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Brass ball valve with black and green handle

Milwaukee Valve

Milwaukee Valve BA-475BLL 1-1/2" FNPT Brass Ball Valve

SKU CH-1NY1-W6ZMC

A 1-1/2" FNPT full-port brass ball valve rated for 600 psi with a locking handle

  • TypeOther
  • Full-port design allows unrestricted flow
  • Chrome-plated brass ball resists corrosion
  • Locking handle prevents accidental operation
  • Brass body rated for 600 psi pressure
  • Vacuum service rated to 29.92 in Hg

Valve Purpose & User Fit

The Milwaukee Valve BA-475BLL is a 1-1/2" FNPT brass ball valve built for manual on-off control of water or combustible gases. It suits plumbers, maintenance crews and facility managers who need a reliable inline shut-off for residential or light-commercial piping systems. The full-port design maintains flow without restriction when the valve is open. A locking handle prevents accidental operation during service or safety lock-out procedures.

Upgrade Path & When to Switch

This valve replaces older gate valves, globe valves or non-locking ball valves that leak, seize or lack a positive lock-out feature. The jump is worth it when a system demands full-bore flow, 600 psi pressure rating and a handle that can be padlocked in the open or closed position. It also fits applications requiring vacuum service down to 29.92 in Hg where legacy valves cannot hold a seal. The two-piece brass body simplifies in-line maintenance compared with single-piece designs.

Pre-Order Compatibility Check

Verify that the piping uses 1-1/2" FNPT threads and that the media temperature and chemistry are compatible with brass and chrome-plated brass internals. Confirm the system pressure does not exceed 600 psi and that no steam service is intended, as steam pressure is not rated. Ensure there is enough straight-run clearance to operate the locking handle and that local codes accept a valve without 3-A sanitary certification. Check that the valve orientation matches the straight body style required by the layout.

Highlights

  • Full-port design allows unrestricted flow
  • Chrome-plated brass ball resists corrosion
  • Locking handle prevents accidental operation
  • Brass body rated for 600 psi pressure
  • Vacuum service rated to 29.92 in Hg

Specifications

BrandMILWAUKEE VALVE
TypeOther

Questions about this item

What pipe size does the 1-1/2" FNPT brass ball valve connect to?

The valve has 1-1/2 inch female NPT threads on each end, so it threads directly onto matching male NPT pipe or fittings.

How is the BA-475BLL installed and what step is often missed?

Apply PTFE tape or pipe dope to the male threads, tighten the valve onto the pipe using a wrench on the hex flats, then operate the handle once to confirm the ball turns freely before pressurising the line.

What maintenance will the chrome-plated brass ball and PTFE seats need later?

Cycle the locking handle fully open and closed every few months to prevent seat adhesion, and inspect the stem packing for weeping if the valve sees frequent 600 psi water or gas service.

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