China Best Sales 110kw 150HP Oil Injected Screw Air Compressor Fix Speed 7 8 10 13 Barg air compressor CHINAMFG freight

Product Description

 

Crownwell Oil-Injected Rotary Screw Compressors

 CWD 7-400 & CWD 7-400 PM
Power output: 7-400 kW / 10-500 hp
Delivery rate: 0.8-71.2 m3/min / 28-2514 cfm
Pressure range: 7-13 bar / 100-190 psig

CROWNWELL COMPRESSOR – HIGHEST STHangZhouRD

SIMPLICITY BUT NOT SIMPLE

For 3 generations, customers from mechanical engineering, industry and trade have relied on CHINAMFG know-how when it comes to plHangZhou, developing and manufacturing compressed air systems. They are fully aware of the fact that CHINAMFG AIR is more than just ordinary compressed air: utmost safety, outstanding efficiency, excellent quality, maximized flexibility along with dependable service are the ingredients to transform CHINAMFG AIR into air to work with – in China, in Asia and in more than 102 countries around the world.

The III generation, the basis for economical compressed air production

The Know-How
More than decades of know-how in manufacturing for the compressed air market. World wide knowledge in different compressed air applications have guided the development of customer specified stationary screw compressors.

Technical Advancement for your Benefit
The advantage of CHINAMFG lies in its simplified construction. Fewer components are utilized. This means a 60% reduction in main and wearing parts and over 70% fewer pipes and connections. In turn, this greatly reduces the risk of leakages, making the system environmentally friendly. Safe direct drive operation without V-belt transmission.

The CHINAMFG CHINAMFG works in the following way:
Ambient air is drawn through the intake filter and the multifunctional control system into the CHINAMFG block. This block consists of a pair of screw rotors. The main rotor, driven by an electric motor, takes the secondary rotor with it. The air is drawn in by the rotation of both of the interlocking rotors and is continually compressed. During rotation, coolant is injected into the rotors and forms a hydrostatic film between the main and secondary rotors. The function of the coolant is to seal the rotors, lubricate the bearings and adsorb the compression heat. Before compressed air leaves the compressor ( at 80 ºC approx.) it is separated from the coolant before being cooled in the aftercooler to approx.. 8ºC to 12ºC above the ambient temperature. The coolant then passes to the thermostatic control block and filter, before entering the cooler where it is cooled from approx.. 80ºC down to 50ºC. It is then injected back into the CHINAMFG block.

Features:
Direct drive via flexible coupling.
Fully encapsulated CHINAMFG CHINAMFG block.
Standard electric motor Protection Index IP23 and IP54.
User friendly service access.
Top quality, washable, oil resistant sound insulation.
Ready for operation, prewired and fully enclosed.
With operating mode selector switch Automatic-Off-Continuous.
Centrally mounted cooling fan provided for compressed air and lubricant coolers.
Compact and neat cabinet design.

Optional Equipment:
Sense of rotation
Multiple unit control with automatic base load selection
Full motor protection
Mains isolator switch for wall mounting

Beyond these features we offer a wide choice of compressed air accessories in reference to our compressor product range.
Energy Recovery Systems CROWNWELL-THERM
Compressed Air Filters
Compressed Air Dryers
Condensate Traps
Oil-Water Separators
Compressed Air Receivers

Crownwell OIL-INJECTED FIXED SPEED COMPRESSOR
 

TECHNICAL SPECIFICATIONS CWD 7-400
(7.5-400kW / 10-500hp)
 

