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Cylindrical 304 stainless steel half coupling with female NPT threads on both ends, brushed metallic finish

Value Brand

Value Brand 304 Stainless Steel Half Coupling 1-1/2 in FNPT Class 150

SKU CH-TC6B-WQK91

Stainless steel half coupling with 1-1/2 inch FNPT threads, rated 300 psi and 150 psi steam to Class 150 standards

  • 304 stainless steel resists corrosion in air, gas, water, oil and steam systems
  • Class 150 rating supports 300 psi operating and 150 psi steam pressure
  • FNPT female threads on both ends engage a single pipe end for compact installs
  • Low-lead compliant material meets potable water safety requirements
  • Built to ASTM A351, ANSI B1.20.1 and MSS SP-114 standards

Compact 1-1/2 in FNPT Half Coupling

This 304 stainless steel half coupling accepts a single pipe end through its female NPT threads on both sides. It suits piping systems carrying air, natural gas, non-potable water, oil, potable water or steam within recognised guidelines. The Class 150 rating and low-lead compliance make it appropriate for potable water installations.

Threaded Installation Without Sealant

The fitting engages with 11 threads per inch on each end and measures 27 mm overall length. No pre-applied thread sealant or sealing components are supplied, so installer must provide compatible tape or compound. Correct thread engagement to ANSI B1.20.1 avoids leaks; over-tightening can distort the stainless threads.

Sustained Pressure Performance

Rated for a maximum operating pressure of 300 psi and a maximum steam pressure of 150 psi, the coupling maintains integrity under continuous service. Material conforms to ASTM-A-351 and pressure ratings follow MSS-SP-114 Class 150. It is not intended for pressures beyond these stated limits.

How it compares

Measured against everything we stock in Hose Fittings, Adapters & Clamps, at today’s prices. Recalculated every night.

Price $7.99
Cheaper than about 75% of the 2,955 comparable items (median $17.99).

Specifications

Product
Brand nameZoro Select

Questions about this item

How can I confirm the coupling is sealed correctly after threading it onto 11 threads per inch pipe?

Pressure-test the joint up to 300 psi for air, oil or non-potable water, or 150 psi for steam service; a leak-free hold confirms proper engagement per ANSI B1.20.1 and MSS-SP-114 Class 150 ratings.

What comes with the Zoro Select 40HC111N112 half coupling and what must I supply?

The box contains only the 304 stainless steel half coupling, 27 mm overall length, FNPT both ends; you must provide pipe thread sealant or tape and the mating pipe nipples.

When should I choose the Class 150, 1-1/2 in FNPT version over another pressure class?

Select this Class 150 coupling when your system design pressure is 300 psi maximum operating or 150 psi steam, matching the ASTM-A-351 304 stainless rating and Low Lead compliance for potable water.

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