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Hexagonal stainless steel reducing coupling with threaded ends

Value Brand

Value Brand 2 in x 3/4 in 316 Stainless Steel Hex Reducing Coupling

SKU CH-MWY8-AHXF8

Connects 2" male NPT to 3/4" female NPT with 316 stainless steel hex reducing coupling rated 300 psi

  • 316 stainless steel resists corrosion and high temperatures
  • Hexagonal 62.5 mm flats allow secure wrench tightening
  • MNPT x FNPT threads connect 2 in male to 3/4 in female
  • Class 150 rating handles 300 psi operating and 150 psi steam pressure
  • Low-lead compliant for potable water systems

Pipe Size Reduction

This 316 stainless steel hex reducing coupling connects a 2 inch male NPT threaded opening to a 3/4 inch female NPT threaded connection. It is intended for installers who need to step down pipe diameter in a single fitting while maintaining a corrosion-resistant joint. The hexagonal profile allows tightening with a standard wrench for a secure, leak-resistant seal.

Pressure Class 150 Limits

The fitting is rated for a maximum operating pressure of 300 psi and a maximum steam pressure of 150 psi under MSS-SP-114 Class 150 standards. Threads conform to ANSI B1.20.1 for compatibility with standard NPT piping systems. It is designed to mate with Schedule 40 pipe and requires separate thread sealant during installation.

Corrosion Resistance and Potable Use

Constructed from 316 stainless steel, the coupling resists corrosion and handles elevated temperatures in aggressive fluid environments. Low-lead compliance makes it suitable for potable water systems meeting ASTM-A-351 material specifications. The 35.5 mm overall length and 62.5 mm wrench flats provide adequate engagement for most standard piping assemblies.

How it compares

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

Price $15.99
Cheaper than about 55% of the 2,955 comparable items (median $17.99).

Specifications

Product
Brand nameZORO SELECT

Questions about this item

Should I choose the 2 in x 3/4 in size or a different reducing coupling?

Select this coupling when you need to join a 2 inch male NPT pipe or fitting to a 3/4 inch female NPT port; the hex flats measure 62.5 mm and overall length is 35.5 mm.

What does the 300 psi rating mean once the fitting is installed?

It is the maximum continuous operating pressure the joint can hold in service; steam duty is limited to 150 psi, both under MSS-SP-114 Class 150.

How do the MNPT x FNPT threads and ANSI B1.20.1 standard affect compatibility?

The threads follow ANSI B1.20.1 taper dimensions, so they seal with standard NPT pipe and fittings; the connection caps at the Class 150 pressure limit of 300 psi.

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