Installation And Operating Instructions - flamco Flexair 1 G Instructions De Montage Et D'utilisation

GB
Flexair ®
Flamco b.v.
P.O. Box 115
2800 AC Gouda - Holland
Phone: + 31 182 591800
info@flamcogroup.com
Flamco UK Ltd.
St. Helens, Merseyside WA9 4WZ
Phone: 01744 818100
info@flamco.co.uk
Edition 2004 / EXP
I N S T A L L A T I O N A N D O P E R A T I N G I N S T R U C T I O N S
Technical specifications
• Maximum working pressure
• Maximum working temperature
• Minimum required system pressure (Flexair) : approx. 0.5 bar.
• Alternative flanges made to specifications of : PN 16.
Working principle (fig. 1, page 22)
Centrifugal air separation
(see our technical documentation).
1. Air chamber.
2. Venting valve.
3. Housing (steel).
Dimensions (fig. 2, page 22)
Flexairs from DN 400 upwards are fitted with feet. Dimension A thus includes feet.
Type
Flexair 1 G
1
Flexair 1 / G
4
1
Flexair 1 / G
2
Flexair 2 G
Flexair 25
Flexair 32
Flexair 40
Flexair 50
Flexair 65
Flexair 80
Flexair 100
Flexair 125
Flexair 150
Flexair 200
Flexair 250
Flexair 300
Flexair 350
Flexair 400
Flexair 500
Flexair 600
Maintenance and service
Flexair air separators do not require any specific maintenance.
The outlet (fig. 1, no. 4) may be opened at intervals to remove heavier installation contamination
(such as sand and welding waste). To make this easier, we recommend replacing the drain cover with
a ball cock (from DN 200 upwards available across the range). The venting valve (fig. 1, no. 2) must
be closed when the installation is filled up (or re-filled) in order to prevent damage (and concomitant
leaks) arising due to the high air velocity.
In the unlikely event that the venting valve (fig. 1, no. 2) should become contaminated and spring
a leak, it can be closed with the built-in screw.
The valve-end of the air chambers is machined down to 22 mm on the outside (from Flexair DN 65
upwards), to enable an air exhaust tube to be fitted to it easily. It must be installed so that it inclines
downwards (fig. 3, page 22).
The brass air chamber, including float and valve mechanism, is available as a spare part.
For the purposes of service, dimension A should be at least 30 mm (fig. 4, page 22).
: 10 bar.
: 120 °C.
4. Outlet/de-sludging opening.
5. Water chamber.
Dimensions in mm
S (G)
Ø D ~A version
104 275 285
104 275 295
114 280 330
124 300 350
104 275 250
104 275 260
114 280 290
124 300 310
254 448 400
254 448 400
450 669 568
450 669 563
450 749 563
650 1275 780
800 1555 1040
850 1765 1170
1000 1850 1300
1200 2480 1560
1500 2950 1950
1800 3380 2340
E
F
version G Ø d
- -
- -
- -
- -
- - 33.7
- - 42.4
- - 48.3
- - 60.3
487 153 76.1
487 152 88.9
673 212 114.3
673 186 139.7
674 235 168.3
904 335 219.1
1180 463 273.0
1326 506 323.9
1464 566 355.6
1730 698 406.4
2130 872 508.0
2530 1046 610.0
1
1 /
1
4
1 /
1
2
2
8