High-quality Torispherical Pipe Caps For Boilers And Petrochemical Systems
A din 28011 pipe cap is a standard for a one-piece, torispherical pipe end closure designed for butt welding, suitable for use with pipes of external diameter (da) up to 4000 mm and nominal wall thickness (s) up to 50 mm.
High-quality Torispherical Pipe Caps For Boilers And Petrochemical Systems
A din 28011 pipe cap is a standard for a one-piece, torispherical pipe end closure designed for butt welding, suitable for use with pipes of external diameter (da) up to 4000 mm and nominal wall thickness (s) up to 50 mm. these caps are used to seal the end of a pipe in applications like pressure vessels and piping systems, often made from stainless steel.
A DIN 28011 pipe cap, also known as a torispherical dished end, is a crucial component for sealing the ends of pipes and pressure vessels. Our high-quality DIN 28011 heads are manufactured to strict dimensional and material specifications, ensuring exceptional performance and reliability in demanding industrial applications.
These durable pipe end caps are available in both seamless and welded options, accommodating a wide range of operational requirements. The seamless construction provides added strength and integrity, while the welded versions offer flexibility for custom manufacturing. We supply DIN 28011 heads in various materials, including stainless steel (e.g., 304, 316L) and carbon steel, for optimal resistance to corrosion and high pressure.
Our DIN 28011 fittings are designed for butt-welding connections, creating a secure, leak-tight seal for permanent installations. They are commonly used in the oil and gas, petrochemical, shipbuilding, heat exchanger, and pulp and paper industries.
DIN 28011 pipe caps are torispherical heads designed to seal pipe ends or serve as pressure vessel heads, providing robust protection against environmental exposure, debris, and pressure loss. These caps are critical for boiler pipeline protection and corrosion resistance in industries such as power generation, petrochemical, and chemical processing.
Conforming to DIN 28011 standards, these pipe caps are suitable for seamless or welded heads with an external diameter (Da) ≤4000 mm and wall thickness (s) ≤50 mm. They are typically made from carbon steel (e.g., P235GH, P265GH), stainless steel (e.g., 1.4571, 1.4541), or copper-nickel alloys, ensuring durability and corrosion resistance. Protective coatings like Fusion Bonded Epoxy (FBE), zinc galvanization, or 3LPE enhance performance in harsh environments.
DIN 28011 pipe caps undergo rigorous testing, including chemical analysis (e.g., carbon steel: C ≤0.3%, Mn 0.29-1.06%), tensile testing (yield strength ≥235 MPa, tensile strength ≥415 MPa for P235GH), hydrostatic testing (up to 9.8 MPa), and nondestructive methods (radiographic, ultrasonic, PMI). With a density of ~7.85 g/cm³ for carbon steel and suitability for temperatures up to 425°C, these caps excel in high-pressure piping systems like boilers, heat exchangers, and refinery pipelines.
The torispherical design (r1 = Da, r2 = 0.1 * Da, h2 = 0.1935 * Da - 0.455 * s) ensures optimal stress distribution and leak-free sealing, making DIN 28011 pipe caps ideal for pipeline termination and pressure vessel applications. They address challenges like pipeline corrosion, mechanical stress, and pressure containment in demanding industrial settings.
Stainless steel End cap
DIN 28011 is a German industrial standard for torispherical dished ends, also known as heads, which are used to close off pipes and pressure vessels.
The standard provides specifications for the dimensions, geometry, and design of these one-piece heads, which can be made with or without a welding seam.
