1/4 in. 2-Piece 316 Stainless Steel Full Port Ball Valve, 2000 PSI | 949171
1/4 in. 2-Piece 316 Stainless Steel Full Port Ball Valve, 2000 PSI | 949171
✓ In stock at our distribution warehouses — typically ships within 1–2 business days.
Flat-rate shipping, nationwide- Orders under $100: $9.95
- $100 – $499.99: $14.95
- Orders $500+: quoted — real freight for your order, not a flat guess
Volume order or crossing a competitor part number? Request a quote — usually answered the same business day.
The Apex Flow 1/4 in. two-piece full-port 316 stainless steel ball valve (part 949171 / 949-171) delivers unrestricted full-bore flow, quarter-turn operation, and investment-cast 316 SS (CF8M) construction rated to 2000 psi WOG. Female NPT × Female NPT ends per ANSI B2.1, PTFE seats, and an internal-entry blow-out-proof stem, pressure-tested to API 598.
Technical Specifications
| Manufacturer Part Number (MPN) | 949171 |
| Nominal Size | 1/4 in. |
| Valve Type | Two-piece full-port ball valve |
| End Connections | Female NPT × Female NPT (FPT × FPT), ANSI B2.1 |
| Pressure Rating | 2000 psi WOG |
| Pressure Test | API 598 |
| Port | Full port (full bore) |
| Operation | Quarter-turn locking handle |
| Standard | Body material CF8M (316 SS), investment cast |
Dimensions
| Bore Diameter | 0.36" |
| End-to-End Length | 2.13" |
| Height (center to top) | 2.13" |
| Handle Length | 4.33" |
| Weight | 0.64 lb |
Materials of Construction
| Body, Cap, Ball & Stem | 316 Stainless Steel (CF8M investment castings) |
| Ball Seats (×2), Body Seal, Thrust Washer & Packing | PTFE |
| Gland Nut, Handle, Washer, Nut & Lock Device | 304 Stainless Steel |
| Handle Cover | Plastic |
Performance & Testing
- Full-port bore matches pipe ID for maximum flow and near-zero pressure drop
- 2000 psi WOG — double the rating of standard 1000 psi two-piece valves
- Pressure-tested to API 598
- Internal-entry blow-out-proof stem
- Locking handle accepts a padlock for lockout/tagout
Other Sizes in This Series
2-Piece 316 Stainless Steel Full Port Ball Valve, 2000 PSI, Female NPT. Jump to another size or add it straight to your cart:
| Size | Part # | Price | Cart |
| 1/4 in. (this page) | 949171 | $30.99 | — |
| 3/8 in. | 949172 | $31.99 | Add to cart |
| 1/2 in. | 949173 | $39.99 | Add to cart |
| 3/4 in. | 949174 | $54.99 | Add to cart |
| 1 in. | 949175 | $84.99 | Add to cart |
| 1-1/4 in. | 949176 | $123.99 | Add to cart |
| 1-1/2 in. | 949177 | $184.99 | Add to cart |
| 2 in. | 949178 | $236.99 | Add to cart |
Need the standard-pressure version? This valve also comes in a 1000 PSI series in the same size.
Typical Applications
This 1/4 in. full-port 2000 psi valve suits high-pressure liquid and gas service: compressed air systems, pump discharge isolation, high-pressure wash-down, chemical transfer, and process skids where standard 1000 psi valves fall short.
Cross-References & Interchange
Midland lists no third-party interchanges for this series; it is also identified by the dash format 949-171. Replacing another brand's 2000 psi full-port stainless valve? Match nominal size, end connections, and rating for a direct fit — or send us your part number and we will confirm the interchange.
Availability
In stock — ships direct from the manufacturer, typically 1–3 business days.