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National Spencer 2178 hose assembly, 8 ft rubber hose with aluminum and vinyl FNPT fittings

National Spencer 2178 Hose Assembly 8 ft 3/4 in ID 100 psi

SKU CH-SR7W-FJV7R

Eight-foot nitrile discharge hose with 3/4-inch bore and aluminium FNPT fittings rated to 100 psi

  • Rubber construction resists wear during daily use
  • Eight-foot length reaches distant connection points
  • Three-quarter inch bore delivers high-volume flow
  • Nitrile tube and cover handle oils and chemicals
  • Aluminium and vinyl FNPT fittings thread directly onto 76892 or 76893 equipment

8 ft Nitrile Discharge Hose

This 8 ft discharge hose uses a nitrile tube and cover rated for 100 psi at 70 F. Aluminium and vinyl FNPT fittings in 5/8 in size connect at each end. It suits fluid transfer where a food-grade rating is not required.

Operating Temperature and Pressure

The assembly works between 30 and 90 degrees F with a maximum working pressure of 100 psi at 70 F. Nitrile construction resists oil and abrasion during normal use. No external power or active cooling is involved.

Manufacturer Compatibility References

The hose is listed for use with manufacturer numbers 76892 and 76893. Agency compliance is noted as NS. No additional clamps, adapters or software are bundled with the assembly.

Highlights

  • Rubber construction resists wear during daily use
  • Eight-foot length reaches distant connection points
  • Three-quarter inch bore delivers high-volume flow
  • Nitrile tube and cover handle oils and chemicals
  • Aluminium and vinyl FNPT fittings thread directly onto 76892 or 76893 equipment

Specifications

BrandNATIONAL SPENCER

Questions about this item

How do I install the 8 ft hose with its 5/8 in FNPT fittings, and what step is often missed?

Thread the aluminum FNPT fitting A and the vinyl FNPT fitting B onto matching 5/8 in male NPT ports, then tighten with a wrench on the hex flats; the step often missed is using PTFE tape or pipe sealant on the tapered threads to prevent leaks at 100 psi.

What maintenance or replacement will the nitrile tube and cover need over time?

Inspect the nitrile tube and cover regularly for cracks, hardening, or abrasion; replace the entire assembly if the rubber shows degradation or if fittings corrode, as the hose is not designed for field repair.

What limit appears first during sustained use at the 100 psi rating?

The maximum working pressure of 100 psi at 70 °F is the primary limit; exceeding it or operating above 90 °F reduces hose life and can cause fitting separation or tube rupture.

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