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Campbell 1-inch FNPT brass spring check valve with taps, inline body, NBR seal, stainless spring

Campbell

Campbell 1" FNPT Brass Spring Check Valve with Taps 0.5 psi 18 gpm bathware

SKU CH-2FVK-47EH3

A 1-inch FNPT low-lead brass spring check valve with test taps, rated for 18 gpm at .5 psi cracking pressure and 200 psi maximum water pressure

  • Size1"
  • TypeOther
  • Prevents backflow with 0.5 psi cracking pressure
  • Delivers 18 gpm flow for bath applications
  • Operates reliably from 35°F to 158°F
  • Handles up to 200 psi water pressure
  • Lead-free brass body with NBR seal and stainless spring

Purpose and fit

This Campbell brass spring check valve is designed for 1-inch FNPT piping in residential or light-commercial plumbing systems. It suits installers who need a low-lead, inline device that prevents back-flow while providing integrated test taps for maintenance checks.

Practical limits

The valve opens at a cracking pressure of .5 psi and handles up to 18 gpm flow with a maximum water pressure of 200 psi. Operating temperature range spans 35 to 158 degrees F, and the seat uses bronze with an NBR seal; steam service is not rated.

Installation notes

Horizontal or vertical mounting is accepted, and the FNPT threads allow direct connection to standard fittings. The spring mechanism is stainless steel for corrosion resistance. Over-tightening can damage the brass body, and debris in the line may prevent the disc from sealing fully.

Highlights

  • Prevents backflow with 0.5 psi cracking pressure
  • Delivers 18 gpm flow for bath applications
  • Operates reliably from 35°F to 158°F
  • Handles up to 200 psi water pressure
  • Lead-free brass body with NBR seal and stainless spring

Specifications

BrandCAMPBELL
Size1"
TypeOther

Questions about this item

Which size and cracking-pressure combination should I select for a standard residential supply line?

This valve is offered in a single 1-inch FNPT size with a fixed 0.5 psi cracking pressure, so no alternative capacities or spring rates are available.

What does the 18 gpm flow rating mean when the valve is installed in a working system?

The 18 gpm figure represents the maximum water flow the inline spring mechanism can pass at the rated 200 psi pressure limit without exceeding its design parameters.

How does the FNPT connection type affect installation and pressure handling?

Female National Pipe Taper threads on both ends accept 1-inch male NPT fittings and are rated for up to 200 psi water pressure in either horizontal or vertical orientation.

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