Value Brand
Value Brand 1 in MNPT x 4-1/2 in TBE Galvanized Steel Pipe Nipple Sch 40
Galvanised steel pipe nipple with 1 inch MNPT and TBE ends for air, gas or potable water systems
- Corrosion-resistant galvanized coating extends service life
- Schedule 40 steel rated for 300 psi at 150 °F
- 1 in NPT threads connect air, gas or potable water lines
- Electric-resistance welded construction ensures leak-free joints
- 4-1/2 in overall length fits standard plumbing layouts
Galvanized Steel Pipe Nipple 1 in MNPT
This 1 in nominal pipe size nipple connects air, gas, or potable water lines with male NPT threads on each end. The Schedule 40 wall thickness handles 300 psi at 150 degrees F and 150 psi steam at 350 degrees F. Electric resistance welded steel with a galvanized coating resists corrosion in standard plumbing installations.
Upgrade from lighter wall or uncoated pipe
Builders step up to Schedule 40 galvanized when system pressure exceeds lighter class ratings or when corrosion protection is required for water service. The jump is worth it for permanent runs that must meet 300 psi working pressure without adding heavier fittings.
Threaded ends install with standard pipe tools
Apply thread sealant to the male NPT ends and tighten with a pipe wrench; the 4 1/2 in overall length fits common spacing between fittings. Common issues include cross threading during start up and leaks if sealant is omitted or applied unevenly.
Highlights
- Corrosion-resistant galvanized coating extends service life
- Schedule 40 steel rated for 300 psi at 150 °F
- 1 in NPT threads connect air, gas or potable water lines
- Electric-resistance welded construction ensures leak-free joints
- 4-1/2 in overall length fits standard plumbing layouts
Specifications
| Brand | ZORO SELECT |
|---|
Questions about this item
What size female NPT fitting does the 1 in MNPT end of this nipple connect to?
The nipple has a 1 in male NPT thread, so it screws into any 1 in female NPT fitting such as a coupling, elbow, or valve.
Which way should the nipple be oriented when threading it into a Schedule 40 galvanized steel system?
Both ends are identical 1 in MNPT threads; apply thread sealant to the male threads, hand-tighten, then wrench-tighten one to two turns — over-tightening can crack the galvanized coating.
How often should the galvanized coating on this Schedule 40 nipple be inspected for corrosion in a potable water line?
Inspect annually; the galvanized finish resists corrosion but can degrade over time, especially near threads where the coating is thinner.
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