Description
The Midland Industries 940171 is a 1/4-inch forged brass full-port ball valve with 1/4-inch Female NPT inlet and outlet. Rated 600 WOG (water-oil-gas) and listed by CSA, UL, and FM, the valve drops into commercial plumbing, fuel-oil, gas-line, and industrial process pipework as an inline shutoff.
Specifications
| Manufacturer | Midland Industries |
|---|---|
| Part Number | 940171 |
| Part Type | Full-Port Ball Valve (forged) |
| Inlet / Outlet | 1/4 in Female NPT × 1/4 in Female NPT |
| Pressure Rating | 600 WOG |
| Body | Forged brass |
| Ball | Chrome-plated brass, full port |
| Handle | Lever |
| Approvals | CSA, UL, FM |
Applications
Typical installations for the 1/4 in 600 WOG full-port ball valve include:
- Commercial plumbing branch shutoffs
- Fuel-oil tank and supply line isolation
- Gas-line shutoffs (CSA / UL listed)
- Compressed-air and instrument-air drops
- Industrial process and fluid-handling loops
Verify thread size, media compatibility, and applicable code requirements before installation. Use thread sealant rated for the service media on NPT connections.









