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Brass coupling, 3/4 inch female NPT, Class 150, pack of 5

Value Brand

Value Brand Brass Coupling 3/4 in Female NPT Class 150

SKU CH-8WCM-7GC48

A brass coupling joins two 3/4 inch female NPT threads at Class 150 pressure rating

  • TypeOther
  • Brass construction resists corrosion for long plumbing life
  • Class 150 rating handles standard residential water pressure
  • 3/4 inch female NPT threads fit common pipe sizes
  • Pack of 14 couplings covers multiple connection points
  • New Zoro Select quality ensures reliable leak-free seals

Brass Coupling for 3/4 in NPT Piping

This brass coupling joins two sections of 3/4 inch female NPT pipe in residential and light-commercial plumbing systems. The Class 150 rating suits standard water and air lines found in bath and utility installations. Supplied in a pack of five, it covers multiple connection points in a single purchase. The product is new and ready for immediate installation.

Thermal and Pressure Behaviour

Brass construction conducts heat evenly across the joint, so the fitting tracks the temperature of the fluid inside without creating local hot spots. The Class 150 designation indicates the pressure envelope the coupling is designed to contain under normal service conditions. No moving parts or seals are present, so the joint adds no vibration or noise to the pipe run. Power draw is not applicable to this passive component.

Build Quality and Daily Implications

The coupling is machined from brass with female NPT threads on both ends, allowing direct engagement with matching male-threaded pipe or fittings. A Proposition 65 notice applies because the brass alloy contains a chemical listed by the State of California as a potential health concern. Installers should follow local code requirements for thread sealant and torque to ensure a leak-free joint. The five-piece pack simplifies inventory for projects needing several identical connections.

Highlights

  • Brass construction resists corrosion for long plumbing life
  • Class 150 rating handles standard residential water pressure
  • 3/4 inch female NPT threads fit common pipe sizes
  • Pack of 14 couplings covers multiple connection points
  • New Zoro Select quality ensures reliable leak-free seals

Specifications

BrandZORO SELECT
TypeOther

Questions about this item

How do I install the 3/4 in Female NPT coupling without stripping the threads?

Wrap PTFE tape clockwise on the male threads, hand-tighten the coupling, then turn one to two full turns with a wrench; the step most people skip is cleaning both thread sets first so grit does not cut the brass.

What maintenance will the brass Class 150 coupling need over time?

Inspect the joint annually for green corrosion or weeping; if the threads show pitting or the seal drips, replace the coupling — brass does not require lubrication but it cannot be re-sealed once the threads deform.

What limit appears first when the coupling runs at its 150 psi rating continuously?

Sustained pressure at the Class 150 rating causes gradual brass creep, so the joint will begin to weep at the threads before the material fractures or the NPT seal fails catastrophically.

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