Model Motor Power
kW / hp
Free Air Delivery
m3/min
Noise Level
dB(A)
Dimension
L * W * H
mm
Weight
Kg
7barg 8barg 10barg 13barg
CWD7 7.5 / 10 1.3 1.2 1.0 0.8 66 880*700*920 240
CWD11 11 / 15 1.7 1.6 1.4 1.2 68 1080*750*1000 400
CWD15 15 / 20 2.5 2.3 2.1 1.9 68 1080*750*1000 420
CWD18 18.5 / 25 3.2 3.0 2.7 2.4 68 1280*850*1160 550
CWD22 22 / 30 3.8 3.6 3.2 2.8 68 1280*850*1160 580
CWD30 30 / 40 5.3 5.0 4.5 4.0 68 1280*850*1160 600
CWD37 37 / 50 6.8 6.2 5.6 5.0 68 1400*1000*1290 800
CWD45 45 / 60 8.0 7.3 7.0 5.9 72 1400*1000*1290 850
CWD55 55 / 75 10.1 9.5 8.7 7.8 72 1800*1230*1570 1660
CWD75 75 / 100 13.6 12.8 12.3 10.2 72 1800*1230*1570 1800
CWD90 90 / 125 16.2 15.5 14.0 12.5 72 1800*1230*1570 1900
CWD110 110 / 150 21.2 19.8 17.8 15.5 72 2400*1470*1840 2500
CWD132 132 / 180 24.5 23.2 20.5 17.8 75 2400*1470*1840 2700
CWD160 160 / 215 28.8 27.8 25.0 22.4 75 2400*1470*1840 3000
CWD185 185 / 250 32.5 31.2 28.0 25.8 75 3150*1980*2150 3500
CWD200 200 / 270 36.0 34.3 30.5 28.0 82 3150*1980*2150 4000
CWD250 250 / 350 43.0 41.5 38.2 34.9 82 3150*1980*2150 4500
CWD315 315 / 400 51.0 50.2 44.5 39.5 82 3150*1980*2150 6000
CWD355 355 / 450 64.0 61.0 56.5 49.0 84 3150*1980*2150 6500
CWD400 400 / 500 71.2 68.1 62.8 52.2 84 3150*1980*2150 7200
  • Unit performance measured according to ISO 1217, Annex C, Edition 4 (2009)

Reference conditions:
-Relative humidity 0%
-Absolute inlet pressure: 1 bar (a) (14.5 psi)
-Intake air temperature:  20°C, 68°F

  • Noise level measured according to ISO 2151:2004, operation at max. operating pressure and max. speed; tolerance: ±3 dB(A)

Crownwell OIL-INJECTED PERMANENT MAGNET COMPRESSOR

TECHNICAL SPECIFICATIONS CWD 7-400 PM
(7.5-400kW / 10-500hp)
 

Model Motor Power
kW / hp
Free Air Delivery
m3/min
Noise Level
dB(A)
Dimension
L * W * H
mm
Weight
Kg
7barg 8barg 10barg 13barg
CWD7 PM 7.5 / 10 1.3 1.2 1.0 0.8 66 760*700*920 200
CWD11 PM 11 / 15 1.7 1.6 1.4 1.2 68 980*750*1000 350
CWD15 PM 15 / 20 2.5 2.3 2.1 1.9 68 980*750*1000 360
CWD18 PM 18.5 / 25 3.2 3.0 2.7 2.4 68 1120*850*1160 500
CWD22 PM 22 / 30 3.8 3.6 3.2 2.8 68 1120*850*1160 520
CWD30 PM 30 / 40 5.3 5.0 4.5 4.0 68 1120*850*1160 550
CWD37 PM 37 / 50 6.8 6.2 5.6 5.0 68 1280*1000*1290 750
CWD45 PM 45 / 60 8.0 7.3 7.0 5.9 72 1280*1000*1290 780
CWD55 PM 55 / 75 10.1 9.5 8.7 7.8 72 1800*1230*1570 1600
CWD75 PM 75 / 100 13.6 12.8 12.3 10.2 72 1800*1230*1570 1800
CWD90 PM 90 / 125 16.2 15.5 14.0 12.5 72 1800*1230*1570 1900
CWD110 PM 110 / 150 21.2 19.8 17.8 15.5 72 2400*1470*1840 2500
CWD132 PM 132 / 180 24.5 23.2 20.5 17.8 75 2400*1470*1840 2700
CWD160 PM 160 / 215 28.8 27.8 25.0 22.4 75 2400*1470*1840 3000
CWD185 PM 185 / 250 32.5 31.2 28.0 25.8 75 3150*1980*2150 3500
CWD200 PM 200 / 270 36.0 34.3 30.5 28.0 82 3150*1980*2150 4000
CWD250 PM 250 / 350 43.0 41.5 38.2 34.9 82 3150*1980*2150 4500
CWD315 PM 315 / 400 51.0 50.2 44.5 39.5 82 3150*1980*2150 6000
CWD355 PM 355 / 450 64.0 61.0 56.5 49.0 84 3150*1980*2150 6500
CWD400 PM 400 / 500 71.2 68.1 62.8 52.2 84 3150*1980*2150 7200
  • Unit performance measured according to ISO 1217, Annex C, Edition 4 (2009)

