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
Malleable iron reducing coupling with threaded female ends

Anvil

Anvil 0310542402 Trap 1" x 3/4" FNPT Class 300 Schedule 80

SKU CH-01DV-BP5MK MPN 0310542402

A malleable iron reducing coupling with 1 inch and 3/4 inch female NPT threads, rated Class 300 for Schedule 80 pipe at 2,000 psi and 150 degrees Fahrenheit

  • TypeDrain Components
  • MaterialHAWA
  • Malleable iron construction resists corrosion for long service life
  • Class 300 rating handles 2,000 psi at 150°F maximum operating pressure
  • Schedule 80 wall thickness provides extra strength for demanding installations
  • 1" x 3/4" FNPT reducing coupling connects different pipe sizes directly
  • Female threaded ends allow secure, leak-free connections without welding

Anvil Reducing Coupling 1" x 3/4" FNPT

This Anvil reducing coupling connects a one-inch female NPT pipe to a three-quarter-inch female NPT pipe. It is manufactured from malleable iron and rated for Class 300 service. The fitting suits Schedule 80 piping systems in plumbing and industrial applications.

Suits installers joining two female-threaded pipes

Builders who need a straight coupling between identical pipe diameters should select a different fitting. Systems requiring a welded or flanged connection rather than a threaded joint will not use this component. Installations demanding a material other than malleable iron must look elsewhere.

Class 300 pressure rating at 150 Degrees F

The coupling withstands a maximum operating pressure of 2,000 psi at 150 Degrees F. This single rating determines whether the fitting meets the design pressure and temperature of the intended piping system. Verify the system requirements against this figure before purchase.

Highlights

  • Malleable iron construction resists corrosion for long service life
  • Class 300 rating handles 2,000 psi at 150°F maximum operating pressure
  • Schedule 80 wall thickness provides extra strength for demanding installations
  • 1" x 3/4" FNPT reducing coupling connects different pipe sizes directly
  • Female threaded ends allow secure, leak-free connections without welding

Specifications

TypeDrain Components
MaterialHAWA
BrandAnvil
Model0310542402

Questions about this item

How do I install the 1" x 3/4" FNPT reducing coupling, and what step is often done incorrectly?

Apply PTFE tape or pipe sealant to the male threads, then thread the 1" female end and the 3/4" female end onto the corresponding pipes. The step often missed is tightening both ends to the correct torque so the Class 300 rating holds at 2,000 psi.

What maintenance or replacement will the malleable iron trap need later?

Inspect the threads and sealing surfaces periodically for corrosion or mineral buildup. Replace the coupling if the Schedule 80 wall shows pitting, cracking, or if leaks appear at either FNPT connection.

What limit appears first under sustained use at the 2,000 psi rating?

The maximum operating temperature of 150 degrees F is the first limit; exceeding it reduces the pressure capacity of the Class 300 malleable iron body.

Also in this aisle

People compared these

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