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Milwaukee Valve

Milwaukee Valve ML232B Butterfly Valve Lug 4 In

SKU CH-5GVG-779FQ

A 4-inch lug-style butterfly valve rated for 200 psi water pressure with a ductile-iron body and Buna-N liner, operating from 10 to 180 °F

  • TypeOther
  • Handles 200 psi water pressure for demanding installations
  • Operates reliably from 10 to 180 degrees Fahrenheit
  • Buna-N liner resists wear in water applications
  • Ductile iron body and disc deliver structural strength
  • Eight bolt holes on 7 1/2 inch circle simplify mounting

Milwaukee Valve ML232B Butterfly Valve

The Milwaukee Valve ML232B is a lug-style butterfly valve built for water-control systems in commercial and industrial plumbing. Its ductile-iron body and disc handle pressures up to 200 psi and temperatures between 10 and 180 degrees Fahrenheit. The eight-hole lug pattern with a 7 1/2-inch bolt circle fits standard 4-inch flanged connections. This component is not suited for gaseous media or services above the rated pressure and temperature limits.

Buna-N liner with lever handle

The Buna-N liner provides a resilient seal compatible with typical potable-water and HVAC circulation duties. A lever handle allows manual quarter-turn operation without the need for actuators or external power. The lug design permits dead-end service and easier removal of downstream piping while the upstream side remains pressurised. No automation accessories or position-indication devices are included with the valve.

200 psi pressure rating and 180 °F ceiling

The valve comfortably handles cold and hot water circuits within the 10 to 180 °F range at full 200 psi working pressure. Above 180 °F the liner material approaches its thermal limit and sealing performance cannot be assured. At pressures exceeding 200 psi the ductile-iron body and disc are not rated for safe operation. The eight-bolt lug pattern distributes load evenly but does not compensate for flange misalignment beyond normal piping tolerances.

Highlights

  • Handles 200 psi water pressure for demanding installations
  • Operates reliably from 10 to 180 degrees Fahrenheit
  • Buna-N liner resists wear in water applications
  • Ductile iron body and disc deliver structural strength
  • Eight bolt holes on 7 1/2 inch circle simplify mounting

Specifications

BrandMILWAUKEE VALVE
TypeOther

Questions about this item

How often should the Buna-N liner be inspected or replaced under normal water service?

The Buna-N liner handles 10 to 180 °F water at up to 200 psi; plan annual visual checks and replace the liner if cracking, hardening or leakage appears.

What pressure or temperature limit will be reached first during continuous operation?

The valve is rated for 200 psi maximum water pressure and a 180 °F upper temperature limit; sustained use at either boundary reduces liner life.

How much heat does the ductile iron body and lever handle radiate when the valve runs all day at 180 °F?

At the 180 °F rated maximum the ductile iron body and lever handle will become hot to the touch; insulate or shield adjacent piping and protect personnel.

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