Brass BSP Tee Fittings — Y-Tee & Straight Tee Water Diverter Valves, 1/4" to 1/2"
Brass BSP Tee Fittings — Y-Tee & Straight Tee Water Diverter Valves, 1/4" to 1/2"
Brass BSP Tee Fittings — Y-Tee & Straight Tee Water Diverter Valves, 1/4" to 1/2"
Brass BSP Tee Fittings — Y-Tee & Straight Tee Water Diverter Valves, 1/4" to 1/2"
Brass BSP Tee Fittings — Y-Tee & Straight Tee Water Diverter Valves, 1/4" to 1/2"
Brass BSP Tee Fittings — Y-Tee & Straight Tee Water Diverter Valves, 1/4" to 1/2"
Brass BSP Tee Fittings — Y-Tee & Straight Tee Water Diverter Valves, 1/4" to 1/2"
Brass BSP Tee Fittings — Y-Tee & Straight Tee Water Diverter Valves, 1/4" to 1/2"
Brass BSP Tee Fittings — Y-Tee & Straight Tee Water Diverter Valves, 1/4" to 1/2"
Brass BSP Tee Fittings — Y-Tee & Straight Tee Water Diverter Valves, 1/4" to 1/2"
Brass BSP Tee Fittings — Y-Tee & Straight Tee Water Diverter Valves, 1/4" to 1/2"
Brass BSP Tee Fittings — Y-Tee & Straight Tee Water Diverter Valves, 1/4" to 1/2"
Brass BSP Tee Fittings — Y-Tee & Straight Tee Water Diverter Valves, 1/4" to 1/2"
Brass BSP Tee Fittings — Y-Tee & Straight Tee Water Diverter Valves, 1/4" to 1/2"
Brass BSP Tee Fittings — Y-Tee & Straight Tee Water Diverter Valves, 1/4" to 1/2"
Brass BSP Tee Fittings — Y-Tee & Straight Tee Water Diverter Valves, 1/4" to 1/2"
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Brass BSP Tee Fittings — Y-Tee & Straight Tee Water Diverter Valves, 1/4" to 1/2"Brass BSP Tee Fittings — Y-Tee & Straight Tee Water Diverter Valves, 1/4" to 1/2"Brass BSP Tee Fittings — Y-Tee & Straight Tee Water Diverter Valves, 1/4" to 1/2"Brass BSP Tee Fittings — Y-Tee & Straight Tee Water Diverter Valves, 1/4" to 1/2"Brass BSP Tee Fittings — Y-Tee & Straight Tee Water Diverter Valves, 1/4" to 1/2"Brass BSP Tee Fittings — Y-Tee & Straight Tee Water Diverter Valves, 1/4" to 1/2"Brass BSP Tee Fittings — Y-Tee & Straight Tee Water Diverter Valves, 1/4" to 1/2"Brass BSP Tee Fittings — Y-Tee & Straight Tee Water Diverter Valves, 1/4" to 1/2"Brass BSP Tee Fittings — Y-Tee & Straight Tee Water Diverter Valves, 1/4" to 1/2"Brass BSP Tee Fittings — Y-Tee & Straight Tee Water Diverter Valves, 1/4" to 1/2"Brass BSP Tee Fittings — Y-Tee & Straight Tee Water Diverter Valves, 1/4" to 1/2"Brass BSP Tee Fittings — Y-Tee & Straight Tee Water Diverter Valves, 1/4" to 1/2"Brass BSP Tee Fittings — Y-Tee & Straight Tee Water Diverter Valves, 1/4" to 1/2"Brass BSP Tee Fittings — Y-Tee & Straight Tee Water Diverter Valves, 1/4" to 1/2"Brass BSP Tee Fittings — Y-Tee & Straight Tee Water Diverter Valves, 1/4" to 1/2"Brass BSP Tee Fittings — Y-Tee & Straight Tee Water Diverter Valves, 1/4" to 1/2"

Brass BSP Tee Fittings — Y-Tee & Straight Tee Water Diverter Valves, 1/4" to 1/2"

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By HomeDIYer®

Price:
$9.47 USD
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In stock (500 units), ready to be shipped

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Description

 

Brass BSP Tee Fittings — Reliable Water Diverter Valves for Plumbing & Irrigation

When a single water line needs to feed two directions — whether you're splitting a garden hose supply, adding a branch to a workshop air line, or building out a home irrigation system — a poorly matched fitting is the fastest way to end up with a leak. These brass BSP tee fittings are designed for DIYers, plumbers, and small contractors who need a dependable, thread-matched solution without hunting through hardware bins.

Each piece is a solid brass tee fitting with BSP (British Standard Pipe) threads, available in 1/4" (≈6.4mm bore), 3/8" (≈9.5mm bore), and 1/2" (≈12.7mm bore) nominal sizes. The lineup covers both Y-tee (wye) and straight tee body styles, with port gender combinations including all-female (F & F & F), female-male-female (F & M & F), male-female-male (M & F & M), all-male (M & M & M), and a union-center variant — sold individually or in multi-packs of 2, 5, 8, or 10 pieces.