Reference conditions:
-Relative humidity 0%
-Absolute inlet pressure: 1 bar (a) (14.5 psi)
-Intake air temperature:  20°C, 68°F

  • Noise level measured according to ISO 2151:2004, operation at max. operating pressure and max. speed; tolerance: ±3 dB(A)
  • PM-Permanent Magnet

 

Lubrication Style: Lubricated
Cooling System: AC Cooling and Air Cooling
Power Source: AC Power
Customization:
Available

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air compressor

How are air compressors employed in the petrochemical industry?

Air compressors play a vital role in the petrochemical industry, where they are employed for various applications that require compressed air. The petrochemical industry encompasses the production of chemicals and products derived from petroleum and natural gas. Here’s an overview of how air compressors are utilized in the petrochemical industry:

1. Instrumentation and Control Systems:

Air compressors are used to power pneumatic instrumentation and control systems in petrochemical plants. These systems rely on compressed air to operate control valves, actuators, and other pneumatic devices that regulate processes such as flow control, pressure control, and temperature control. Compressed air provides a reliable and clean source of energy for these critical control mechanisms.

2. Pneumatic Tools and Equipment:

Petrochemical plants often utilize pneumatic tools and equipment for various tasks such as maintenance, repair, and construction activities. Air compressors supply the necessary compressed air to power these tools, including pneumatic drills, impact wrenches, grinders, sanders, and painting equipment. The versatility and convenience of compressed air make it an ideal energy source for a wide range of pneumatic tools used in the industry.

3. Process Air and Gas Supply:

Petrochemical processes often require a supply of compressed air and gases for specific applications. Air compressors are employed to generate compressed air for processes such as oxidation, combustion, and aeration. They may also be used to compress gases like nitrogen, hydrogen, and oxygen, which are utilized in various petrochemical reactions and treatment processes.

4. Cooling and Ventilation:

Petrochemical plants require adequate cooling and ventilation systems to maintain optimal operating conditions and ensure the safety of personnel. Air compressors are used to power cooling fans, blowers, and air circulation systems that help maintain the desired temperature, remove heat generated by equipment, and provide ventilation in critical areas.

5. Nitrogen Generation:

Nitrogen is widely used in the petrochemical industry for applications such as blanketing, purging, and inerting. Air compressors are utilized in nitrogen generation systems, where they compress atmospheric air, which is then passed through a nitrogen separation process to produce high-purity nitrogen gas. This nitrogen is used for various purposes, including preventing the formation of explosive mixtures, protecting sensitive equipment, and maintaining the integrity of stored products.

6. Instrument Air:

Instrument air is essential for operating pneumatic instruments, analyzers, and control devices throughout the petrochemical plant. Air compressors supply compressed air that is treated and conditioned to meet the stringent requirements of instrument air quality standards. Instrument air is used for tasks such as pneumatic conveying, pneumatic actuators, and calibration of instruments.

By employing air compressors in the petrochemical industry, operators can ensure reliable and efficient operation of pneumatic systems, power various tools and equipment, support critical processes, and maintain safe and controlled environments.

air compressor

What safety precautions should be taken when working with compressed air?

Working with compressed air requires adherence to certain safety precautions to prevent accidents and ensure the well-being of individuals involved. Here are some important safety measures to consider:

1. Personal Protective Equipment (PPE):

Wear appropriate PPE, including safety goggles or a face shield to protect eyes from flying debris or particles, hearing protection to reduce noise exposure, and gloves to safeguard hands from potential hazards.

2. Compressed Air Storage:

Avoid storing compressed air in containers that are not designed for this purpose, such as soda bottles or makeshift containers. Use approved and properly labeled air storage tanks or cylinders that can handle the pressure and are regularly inspected and maintained.

3. Pressure Regulation:

Ensure that the air pressure is regulated to a safe level suitable for the equipment and tools being used. High-pressure air streams can cause serious injuries, so it is important to follow the manufacturer’s recommendations and never exceed the maximum allowable pressure.

