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Caps Fittings

Caps fittings are essential components used to seal the ends of pipes, preventing leaks and protecting the system. Available for all pipe dimensions, they are designed to close off pipelines securely, similar to caps used in vessel construction.

These fittings, typically welded or threaded, provide a reliable closure for piping systems. They are widely used in industries such as oil and gas, construction, and chemical processing, ensuring durability and system integrity.

Caps Fittings

Caps fittings are applied to terminate the end of a pipe, effectively sealing it to prevent the ingress of contaminants or the escape of materials. Available for pipes of all diameters, they are robust components similar to those used in pressure vessel construction. Caps can be welded, threaded, or clamped, offering flexibility for permanent or temporary closures in piping systems.

Key Properties of Caps Fittings

  • Sealing Capability: Effectively closes pipe ends to prevent leaks and contamination.
  • Durability: Designed to withstand high pressure and harsh environments.
  • Versatility: Suitable for all pipe sizes and various connection types.
  • Protection: Safeguards pipe interiors during storage, transport, or system maintenance.

Common Grades and Equivalents

Caps fittings are manufactured to meet industry standards, ensuring compatibility and performance in diverse piping applications.

Grade/Standard Equivalent Application
ANSI B16.9, MSS-SP-43 WPB/WPL6 Oil and gas, power generation
MSS-SP-75 High-strength steel High-pressure systems
DIN2617, DIN28011 Seamless/welded caps Chemical and petrochemical industries

Applications of Caps Fittings

Caps fittings are critical in industries requiring secure pipe closures:

  • Oil and Gas: Seals pipeline ends during maintenance or system expansion.
  • Construction: Protects plumbing and HVAC systems during installation.
  • Chemical Processing: Prevents leaks in corrosive fluid systems.
  • Water Treatment: Caps off distribution lines during system modifications.

Specifications

Properties Values
Types Round Caps, End Caps
Material Carbon Steel, Stainless Steel, Alloy Steel
Standards ASME B16.9, MSS-SP-43, MSS-SP-75, DIN2617, DIN28011
Connection Butt-Weld, Threaded, Socket Weld
Size Range 1/2" to 24" (Seamless), up to 48" (Welded)

Considerations for Use

  • Connection Type: Choose welded for permanent seals or threaded for removable caps.
  • Material Compatibility: Select materials to match pipe and fluid properties to prevent corrosion.
  • Pressure Rating: Ensure caps can withstand system pressure to avoid failures.