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Bronze float valve with 1-1/4 inch FNPT pipe mount

Watts

Watts 1250 Float Valve 1-1/4 In Bronze Pipe Mount bathware

SKU CH-9RV9-CPF9G

Bronze float valve with 1-1/4 inch FNPT connection handles up to 348 gpm at 100 psi and 180 degrees F

  • Size1 1/4 in
  • Heavy-duty bronze construction resists corrosion
  • 165 psi maximum pressure handles demanding supply lines
  • 250 gpm flow at 50 psi fills tanks quickly
  • 348 gpm flow at 100 psi meets high-demand applications
  • 180 °F temperature rating suits hot-water systems

Float Valve for 1-1/4 Inch Piping

The Watts 1250 is a heavy-duty bronze float valve designed for pipe-mount installation with a 1-1/4 inch FNPT connection. It suits commercial or residential water-supply systems that require reliable level control. The bronze body and brass rod provide corrosion resistance in potable or non-potable applications. This valve is not for buyers who need an integrated float or a different connection size.

Thermals, Noise and Power Draw

The valve operates mechanically without electrical power, so it produces no noise or heat of its own. It withstands a maximum temperature of 180 Degrees F and a maximum pressure of 165 psi. Flow rates are 250 gpm at 50 psi and 348 gpm at 100 psi. The bronze construction handles thermal cycling in hot-water service without degradation.

Build Integration

The 1-1/4 inch FNPT bulkhead mounts directly into threaded piping, requiring no separate flange or adapter. A 3/8 inch -16 brass rod thread accepts a user-supplied float and rod assembly, freeing the installer to choose float size and buoyancy for the tank. The valve contains a chemical known to the State of California to cause cancer and birth defects or other reproductive harm.

How it compares

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

Price $168.99
Pricier than about 83% of the 1,499 comparable items (median $39.99).

Specifications

Product
Brand nameWATTS
Product typeOther
Size & build
Size1 1/4 in

Questions about this item

How do I install the Watts 1250 float valve on a 1-1/4 inch FNPT bulkhead, and what step is often missed?

Thread the bronze body onto the 1-1/4 inch FNPT bulkhead connection; the step often missed is confirming the 3/8-16 brass rod engages the lever arm fully before pressurising the line.

What maintenance will the Watts 1250 float valve need over time?

Inspect the bronze body and brass rod for mineral buildup or corrosion; replace the valve if the 165 psi maximum pressure or 180°F temperature limit has been exceeded repeatedly.

At what pressure does the Watts 1250 float valve reach its flow limit first during sustained use?

At 100 psi the valve delivers 348 gpm, which is the higher published flow point before the 165 psi maximum pressure rating becomes the governing limit.

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