GPGD
Diesel double pressure booster sets
Double pump pressure booster sets specially designed for the automatic supply of diesel oil to boiler burners
The unit is mounted on a sheet metal baseplate for an easy and user-friendly installation.
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Description
General description
Double pump pressure booster sets specially designed for the automatic supply of diesel oil to boiler burners, mounted on a sheet metal frame for an easy and user-friendly installation.
Componentes
- Two R Series self-priming gear pumps with built-in safety valve inside the gear casing.
- Alternating operation between pumps so that they work homogeneously throughout their service life.
- Multifunction electrical panel with direct start for control, operation and protection of the unit. It includes:
- Single-phase and three-phase connection up to 13A.
- Adjustable electronic thermal relay 1-13A.
- It admits connection of level, humidity and temperature probes.
- General disconnecting switch, two magneto-thermal switches and two contactors.
- Electronic detection of faults and wiring errors.
- 5 cable glands.
- Safety to avoid restarts and sudden stops due to water hammer.
- Acoustic alarm.
- Safety and control pressure switches with manual or automatic reset, depending on model.
- Diesel oil filter to avoid impurities in the circuit that can wear out its components.
- Pressure gauge indicating the working pressure in the installation.
- Check valves in the impulsion lines to avoid the circulation of the fluid in the opposite direction.
- Hydropneumatic accumulator that maintains a reserve of pressurized water to guarantee an optimal supply and significantly reduces the number of pump start-stop maneuvers.
- Ball valve to control the flow of diesel oil through the circuit.
¡For single pump diesel fuel booster sets, see GPG Series!
Materials
| Pump casing | GG25 |
| Gears | Treated steel |
| Pump shaft | F-114 |
| Baseplate | Iron sheet metal with black epoxy paint |
| Valves and fittings | Galvanized iron or brass |
| Other accessories | Depending on the model and application |
Technical data
| Motor | Single/three-phase according to IEC standards |
| Efficiency | IE2 or IE3 for powers > 1 HP IE1 if the power < 1 HP |
| Tension | Single-phase 230V ± 10% up to 1 HP Three-phase 230/400 V ± 10% up to 5,5 HP |
| Poles | 4 or 6 depending on the model |
| Level of protection | IP55 |
| Insulation | F Class |
Usage limits
| Range of flow rates | From 20 to 6500 l/h |
| Range of pressures | Up to 10 bar depending on the model |
| Max. Working pressure | 12 bar |
| Max. Working temperature | 60 ºC |
| Max. Suction height | 7 m |
