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Milwaukee Valve
Milwaukee Valve 1140 1/4 Gate Valve Class 150 FNPT
Bronze gate valve handles gas, oil or water at 300 psi with a 5.6 Cv flow coefficient
- Size1/4"
- TypeOther
- Reliable shut-off for gas oil and water with bronze body and solid wedge
- Handles up to 300 psi operating pressure and 150 psi steam rating
- Non-rising bronze stem with screw-in bonnet simplifies maintenance in tight spaces
- Female NPT connection fits standard 1/4 inch piping without adapters
- Flow coefficient of 5.6 Cv delivers efficient flow control for small-bore systems
1/4-inch bronze gate valve
The Milwaukee Valve 1140 is a Class 150 gate valve with a 1/4-inch female NPT connection. Its bronze body, bonnet, stem, wedge and seat suit gas, oil and water media. A non-rising stem and wheel handle provide manual operation in residential or light-commercial plumbing.
300 psi operating limit
The valve withstands 300 psi at operating temperature and 150 psi for steam service. Its 5.6 Cv coefficient indicates flow capacity through the 1/4-inch port. The screw-in bonnet and solid bronze wedge seal metal-to-metal without elastomers that could degrade.
Replaces worn bronze gate valves
Use this valve when an existing 1/4-inch bronze gate valve leaks or seizes. The jump is worth it if the system pressure stays within 300 psi and the media is compatible with bronze. It does not suit applications needing a rising stem, larger ports or pressure ratings above Class 150.
Highlights
- Reliable shut-off for gas oil and water with bronze body and solid wedge
- Handles up to 300 psi operating pressure and 150 psi steam rating
- Non-rising bronze stem with screw-in bonnet simplifies maintenance in tight spaces
- Female NPT connection fits standard 1/4 inch piping without adapters
- Flow coefficient of 5.6 Cv delivers efficient flow control for small-bore systems
Specifications
| Brand | MILWAUKEE VALVE |
|---|---|
| Size | 1/4" |
| Type | Other |
Questions about this item
Which gate-valve size and pressure class should I select for a 1/4-inch line rated to 150 psi steam?
The 1140 model is a 1/4-inch bronze gate valve rated Class 150 with a 150 psi steam limit and 300 psi cold working pressure, matching that requirement exactly.
What does the 5.6 Cv figure mean for actual flow through this valve?
A Cv of 5.6 indicates the valve will pass 5.6 US gallons per minute of water with a 1 psi pressure drop, giving a clear baseline for sizing pumps or piping.
How does the FNPT connection affect installation and pressure handling?
The female NPT threads accept a 1/4-inch male pipe end directly, and the bronze body with screw-in bonnet is rated for 300 psi non-shock cold service and 150 psi saturated steam.
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