We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Hexagonal malleable iron reducer coupling, dark metal finish

Value Brand

Value Brand 3/4 x 1/2 Malleable Iron Reducer Coupling

SKU CH-DR75-NYY3N

Malleable iron reducer coupling joins 3/4 in and 1/2 in FNPT pipes at up to 300 psi and 366 °F

  • Connects 3/4 in to 1/2 in pipe with FNPT threads
  • Malleable iron construction meets ASME B 16.3 and B 16.4 standards
  • FM Approved and UL Listed for code-compliant installations
  • Rated 300 psi at 150 °F for reliable pressure handling
  • Operates from -20 °F to 366 °F covering steam and water systems

Value Brand Reducer Coupling 3/4 x 1/2

This malleable iron reducer coupling connects 3/4 inch and 1/2 inch FNPT threaded pipes in plumbing and hydraulic systems. It meets ASME B16.3 and B16.4 standards and carries FM and UL listings. The Class 150 fitting handles saturated steam up to 150 psi and a maximum pressure of 300 psi at 150 degrees Fahrenheit.

Suits Installers Joining Dissimilar Pipe Sizes

Plumbers and maintenance technicians reducing line size from three-quarter to one-half inch will find the correct thread engagement and pressure rating here. It is not for buyers needing a straight coupling, a different thread standard, or a material rated beyond the listed temperature range of minus 20 to 366 degrees Fahrenheit.

Threaded Installation With Standard Tools

The FNPT threads accept pipe wrenches or strap wrenches for assembly without specialised equipment. Applying thread sealant or tape ensures a leak-free joint on the tapered threads. Over-tightening can crack the malleable iron body, so installers should stop when the joint feels snug and pressure-test before final cover-up.

Highlights

  • Connects 3/4 in to 1/2 in pipe with FNPT threads
  • Malleable iron construction meets ASME B 16.3 and B 16.4 standards
  • FM Approved and UL Listed for code-compliant installations
  • Rated 300 psi at 150 °F for reliable pressure handling
  • Operates from -20 °F to 366 °F covering steam and water systems

Specifications

BrandZORO SELECT

Questions about this item

What pipe thread standard does the 3/4 in x 1/2 in FNPT reducer coupling follow?

The coupling uses FNPT threads that conform to ASME B 16.3 and B 16.4 for taper pipe threads.

Will this Class 150 malleable iron fitting handle the pressure of my existing 300 psi compressed air line at 150 °F?

Yes, it is rated for a maximum pressure of 300 psi at 150 °F and 150 psi for saturated steam service.

How can I verify the reducer coupling meets code after installation?

Check for the FM Approved and UL Listed markings on the body and confirm the ASTM A-197 and ASTM A47 material stamps.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.