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Small galvanised malleable iron pipe coupling with female NPT threads

Value Brand

Value Brand 5P917 Malleable Iron Coupling 1/4 NPT Class 150

SKU CH-YHBK-K2YSG

Malleable iron galvanised coupling joins two 1/4 inch NPT female threads at Class 150 pressure rating

  • Malleable iron construction resists cracking under pressure
  • Class 150 rating suits standard low-pressure plumbing systems
  • 1/4 inch NPT threads connect directly to matching pipe fittings
  • Galvanized finish protects against corrosion in wet environments
  • New condition ensures full material integrity from first use

Application & Fit

This malleable iron coupling joins two female NPT threads sized at 1/4 inch. It suits low-pressure plumbing lines rated to Class 150. Installers working on water, air or inert gas systems will find it matches standard taper threads. The galvanized finish adds surface protection in damp environments.

Pre-Installation Checks

Verify that both mating ports are 1/4 inch female NPT before ordering. Confirm the system pressure does not exceed the Class 150 rating. Ensure the carried fluid is compatible with galvanized malleable iron to avoid corrosion. Check local codes for any restrictions on this material in potable water lines.

Service Conditions

The galvanized coating resists rust in normal indoor or sheltered outdoor use. No moving parts means silent operation and no vibration fatigue. Pressure containment stays within Class 150 limits at ambient temperatures. The coupling adds negligible flow restriction to the line.

Highlights

  • Malleable iron construction resists cracking under pressure
  • Class 150 rating suits standard low-pressure plumbing systems
  • 1/4 inch NPT threads connect directly to matching pipe fittings
  • Galvanized finish protects against corrosion in wet environments
  • New condition ensures full material integrity from first use

Specifications

BrandZORO SELECT

Questions about this item

Does the Value Brand 5P917 coupling come with any sealant or tape, or must I buy thread sealant separately?

The coupling is supplied as a single galvanised malleable iron fitting with 1/4 NPT female threads on both ends; thread sealant or PTFE tape is not included and must be purchased separately.

The listing shows Class 150 — is that the only pressure class available for this 1/4 NPT size?

This specific model 5P917 is manufactured to Class 150 only; other pressure classes would carry different part numbers.

What does the Class 150 rating mean for a 1/4 NPT coupling in a typical water or air line?

Class 150 indicates a maximum working pressure of 150 psi for non-shock service at ambient temperature, suitable for standard low-pressure plumbing and compressed-air installations.

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