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Dark malleable iron 90 degree street elbow FNPT by MNPT connection

Value Brand

Value Brand 1-1/2" Malleable Iron 90 Degree Street Elbow

SKU CH-K58Y-92GZB

A malleable iron street elbow that joins 1-1/2 in FNPT to MNPT threads at a 90 degree angle, rated to 1500 psi at 150 degrees F and 300 psi saturated steam, meeting ASME B 16.3 and B 16.4.

  • Durable malleable iron construction resists cracking under stress
  • 90-degree street elbow enables tight directional changes in piping
  • FNPT x MNPT connections allow direct pipe-to-fitting assembly
  • Rated for 1500 psi at 150 degrees F for high-pressure systems
  • Meets ASME B16.3, B16.4, ASTM A197, A47, FM and UL standards

1-1/2 Inch Malleable Iron Street Elbow

This 90-degree street elbow connects a female NPT thread to a male NPT thread in a 1-1/2 inch pipe size. It is made from malleable iron rated to Class 300 and meets ASME B16.3 and B16.4 standards. The fitting carries FM Approved and UL Listed markings for code compliance. It suits new plumbing installations needing a directional change.

Pressure and Temperature Limits

The fitting handles a maximum pressure of 1500 psi at 150 degrees Fahrenheit and a saturated steam pressure of 300 psi. Its operating temperature range spans from -20 to 550 degrees Fahrenheit. These ratings define the practical limits for water, oil, air and steam service. Exceeding them risks joint failure or leakage.

Thread and Material Compatibility

Verify that the existing piping uses NPT threads and that the 1-1/2 inch size matches the line. Malleable iron should not be joined directly to dissimilar metals without dielectric protection to avoid galvanic corrosion. Confirm the system pressure and temperature stay within the listed ratings. This fitting is not for applications requiring a different thread standard or pressure class.

Highlights

  • Durable malleable iron construction resists cracking under stress
  • 90-degree street elbow enables tight directional changes in piping
  • FNPT x MNPT connections allow direct pipe-to-fitting assembly
  • Rated for 1500 psi at 150 degrees F for high-pressure systems
  • Meets ASME B16.3, B16.4, ASTM A197, A47, FM and UL standards

Specifications

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Questions about this item

Should I choose the 1-1/2" size or a different pipe size?

This fitting is built for 1-1/2 in pipe only; match it to the same nominal size in your system for a proper seal.

What does the 1500 psi rating mean when the fitting is installed?

It is the maximum non-shock working pressure at 150 °F; above that temperature the allowable pressure drops.

Does the FNPT x MNPT connection follow a specific thread standard?

Yes, it conforms to ASME B16.3 and B16.4 dimensions, so it threads into any matching NPT port.

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