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Brass swing check valve, 1 inch FNPT, model 967

Hammond Valve Corp

Hammond Valve Corp 967 1 in FNPT Brass Swing Check Valve .750-1.000 psi 200 psi 150°F

SKU CH-9Y2E-XMEP1 MPN 967

A brass inline swing check valve with FNPT connections, rated 200 psi at 150 °F and a cracking pressure of .750 to 1.000 psi

  • TypeDrain Components
  • Prevents backflow with inline swing mechanism
  • Brass body resists corrosion in water systems
  • Operates at .750 to 1.000 psi cracking pressure
  • Rated 200 psi at 150°F for hot water
  • Mounts horizontally or vertically for flexible install

1-inch brass swing check valve

This Hammond Valve Corp model 967 is a new inline swing check valve built from brass with FNPT x FNPT connections. It suits plumbing systems that require automatic back-flow prevention in a 1-inch pipe size. The valve operates in both horizontal and vertical mounting orientations.

Cracking pressure 0.750 to 1.000 psi

The valve begins to open between .750 and 1.000 psi, so flow starts with very little head pressure. It is rated for a maximum water pressure of 200 psi at 150 degrees F and a minimum temperature of -20 degrees F. Steam service is not rated, so the valve should not be used in steam lines.

Brass body with FNPT threads

Installation uses standard FNPT threads on both ends, requiring only thread sealant and a wrench on the hex flats. The brass body and brass seal resist corrosion in water systems but are not rated for steam. Over-tightening can damage threads, and debris in the line may prevent the swing disc from sealing fully.

Highlights

  • Prevents backflow with inline swing mechanism
  • Brass body resists corrosion in water systems
  • Operates at .750 to 1.000 psi cracking pressure
  • Rated 200 psi at 150°F for hot water
  • Mounts horizontally or vertically for flexible install

Specifications

TypeDrain Components
BrandHammond Valve
Model967 1

Questions about this item

Does the 200 psi brass body run hot or make noise when water flows continuously at 150°F?

The valve is rated for 200 psi at 150°F; swing check valves operate silently with no moving parts that generate heat during steady flow.

What pipe fittings do I need to connect the 1 in FNPT ends on the 967 valve?

You need 1 inch NPT male threaded pipe or adapters on both sides; the valve has female NPT connections ready for standard pipe threads.

Will the .750 to 1.000 psi cracking pressure hold back pressure from an older low-head pump system?

Yes, the cracking pressure range of .750 to 1.000 psi is low enough to open with minimal head pressure from older pump setups.

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