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Brass swing check valve, 1 inch FNPT, inline body, horizontal or vertical mount

Hammond Valve Corp

Hammond Valve Corp 968 Swing Check Valve 1 In FNPT Brass 200 psi

SKU CH-8A36-TGSCJ MPN 968

Inline swing check valve with brass body and FNPT connections rated 200 psi at 150 °F

  • TypeDrain Components
  • Inline swing design prevents backflow without external power
  • Brass body resists corrosion in water systems up to 200 psi
  • Operates horizontally or vertically for flexible pipe routing
  • Cracks open at .750 to 1.000 psi for low-head applications
  • Withstands temperatures from -20 °F to 150 °F

1-Inch Brass Swing Check Valve

The Hammond Valve Corp 968 is a new inline swing check valve built from brass for 1-inch FNPT connections. It suits plumbing systems that require automatic back-flow prevention in horizontal or vertical runs. The valve handles water pressures up to 200 psi at 150 degrees Fahrenheit and operates down to minus 20 degrees Fahrenheit. It is not rated for steam service.

Capacity and headroom: 200 psi water rating

The valve opens with a cracking pressure between .750 and 1.000 psi, allowing flow to start with minimal head pressure. Its 200 psi rating at 150 degrees Fahrenheit provides headroom for typical residential and light-commercial cold-water lines. The brass body and seal resist corrosion in potable water applications. Steam lines exceed the published limits and are not supported.

Brass body and FNPT ends

The all-brass construction eliminates the need for separate dielectric unions when joining dissimilar metals. FNPT threads on both ends accept standard 1-inch pipe nipples or adapters without special tools. The inline swing mechanism is serviceable without removing the valve from the pipeline. No electronic components or software are included.

Highlights

  • Inline swing design prevents backflow without external power
  • Brass body resists corrosion in water systems up to 200 psi
  • Operates horizontally or vertically for flexible pipe routing
  • Cracks open at .750 to 1.000 psi for low-head applications
  • Withstands temperatures from -20 °F to 150 °F

Specifications

TypeDrain Components
BrandHammond Valve
Model968 1

Questions about this item

Will the 1 in FNPT threads on the 968 valve mate with my existing brass piping without adapters?

The valve uses 1 in FNPT x FNPT connections, so it threads directly onto matching male NPT pipe ends in brass or compatible materials.

How can I confirm the swing check is opening and closing correctly after installation?

Flow should pass freely in the forward direction and stop with no visible backflow; the cracking pressure range is .750 to 1.000 psi, so a slight pressure differential will unseat the disc.

Does the box include any gaskets, thread sealant or mounting hardware, or must I purchase those separately?

The valve body is all brass with a brass-to-brass seal; no gaskets or hardware are included, so you will need thread sealant or tape for the FNPT joints.

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