products > boilers > biasi > cast iron boilers

 

Model SG

 
 

Cast- Iron  Boilers for fuel - oil or gas -fired blown air burners , combined with a vertical storage vessel to be installed above or beside the boiler

- GG20 : boiler body made of GG20 cast - iron
- operatetion with oil or gas - fired or oil - fired burner (SG 90 fuel oil only )
- 23.5÷ 81 /KW : output range : 23.5÷ 81 KW
- central heating
- Central heating and domestic hot water with BOL 120 storage vessel only with SG35 and SG46 boilers
- resistant to condensation
 

 

 

Technical Data:

Model

 

 

SG23

SG35

SG46

SG58

SG70

SG80

Number of sections

 

 

2

3

4

5

6

7

Fuel

Oil/Gas 

Max. net output

 

kw

23.5

36.0

46.5

58.0

70.0

81.0

Max.output

 

kw

26.0

40.0

51.4

64.0

77.5

89.5

Efficiency at 100%

 

%

90.0

90.4

91.0

90.9

90.3

90.5

Efficiency at 30%

 

%

90

91

91

91

91

91

Flue gas temperature**

 

˚C

205

200

195

210

220

220

Water content

 

L

22.5

29.5

36.0

42.8

49.6

56.4

Max. operating pressure

 

bar

4

4

4

4

4

4

Furnace

D

mm

290

290

290

290

290

290

 

L

mm

270

400

530

660

790

920

Burner connectionj

 

mm

110

110

110

110

110

110

Flue

Ø

mm

130

130

130

150

1502

150

Flue gas side load loss

 

mbar

0.25

0.25

0.27

0.30

0.35

0.40

Water side load loss

(At = 15k)

mbar

3

6

11

18

28

40

Flow connection

 

"G

11/4

11/4

11/4

11/4

11/4

11/4

Return connection

 

"G

11/4

11/4

11/4

11/4

11/4

11/4

Fill/drain connection

 

"G

1/2

1/2

1/2

1/2

1/2

1/2

120 Storage Vessel Technical Data

Model

 

SG35

SG46

 

 

 

Temperature

 

˚C

-

40-65

40-65

-

-

-

Max.  pressure

 

bar

-

8

8

-

-

-

continuous delivery rate

(At = 25k)***

L/min

-

16

16

-

-

-

storage vessel content

 

L

-

120

120

-

-

-

* At maximum boiler capacity : hot water temperature 80˚C - room temperature 20˚C
 

** Flue temperature is measured withCO2 =13% for fuel oil , 10% for gas and with 80˚C boiler temperature

*** With boiler outlet temperature = 80˚C and domestic hot water inlet temp = 10˚C
 

Control Panel

Boiler control panel :
- Main switch
- signal lamp
- Boiler thermometer
- Boiler Control thermostat
- Burner lock out signal lamp
- Manually reset safety thermostat
Storage vessel control panel :
- Summer / winter switch
- Boiler limit thermostat
- Storage vessel thermostat
- Storage vessel thermometer
 

Main Technical Characteristics :

- High efficiency boiler
- long - lasting GG20 cast-iron body
- hinged door opening to the right or left
- cast iron sections can be cleaned from the front
- Possibility of low-temperature operation
- Each section is hydraulically tested at 10 bar
- Assembled body is hydraulically tested at 6 bar
- Production cycle certified according to ISO 9002 Standards
- separate 120 liter capacity enameled steel storage heater

  

Delivery Composition

SG boilers are supplied on a single pallet and protected by a wooden crate . Delivery includes :
- Boiler body complete with hinged door
- powder - painted steel shell
- Glass wool insulation
- Control panel
storage vessels are supplied on a single pallet and protected by a wooden crate ,
Delivery includes :
- 120 liter storage vessel
- powder - painted steel case
- connection kit with hoses , domestic hot water pump and fittings
 

Dimensions And Weight

Model

SG23

SG35

SG46

SG58

SG70

SG80

Height

H mm

860

860

860

860

860

860

Width

L mm

600

600

600

600

600

600

Depth

P MM

445

555

685

805

915

1.045

Weight

 Kg

120

155

200

245

285

325