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
Red brass pipe nipple with threaded ends, 7 inch length

Value Brand

Value Brand 3/4" MNPT x 7" TBE Red Brass Pipe Nipple Sch 40

SKU CH-3D9E-Y4XYD

3/4" MNPT red brass nipple rated 240 psi at 450°F for air, gas, oil, water and steam

  • Red brass construction resists corrosion per ASTM B43 standard
  • Handles 240 psi at 450 °F for steam and hot water lines
  • Seamless design eliminates leak paths in high-pressure systems
  • Rated for air, natural gas, oil, potable water and steam service
  • 3/4 inch NPT threads connect to Class 150 fittings without adapters

3/4" Red Brass Nipple for Class 150 Systems

This 3/4 inch male NPT pipe nipple is manufactured from seamless red brass graded to ASTM B43. It suits plumbing and industrial installations carrying air, natural gas, oil, potable water or steam. The fitting is rated for Class 150 compatibility and operates between -20 and 400 degrees Fahrenheit.

7 Inch Overall Length with 3/4" Bore

The nipple measures 6 1/2 inches overall with a 3/4 inch inside diameter and a 1 3/64 inch outside diameter. These dimensions determine whether the piece aligns with existing pipework and clears surrounding components in the assembly.

Seamless Construction and Prop 65 Notice

Seamless metal construction eliminates weld seams that can leak under pressure cycling. California Proposition 65 warnings apply because the brass contains chemicals identified by the state as causing cancer and reproductive harm.

Highlights

  • Red brass construction resists corrosion per ASTM B43 standard
  • Handles 240 psi at 450 °F for steam and hot water lines
  • Seamless design eliminates leak paths in high-pressure systems
  • Rated for air, natural gas, oil, potable water and steam service
  • 3/4 inch NPT threads connect to Class 150 fittings without adapters

Specifications

BrandZoro Select

Questions about this item

What does the 240 psi at 450 °F rating mean when the nipple is installed in a real system?

It is the maximum continuous pressure the red brass nipple can handle at that temperature, so the system pressure and temperature must stay at or below those limits during operation.

The MNPT threads are Class 150 — what does that cap in practice?

Class 150 defines the thread dimensions and pressure-temperature envelope for the fitting, so the joint is rated for the same 240 psi at 450 °F ceiling as the nipple itself.

What clearance and alignment does the 7-inch TBE nipple need to fit between two female ports?

The nipple has an overall length of 6 1/2 inches and an outside diameter of 1 3/64 inches, so the ports must be spaced to accept that length and have enough room for the 3/4-inch NPT thread engagement on each end.

Also in this aisle

People compared these

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