3/4" NPT Horizontal Swing Check Valve, Brass Heavy-Duty Female Thread, DN20

About this item

For pump discharge lines, sump returns or a boiler loop where low flow resistance matters, a 3/4" NPT horizontal swing check valve is a common pick. This heavy-duty brass valve has female threads and is labeled DN20, the metric equivalent of 3/4" nominal.

Does a swing check valve have to be installed horizontally?

This one is sold as a horizontal swing check. Mount it in a horizontal run with the bonnet up and the flow arrow pointing downstream. In a vertical run, the disc may not close properly.

• Female NPT ends accept male nipples or male adapters for copper or PEX.
• Swing designs open easily, which helps on gravity or low-pressure lines.
• Pressure and temperature ratings are not listed, so ask the seller before use.
• Follow local code for any change to a potable water or heating system.

Bulk buyers can request a wholesale quote on our site.