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Brass fire hose coupling with threaded NPSH and NST ends

Legend Valve

Legend Valve 322-751 A75 3" NPSH x 2-1/2" NST coupling

SKU CH-B8FW-A0H5K

Connects a 3-inch NPSH thread to a 2-1/2-inch NST thread for fire hose systems

  • Connects 3" NPSH hose to 2-1/2" NST equipment
  • Legend Valve brand trusted in fire protection systems
  • New condition ensures reliable performance from first use
  • A75 model designed for fire hose applications
  • California Proposition 65 compliance noted for safety awareness

Legend Valve Fire Hose Fitting

The Legend Valve 322-751 A75 connects a 3 inch NPSH thread to a 2-1/2 inch NST thread for fire hose assemblies. It serves fire protection professionals and maintenance crews who need a reliable transition between these two thread standards. The brass construction resists corrosion in wet environments. This fitting is intended for permanent installation on fire suppression equipment.

Verify Thread Compatibility Before Ordering

Confirm that the male side of your hose or equipment uses a 3 inch NPSH thread and the female side requires a 2-1/2 inch NST thread. Thread pitch and diameter must match exactly; mismatched threads will leak under pressure. Check local fire codes for approved fitting types. The product carries a California Proposition 65 warning for chemicals known to cause cancer and reproductive harm.

Brass Body With Threaded Ends

The brass body provides durability and resistance to water exposure during daily fire suppression use. Both ends are machined to the stated thread standards for a secure, leak-free connection. The coupling design allows straightforward installation with standard fire hose wrenches. No additional seals or gaskets are mentioned in the specifications.

Highlights

  • Connects 3" NPSH hose to 2-1/2" NST equipment
  • Legend Valve brand trusted in fire protection systems
  • New condition ensures reliable performance from first use
  • A75 model designed for fire hose applications
  • California Proposition 65 compliance noted for safety awareness

Specifications

BrandLEGEND VALVE

Questions about this item

What comes with the Legend Valve 322-751 A75 coupling and what must I buy separately?

The package contains the single brass coupling. Hose, clamps, gaskets and any thread sealant are sold separately.

How do I choose between the 3" NPSH and 2-1/2" NST ends on this fitting?

Match the 3" NPSH side to your hose or pipe thread and the 2-1/2" NST side to the hydrant or nozzle thread; they are not interchangeable.

What does the Proposition 65 warning mean for daily use of this fire hose fitting?

The brass alloy contains lead, so wash hands after handling and avoid using the fitting in potable-water systems.

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