2 inch Black Iron Cap

$4.61
- +
In stock
5 Available At My Branch
71 Available At All US Supply Locations
Brand
Brand May Vary
Part Number
521-408
SKU
7709

2" Black Iron Cap – Engineered for Professional-Grade Sealing

Precision-machined and built for high-demand installations, the 2" Black Iron Cap offers secure closure and reliable containment for piping systems. Designed for compatibility with standard threaded black iron pipe, this fitting ensures optimal integrity in high-pressure environments common to commercial and industrial jobsites.

Constructed from durable black malleable iron, this cap is an ideal solution for terminating pipe runs in water, steam, or gas systems. Its rugged profile and tight-thread engagement make it a reliable option for contractors who prioritize safety, code compliance, and long-term performance.

Contractor-Focused Advantages

  • High-Tolerance Threads Machined for secure, leak-resistant fit in pressure-rated assemblies.
  • Rugged Construction Withstands mechanical stress and thermal cycling in demanding environments.
  • Versatile Use Suitable for capping unused outlets in gas distribution, hydronic heat, and sealed fluid systems.
  • Corrosion-Resistant Surface Standard black finish enhances resistance in indoor and sheltered installations.

Operational Benefits for Jobsite Performance

  • Prevents System Contamination Effectively seals open ends during system testing or staging phases.
  • Minimizes Downtime Reliable sealing reduces the need for rework or follow-up service visits.
  • Streamlines Compliance Meets typical plumbing and mechanical standards for gas and water systems.
  • Simple Integration Easily integrates into existing assemblies with standard pipe tools.

Installation Overview

Designed for straightforward installation, this cap threads onto standard 2" black iron pipe using a pipe wrench and appropriate thread sealant or compound. For best results, ensure threads are clean and aligned prior to torque application. Final torque values should reflect project-specific code and pressure system requirements.

Application Environments

Commonly installed across commercial, industrial, and residential systems, this black iron cap is used to terminate sections in natural gas lines, boiler systems, fire protection zones, and low-pressure steam lines. It is a preferred choice where safety, closure integrity, and system longevity are critical.

Technical Insight

Malleable iron provides excellent ductility and shock resistance, making it a dependable material for threaded fittings in mechanical systems. When properly installed, black iron caps help maintain system integrity during static pressure or idle phases of operation.

Professionals depend on precision fittings to complete code-compliant, high-performance systems. The 2" Black Iron Cap delivers the mechanical strength, reliability, and sealing integrity that experienced contractors require in the field.

Specifications

Specifications
Weight 0.860000
Brand Brand May Vary
Height 1.45
Length 2.85
Width 2.85
Finish Black
Side A 2"
Fitting Type Cap
Item Type Caps
MPN 521-408
Material Black Iron
Product Family Fittings
Item Returns This item can be returned
Features