Technical
characteristics
Product range
551
002
Ø 22
551
003
3/4”
551
005
3/4”
551
006
1”
551
007
1 1/4”
551
008
1 1/2”
551
009
2”
551
902
Ø 22
551
905
3/4”
551
906
1”
551
052
DN 50
551
062
DN 65
551
082
DN 80
551
102
DN 100
551
122
DN 125
551
152
DN 150
551
053
DN 50
551
063
DN 65
551
083
DN 80
551
103
DN 100
551
123
DN 125
551
153
DN 150
551
200*
DN 200
551
250*
DN 250
551
300*
DN 300
2
Compact versions
Threaded connections
Materials:
- body:
brass EN 12165 CW617N
- int. element:
PA66G30 stainless steel (compact version)
- float:
PP
- floating guide and stem:
brass EN 12164 CW614N
- float lever and spring:
stainless steel
- hydraulic seal:
EPDM
Medium:
water, glycol solution
Max. percentage of glycol:
50%
Max. working pressure:
10 bar
Max. discharge pressure:
10 bar
Temperature range:
0–110°C
Connections:
- main:
- Ø 22 mm compression end; 3/4” F
- 3/4”, 1”, 1 1/4”, 1 1/2”, 2” F
- drain:
1/2” F (with plug)
Flanged and welded connections
Materials: - body:
epoxy resin coated steel
- int. element:
stainless steel
- air vent body:
brass EN 12165 CW617N (DN 200–DN 300),
chrome plated
- air float:
PP
- air floating guide and stem:
brass EN 12164 CW614N
- air float lever and spring:
stainless steel
- fydraulic seal:
EPDM
- drain cock (DN 50–DN 150):
brass EN 12165 CW617N
- shut-of and drain valve
body (DN 200–DN 300): brass EN 12165 CW617N, chrome plated
Medium:
water, glycol solution non hazardous, therefore
excluded from the guidelines of 67/548/CEE Directive
Max. percentage of glycol:
50%
Max. working pressure:
10 bar
Max. discharge pressure:
10 bar
Temperature range:
0–110°C
Connections:
- flanged:
PN 16: DN 50–DN 150; PN 10: DN 200–DN 300
- welded:
DN 50–DN 150
- temperature probe:
1/2” inlet/outlet (DN 200–DN 300)
- drain:
1” M (with plug); 2” F (DN 200–DN 300)
*
Without insulation and with floor supports
