GB-2
D
GB
F
NL
I
E
Checking the usage
Gas filter GFK is used for filtration of the fuel gas
and combustion air supply to all gas consuming
appliances.
This function is only guaranteed when used within the
specified limits – see page 3 (Technical data). Any
other use is considered as non-compliant.
Type code
Code
Description
GFK
Gas filter
15 – 50
Nominal size
T
T-product
R
F
N
A
Rp internal thread
Flanged connection to ISO 7005
NPT internal thread
ANSI flange
10
40
60
Max. inlet pressure p
u
max
1 bar (14.5 psig)
4 bar (58 psig)
6 bar (87 psig)
-
-6
Screw plug at the inlet
and outlet
Pressure test point at the inlet
and outlet
Part designations
GFK..F
GFK..R
1
1
3
2
2
1
Housing cover
Lower housing section
Pressure test point
Type label
▷
Max. inlet pressure: see type label.
D-49018 Osnabrück, Germany
GFK
p
u max
Installation
CAUTION
Dropping the device can cause permanent dam-
age. In this event, replace the entire device and
associated modules before use.
▷
Installation position: any, in horizontal or verti-
cal pipework – recommended: housing cover
to the side.
▷
The housing must not be in contact with masonry,
minimum distance 20 mm (0.79").
> 20 mm
▷
We recommend applying a protective coating
when installing in the open air.
GFK..R
2
3
1
4
GFK..F
2
3
1
Tightness test
1
To be able to check the tightness, shut off the
downstream pipeline close to the gas filter.
N
2
≤
1,2 x p
u max
3
2
4
Tightness OK: open the pipeline.
▷
Pipeline leaking: replace the seal.
