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Connecting a flexible jointless stainless steel pipe to a
GB
threaded attachment
The gas supply pipe fitting is a threaded 1/2 gas
cylindrical male attachment.
These pipes must be installed so that they are never
longer than 2000 mm when fully extended. Once
connection has been carried out, make sure that the
flexible metal pipe does not touch any moving parts and
is not compressed.
! Only use pipes and seals that comply with current
national regulations.
Burner and nozzle specifications
Table 1
Burner
Fast (R)
Semi Fast (S)
Auxiliary (A)
Supply pressures
*
At 15°C and 1013 mbar-dry gas
Natural G25 P.C.S. = 32.49 MJ/m³
S
S
A
PK 644 D GH X/HA G
PK 644 D GH /HA G
PKQ 644 D GH /HA G
4
All manuals and user guides at all-guides.com
Diameter
Thermal Power
(mm)
kW (p.c.s.*)
Nomin.
Reduc.
157
3.00
1.00
132
1.90
0.80
110
1.00
0.50
Nominal (mbar)
Minimum (mbar)
Maximum (mbar)
S
R
A
PKQ 755 D GH /HA G
Checking the tightness of the connection
! When the installation process is complete, check the
pipe fittings for leaks using a soapy solution. Never use a
flame.
! Should the gas pressure used be different (or vary
slightly) from the recommended pressure, a suitable
pressure regulator must be fitted to the inlet pipe (in order
to comply with current national regulations).
Natural Gas
Adjusting the burner's
(G25 / 25 mbar)
primary air
Nozzle
Flow*
1/100
l/h
(mm)
(G25)
132
332
103
210
75
111
25
20
30
S
R
A
(mm)
3.2
1.5
1.5
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