1/2" NPT 3-Way High-Pressure Steel Block Valve | GE3L12NPT
1/2" NPT 3-Way High-Pressure Steel Block Valve | GE3L12NPT
✓ In stock at the manufacturer — 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 1/2" NPT three-way high-pressure steel block valve (part GE3L12NPT) routes flow through an L-pattern ball for diverting or selecting service at working pressures to 5145 psi. Zinc-chromate-plated steel body, ball, and stem; Buna-N O-rings; Delrin seats; full-port bore.
Technical Specifications
| Manufacturer Part Number (MPN) | GE3L12NPT |
| Size / Thread | 1/2" NPT Female NPT × 3 |
| Valve Type | Three-way ball valve, steel block body |
| Flow Pattern | L-pattern (divert/select between two outlets) |
| Working Pressure | 5145 psi |
| Temperature Range | −22°F to 212°F |
| Port | Full port |
| Operation | Quarter-turn lever |
Materials of Construction
| Body, Ball & Stem | Steel, zinc chromate plated |
| O-Rings | Buna-N (fluoroelastomer on request from the manufacturer) |
| Ball Seats | Delrin (acetal) |
Key Features
- L-pattern three-way porting — divert flow between two outlets or select between two inlets with one quarter-turn
- High-pressure steel block construction rated 5145 psi
- Delrin (acetal) ball seats
- Full-port bore — minimal pressure drop
Other Sizes in This Series
3-Way High-Pressure Steel Block Valve, NPT ends. Jump to another size:
| Size | Part # |
| 1/4" NPT | GE3L14NPT |
| 3/8" NPT | GE3L38NPT |
| 3/8" NPT (Viton) | GE3L38NPTV |
| 1/2" NPT (this page) | GE3L12NPT |
| 3/4" NPT | GE3L34NPT |
| 1" NPT | GE3L1NPT |
| 1-1/4" NPT | GE3L114TNPT |
| 1-1/2" NPT | GE3L112TNPT |
| 2" NPT | GE3L2TNPT |
Plumbing into SAE O-ring ports? See the SAE thread versions in our 3-Way Ball Valves collection.
Typical Applications
An L-pattern 3-way ball valve connects the common port to either outlet with one quarter-turn. Media, service and application suitability are not published by the manufacturer for this valve. Tell us your fluid, temperature and working pressure and we will confirm suitability before you order.
Cross-References & Interchange
Replacing another brand's 1/2" NPT three-way block valve? Match thread type, flow pattern (L-port), and pressure class — or send us your part number and we will confirm the interchange.