Pipe and piping fittings

Cap

Closing a line end or providing positive isolation

Specialist selection guide

What should be reviewed before selecting this product?

Cap belongs to the Threaded and galvanized fittings family. Technical selection must start from actual service conditions, followed by verification of dimensions, pressure-temperature duty, material, connection, construction standard, testing and manufacturer documentation against the project piping class.

Technical selection path

  1. 1

    Extract thread standard from the project specification and verify it against the manufacturer proposal

  2. 2

    Extract size from the project specification and verify it against the manufacturer proposal

  3. 3

    Extract material and coating from the project specification and verify it against the manufacturer proposal

  4. 4

    Extract working pressure from the project specification and verify it against the manufacturer proposal

  5. 5

    Extract thread sealing method from the project specification and verify it against the manufacturer proposal

Key strengths

  • Selection within the established Threaded and galvanized fittings family
  • Compatibility review across project materials and connections
  • Structured technical comparison before final enquiry

Selection limitations

  • A trade name or product name alone does not define the technical specification
  • Pressure-temperature limits depend on material, design and standard edition
  • Substitution requires dimensional, functional and documentation verification

Typical applications

Where can this option be considered?

  • Evaluation for Oil and gas projects subject to service-condition approval
  • Evaluation for Refining projects subject to service-condition approval
  • Evaluation for Petrochemical projects subject to service-condition approval

Reference standards

A standard does not replace the project specification

Common technical questions

Concise answers before enquiry

What information is required to enquire about Cap?

At minimum provide thread standard, size, material and coating, working pressure, thread sealing method and fluid conditions. Final documentation requirements follow the project specification.

Are two Cap products with the same name interchangeable?

No. Installation dimensions, pressure-temperature rating, wetted materials, connection, test method and material certification must be checked independently.

Primary purpose

Closing a line end or providing positive isolation

Best suited to

Line ends, future tie-ins, testing or maintenance

Selection watchpoint

Trapped pressure, venting, safe removal procedure and wall thickness

Initial review sheet

Technical attributes to review

Final values must come from project specifications, calculations and manufacturer data. This table defines the information scope.

FamilyThreaded and galvanized fittings
Main groupPipe and piping fittings
Materials to evaluateMalleable iron, Galvanized steel, Stainless steel, Brass
Connections to evaluateTaper thread, Parallel thread
Typical mediaWater, Air, Gas, Fire protection
Relevant industriesOil and gas, Refining, Petrochemical, Power generation, Water and utilities
Reference standardsASME B1.20.1 · EN 10242

Enquiry checklist

Include this information with your request

1

Thread standard

2

Size

3

Material and coating

4

Working pressure

5

Thread sealing method

Before substitution

A matching name does not guarantee interchangeability

Installation dimensions, pressure rating, wetted materials, sealing design, construction standard, testing and documentation must be checked independently.

Read technical guides

Adjacent types

Other options in this family

Final technical approval is required

This page is educational and intended for initial screening. Final selection must be approved against project requirements, actual service conditions and manufacturer documentation.

Send request for review