Galvanized Tees

A galvanized tee is a zinc-coated malleable cast iron fitting with three female-threaded ends, used to take a third direction of the same size from a water line. The coating protects the inner surface in contact with water at the branch point against rust.
Floor and apartment water distribution, sprinkler branches, irrigation valve outlets and tank connections are typical uses of galvanized tees. They are supplied in 10 sizes from 3/8″ to 4″.
Main Applications
- Floor and apartment water branches from risers
- Branch outlets from sprinkler mains
- Valve and drip line branches in irrigation lines
- Distribution at water tank and booster set outlets
- Fire hose cabinet supply lines
- Sampling and drain tappings in process water lines
Technical Data
| Fitting type | Equal tee, all three ends the same size |
|---|---|
| Product standard | TS EN 10242, design symbol A (manufacturer information) |
| Material | Malleable cast iron (depending on model) |
| Coating | Hot-dip galvanized, inside and outside |
| Coating mass | Average at least 500 g/m² (sales sheet information) |
| Thread | ISO 7-1 Rp parallel female thread on all three ends |
| Sizes | 3/8″, 1/2″, 3/4″, 1″, 1 1/4″, 1 1/2″, 2″, 2 1/2″, 3″, 4″ (product range) |
| Permissible pressure | 25 bar, −20 … +120 °C (EN 10242, design A) |
| Leak test | At least 5 bar air or 20 bar water (sales sheet information) |
| Connected pipe | Threaded galvanized steel pipe |
| Branch of a different size | With a galvanized reducing tee |
| Installation | Thread sealing tape, hemp or anaerobic sealant |
Material Options
| Part | Galvanized malleable iron | Black malleable iron | Stainless steel casting |
|---|---|---|---|
| Body | Malleable iron EN-GJMB-350-10 (depending on model) | Blackheart malleable cast iron B 350-10 | Investment casting 1.4408 (AISI 316 equivalent), depending on model |
| Surface | Hot-dip zinc | Black, uncoated | Stainless, uncoated |
| Thread | ISO 7-1 Rp female thread | ISO 7-1 Rp female thread | Depending on model |
| Pressure rating | 25 bar −20…120 °C (EN 10242) | 25 bar −20…120 °C, 20 bar 300 °C (EN 10242) | Depending on model |
| Suitable media | Cold domestic water, fire and irrigation water | Closed heating water, gas, compressed air | Corrosive media and media requiring hygiene |
Which material? If the branch carries fresh water a galvanized tee gives the same protection as the pipe; black tees are used in closed heating circuits and stainless tees in food and chemical lines.
Advantages
Protection Against Rust
- The zinc coating protects the inner surface of the branch
Three Directions in One Body
- Branching from the main line without extra fittings
Sprinkler Compatible
- Same surface as galvanized pipe and sprinkler lines
Wide Size Range
- 10 sizes from 3/8″ to 4″
Construction and Design Features
- Three Rp female-threaded ends; branch perpendicular to the main line
- Inner and outer surfaces hot-dip zinc coated
- One-piece cast body
- TS EN 10242 design A
Send the galvanized tee size and quantity; we will also suggest reducing tee options for branches of a different size.
How to Choose?
- Measure the main line sizeAll three ends of an equal tee match the main pipe size.
- Check the branchIf the branch is smaller, use a reducing tee or a tee plus reducer.
- Confirm the mediumChoose galvanized tees for fresh water and fire lines, black tees for closed heating.
- Compare the pressureMake sure the highest pressure of the line stays below the 25 bar limit.
Complementary Products
Why ORFA?
Other Galvanized Fittings

Galvanized Wide-Radius Elbows
Galvanized wide-radius elbows are fittings that change direction with a gentle bend on threaded galvanized pipelines.
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Galvanized Crossover Bends
Galvanized crossover bends are curved fittings used to pass over another pipe on threaded galvanized lines.
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Galvanized Unions
Galvanized unions are fittings that join two threaded galvanized pipes in a way that can be taken apart again.
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Galvanized Elbows
Galvanized elbows are zinc-coated threaded fittings that change direction by 90 degrees on galvanized pipelines.
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Galvanized Reducing Tees
Galvanized reducing tees are fittings used to take a smaller branch off the main run on threaded galvanized lines.
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Galvanized Conical Unions
Galvanized conical unions provide a tight, removable connection on threaded galvanized pipes through a conical seat.
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Galvanized Plugs and Caps
Galvanized plugs and caps are used to close the ends of threaded galvanized pipes and fittings.
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Galvanized Crosses
Galvanized crosses are fittings that split flow in four directions on threaded galvanized pipelines.
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Galvanized Street Elbows
Galvanized street elbows have one female and one male threaded end and change direction on galvanized lines without an extra nipple.
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Galvanized Reducing Sockets
Galvanized reducing sockets are female threaded fittings that join two galvanized pipes of different sizes.
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Galvanized Sockets
Galvanized sockets are female threaded fittings that join two galvanized pipes of the same size in a straight line.
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Galvanized Nipples
Galvanized nipples are short galvanized pieces with male threads on both ends, used to connect two female threaded fittings.
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Galvanized Reducing Bushes
Galvanized reducing bushes are fittings with male and female threads used to change pipe size on threaded galvanized lines.
Details →Get a quote for your project
Our sales team will prepare the best solution for your needs.
