Threaded Mechanical Tees
A threaded mechanical tee is a branch fitting clamped over a hole in the main pipe, with a female threaded outlet. A sprinkler nipple, threaded valve or small threaded pipe is connected to the outlet directly.
The store offers 33 combinations of 2″–8″ mains and 1″–4″ threaded outlets. It is used to step down from grooved mains to threaded sprinkler arms, drain lines and gauge connections.
Main Applications
- Grooved mains to threaded sprinkler arms
- Drain and test valve connections
- Pressure gauge and flow switch points
- Small extra outlets on existing lines
Technical Data
| Type | Mechanical tee, female threaded outlet |
|---|---|
| Main | 2″, 2½”, 3″, 4″, 5″, 6″, 8″ (product range) |
| Outlet | 1″, 1¼”, 1½”, 2″, 2½”, 3″, 4″ female thread (by main size) |
| Installation | Clamped over the hole with bolts |
| Housing | Ductile iron GGG 40.3 (manufacturer data) |
| Gasket | EPDM around the hole (manufacturer data) |
| Bolts and nuts | Galvanized carbon steel (manufacturer data) |
| Thread standard | By model (BSPT or NPT) |
| Working pressure | By model and pipe wall thickness |
Material Options
| Part | Threaded mechanical tee |
|---|---|
| Housing | Ductile iron GGG 40.3, two pieces |
| Gasket | EPDM (hole gasket) |
| Bolts and nuts | Galvanized carbon steel |
| Outlet | Female thread |
Which material? The outlet thread standard must match the sprinkler nipple or valve to be connected; use a suitable sealing material on the threaded joint.
Advantages
Direct Threaded Outlet
- No extra adapter needed
No Line Cutting
- Installed over a drilled hole
Widest Choice
- 33 size combinations
Multi-Purpose
- Sprinklers, drains, gauges
Construction and Design Features
- Two-piece cast clamp housing
- Female threaded outlet on the upper housing
- EPDM gasket seated on the hole edge
- Clamping with galvanized bolts and nuts
Send the main size and threaded outlet size; we will confirm the thread standard and quote.
How to Choose?
- Define the mainNote the nominal size of the main that will be drilled.
- Choose the threaded outletWrite the size of the nipple or valve to be connected.
- Check the thread standardConfirm BSPT or NPT compatibility.
- Apply the hole sizeUse the hole diameter that suits the outlet.
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Why ORFA?
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Our sales team will prepare the best solution for your needs.