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Stainless steel reducing coupling with threaded ends

Value Brand

Value Brand 2" x 1/2" FNPT 304 SS Reducing Coupling

SKU CH-3GTC-76YA7

304 stainless steel reducing coupling joins 2-inch and 1/2-inch FNPT pipe at Class 150 pressure ratings

  • 304 stainless steel resists corrosion in demanding plumbing systems
  • Reduces 2 inch to 1/2 inch FNPT for flexible pipe connections
  • Rated 300 psi maximum pressure for reliable service
  • Meets MSS-SP-114 Class 150 pressure ratings for code compliance
  • Threads conform to ASME B1.20.1 for secure, leak-free joints

304 Stainless Reducing Coupling

This 304 stainless steel reducing coupling connects a 2-inch female NPT pipe to a 1/2-inch female NPT pipe. It is rated for 300 psi maximum pressure and 150 psi steam pressure. The fitting meets MSS-SP-114 Class 150 pressure ratings and conforms to ASTM-A-351 material standards.

Replaces mismatched pipe sizes

Use this coupling when transitioning directly from a 2-inch line to a 1/2-inch line without adding separate bushings or reducers. The jump is worth it when a single Class 150 fitting simplifies the assembly and maintains the 300 psi pressure rating across the reduction.

Handles water, oil, and steam within Class 150

The 304 stainless body resists corrosion in general plumbing and light chemical service up to 300 psi. It runs out of headroom above 300 psi working pressure or 150 psi saturated steam, and it is not rated for higher-pressure hydraulic systems.

How it compares

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

Price $11.99
Cheaper than about 65% of the 2,955 comparable items (median $17.99).

Specifications

Product
Brand nameZORO SELECT

Questions about this item

Will the 2 in FNPT threads on this coupling match my existing 2 in NPT pipe?

Yes, the threads conform to ASME B1.20.1 so they will mate with standard 2 in NPT pipe threads.

Do I need pipe tape or thread sealant when installing this 304 stainless steel reducing coupling?

Apply PTFE tape or pipe sealant on the male threads only; over-tightening past finger-tight plus one to two turns can crack the Class 150 fitting.

How often should I inspect or replace this Class 150 coupling in a 300 psi water system?

Inspect annually for leaks or corrosion; replace if threads show deformation or if the fitting sees pressures above the 300 psi rating.

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