
REC FP 75 Plastic Flange
Plastic flange for connecting flexible ducts to manifolds
Ensures airtight and quick connection of flexible ducts to LDL distribution boxes or LFT manifolds. Made of durable plastic, designed for ⌀75 and ⌀90 mm systems.
Why choose REC FP flanges?
These connectors are an essential element of the REC FLEX system, ensuring simple and reliable fixation of flexible ducts in distribution boxes and manifolds. They reduce installation time and allow for easy system modification without additional tools.
Airtightness and reliability
By using REC FP flanges together with special RE sealing rings, the highest air tightness class is achieved. This ensures that the ventilation system operates efficiently, without unnecessary pressure loss or noise.
Compatible components
These flanges are fully compatible with REC LDL-P plastic boxes, LDL metal boxes, and LFT air distribution manifolds. They are designed for standard ⌀75 mm and ⌀90 mm flexible ducts.
REC FP technical specifications
Key flange data ensuring compatibility with REC FLEX ducts.
| Parameter | Value |
|---|---|
| Material | Plastic |
| Air direction | Bidirectional (supply/extract) |
| Diameter (connection) | O75 mm / O90 mm |
| Purpose | LDL box and LFT manifold connector |
Variant comparison
Choose the correct flange size based on the diameter of the flexible ducts used.
| Parameter | 75 mm | 90 mm |
|---|---|---|
| Compatible duct | REC FLEX 75 | REC FLEX 90 |
REC FP flanges are mounted in the designated openings of distribution boxes or manifolds. It is a quick and easy process that does not require complex fasteners.
Preparation
Make sure the manifold or box opening is clean and free of deformation. Select the flange size that matches the diameter of the flexible duct.
Fixation in the manifold
Insert the flange into the opening and press firmly until it clicks into place. A correctly inserted flange must remain stable and not move.
Duct connection
Place an RE sealing ring on the end of the flexible duct. Push the duct into the flange until it stops. The sealing ring ensures the required level of tightness between the duct and the flange.
Verification
Before installing ceilings or pouring floors, check all connections to see if they are tight and if the duct has not accidentally pulled out.

Assemble your distribution system
Make sure to choose REC FLEX flexible ducts, LDL distribution boxes, and RE sealing rings to complete your system setup.
Frequently Asked Questions
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