Value Brand 1-1/2" MNPT Galvanized Square Head Plug
Galvanized malleable iron square head plug with 1-1/2 inch male NPT threads, Class 150 rated for temperatures from -20 to 366 degrees Fahrenheit
- Galvanized coating resists corrosion for longer service life
- Square head design allows easy tightening with a wrench
- Male NPT threads provide a secure pipe connection
- Rated for temperatures from -20 to 366 degrees Fahrenheit
- Class 150 pressure rating suits standard plumbing applications
1-1/2" MNPT Galvanized Square Head Plug
This galvanised malleable iron plug seals a 1-1/2 inch male NPT opening in plumbing and industrial piping systems. It is rated for Class 150 service and suits installers needing a standard threaded closure for water, air or inert gas lines.
Sustained temperature and pressure performance
The fitting operates continuously from -20 degrees to 366 degrees Fahrenheit within its Class 150 pressure rating. Galvanised coating resists corrosion during long-term exposure to moisture, while the square head allows repeated installation and removal with a wrench without rounding.
Compatibility checks before ordering
Verify that the mating port uses male NPT threads and matches the 1-1/2 inch nominal pipe size. Confirm the system pressure and temperature stay within the Class 150 and 366 degree Fahrenheit limits. Note the product carries a California Proposition 65 warning for cancer and reproductive harm.
How it compares
Measured against everything we stock in Hose Fittings, Adapters & Clamps, at today’s prices. Recalculated every night.
- Price $3.99
- Cheaper than about 87% of the 2,955 comparable items (median $17.99).
Specifications
| Product | |
|---|---|
| Brand name | ZORO SELECT |
Questions about this item
Does the galvanized malleable iron plug generate heat or noise during continuous service?
The plug is a passive fitting with no moving parts or power draw, so it produces no heat or noise in normal operation.
What thread sealant or seal is required for the 1-1/2" male NPT connection?
The plug ships without pre-applied thread sealant or an included seal, so you must supply compatible pipe thread sealant or tape.
Will the Class 150 rating and -20 to 366 °F range match older galvanized pipe already in place?
Class 150 and the stated temperature range are standard for galvanized malleable iron fittings, so the plug fits existing systems built to the same class.
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