Value Brand Malleable Iron Straight Coupling 1" NPT Class 150
A galvanised malleable-iron straight coupling with 1-inch NPT female threads, rated Class 150 for standard-pressure plumbing systems
- Malleable iron construction resists cracking under pressure
- Galvanised coating protects against corrosion in wet systems
- Class 150 rating suits standard residential plumbing pressure
- 1 inch NPT threads connect directly to matching pipe
- California Prop 65 warning identifies regulated chemical content
Value Brand Malleable Iron Coupling 1" NPT
The Value Brand Malleable Iron Straight Coupling connects two 1 inch NPT female threaded pipes in a straight line. It is made from galvanized malleable iron rated for Class 150 service. The fitting suits plumbing systems that require a durable, pressure-rated joint.
Installers joining two 1" NPT female ends
This coupling suits installers joining two 1" NPT female ends in water, air or oil lines where Class 150 pressure rating is accepted. It is not for systems that require a higher pressure class, a different thread standard or a reducing connection between dissimilar pipe sizes.
Class 150 pressure rating headroom
The Class 150 rating provides headroom for standard residential and light commercial pressure requirements. It runs out when the system design calls for a higher pressure class or when the media demands a material other than galvanized malleable iron.
How it compares
Measured against everything we stock in Hose Fittings, Adapters & Clamps, at today’s prices. Recalculated every night.
- Price $2.99
- Cheaper than about 90% of the 2,955 comparable items (median $17.99).
Specifications
| Product | |
|---|---|
| Brand name | Zoro Select |
Questions about this item
What size NPT threads must the pipes have to connect to this 1" coupling?
Both ends require 1" NPT threads with 11 1/2 threads per inch for a proper seal.
Will this Class 150 malleable iron coupling handle the same pressure as my existing galvanised fittings?
Yes, Class 150 rating matches standard galvanised malleable iron fittings for consistent pressure performance.
How can I confirm the coupling is correctly installed and leak-free?
Pressurise the system and inspect both threaded joints; no visible seepage means the connection is sound.
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