Mounting gas ramps
dreizler A 3001 E - 18.12.2015 | A 2021 - 1.15 | EN - 18.05.2015
110
32.6 Example gas ramp DN 65 flanged
The gas ramp is generally mounted from the burner side: vertically down, to the right or left and backwards.
Gas ramp mounting can however be adapted to location-specific requirements.
Fig. 32-3 Example gas ramp model HT, DN 65 flanged, pneumatic components, p
e
= 300mbar
1
Flange reduction
2
Flange bow
3
Flange tube
4
Double gas valve
5
Valve actuator
6
Valve actuator
7
Gas pressure switch MIN
8
Gas pressure switch tightness indicator
9
Gas pressure switch MAX
10 Manometer with push button plug
11 Test burner with push button plug and test nipple
12 Compensator
13 Gas filter
14 Ball valve
Example gas ramp DN 65 flanged, protection and test pressures
The components of this example gas ramp are designed for a max. protection pressure of 600mbar.
Compliance with this max. value must be ensured by way of relevant pressure control and safety de-
vices.
Test pressure up to and including the double gas valve = 1.5 x p
e
or max. 600mbar.
Test pressure downstream of double gas valve up to burner connection flange = operating pressure of
burner at max. load.
Conduct test with foaming agent or a gas detector device.
NOTICE:
On assembly of the actuator SKP 25 a set-point spring is necessary (standard scope of delivery).
Set-point spring of burners < 10 MW (yellow) AGA 22
Set-point spring of burners > 10 MW (red) AGA 23