Grooved Tee
Equal grooved tee fitting for three-way branch connections in fire protection piping grids.
Tyco make, supplied by De’s Technico. UL Listed under the Tyco Fire Products listing. FM Approved under the Tyco Fire Products approval.
At a glance
- Make
- Tyco
- Material
- Ductile iron, ASTM A536
- Type
- Equal tee
- Size range
- 25 to 300 mm
- Ends
- Grooved, all three
Specification
| Body Material | Ductile Iron ASTM A536 |
|---|---|
| Type | Equal tee |
| Size Range | 25mm to 300mm |
| End Connection | Grooved all three ends |
Construction & operation
An equal grooved tee takes a branch the same size as the run, at right angles to it.
How a grooved joint works
Each end of the fitting carries a groove. It is joined to grooved pipe or another fitting with a grooved coupling: two housing segments bolted around a gasket, with keys on the housings that engage the grooves. Line pressure presses the gasket against the pipe, so the seal tightens as pressure rises.
Joints are made without welding or threading on site, and a section can be taken apart for maintenance and put back without cutting.
Installation
- Check that pipe ends and grooves are clean, undamaged and to the coupling maker’s groove dimensions.
- Lubricate the gasket with a lubricant compatible with the gasket material, and seat it over both ends.
- Fit the housings with the keys in the grooves, and tighten the nuts evenly and alternately to the coupling maker’s instructions.
- Support the pipework so the fitting carries no load it was not designed for.
Approvals
UL Listed — Tyco (Grinnell G-Fire) Grooved Fittings
Tyco Fire Products listing · data sheet TFP1815Grooved elbows, tees, crosses and reducers. UL and ULC Listed (Tyco data sheet TFP1815).
FM Approved — Tyco (Grinnell G-Fire) Grooved Fittings
Tyco Fire Products approval · data sheet TFP1815Tyco (Grinnell G-Fire) Grooved Fittings. FM Approved (Tyco data sheet TFP1815).
Where it is used
Part of these fire fighting solutions
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