Gavardo Caldaie EN

Vertical steam generator FB

Industrial, forced circulation steam generator in vertical execution provides quick production of saturated steam. Compact and suitable for installation in tight spaces.

Two smoke passes and guaranteed efficiency of 88%
Steam producibility between 125 and 700 kg/h
Design pressure 12 bar
No risk of explosion
Compact, mono-block design
Gas, LPG, and diesel burners from the most renowned brands
IP65 integrated electrical control panel
2-stage, progressive or modulating operation
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  • Great design flexibility

    • 12 bar design pressure. Different design pressures available on request.
    • Operating options:
      • Standard two-stage: two potentials and two burner flames, operation at 50% and 100% power.
      • Progressive two-stage: two potentials and two flames, with the possibility of setting first stage below 50% of power. Adjustment of operating range by inverter.
      • Modulating: continuous power modulation by inverter, from a minimum of 30% to a maximum of 100%.
    • Optional "Pause/Work" function: timed or remotely activation of generator, by pneumatically operated valves.
    • Possibility to install an economizer for preheating of feed water through heat recovery from flue gas. Efficiency increasing up to 5%.
    • Mono-block construction: generator, burner, pumps and control panel on a single frame.
    • Customizable accessories according to customer's specific needs.
  • High quality standards

    • Inner tube bundle made by two concentric coils manufactured from P235GH/P265GH (eq. ASTM A106 Gr. B) carbon steel pipes, designed to maximize heat exchange surface between water and flue gas.
    • The inside of the lower diameter coil represents the combustion chamber. The entire tube bundle rests on a layer of refractory material for optimal insulation.
    • The generator can be opened for inspection and maintenance through the large upper door. The special fastening system ensures perfect sealing of the flue gas lap and optimal thermal efficiency even after many openings of the combustion chamber. 
    • The entire pressure body, including the steam manifold, is manufactured according to the Pressure Equipment Directive PED 2014/68/EU.
    • The special conformation of the manifold promotes the separation of any liquid water, minimizing the steam’s residual humidity. 
    • Body insulation by refractory ceramic fibers and an external stainless steel sheet layer.
    • High-quality steam bellow valves PN16: great operating safety and exclusion of leakage.
    • Speck volumetric piston pump, equipped with a special sealing kit that allows operating with condensate temperature peaks up to 105°C.
  • Complete and functional control panel

    Each machine comes complete of the electromechanical cabinet. It integrates the control panel complete of all buttons, selectors, digital controllers necessary for operating. Main features are:

    • Main power switch.
    • Auxiliaries on/off selector switch.
    • Burner on/off selector switch.
    • Speed selector switch (2-stage operation).
    • Manual lockout reset button.
    • Digital temperature controller for continuous monitoring of steam temperature.
    • Digital pressure regulator to adjust working pressure.
    • Dedicated indicator lights for each of the possible anomalies (water lockout, motor protection switch, safety pressure switch, chimney lockout, maximum water pressure, steam lockout and burner lockout).
    • Customization available (additional probes, digital PLC, remote control and block signals, burner flame ignition counter, etc.).
Disegno tecnico di caldaie industriali a vapore
1

Steam outlet / Vanne de refoulement de la chaudiere / Salida de vapor

2

Starter discharge / Vanne de purge du démarrage / Vàlvula de purga

3

Backwash valve 1/2" / Purge de contrelavage du serpentin / Retrolavado serpentìn

4

Electrical panel IP65 / Tableau électrique IP55 / Cuadro elèctrico IP65

5

Steam safety thermostat / Thermostat de sécurité de la vapeur / Termostato de seguiridad de vapor

6

Steam safety pressure switch / Pressostat de sécurité del la vapeur / Presostato de seguiridad de vapor

7

Steam manometer 0-20 bar / Manomètre de la vapeur / Manòmetro vapor 0-20 Bar

8

Steam pressure transducer / Transducteur de pression de vapeur / Transductor de presión de vapor

9

Chimney thermostat / Thermostat de la cheminée / Termostato chimenea

10

Burner / Brûleur / Quemador

11

Plunger pump / Pompe volumétrique à trois pistons / Bomba alimentaciòn de agua

12

Tap test steam pressure / Robinet d'essai pression vapeur / Grifo prueba presiòn vapor

13

Safety valve / Vanne de sécurité / Vàlvula de seguridad

14

Water safety pressure switch / Pressostat de sécurité de l'eau / Presostato de seguridad de agua

15

Water manometer / Manomètre d'eau / Manometro prèsion entrada de agua

16

Electrical motor / Moteur électrique / Motor elèctrico

17

Flow switch / Débitmétre / Flujostato

18

Predisposition for steam trap / Predispositione du purgeur du condensat / Vàlvula purga del colector de vapor

19

Combustion condensate discharge / Décharge de condensation / Descarga de condensación de combustión

20

Disc check valve / Clapet anti-retour / Vàlvula de retencion

21

Chimney / Cheminée / Chimenea

 

 

75

120

180

240

330

420

Producibility

[kg/h]

125

200

300

400

550

700

Power

[kcal/h]

75.000

120.000

180.000

240.000

330.000

420.000

[kw]

87

140

210

280

384

465

Pumps

n.

1

1

1

1

1

1

Stages

n.

one stage

two stages

two stages or modulant

Steam output

[DN]

DN32

DN32

DN40

DN40

DN40

DN40

Feed water inlet

[inch]

1"

1"

1"

1"

1"

1"

Starter discharge

[inch]

1"

1"

1"

1"

1"

1"

Safety valve

[inch] - [DN]

1/2"-3/4"

1/2"-3/4"

1/2"-3/4"

1/2"-3/4"

3/4"-1"

3/4"-1"

Chimney diameter

[mm]

120

120

160

160

160

160

Design pressure

[bar]

11,76

11,76

11,76

11,76

11,76

11,76

Fumes pressure drop

[mbar]

2

2

2

2

3

4

Dimension

A [mm]

1.400

1.400

1.500

1.500

1.500

1.500

B [mm]

800

800

900

900

900

900

C [mm]

1.460

1.460

1.460

1.460

1.460

1.710

L [mm]

See burner measures

Weight (burner excluded)

[kg]

600

600

800

800

900

1.000

 

The data shown are indicative and may therefore vary.

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Product type*
Indicated on the machine plate.
Steam gen. (NF followed by 4 digits), e.g: NF6415
Thermal oil heat. (5 digits), e.g: 01498
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