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Campbell 4032E brass spring check valve with FNPT threads

Campbell

Campbell 4032E spring check valve brass 1-1/4 FNPT .5 psi 23 gpm

SKU CH-FHVS-XBMPJ

Inline spring check valve with brass body and nitrile seal, rated 23 gpm at .5 psi cracking pressure

  • Prevents backflow with .5 psi cracking pressure
  • Delivers 23 gpm through 1-1/4 FNPT inline design
  • Operates 35 to 180 Degrees F with nitrile seal
  • Withstands 400 psi water pressure in brass body
  • Spring-loaded stainless steel mechanism mounts horizontal or vertical

Campbell 4032E Spring Check Valve

The Campbell 4032E is a lead-free brass spring check valve with 1-1/4 inch FNPT connections. It uses an inline spring mechanism to allow flow in one direction while preventing backflow. The valve body is brass with a bronze seat and nitrile seals. A stainless steel spring provides the closing force.

Suits systems needing low cracking pressure

This valve opens at .5 psi, making it suitable for gravity-fed or low-head installations where minimal pressure is available. It handles up to 23 gpm flow capacity and operates between 35 and 180 degrees Fahrenheit. Installers requiring a higher cracking pressure or steam-rated service should select a different model.

Installs inline in horizontal or vertical runs

The valve mounts in either horizontal or vertical orientation using standard FNPT threads. Apply thread sealant compatible with nitrile seals and brass to prevent leaks. Over-tightening can damage the brass body or strip threads. Ensure flow direction matches the arrow marked on the body.

How it compares

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Price $56.99
Typical for this category: the median of 1,132 items is $54.99.

Specifications

Product
Brand nameCAMPBELL
Product typeOther

Questions about this item

What pipe size and thread type does the 4032E need to connect to?

It requires a 1-1/4 inch FNPT female thread on both ends for inline installation.

Will the .5 psi cracking pressure allow flow in a gravity-fed line with low head pressure?

Yes, the valve opens at .5 psi, which is low enough for most gravity-fed systems to overcome.

How can I confirm the valve is sealing correctly after fitting it?

Pressurise the line up to 400 psi and verify no leakage past the nitrile seal; flow should stop when supply pressure drops below .5 psi.

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