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Cylindrical 304 stainless steel pipe cap with internal FNPT threads, brushed metallic finish

Value Brand

Value Brand 2" FNPT 304 SS Cap

SKU CH-Q3HD-EJA9R

A 304 stainless steel pipe cap with 2-inch FNPT threads rated for 3000 psi at 100 degrees F and 2500 psi steam at 350 degrees F, conforming to ASTM A182 and ASME B16.11 standards

  • 3000 psi rating at 100 °F handles demanding pressure systems
  • 2500 psi steam capacity at 350 °F suits high-temperature lines
  • 304 stainless steel construction resists corrosion in harsh environments
  • FNPT threads to ANSI/ASME B 1.20.1 ensure leak-tight sealing
  • Meets ASTM A 182 and ASME B 16.11 for code compliance

Industrial piping cap

This 2 inch FNPT cap is made from 304 stainless steel and rated for Class 3000 service. It threads onto female NPT connections to seal pipe ends in fluid or steam systems. The fitting conforms to ASTM A 182 material standards and ANSI ASME B 1.20.1 thread specifications. It meets ASME B 16.11 dimensional requirements for forged fittings.

Pressure and temperature limits

The cap withstands 3000 psi at 100 degrees F for general pressure duty. Steam service is rated at 2500 psi at 350 degrees F. These limits cover typical industrial water, oil, air and saturated steam lines. No moving parts means silent operation and zero power draw.

Replaces damaged or missing threaded caps

Use this when a 2 inch FNPT port needs permanent or temporary closure during maintenance, testing or system reconfiguration. The 304 stainless construction resists corrosion better than carbon steel in many chemical environments. It is not suited for systems exceeding the stated pressure or temperature ratings or for non NPT thread forms.

Highlights

  • 3000 psi rating at 100 °F handles demanding pressure systems
  • 2500 psi steam capacity at 350 °F suits high-temperature lines
  • 304 stainless steel construction resists corrosion in harsh environments
  • FNPT threads to ANSI/ASME B 1.20.1 ensure leak-tight sealing
  • Meets ASTM A 182 and ASME B 16.11 for code compliance

Specifications

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Questions about this item

How do I install the 2" FNPT 304 SS Cap and which step is often done incorrectly?

Wrap the male threads with PTFE tape or pipe dope, then thread the cap on by hand before tightening with a wrench. The common mistake is over-tightening past the point where the threads seal, which can crack the fitting or strip the ANSI/ASME B 1.20.1 threads.

What maintenance or replacement will this 304 stainless steel cap need over time?

Inspect the FNPT threads and sealing surface periodically for corrosion, mineral buildup, or mechanical damage. Replace the cap if the threads no longer seal to the ANSI/ASME B 1.20.1 standard or if the 304 stainless body shows pitting or cracking from chemical exposure.

What is the first limit reached when this Class 3000 cap is under sustained pressure and temperature?

The steam pressure rating of 2500 psi at 350 degrees F is the first limit encountered in high-temperature service, which is lower than the 3000 psi water, oil, or gas rating at 100 degrees F. Both limits conform to ASME B 16.11 and ASTM-A-182 material standards.

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