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home > 1/2" Brass 3-Way Ball Valve — Shut-Off Pipe Fitting with M1/2" & Hose Barb Ends > 1/2" Brass 3-Way Ball Valve — Shut-Off Pipe Fitting with M1/2" & Hose Barb Ends

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1/2" Brass 3-Way Ball Valve — Shut-Off Pipe Fitting with M1/2" & Hose Barb Ends1 2" Brass 3 Way Ball Valve Reliable Shut Off & Flow Diversion for Gas, Water & Air Lines When a single shutoff valve just isn't enough whether you're splitting a gas supply to two appliances, diverting compressed air between tools, or managing water flow across multiple lines a poorly chosen fitting can mean leaks, pressure loss, or a frustrating reinstall. DIYers, plumbers, and HVAC technicians who work with 1 2" pipe systems need a 3 way ball valve

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1/2" Brass 3-Way Ball Valve — Reliable Shut-Off & Flow Diversion for Gas, Water & Air Lines

When a single shutoff valve just isn't enough — whether you're splitting a gas supply to two appliances, diverting compressed air between tools, or managing water flow across multiple lines — a poorly chosen fitting can mean leaks, pressure loss, or a frustrating reinstall. DIYers, plumbers, and HVAC technicians who work with 1/2" pipe systems need a 3-way ball valve that handles the job cleanly the first time.

This 1/2" brass 3-way ball valve is available in four port configurations: all three ports as M1/2" male threaded ends, mixed M1/2" threaded and hose barb combinations, or all three as hose barb ends — so you can match your existing lines without adapters. The valve body is machined from solid brass for durability and corrosion resistance. Available in packs of 1, 2, or 3 to cover single repairs or multi-point installations.

Typical use cases include splitting a 1/2" natural gas or propane supply line between two appliances, diverting compressed air in workshop pneumatic systems, and managing water distribution in irrigation or plumbing manifolds — all scenarios where a compact inline 3-way shut-off valve for 1/2" pipe saves time and eliminates extra tee fittings.

🔗 Compatibility: Designed for standard 1/2" pipe systems. M1/2" ports are generally compatible with 1/2" NPT threaded fittings. Hose barb ends suit push-on flexible hose connections. Verify your thread standard and hose inner diameter before ordering.

✅ Key Features of These 1/2" Brass 3-Way Ball Valves

🔩Solid Brass Construction — Machined brass body resists corrosion and handles the thermal cycling common in gas line shut-off valve applications.
🔀True 3-Way Flow Control — Single-handle operation lets you divert, mix, or shut off flow across three ports — replacing a tee fitting plus two separate valves in one compact unit.
🔧Multiple Port Configurations — Choose all M1/2" threaded ends, mixed threaded and hose barb, or all hose barb ends to match your existing 1/2" pipe or hose fittings without extra adapters.
💧Versatile Media Compatibility — Suitable for natural gas, propane, compressed air, and water lines — a practical inline ball valve for 1/2" gas and water systems alike.
⚡Quarter-Turn Operation — 90° lever handle provides fast, positive shutoff with a clear open/closed visual indicator — no guessing whether the valve is open.
📦Multi-Pack Options — Available in 1, 2, or 3-piece packs so you can stock up for multi-point installations or keep a spare on hand for maintenance.

📐 Technical Specifications — 1/2" 3-Way Brass Ball Valve

Valve Type	3-Way Ball Valve (T-port or L-port style)
Nominal Size	1/2" (DN15)
Body Material	Brass
Port Configurations	M1/2" + M1/2" + M1/2" / M1/2" + M1/2" + Hose Barb / Hose Barb + Hose Barb + Hose Barb / Hose Barb + Hose Barb
Thread Standard	M1/2" ports — typically 1/2" NPT; confirm with your system
Operation	Quarter-turn (90°) lever handle
Working Pressure	See variant options — verify with your application requirements
Compatible Media	Natural gas, propane, compressed air, water (non-corrosive fluids)
Finish	Natural brass
Pack Quantity	1 pcs / 2 pcs / 3 pcs (select above)
Country of Origin	Contact us to confirm

⚠️ Note: Always verify working pressure rating and thread compatibility with your specific gas or plumbing system before installation. For gas line applications, follow all local codes and regulations.

❓ Frequently Asked Questions

What does the size option mean, and how do I choose the right configuration?

Each size option describes the port configuration of the 3-way valve. "M1&2"" refers to a 1/2" male threaded (NPT-style) port, while "Hose Barb" refers to a barbed end for push-on hose connections. Choose the configuration that matches your existing pipe or hose fittings. For example, if all three lines are threaded, select M1/2" + M1/2" + M1/2". If one line uses a flexible hose, choose a mixed configuration.

What is the working pressure rating of this ball valve?

Brass 3-way ball valves of this type are generally rated for working pressures up to 200–600 PSI depending on the application and temperature. For gas line use, always verify the pressure rating meets your local code requirements before installation. Contact us to confirm the exact rating for your intended use.

Can this valve be used outdoors or in humid environments?

Brass is naturally corrosion-resistant and performs well in most indoor and sheltered outdoor environments. For fully exposed outdoor installations or marine environments, additional protective measures — such as a weatherproof enclosure — are typically recommended to extend service life.

Is this valve compatible with standard NPT threads?

The M1/2" port style is generally compatible with standard 1/2" NPT (National Pipe Taper) threaded fittings commonly used in US plumbing and gas systems. Always verify thread type and apply PTFE tape or appropriate pipe thread sealant before installation to ensure a leak-free connection.

What fluids or gases is this valve suitable for?

This brass ball valve is typically suitable for natural gas, propane, compressed air, water, and other non-corrosive fluids. It is not recommended for use with strong acids, high-concentration chlorinated water, or ammonia-based fluids, as these can degrade brass over time.

How do I know if I need a 3-way valve instead of a standard 2-way shutoff?

A 3-way ball valve lets you divert or mix flow between three ports, making it ideal when you need to switch a single supply line between two outlets, or combine two inlet lines into one. If you only need a simple on/off shutoff on a single line, a 2-way valve is sufficient. This 3-way design replaces a tee fitting plus two separate shutoff valves in one compact unit.

Does the valve come with PTFE tape or thread sealant?

PTFE tape or thread sealant is not included. For threaded (M1/2") connections, applying PTFE tape or an appropriate pipe thread sealant before installation is generally recommended to ensure a leak-free seal. Hose barb connections typically use a hose clamp for a secure fit.

🛒 Select your size configuration and pack quantity above, then add to cart — ships from our US warehouse.

1/2" Brass 3-Way Ball Valve — Shut-Off Pipe Fitting with M1/2" & Hose Barb Ends

Name: 1/2" Brass 3-Way Ball Valve — Shut-Off Pipe Fitting with M1/2" & Hose Barb Ends
Brand: leseauxdelinval.fr
SKU: 54905133974
Price: 31.16 USD
Availability: InStock
Rating: 4.0081 (333 reviews)