Value Brand
Value Brand Straight Malleable Iron Coupling 2 1/2" NPT x 2" NPT
A galvanised malleable-iron straight coupling joining 2 1/2 in and 2 in female NPT threads, rated Class 150
- Malleable iron construction provides durable corrosion resistance
- Class 150 rating supports standard pressure applications
- Galvanised finish protects against rust and wear
- Reducing design connects 2 1/2 inch NPT to 2 inch NPT
- California Proposition 65 warning discloses chemical exposure risk
2 1/2" NPT x 2" NPT Coupling
This straight malleable iron coupling connects a 2 1/2 inch NPT female thread to a 2 inch NPT female thread. The galvanized Class 150 fitting suits plumbing systems requiring a transition between these two pipe sizes. It is supplied new and complies with California Proposition 65 warnings for listed chemicals.
Installers reducing pipe diameter
The coupling suits technicians joining dissimilar NPT thread sizes in water, gas or oil lines rated for Class 150 service. It is not intended for applications demanding a straight coupling of identical diameters or for systems exceeding the Class 150 pressure rating. Buyers needing different thread standards or higher pressure classes should look elsewhere.
Class 150 pressure rating and thread engagement
The fitting handles standard Class 150 working pressures for the 2 1/2 inch and 2 inch NPT connections. Thread engagement follows the 11 1/2 threads per inch specification on the smaller end and 8 threads per inch on the larger end. Headroom ends at the Class 150 limit; higher-pressure systems require a different fitting class.
Highlights
- Malleable iron construction provides durable corrosion resistance
- Class 150 rating supports standard pressure applications
- Galvanised finish protects against rust and wear
- Reducing design connects 2 1/2 inch NPT to 2 inch NPT
- California Proposition 65 warning discloses chemical exposure risk
Specifications
| Brand | ZORO SELECT |
|---|
Questions about this item
What pipe sizes must I already have to connect this 2 1/2" NPT by 2" NPT coupling?
You need one pipe with 2 1/2 inch NPT male threads and another with 2 inch NPT male threads; both ends are female threaded.
Will this Class 150 malleable iron coupling mate with older galvanised pipe threads I have on site?
Yes, the NPT threads follow the same taper standard, so it will engage existing galvanised pipe of matching nominal sizes.
How can I confirm the joint is sealed properly after assembly?
Pressurise the system to its working limit and inspect both threaded connections for leaks; no weeping indicates a sound joint.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.
Taylor 70204 Acrylic Coated Polyester Gray Hot Shot BoatGuard Boat Cover
- Transparent
BoatBuckle F12071 Kwik-Lok Gunwale Tie-Down Stainless Steel
- Transparent