DIN 28011 heads are suitable for high-demand industrial applications where a strong, secure closure is required for pressurized systems.
| Dimensions (d1 × s) mm | Height (L) mm | Weight kg |
|---|---|---|
| 21.3 × 2.0 | 9.0 | 0.01 |
| 26.9 × 2.0 | 9.0 | 0.01 |
| 33.7 × 2.0 | 13.0 | 0.02 |
| 42.4 × 2.0 | 13.0 | 0.04 |
| 48.3 × 2.0 | 13.5 | 0.05 |
| 60.3 × 2.0 | 18.5 | 0.07 |
| 76.1 × 2.0 | 20.5 | 0.10 |
| 88.9 × 2.0 | 25.0 | 0.15 |
| 114.3 × 2.0 | 28.0 | 0.26 |
| 114.3 × 3.0 | 29.0 | 0.39 |
| 139.7 × 3.0 | 38.5 | 0.60 |
| 168.3 × 3.0 | 47.5 | 0.90 |
| 219.1 × 3.0 | 63.5 | 1.32 |
| 273.0 × 3.0 | 93.0 | 1.95 |
| 323.9 × 3.0 | 102.0 | 2.70 |
| 355.6 × 3.0 | 109.0 | 3.80 |
| 406.4 × 3.0 | 123.0 | 5.00 |
| 457.2 × 3.0 | 123.0 | 6.10 |
| 508.0 × 3.0 | 133.0 | 7.60 |
| Specification | Details |
|---|---|
| Standards | DIN 28011, EN 10253 Type B (DIN 2617) |
| Type | Torispherical Pipe Cap (Seamless or Welded) |
| Material | Carbon Steel (P235GH, P265GH), Stainless Steel (1.4571, 1.4541), Copper-Nickel |
| External Diameter (Da) | ≤4000 mm |
| Wall Thickness (s) | ≤50 mm |
| Manufacturing | Seamless Forming, Welded Fabrication, Cold Pressing, Hot Forming |
| Coatings | FBE, Zinc Galvanization, 3LPE |
| Testing | Chemical Analysis (C ≤0.3%, Mn 0.29-1.06% for carbon steel), Tensile (YS ≥235 MPa, TS ≥415 MPa for P235GH), Hydrostatic (≥9.8 MPa), Radiographic, Ultrasonic, PMI |
| Operating Conditions | Pressure: ≥9.8 MPa, Temperature: Up to 425°C (carbon steel) |
| Geometry | r1 = Da, r2 = 0.1 * Da, h2 = 0.1935 * Da - 0.455 * s |
FBE, galvanization, or 3LPE coatings protect against harsh environments.
Ensures reliable pipeline and vessel termination.
Torispherical design minimizes stress concentrations.
Reliable up to 425°C for carbon steel.
Seamless integration with carbon/stainless steel systems.
Affordable for industrial applications.
| Feature | DIN 28011 Pipe Cap | ASME SA-234 WPB End Cap | ASTM A403 Stainless Steel End Cap |
|---|---|---|---|
| Material | Carbon Steel (P235GH, P265GH), Stainless Steel (1.4571, 1.4541), Copper-Nickel | Carbon Steel (ASME SA-234 WPB) | Stainless Steel (e.g., WP304, WP316L) |
| Standard | DIN 28011, EN 10253 Type B (DIN 2617) | ASME SA-234, ASME B16.9 | ASTM A403, ASME B16.9 |
| Function | Seals pipe ends, vessel heads | Seals pipe ends | Seals pipe ends |
| Corrosion Resistance | Good (with coatings) | Good (with coatings) | Excellent (inherent) |
| Erosion Resistance | Good (static application) | Good (static application) | Good (static application) |
| Applications | Boilers, petrochemical, chemical processing | Boilers, petrochemical, chemical processing | Chemical, petrochemical, food processing |
| Temperature Range | Up to 425°C (carbon steel) | Up to 425°C | Up to 870°C |
| Cost | Moderate | Moderate | Higher |
| Key Advantage | Torispherical design for stress distribution | Cost-effective pipeline sealing | Superior corrosion resistance |
A curated list of long-tail keywords for DIN 28011 pipe caps, covering standards, materials, and industrial applications.
Note: DIN 28011 pipe caps are engineered for corrosion-resistant, high-pressure pipeline sealing in critical industrial applications. Contact a certified supplier for detailed specifications.
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
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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