Typical use cases include splitting cold water supply lines for dual-outlet faucets, creating branch connections in BSP-threaded irrigation manifolds, building compressed air distribution tees in workshops, and adding diverter points to boiler or heating system pipework.

🔵 Thread Standard: BSP (British Standard Pipe) — NOT compatible with NPT threads. Confirm your pipe thread standard before ordering. Available in 1/4", 3/8", and 1/2" nominal sizes.

✅ Key Features of These Brass BSP Tee Fittings

  • 🔩Solid Brass Construction — Machined from brass for durability in water, air, and low-pressure fluid systems; resists corrosion better than zinc alloy alternatives in typical plumbing environments.
  • 🔀Y-Tee & Straight Tee Options — Choose a 45° Y-tee for smoother flow diversion or a 90° straight tee for compact inline branch connections — both available in the same BSP thread sizes.
  • ⚧Multiple Port Gender Configurations — F/F/F, F/M/F, M/F/M, M/M/M, and union-center variants let you match the fitting directly to your existing pipe thread genders without adapters.
  • 📐Three BSP Sizes Covered — 1/4", 3/8", and 1/2" nominal BSP sizes cover the most common residential and light commercial plumbing and irrigation branch fitting needs.
  • 📦Flexible Quantity Packs — Order 1, 2, 5, 8, or 10 pieces per SKU — ideal for single repairs, small jobs, or stocking a van or workshop with BSP tee fittings for water diverter applications.
  • 🛠️Wrench-Flat Body Design — The fitting body is shaped to accept a standard wrench for controlled tightening, reducing the risk of over-torquing and thread damage during installation.

📐 Technical Specifications — Brass BSP Tee Fittings

Material Brass
Thread Standard BSP (British Standard Pipe)
Available Sizes 1/4" | 3/8" | 1/2" nominal BSP
Body Styles Y-Tee (wye, ~45° branch) & Straight Tee (90° branch)
Port Configurations F/F/F, F/M/F, M/F/M, M/M/M, Union-center (M/F/M)
Finish Natural brass (uncoated)
Typical Working Pressure Generally up to 150 PSI (≈10 bar) in water service — contact us to confirm for your application
Compatible Media Water, air, and compatible low-pressure fluids (confirm for chemical media)
Pack Sizes Available 1, 2, 5, 8, or 10 pieces per order
Country of Origin See variant options
Certifications Contact us to confirm
⚠️ Note: BSP threads are NOT interchangeable with NPT (American) threads. If your existing plumbing uses NPT fittings, a BSP-to-NPT adapter is required. Always use PTFE tape or thread sealant on BSP parallel threads to ensure a leak-free connection.

❓ Frequently Asked Questions

How do I choose the right tee size for my plumbing project?

Match the tee size to your existing pipe thread size. BSP sizes are measured by nominal bore, not outer diameter. For example, a 1/2" BSP tee fits pipes with a nominal bore of approximately 1/2" (≈12.7mm). When in doubt, measure the outer diameter of your pipe thread and compare to a BSP thread table. Sizes available here are 1/4", 3/8", and 1/2".

What is the pressure rating of these brass tee fittings?

Brass BSP fittings of this type are generally rated for working pressures up to 150 PSI (approximately 10 bar) in water service applications. Actual ratings can vary by wall thickness and installation conditions. Contact us to confirm if your application requires a specific pressure certification.

Can these fittings be used outdoors or in wet environments?

Brass has naturally good corrosion resistance and is typically suitable for outdoor and damp environments. In highly corrosive environments (e.g., salt air, acidic water), additional protection or stainless steel alternatives may be advisable. For standard garden, irrigation, or outdoor plumbing use, brass BSP tee fittings generally perform well.

Are these fittings compatible with NPT (American) threads?

These fittings use BSP (British Standard Pipe) threads, which are not directly compatible with NPT (National Pipe Taper) threads. BSP and NPT have different thread angles (55° vs 60°) and pitch. If your existing plumbing uses NPT threads, you will need a BSP-to-NPT adapter. Please confirm your thread standard before ordering.

What is the difference between the Y-tee and straight tee configurations?

A Y-tee (wye tee) has its branch port angled at approximately 45°, which allows for smoother flow diversion and is often used in drainage or low-turbulence flow-splitting applications. A straight tee has its branch port at 90°, which is more compact and commonly used for standard water supply line splits and diverter valve setups.

What does "F & F & F" or "M & F & M" mean in the execution options?

These designations describe the thread gender of each port on the tee fitting. F = Female (internal thread), M = Male (external thread). For example, F & F & F means all three ports have female (internal) threads, while M & F & M means the two run ports are male and the branch port is female. Choose the configuration that matches the thread gender of your existing pipes and valves.

Do I need thread sealant (PTFE tape) when installing these fittings?

Yes. BSP parallel threads (BSPP) generally require PTFE tape or thread sealant compound to achieve a leak-free seal, as the seal is made at the thread face rather than a taper. Apply 2–3 wraps of PTFE tape in the direction of the thread before assembly. Taper BSP threads (BSPT) can self-seal but still benefit from PTFE tape for added security.

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

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