Rohrzubehör 
Standard 
Zink, Aluminium blank
Größen 80, 87, 100 mm - Zink

The rainwater pipe flap’s pleasing appearance and reliable functionality make it a compelling choice: The water is guided safely and surely into the rain barrel. The integrated stainless steel sieve prevents contamination from getting into the downpipe. It’s easy to remove and clean.... more

Rainwater pipe flap with stainless steel sieve

Nominal size
76, 80, 87, 100, 120
Materials

Not available in all sizes

Rohrzubehör 
Standard 
Zink, Aluminium blank
Größen 80, 87, 100 mm - Zink

The rainwater pipe flap’s pleasing appearance and reliable functionality make it a compelling choice: The water is guided safely and surely into the rain barrel.... more

Rainwater pipe flap

Nominal size
60, 76, 80, 87, 100, 120
Materials

Not available in all sizes

Rohrzubehör  Standard  Zink - Zink

The rainwater pipe flap make it easier to collect water. As soon as the rain barrel is full, the flap automatically closes. This can prevent the barrel from running over.... more

Rainwater pipe flap ball - automatic

Nominal size
76, 80, 87, 100, 120
Materials

Not available in all sizes

Rohrzubehör
Standard
Zink
Nenngröße: 80x80 mm, 100x100 mm - Zink

The rainwater pipe flap’s pleasing appearance and reliable functionality make it a compelling choice: The water is guided safely and surely into the rain barrel.... more

Rainwater pipe flap square

Nominal size
80/80, 100/100
Materials

Not available in all sizes

Rainwater pipe flaps from GRÖMO – Attention: detour.

The right flap for every requirement.

With a rainwater pipe flap, also called a downpipe flap or rain pipe flap, can divert rainwater out of the downpipe and into a rain barrel when opened. If the flap is closed, the water continues to flow towards the sewer system. Rainwater pipe flaps from GRÖMO are available in different sizes - matching the size of the downpipe, of course. The flap can also be adjusted to the rest of the system depending on the material of the rain gutter and downpipe. Whether zinc, pre-weathered zinc, copper, galvanized steel, Uginox Patina K41, stainless steel, or aluminum, everything is possible in terms of material. The rainwater flap can also be fitted with a built-in sieve, optionally, which allows the accumulating dirt to be filtered in the sieve when the rain barrel is full, and then removed when it opens. You can choose between the “normal” design, the flap with ball, and the designer rainwater pipe flap.

 

Two ways lead into the pipe.

The flap is relatively easy and quick to install. There are two options for installation:

  1.  Installation done in parallel with attaching a new drainpipe. In this scenario, the downpipe is prepared so that the flap, as described in the installation instructions, can be stuck on the right spot in the rainwater downpipe.
     
  2.  The rainwater pipe flap is retrofitted in the existing downpipe. A piece is removed from the downpipe for this scenario. The flap is easily inserted into this hole. Due to the wider internal diameter of the flap at the upper end and the smaller diameter on the lower side, the overlaps are designed so that they are stuck in the direction of flow of the rainwater.