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Low-lead brass spring check valve with FNPT threads

Campbell

Campbell 1-1/4" FNPT Low Lead Brass Spring Check Valve bathware

SKU CH-QA9B-DFKHR

Inline spring check valve with 1-1/4" FNPT connections, low-lead brass body, 23 gpm flow, and 0.5 psi cracking pressure

  • Size1 1/4 in
  • Low lead brass meets potable-water safety standards
  • 5 psi cracking pressure allows flow with minimal head loss
  • 23 gpm capacity handles high-demand residential lines
  • Stainless steel spring resists corrosion for reliable cycling
  • 35 to 158 °F range suits hot and cold water systems

Campbell 1-1/4" FNPT Brass Check Valve

This Campbell check valve controls flow direction in plumbing systems using a 1-1/4 inch FNPT connection. The low lead brass body meets drinking water safety requirements. An inline spring mechanism opens at 0.5 psi cracking pressure and allows up to 23 gpm flow. It mounts in horizontal or vertical orientations.

Suitable Applications and Limitations

This valve suits residential and light commercial water lines operating between 35 and 158 degrees Fahrenheit. The 200 psi maximum water pressure rating covers typical supply pressures. Buyers needing steam service should look elsewhere because the valve carries no steam rating. Those requiring a different pipe size or connection type must select another model.

Critical Specification for Selection

The 1-1/4 inch FNPT x FNPT connection size is the single specification that determines whether this valve fits the existing piping. Verify the thread type and diameter before purchase to ensure compatibility.

How it compares

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

Price $39.99
Typical for this category: the median of 1,499 items is $39.99.

Specifications

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

Questions about this item

How do I confirm the valve is operating correctly after installation?

Verify flow in the intended direction and check that backflow stops when pressure drops below 0.5 psi cracking pressure.

What comes in the box and what must I supply?

The valve body with FNPT x FNPT threads is included; you must provide compatible 1 1/4 inch NPT pipe fittings and thread sealant.

Which version suits a 23 gpm hot-water line at 158 °F?

The brass body, NBR seal and stainless spring are rated for 23 gpm water flow and a maximum temperature of 158 °F.

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