Puddle Flange RONDO RO 10
for round wire 8 + 10 mm

article number 090890

Puddle Flange Rondo

test of durability Water pressure test Radontight

RONDO sealing collars securely seal pipes and cables made of plastic, steel, fibre cement and vitrified
clay against a water column of up to 50 metres (Standard) or 80 metres (Protect). The bushings in
concrete foundations and walls are securely sealed against groundwater and pressurised water.

available in large quantities

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article number:
customs tariff number:
packing unit:
sales quantity unit:
1 Stk
weight per:
pc = 0.13 kg

TPE mixture

suitable for outer diameter:

 8 - 10 mm  round conductors for lightning protection


carton /100 pcs


approx. 1,17 kg/dm³


approx. 55 ± 5 Shore A

tensile strength:

 approx. 6,5 N/mm²

elongation at break:

approx. 380 %

service temperature range:

approx. -30° C bis +70° C

test certificate / approvals:

 Test report
 MFPA Leipzig
 No.: PB 5.1 / 13-164

 Slurry/liquid manure/silage effluent test
 (RO 10 – RO400)
 MPA Braunschweig
 (1200/442/15e) – Pan of 28.10.2015

 Alkali resistance (RO 10 – RO 400)
 MPA Braunschweig
 (1200/642/15b) – Pan of 26.01.2016

 Radon tightness (RO 10 - RO 400 )
 Dr. Joachim Kemski
 2016090901d v. 19.09.2016



  •  Diluted acids
  •  Diluted alkalis
  •  Oil and bitumen
  •  Methane gas
  •  Ozone

 Further resistances are available on request

Substances according to the SVHC list contained or proportional weight ≥0.1%:


conform to REACH Guideline:


5 bar
Store in a dry place and out of direct sunlight
Can be disposed of at municipal waste landfill sites, taking into account the local waste disposal regulations.

The RONDO Sealing collar is supplied ready-to-install with two stainless-steel clamping straps for fixing.

Soiled pipe walls must be cleaned prior to attaching the RONDO Sealing collar.
The RONDO Sealing collar is even easier to install if placed in hot water beforehand (10 minutes).
Push the RONDO Sealing collar onto the end of the pipe and slide along before the pipe is installed.

The RONDO Sealing collar should be mounted centrally on the wall/floor plate.
Always ensure a minimum concrete covering of 5 cm.
The distance to the surrounding reinforcement or other components must be at least 3 cm.

Use a screwdriver to tighten the clamping straps sufficiently to prevent the RONDO Sealing collar from shifting during concreting.
During concreting, ensure thorough sealing around the RONDO Sealing collar in order to prevent defects/rock pockets.

Der RONDO Sealing collar is placed in center of the concrete element.
It prevents liquid and gas from penetrating the structure along the pipe's outer wall.

RONDO STANDARD in floor slab

Download DWG

Download PDF

RONDO STANDARD in in-situ concrete

Download DWG

Download PDF

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