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2004 Oventrop

1

Technical information

Heating oil deaerator

“Toc-Uno-N”

The Oventrop Quality Management
System is certified to DIN-EN-ISO 9001 

View burner side:

oventrop

Toc-Uno-N“

Alkohol oder lösungsmittelhaltige Reiniger nicht benutzen!
Do not use alcool or detergents containing solvents!
Ne pas utiliser de l'alcool ou des détergents contentant
des solvants!

Einbaudatum:
Date of installation:
Date de montage:

F.W. OVENTROP
GmbH & Co. KG
Paul-Oventrop-Str. 1
D-59939 Olsberg

Rücklauf
Return
Retour

Vorlauf
Supply
Aller

Typ: 214 29
TÜV geprüft

Return
from
burner

Supply 
to
burner

Fixing plate
right or left

From tank

Tender specification:

Oventrop heating oil deaerator “Toc-Uno-N” for use in one
pipe systems with return flow feed (suction system) for auto-
matic dearation of heating oil. Body of deaerator made of
metal, with wall bracket. Float case made of transparent 
plastic for function control. Connection for suction pipe to the
tank 

1

4

” female thread. Connection to burner 

1

4

” female thread

or 

3

8

” male thread with inner taper for hose connection.

Item no. 214 29 51
Inlet port (tank side) 

1

4

” female thread

Outlet port (burner side) 

3

8

” male thread with inner taper for

hose connection
Accessories: Flexible hose 300 mm, one port 

1

4

” male thread,

one port with collar nut 

3

8

” with seal for the connection to a

heating oil filter with male thread 

3

8

” on burner side

Item no. 214 29 01
Inlet and outlet port 

1

4

” female thread without accessories

Application:

Oventrop heating oil deaerator for use in heating oil 
installations (suction systems) which are operated as one pipe
systems with return flow feed. A heating oil filter with isolation
has to be installed in front of the “Toc-Uno-N”. A return pipe
back to the tank is no longer required. The “Toc-Uno-N” 
automatically deaerates the heating oil in heating oil 
installations.

Technical data:

Connections
Tank side:

1

4

” female thread

Burner side:

3

8

” male thread with taper for

burner hoses or 

1

4

” female thread

Fluid:

Heating oil type EL according to
DIN 51603-1 (09.2003)

Max. nozzle capacity:

110 l/h

Max. return flow of
heating oil:

120 l/h

Dearation capacity:

min. of 6 l/h air or gas emissions

Installation position:

vertical, deaerator cap pointing
upwards

Max. ambient temperature: 60°C*
Max. working temperature: 60°C*
Max. working pressure:

0.7 bar corresponding to a static
column of oil of 8 m for tanks
located at a higher level

Max. suction pressure:

-0.5 bar

Max. test pressure:

6 bar

Dimensions [mm]:

107 x 97 x 133

(L x D x H)

with female thread:
95 x 97 x 133

TÜV tested:

TÜV Rhineland, No.: S137 2004 T1

* According to DIN 4755, the max. admissible temperature of 

heating oil in heating oil installations is 40 °C

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