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Galvanized steel pipe nipple, threaded both ends, 4 inch length

Beck C. H.

Beck C. H. 1-1/4" MNPT x 4" Galvanized Steel Pipe Nipple Sch 40

SKU CH-B6XC-X7CVC

A 4-inch galvanised steel pipe nipple with Schedule 40 walls, threaded on both ends for 150 psi service at 150 °F

  • Galvanized steel resists corrosion for long service life
  • Schedule 40 wall thickness of .14 in handles 150 psi at 150 °F
  • Threaded MNPT both ends installs quickly with standard fittings
  • Continuous weld construction meets ASTM A53 Type F and A733 Grade A
  • 38 in inside diameter maintains strong flow in 1-1/4 in nominal systems

Plumbing Component for Threaded Connections

The Beck galvanized steel pipe nipple provides a 4-inch threaded connection for joining two female NPT fittings in water, air or gas lines. Schedule 40 wall thickness and continuous-weld construction deliver the mechanical strength required for residential and light-commercial plumbing installations. It is not intended for high-pressure hydraulic systems or applications exceeding the rated pressure and temperature limits.

Galvanized Coating and Standards Compliance

The zinc-galvanized finish resists corrosion in potable-water and compressed-air service, while the continuous weld eliminates a potential leak path found on some seam-welded nipples. Manufacturing follows ASTM A-53 Type F and ASTM A733 Grade A, so inspectors can verify material traceability without additional documentation. No thread sealant or lubricant is included; the installer must supply compatible pipe compound or tape.

Pressure Capacity and Dimensional Limits

Rated at 150 psi at 150 °F, the nipple handles typical municipal water pressure and low-pressure steam within that temperature ceiling. The 1.38-inch inside diameter and 0.14-inch wall maintain flow area while meeting Schedule 40 dimensions, but the fixed 4-inch overall length offers no adjustment for misaligned joints. Systems requiring longer runs, higher pressures or elevated temperatures will need alternative fittings.

Highlights

  • Galvanized steel resists corrosion for long service life
  • Schedule 40 wall thickness of .14 in handles 150 psi at 150 °F
  • Threaded MNPT both ends installs quickly with standard fittings
  • Continuous weld construction meets ASTM A53 Type F and A733 Grade A
  • 38 in inside diameter maintains strong flow in 1-1/4 in nominal systems

Specifications

BrandBECK

Questions about this item

Will the galvanized coating on the Schedule 40 nipple need replacement due to corrosion over time?

The galvanized steel construction provides corrosion resistance; the coating protects the underlying steel and does not require scheduled replacement under normal water supply conditions.

What pressure limit applies when the nipple is used continuously at elevated temperature?

The maximum rated pressure is 150 psi at 150 degrees Fahrenheit; sustained operation at higher temperatures would reduce the allowable pressure.

Does the nipple generate noticeable heat or noise when water flows through it all day?

As a passive threaded fitting with 0.14 inch wall thickness, it produces no mechanical noise and negligible heat rise during continuous flow.

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