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Red brass pipe nipple, 1-1/2 inch MNPT, 5 inches long, threaded both ends

Value Brand

Value Brand 1-1/2" MNPT x 5" Red Brass Nipple Sch 40

SKU CH-3BBZ-K9C2V

Red brass pipe nipple with 1-1/2 inch MNPT threads and 5 inch length for air, gas, oil, water or steam systems

  • Handles potable water, air, gas, oil and steam
  • Seamless red brass construction meets ASTM B43 grade
  • Rated 184 psi at 450 °F and 731 psi steam at 300 °F
  • 1-1/2" MNPT threads fit Class 150 fittings
  • Operates from -20 °F to 400 °F

Red Brass Nipple for Air, Gas, Oil, Water, Steam

This 1-1/2 inch MNPT red brass nipple handles air, natural gas, oil, potable water and steam in Class 150 piping systems. Seamless construction meets ASTM B43 grade requirements for reliable service across residential and light commercial installations.

184 psi at 450 °F pressure ceiling

Rated for 184 psi at 450 °F and up to 731 psi saturated steam at 300 °F, it covers most hydronic heating, low-pressure steam and compressed-air lines. Operating range stops at 400 °F continuous and -20 °F minimum, so high-temperature process steam or cryogenic duties fall outside its envelope.

Seamless red brass body

The seamless red brass body resists dezincification and corrosion better than standard yellow brass in potable water. Male NPT threads on each end allow direct connection to female fittings without additional couplings, while the 5 inch overall length provides clearance for wrench engagement in tight mechanical rooms.

How it compares

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

Price $22.99
Pricier than about 58% of the 2,955 comparable items (median $17.99).

Specifications

Product
Brand nameZoro Select

Questions about this item

Will the 1-1/2 inch MNPT threads on this nipple mate with my existing Class 150 brass fittings?

Yes, the nipple is rated for Class 150 compatibility and uses standard 1-1/2 inch MNPT threads that match existing Class 150 brass fittings.

How can I verify the nipple is sealed correctly after threading it into my air or water line?

Pressurise the system up to the 184 psi rating at 450 °F or 731 psi steam at 300 °F and check all joints for leaks; the seamless red brass construction meets ASTM B43.

Does the 5 inch overall length include the threaded portion, and are gaskets or sealant supplied?

The 5 inch length is the overall nipple length including threads; no gaskets or thread sealant are included and must be purchased separately.

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