Choosing among industrial valves means deciding not just what size you need, but how you want to operate the valve. Two very different options sit less than twenty dollars apart: a large manual ball valve and an electric solenoid valve. Both are new and listed close in price, but the right choice depends on whether your priority is manual shutoff or automated low-pressure control.
Quick Verdict
If you need a corrosion-resistant shutoff for a large line, the 4" SS 316 Ball Valve is the straightforward pick. It operates without electricity and has a full-port design. If you need a valve that can be controlled by an electrical signal, the ASCO 8215C83 Solenoid Valve is the one. It is built for low-pressure systems.
At a Glance
| Feature | 4" SS 316 Ball Valve | ASCO 8215C83 Solenoid Valve |
|---|---|---|
| Listed Price | $76.99 | $95.55 |
| Valve Operation | Manual lever | Solenoid |
| Connection Size | 4" NPT | 2" NPT |
| Flow Path | Full port | 2-way, normally open |
| Condition | New | New - Open box |
Where Each Wins
The 4" SS 316 Ball Valve wins when you need dependable manual operation. The 316 stainless steel body and ball handle water, oil, and gas, and the 1000 WOG rating gives you a wide pressure margin. You don't have to think about power, wiring, or control signals.
The ASCO 8215C83 wins when automation is the goal. It is designed to work on 120 VAC and stays open by default, so power is only needed to close it. That makes it a good fit for remote control and fail-open scenarios in low-pressure lines.
4" 4 in NPT Threaded Full Port Ball Valve Stainless Steel SS 316

The heavy-duty lever handle and PTFE seals are the standout details here. This is a fully manual valve, so you get straightforward on/off operation without any electrical complexity. The 1000 WOG rating gives it a solid margin for water, oil, and gas, and the 316 stainless steel body and ball are chosen for corrosion resistance. If you need a large-capacity shutoff that behaves predictably, this fits. The limitation is that it is manual only; there is no provision for remote or automatic actuation. Also, the larger connection means it belongs on bigger piping rather than small-bore lines.
NEW ASCO 8215C83 120/60 120VAC 2" NPT 2-WAY NO INDUSTRIAL SOLENOID VALVE 0-25PSI

What sets this solenoid valve apart is its normally open operation. With 120 VAC applied, the coil closes the 2-way valve, and when power is removed it springs back open. That predictable fail-open behavior is useful in low-pressure systems where you want flow to continue if power is lost. The valve is listed as new-open-box, so it comes without the original retail packaging but is still unused. The main limitation is the pressure range: it is rated at 0-25 PSI, so high-pressure lines are out of the question. The 2-inch NPT size also makes it a compact component, not a full-volume replacement for a large ball valve.
Final Choice by Use Case
Choose the SS 316 ball valve if you want a manual, corrosion-resistant shutoff for a large line. It costs less and needs no electricity.
Choose the ASCO 8215C83 if you need an electrically actuated valve for low-pressure automation. Its low-pressure rating and automated operation fit remote control and fail-open applications.