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Brass boiler drain valve with tee handle and male NPT inlet

Watts

Watts BD-QT 1/2 in Boiler Drain Valve Brass

SKU CH-N568-G8M8K

A 1/2 in MNPT brass boiler drain valve with a 3/4 in MGHT outlet, tee handle, 200 psi rating and 250 °F maximum temperature

  • TypeOther
  • 1/2 in MNPT inlet connects directly to standard piping
  • 3/4 in MGHT outlet fits common garden-hose threads
  • Brass body withstands 200 psi and 250 °F service
  • Quarter-turn tee handle gives fast, positive shut-off
  • Certified to ASSE, CSA, FM, NSF, UL, ULC, USC, WQA standards

Watts BD-QT 1/2 in Boiler Drain Valve

This Watts boiler drain valve is a brass plumbing component designed to release water from boilers and heating systems. It features a 1/2 inch male NPT inlet and a 3/4 inch male GHT outlet for standard hose connections. The quarter-turn aluminium tee handle allows quick operation. The unit meets multiple standards including ASSE, CSA, FM, NSF, UL, ULC, USC, and WQA.

Suitable Installations and Limitations

This valve suits installers needing a reliable drain point rated for 200 psi and media temperatures up to 250 degrees F. The 3.38 inch overall length fits typical boiler tappings. It is not for installers who require a female inlet thread, a different outlet style, or a valve certified for potable water standards not listed here.

Deciding Specification

The inlet connection is a 1/2 inch male NPT thread, which must match the existing boiler tapping exactly. If the system tapping is female NPT, a different fitting or adapter is required before this valve can be installed.

Highlights

  • 1/2 in MNPT inlet connects directly to standard piping
  • 3/4 in MGHT outlet fits common garden-hose threads
  • Brass body withstands 200 psi and 250 °F service
  • Quarter-turn tee handle gives fast, positive shut-off
  • Certified to ASSE, CSA, FM, NSF, UL, ULC, USC, WQA standards

Specifications

BrandZORO SELECT
TypeOther

Questions about this item

Will the aluminum tee handle need replacement after frequent 1/4-turn operation?

The aluminum tee handle is built for 1/4-turn ball-valve operation; under normal use it lasts the life of the valve without scheduled replacement.

What pressure limit is reached first during continuous service?

The valve is rated for a maximum of 200 psi, so system pressure will hit that ceiling before any other internal limit.

How hot does the brass body get when the valve runs at 250 °F all day?

At the 250 °F media temperature rating the brass body will approach the fluid temperature, so external surfaces become very hot and should be insulated or guarded.

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