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Malleable iron reducer coupling, dark metal finish, threaded ends, 2 1/2 by 1 inch

Value Brand

Value Brand 2 1/2 in x 1 in Malleable Iron Reducer Coupling Class 150

SKU CH-N2P4-483WV

Connects 2 1/2 in and 1 in FNPT pipes with malleable iron rated to 300 psi and 366 Degrees F

  • Malleable iron construction resists cracking under pressure
  • Class 150 rating handles 300 psi at 150°F
  • FNPT threads seal without welding or adhesive
  • Meets ASME B16.3, B16.4 and ASTM A197, A47 standards
  • FM Approved and UL Listed for code compliance

Zoro Select Malleable Iron Reducer

This Zoro Select reducer coupling connects a 2 1/2 in pipe to a 1 in pipe using FNPT threads. It is made from malleable iron and rated Class 150 for standard plumbing installations. The fitting meets ASME B 16.3, ASME B 16.4, ASTM A-197 and ASTM A47 standards. It carries FM Approved and UL Listed marks for code compliance.

Capacity and pressure limits

The coupling handles a maximum pressure of 300 psi at 150 Degrees F and saturated steam pressure up to 150 psi. Its temperature range spans -20 Degrees to 366 Degrees F for diverse fluid applications. The Class 150 rating defines its comfortable operating envelope for water, oil and gas lines. It is not suited for systems that exceed these pressure or temperature boundaries.

Build quality and thread implications

Malleable iron construction provides mechanical strength and resistance to cracking under stress. The FNPT threads create a tapered seal that tightens with assembly, requiring thread sealant for leak-free joints. The material and standards suit rigid piping layouts where the fitting remains stationary after installation. It is not designed for frequent disassembly or flexible hose connections.

Highlights

  • Malleable iron construction resists cracking under pressure
  • Class 150 rating handles 300 psi at 150°F
  • FNPT threads seal without welding or adhesive
  • Meets ASME B16.3, B16.4 and ASTM A197, A47 standards
  • FM Approved and UL Listed for code compliance

Specifications

BrandZoro Select

Questions about this item

Will the 2 1/2 in x 1 in FNPT threads connect to my existing NPT pipe threads?

The coupling uses FNPT threads to the ASME B16.3 standard, which matches standard NPT pipe threads for a seal with thread sealant.

How can I verify the fitting holds pressure after installation?

Pressurize the system up to the 300 psi rating at 150 °F and check all joints for leaks; the UL and FM listings confirm the casting meets the required test standard.

Does the box include thread sealant or pipe nipples for the 2 1/2 in and 1 in ends?

Only the malleable iron reducer coupling is supplied; pipe thread sealant and any nipples or pipe lengths must be purchased separately.

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