Two Stage Variable Speed (PM VSD)

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Two Stage Variable Speed Rotary Screw Air Compressor (PM VSD)

Model:DHLV-Z Series

Brand:DREAM

Working Pressure:4~5 [ bar ]

              58.0~72.5 [ psig ]

Air Capacity (FAD):4.3~75 [ m³/min ]

                      151.9~2648.6 [ cfm ]

Power: 55~280 [ KW ]

    74.8~380.7 [ hp ]

For other product parameters, we can customize for clients and please inquiry us.


Product Features

■ Durable air end: efficient and stable;

■ Permanent magnet motor, save your electricity costs, IP54, B-level temperature rise is suitable for harsh environments such as large dust and high temperature;

■ Coupling connection, more energy saving;

■ Multiple noise reduction design, calculated according to noise theory, with special flame-retardant muffler cotton inside to reduce unit noise and provide a quieter environment

■ Independent air intake to make the cooling effect better;

■ Special low-pressure cooler with high efficiency and low noise centrifugal fan, large cooling air flow, low noise, faster cooling effect, convenient cleaning and maintenance;

■ Low-pressure special cyclone inner and outer oil sub-barrel design, improve the initial separation efficiency, with special low-pressure oil sub-core, low pressure loss, better separation effect, lower air oil content, long service life;

■ The conventional maintenance parts (three filters) adopt openable door panels, the installation position is easy to replace, and the maintenance is more convenient

■ Auxiliary oil supply system is added to the unit below 3bar to ensure that the unit (especially the bearing) can get sufficient oil supply in the later period of long-term operation, the unit operates more stable and has a longer life

■ High temperature shutdown protection;

■ Motor overload protection;

■ Overpressure safety decompression system;

■ Optimized shock absorption pad to reduce vibration and noise;

■ Place electrical components and oil separation and filtration modules that are easily damaged by high temperature in the cold room, which improves the service life of the unit.

■ Two-way pressure, one-way temperature control, more protection for series operation.

■ Standard IoT system, so that you can see the operation of your machine on your mobile phone;

Low-voltage two stage air end

Low-voltage two stage air end

1. Low voltage + two-stage design, ultimate energy saving. The unique intercooler spray curtain design reduces the temperature of the air, close to isothermal compression, saving compression power consumption.

2. Single-stage compression ratio is smaller, leakage is less, bearing load is light, and bearing life is greatly improved;

3. The design idea of "large rotor, large bearing, low speed" is adopted to reduce noise and vibration, and increase the life and stability of the air end.

4. The tooth surface is processed by German KAPP rotor grinder to create a high-precision rotor, which is the first guarantee of high efficiency and stability of the air end.

5. Adopt a new type of 5: 6 asymmetric rotor tooth shape, high-precision three-coordinate measuring machine for comprehensive measurement, increase the exhaust volume by 5%.

6. All imported bearings are used.

Advanced and reliable electronic control system

Advanced and reliable electronic control system

1. Intelligent control system, with a good human-machine communication interface; high-quality electrical components are selected, and contactors are imported brands.

2. Develop special programs for the characteristics of medium pressure, with multi-channel pressure sensors and multi-channel temperature sensors, comprehensive detection of the running state of the unit, automatic control of the machine state, no need for special care.

3. Emergency stop function, there is a push-type emergency stop switch in a prominent position of the unit, which can be immediately stopped in an emergency.

4. Configure Internet of Things, you can check the running status of the unit on your mobile phone

5. Independent air duct design, applicable to various working conditions.

Silent centrifugal fan

Silent centrifugal fan

1. The whole series adopts centrifugal fan, which is more efficient and more energy-saving.

2. Compared with axial fans, centrifugal fans have higher air pressure, lower noise and more energy saving.

3. Controlled by frequency conversion fan, the oil temperature is constant and the service life of lubricating oil is greatly extended.

4. Due to the high wind pressure, the cooler and filter are less likely to be blocked.

Parameter

DHLV-Z
series
Working pressureCapacitypowernoiseAiroutlet
pipe
diameter
net
weight
Dimensions(mm)efficiency
barpsig(m3/min)cfmkWhpdBkglengthwidthheightrotating
speed
note
DHLV-55Z4.0-5.058-734.3-14.5152-51255 75 65±3DN653500 2420 1530 1720 1500 Energy-
saving
type
DHLV-75Z4.0-5.058-735.8-19.5205-68975 100 68±3DN653750 2420 1530 1720 1500 Energy-
saving
type
DHLV-90Z4.0-5.058-737.2-24.2254-85590 120 70±3DN803800 2800 1700 1950 1500 Energy-
saving
type
DHLV-110Z4.0-5.058-738.2-27.5290-971110 150 72±3DN804200 2820 1730 2100 1500 Energy-
saving
type
DHLV-132Z4.0-5.058-7310.2-34.5360-1218132 175 74±3DN1255000 2820 1730 2100 1500 Energy-
saving
type
DHLV-160Z4.0-5.058-7312.6-42.2445-1490160 215 75±3DN1255900 3450 2000 2050 1500 Energy-
saving
type
DHLV-200Z4.0-5.058-7315.7-52.5554-1854200 270 76±3DN1507800 3800 2250 2350 1500 Energy-
saving
type
DHLV-220Z4.0-5.058-7317.3-58611-2048220 300 78±3DN1508000 3800 2250 2350 1500 Energy-
saving
type
DHLV-250Z4.0-5.058-7318.8-63.1664-2228250 350 78±3DN1508100 3800 2250 2350 1500 Energy-
saving
type
DHLV-280Z4.0-5.058-7322.3-74.8788-2642280 375 80±3DN1508500 4600 2350 2650 1500 Energy-
saving
type


Video

Brochure

FAQ

  • 1. Is there a low-pressure oil-free machine?

    A: 

    We have a low-pressure dry oil-free screw compressor

  • 2. Exhaust parameters measured data

    A: 

    Product parameters and configuration and other sales information, please consult our sales manager

  • 3. How big can be the smallest?

    A: 

    22kW

  • 4. What are the specifications of the product accessories?

    A: 

    Please consult our sales manager for sales materials such as product parameters and configurations

  • 5. Is there a configuration table?

    A: 

    Please consult our sales manager for sales materials such as product parameters and configurations

  • 6. Is there bipolar compression for low pressure?

    A: 

    DHLV-Z series is a low-pressure two-stage compression micro-oil screw compressor product for Dream

  • 7. What is the difference between energy-saving models and ordinary models?

    A: 

    Please consult our sales manager for sales materials such as product parameters and configurations

  • 8. Can you provide measured data?

    A: 

    Please consult our sales manager for sales materials such as product parameters and configurations

  • 9. Can the pressure collection point of the variable frequency control system be pulled to a place about 200 meters away from the machine (the distance between the air compressor room and the air end is about 200 meters

    A: 

    Please consult our sales manager for sales materials such as product parameters and configurations

  • 10. What is the specific power?

    A: 

    Please consult our sales manager for sales materials such as product parameters and configurations

  • 11. Measured data of output power and gas production.

    A: 

    Please consult our sales manager for sales materials such as product parameters and configurations

  • 12. Can the parameters of the machine stand the test?

    A: 

    All Dream products comply with international standards

For more than a decade, Dream (Shanghai) Compressor Co., Ltd has been striving to become one of the leading manufacturers of compressed air solutions in China.

Contact Us

Mob.: +86 13671551445

E-mail: [email protected]

WhatsApp: ++86 13671551445

Add.:  Shanghai Sales Headquarters: Room 316, Building 1, Baodacheng Business Park, Songjiang District, Shanghai, China

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