Ball valves are a reliable way to control flow, but choosing the wrong one for your industrial line can cause leaks or flow restrictions. Which industrial valve you need usually comes down to two questions: What size pipe do you have, and what medium will flow through it? The ANIX 3/8" Ball Valve 2000 WOG Threaded FNPT Stainless Steel 316 FULL PORT and the FNW Fig 321A 3/4" Carbon Steel Ball Valve 150 WSP 3-Piece Industrial Valve are both threaded ball valves, but they are built for very different jobs. One is a compact stainless steel valve for small lines; the other is a larger carbon steel valve for 3/4" piping. The price difference is $15.02, with the ANIX at $23.98 and the FNW at $39.00.
Quick Verdict
If your installation calls for a 3/8" threaded connection and you want stainless steel with a full-port bore, the ANIX is the straightforward pick at $23.98. If you need a 3/4" valve with a carbon steel body and a manual lever handle, the FNW is the better match at $39.00. The FNW costs more because it's a larger valve, but that larger bore is exactly what some systems require.
At a Glance
| Feature | ANIX 3/8" Ball Valve | FNW 3/4" Ball Valve |
|---|---|---|
| Price | USD 23.98 | USD 39.00 |
| Diameter | 3/8 inch | 3/4 in |
| Housing Material | Stainless Steel CF8M | Carbon Steel |
| End Connection | Threaded FNPT | FPT |
| Design | Full port | 3-piece body |
| Media Compatibility | Air, Fuel, Oil, Wastewater, Water | Water |
Where Each Valve Fits
Choose the ANIX when your line is 3/8" and you need corrosion-resistant stainless steel. It is listed for use with air, fuel, oil, wastewater, and water, making it the more versatile of the two for media compatibility. Choose the FNW when you need a larger 3/4" bore and prefer a carbon steel valve with a manual lever handle. The FNW is listed for water service, so it is the more specialized option.
Product Notes
3/8" Ball Valve 2000 WOG Threaded FNPT Stainless Steel 316 FULL PORT
The ANIX valve is the lower-priced option at $23.98, and it brings a full-port design to a 3/8" footprint. The stainless steel CF8M housing is a good match for water, air, fuel, oil, and wastewater service according to the listed media. The threaded FNPT ends connect directly to female NPT piping, simplifying installation. The main limitation is size: the 3/8-inch bore restricts flow to smaller lines, so this is not the valve for high-volume applications. If your piping is 3/4", this valve is not the right fit.
FNW Fig 321A 3/4" Carbon Steel Ball Valve 150 WSP 3-Piece Industrial Valve
The FNW valve costs $39.00, making it the higher-priced unit, but it steps up the bore to 3/4 inch. The carbon steel body and three-piece design suit industrial environments where a larger flow path is needed. It comes with a manual lever handle, which gives you a direct, simple way to open and close the valve. The listed media compatibility is water, so it is not the valve to pick if you need to handle fuel or wastewater. The seller also notes that this valve has not been pressure tested and that the buyer is responsible for confirming suitability, pressure rating, and media compatibility before installation. Cosmetic wear is to be expected, so inspect the valve for your own requirements.
Final Choice by Use Case
Choose the ANIX 3/8" stainless steel ball valve when you're working with 3/8-inch piping and want corrosion resistance for air, fuel, oil, wastewater, or water. Choose the FNW 3/4" carbon steel ball valve when you have 3/4-inch lines and need a larger bore with a manual lever handle. Price is not the only differentiator-size and media compatibility drive the decision.
