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Bronze bulkhead float valve, half-inch NPSM, includes locknut and gasket

Watts

Watts HD-500-12 1/2 in Bronze Bulkhead Float Valve

SKU CH-BB6Y-06V7H

A 1/2-inch bronze bulkhead float valve rated for 165 psi and 180°F, delivering 20 gpm at 50 psi and 31 gpm at 100 psi with included locknut and gasket

  • Size1/2 in
  • Bronze body resists corrosion in hot water up to 180°F
  • Bulkhead mount with locknut and gasket simplifies tank installation
  • 20 gpm at 50 psi meets high-demand supply needs
  • 31 gpm at 100 psi handles pressure spikes reliably
  • Rated to 165 psi max pressure for durable service

Bulkhead Float Valve 1/2 in Bronze

This Watts HD-500-12 is a bulkhead-mount float valve with a bronze body and a 1/2 inch NPSM connection. It includes a locknut and gasket for installation and is rated for a maximum pressure of 165 psi and a maximum temperature of 180 Degrees F.

Suits tanks needing a side-wall bronze valve

Installers who need a bulkhead-mounted valve with bronze construction for water supply control will find this model fits. Buyers who require a different connection size, a bottom-entry configuration, or a float rod and ball assembly included should look at other valve types.

Flow rates at two supply pressures

At 50 psi supply pressure the valve delivers 20 gpm, and at 100 psi it delivers 31 gpm. These two flow figures are the key specifications for sizing the valve to the required fill rate.

How it compares

Measured against everything we stock in Bath Accessories & Soap Dispensers, at today’s prices. Recalculated every night.

Price $50.99
Pricier than about 56% of the 1,499 comparable items (median $39.99).

Specifications

Product
Brand nameWATTS
Product typeOther
Size & build
Size1/2 in

Questions about this item

What does the 1/2 in NPSM connection mean for pipe compatibility?

The valve uses a 1/2 inch NPSM straight thread connection. It seals with the included gasket against a flat bulkhead surface rather than tapering into pipe threads.

What bulkhead cutout and clearance does the bronze body need?

The 1/2 inch bulkhead mount requires a matching hole in the tank wall. The included locknut secures the bronze body from the inside, so allow space for a wrench on the nut.

How is the float attached to the 1/4 in.-20 rod thread, and what mistake should I avoid?

Thread a compatible float onto the 1/4 inch-20 rod thread until snug. Do not overtighten; the bronze threads can strip if forced past finger-tight plus a quarter turn.

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