Fluid Tech owns its own brand — IF — for grooved couplings and grooved fittings, a core part of its fire protection range. Grooved welded branch outlets and profile branches are available in carbon steel.
The grooved connection is how a fire line gets joined without threading or welding every joint. Here is what the range covers and how to specify it.
Each pipe end is milled with a groove near the tip. A coupling wraps the two ends and its internal gasket seals the joint while the bolts clamp it down. The connection is made without heat, which is why it is fast on a large branch line and why it suits retrofits where the existing pipe cannot be re-threaded at every fitting.
The range covers the straight grooved couplings that join run to run, the grooved fittings that change direction or size, and the grooved welded branch outlets and profile branches in carbon steel. The branch outlet is the joint where a branch line leaves the main, and the welded profile is the shape the field welder runs against.
Fluid Tech owns its own brand, IF, for grooved couplings and grooved fittings. It is the line we specify and ship for the grooved sections of a fire system, so the connection hardware and the pipe it joins come from one accountable source. State the size, the end form and whether the joint is a coupling, a fitting or a branch outlet, and the order lands with the rest of the line.
No. A grooved joint is a bolted coupling over milled pipe ends with an internal gasket; a threaded joint screws two tapered or parallel threads together. Grooved is made without heat and is the faster of the two on long branch runs.
IF is our own brand for grooved couplings and grooved fittings, a core part of the fire protection range.
The grooved welded branch outlets and profile branches are supplied in carbon steel for the field weld where a branch leaves the main.
Buyers comparing grooved coupling suppliers usually start from the joint: does the coupling seal without heat, does the gasket hold at the system pressure, and does the bolted clamp land square on the pipe? The IF line is built around those answers, and because it is our own brand, the spec sheet and the part in the crate come from the same source.
The grooved couplings and fittings ship from the Tianjin warehouse in the northern logistics center. When you buy from the factory side, the size, the end form and the finish are confirmed once, against the drawing, instead of being re-quoted through a middleman who adds a margin and a second set of drawings.
A grooved section of a fire system needs more than straight couplings: fittings to change direction or size, and the welded branch outlets where the branch leaves the main. Order them together and the groove standard, the gasket and the hardware all come from one range.
Selection guides and field notes on fire protection pipe, fittings and supports.
A general ERW pipe and a fire-rated one can look identical in the yard. These five questions are how you tell the difference before you pay.
Read →2026-09-23Two tapered thread systems, one very common mistake. Here is how to tell BSPT from NPT before it costs you a fitting.
Read →Send your bill of materials or drawing — we confirm spec, cert and lead time, then ship the full package.