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Stainless steel pipe coupling with threaded female ends

Value Brand

Value Brand 1" FNPT 316 SS Coupling Class 3000

SKU CH-D5HB-E8N8H

A stainless steel 316 coupling with female NPT threads rated for Class 3000 service

  • 1" FNPT threads connect pipe securely
  • 316 stainless steel resists corrosion in harsh environments
  • Class 3000 rating handles high-pressure applications
  • Zoro Select brand ensures consistent manufacturing quality
  • Proposition 65 notice informs of regulated chemical content

Product Identity

Value Brand 1" FNPT 316 SS Coupling Class 3000 is a stainless steel pipe fitting designed for industrial and commercial plumbing systems. It connects two sections of 1 inch NPT threaded pipe using female threads on both ends. The 316 grade stainless steel construction provides corrosion resistance for demanding fluid handling applications.

Intended Use && Limitations

This coupling suits installers joining 1 inch NPT threaded pipes in corrosive environments requiring Class 3000 pressure rating. It is not for buyers needing different thread sizes, alternative materials such as brass or carbon steel, or fittings with mixed connection types like male-to-female transitions. Systems requiring welded or flanged connections should use appropriate alternative components.

Deciding Specification

The critical specification is the 1 inch Female NPT thread size on both ends combined with 316 stainless steel material and Class 3000 pressure rating. These three factors together determine compatibility with existing piping systems and suitability for the intended service conditions.

Highlights

  • 1" FNPT threads connect pipe securely
  • 316 stainless steel resists corrosion in harsh environments
  • Class 3000 rating handles high-pressure applications
  • Zoro Select brand ensures consistent manufacturing quality
  • Proposition 65 notice informs of regulated chemical content

Specifications

BrandZoro Select

Questions about this item

How do I install the 1 in FNPT 316 SS coupling without cross-threading the 11 1/2 threads?

Start the coupling by hand for several turns to ensure the 11 1/2 NPT threads engage squarely, then tighten with a wrench; forcing it with a tool from the start is the step that causes cross-threading on the 316 stainless threads.

What maintenance or replacement will the 316 SS Class 3000 coupling need later?

Inspect the 316 stainless threads and sealing faces periodically for corrosion, galling or deformation; replace the coupling if the 11 1/2 NPT threads show wear that prevents a leak-free seal.

What limit appears first on the 1 in FNPT coupling under sustained pressure at Class 3000 rating?

The 316 stainless material will reach its pressure-temperature limit before the 11 1/2 NPT thread engagement fails, so monitor system temperature to stay within the Class 3000 design envelope.

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