Beck C. H.
Beck C. H. 1-1/2" MNPT x 3" Galvanized Steel Pipe Nipple Sch 40
A 3-inch Schedule 40 galvanized steel pipe nipple with 1-1/2 inch MNPT threads on both ends, rated for 150 psi at 150 degrees F and built to ASTM A-53 Type F and ASTM A733 Grade A standards
- Galvanized steel resists corrosion for long service life
- Schedule 40 wall thickness handles 150 psi at 150 °F
- Continuous weld construction prevents leaks under pressure
- Threaded MNPT both ends for quick, secure connections
- Meets ASTM A-53 Type F and ASTM A733 Grade A standards
Threaded galvanised steel nipple
The Beck 1-1/2 inch MNPT x 3 inch Schedule 40 pipe nipple provides a straight, male-threaded connection on both ends for joining female-threaded fittings in water, air or oil lines. Continuous-weld construction and hot-dip galvanising give corrosion resistance for indoor and protected outdoor plumbing. It meets ASTM A-53 Type F and ASTM A733 Grade A standards for consistent wall thickness and thread quality.
Replaces worn or damaged threaded nipples
Installers choose this nipple when an existing Schedule 40 threaded section leaks, corrodes or proves too short after a re-pipe. The 3 inch overall length bridges standard fitting centres without the need for field threading or couplings. The jump is worth it when the system operates at or below the 150 psi rating at 150 degrees Fahrenheit and the 1.61 inch inside diameter maintains required flow.
Handles 150 psi at 150 °F with 0.145 inch wall
The 1.9 inch outside diameter and 0.145 inch wall thickness deliver the full Schedule 40 pressure envelope for municipal water, compressed air and hydraulic return lines. Metal-detectable construction suits food and pharmaceutical plants where foreign-object detection is mandatory. Headroom ends at the 150 psi limit; higher-pressure or high-temperature steam service requires heavier-wall pipe not covered by this fitting.
Highlights
- Galvanized steel resists corrosion for long service life
- Schedule 40 wall thickness handles 150 psi at 150 °F
- Continuous weld construction prevents leaks under pressure
- Threaded MNPT both ends for quick, secure connections
- Meets ASTM A-53 Type F and ASTM A733 Grade A standards
Specifications
| Brand | BECK |
|---|
Questions about this item
Will the 1.9 in outside diameter clear my 1-1/2 in schedule 40 fittings?
Yes — the nipple is made to schedule 40 dimensions, so its 1.9 in outside diameter matches standard 1-1/2 in fittings.
How do I seal the MNPT threads without cracking the galvanized coating?
Apply PTFE tape or pipe dope to the male threads only, hand-tighten, then turn one to two turns with a wrench; over-tightening damages the zinc layer.
When should I replace a nipple rated to 150 psi at 150 °F?
Inspect annually for white rust, thread deformation or leaks; replace immediately if the galvanized surface shows red rust or the wall thickness drops below 0.145 in.
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