressure services |
High strength and cost-effective for general industrial applications
General PurposeSuperior corrosion resistance for chemical and food applications
Corrosion ResistantEnhanced properties for high-temperature specialized applications
High Performance| Outside Diameter (mm) | Wall Thickness (mm) | Height (mm) | Weight (kg) |
|---|---|---|---|
| 21.3 | 2.0 | 25.0 | 0.060 |
| 33.7 | 2.6 | 38.0 | 0.110 |
| 60.3 | 2.9 | 38.0 | 0.280 |
| 114.3 | 3.6 | 64.0 | 1.000 |
| 219.0 | 6.3 | 100.0 | 5.550 |
Complete dimension tables available upon request
Prevents entry of dirt, debris, and contaminants into piping systems
Provides reliable sealing for both liquid and gas applications
Suitable for various industries and pipe materials
Various head designs for easy handling and installation
Made from single steel plate for superior integrity
Options for permanent or temporary installation
Pipeline terminations, wellhead applications, refinery piping
Process piping systems, chemical storage and handling
Steam and water systems, cooling circuits, fuel handling
Building services piping, HVAC systems, fire protection
Ship piping systems, offshore installations, marine equipment
Hygienic piping systems, processing equipment, sterile systems
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