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3 inch red brass pipe nipple threaded both ends

Zoro Select

Zoro Select 3" MNPT x 8" TBE Red Brass Nipple Sch 40

SKU CH-YA7F-NQF7X

Red brass pipe nipple with 3 inch MNPT threads and 8 inch length for air, natural gas, oil, potable water and steam systems

  • ColorTransparent
  • Red brass construction resists corrosion in potable water and steam systems
  • Seamless pipe rated 144 psi at 450 °F for high-temperature service
  • 3 inch MNPT threads connect directly to Class 150 fittings
  • 8 inch overall length suits standard plumbing layouts
  • Complies with ASTM B43 material grade for reliable performance

3" MNPT x 8" TBE Red Brass Nipple

This 3-inch nominal pipe size nipple connects male NPT threads to plain TBE ends. Red brass construction meets ASTM B43 grade for seamless pipe quality. The 8-inch overall length suits standard plumbing runs in commercial and residential systems. Rated for 144 psi at 450 degrees F maximum operating pressure and temperature.

Installers handling air, natural gas, oil.

Suited for Class 150 fitting compatibility across listed fluid services. Not intended for gravity flow installations or systems exceeding 576 psi steam pressure at 300 degrees F. Operates between -20 and 400 degrees F. Buyers needing different thread types, lengths or pressure classes should select alternative fittings.

ASTM B43 seamless red brass material grade

This specification confirms the nipple is drawn seamless from red brass alloy rather than welded or cast. The grade governs corrosion resistance and mechanical strength for the stated pressure and temperature limits. Verification of this grade against project specifications determines whether the part is approved for installation.

Highlights

  • Red brass construction resists corrosion in potable water and steam systems
  • Seamless pipe rated 144 psi at 450 °F for high-temperature service
  • 3 inch MNPT threads connect directly to Class 150 fittings
  • 8 inch overall length suits standard plumbing layouts
  • Complies with ASTM B43 material grade for reliable performance

Specifications

ColorTransparent
BrandZORO SELECT

Questions about this item

What pressure does the 3" MNPT thread handle at 450 °F?

The nipple is rated for 144 psi at 450 °F maximum operating temperature.

What clearance does the 3 1/2" outside diameter need through a wall or floor?

Allow at least a 3 1/2" hole plus thread engagement depth for the 3" nominal pipe size.

How do I seal the tapered MNPT threads without cracking the brass?

Apply PTFE tape or pipe dope on male threads only, hand-tighten, then turn one to two full turns with a wrench — over-tightening splits the fitting.

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