4. Air Hose Inspection:

Regularly inspect air hoses for signs of damage, such as cuts, abrasions, or leaks. Replace damaged hoses immediately to prevent potential accidents or loss of pressure.

5. Air Blowguns:

Exercise caution when using air blowguns. Never direct compressed air towards yourself or others, as it can cause eye injuries, hearing damage, or dislodge particles that may be harmful if inhaled. Always point blowguns away from people or any sensitive equipment or materials.

6. Air Tool Safety:

Follow proper operating procedures for pneumatic tools. Ensure that tools are in good working condition, and inspect them before each use. Use the appropriate accessories, such as safety guards or shields, to prevent accidental contact with moving parts.

7. Air Compressor Maintenance:

Maintain air compressors according to the manufacturer’s guidelines. Regularly check for leaks, clean or replace filters, and drain moisture from the system. Proper maintenance ensures the safe and efficient operation of the compressor.

8. Training and Education:

Provide adequate training and education to individuals working with compressed air. Ensure they understand the potential hazards, safe operating procedures, and emergency protocols. Encourage open communication regarding safety concerns and implement a culture of safety in the workplace.

9. Lockout/Tagout:

When performing maintenance or repairs on compressed air systems, follow lockout/tagout procedures to isolate the equipment from energy sources and prevent accidental startup. This ensures the safety of the individuals working on the system.

10. Proper Ventilation:

Ensure proper ventilation in enclosed areas where compressed air is used. Compressed air can displace oxygen, leading to a potential risk of asphyxiation. Adequate ventilation helps maintain a safe breathing environment.

By adhering to these safety precautions, individuals can minimize the risks associated with working with compressed air and create a safer work environment.

air compressor

Can you explain the basics of air compressor terminology?

Understanding the basic terminology related to air compressors can help in better comprehension of their operation and discussions related to them. Here are some essential terms related to air compressors:

1. CFM (Cubic Feet per Minute): CFM is a unit of measurement that denotes the volumetric flow rate of compressed air. It indicates the amount of air a compressor can deliver within a minute and is a crucial factor in determining the compressor’s capacity.

2. PSI (Pounds per Square Inch): PSI is a unit of measurement used to quantify pressure. It represents the force exerted by the compressed air on a specific area. PSI is a vital specification for understanding the pressure capabilities of an air compressor and determining its suitability for various applications.

3. Duty Cycle: Duty cycle refers to the percentage of time an air compressor can operate in a given time period. It indicates the compressor’s ability to handle continuous operation without overheating or experiencing performance issues. For instance, a compressor with a 50% duty cycle can run for half the time in a given hour or cycle.

4. Horsepower (HP): Horsepower is a unit used to measure the power output of a compressor motor. It indicates the motor’s capacity to drive the compressor pump and is often used as a reference for comparing different compressor models.

5. Receiver Tank: The receiver tank, also known as an air tank, is a storage vessel that holds the compressed air delivered by the compressor. It helps in stabilizing pressure fluctuations, allowing for a more consistent supply of compressed air during peak demand periods.

6. Single-Stage vs. Two-Stage: These terms refer to the number of compression stages in a reciprocating air compressor. In a single-stage compressor, air is compressed in a single stroke of the piston, while in a two-stage compressor, it undergoes initial compression in one stage and further compression in a second stage, resulting in higher pressures.

7. Oil-Free vs. Oil-Lubricated: These terms describe the lubrication method used in air compressors. Oil-free compressors have internal components that do not require oil lubrication, making them suitable for applications where oil contamination is a concern. Oil-lubricated compressors use oil for lubrication, enhancing durability and performance but requiring regular oil changes and maintenance.

8. Pressure Switch: A pressure switch is an electrical component that automatically starts and stops the compressor motor based on the pre-set pressure levels. It helps maintain the desired pressure range in the receiver tank and protects the compressor from over-pressurization.

9. Regulator: A regulator is a device used to control and adjust the output pressure of the compressed air. It allows users to set the desired pressure level for specific applications and ensures a consistent and safe supply of compressed air.

These are some of the fundamental terms associated with air compressors. Familiarizing yourself with these terms will aid in understanding and effectively communicating about air compressors and their functionality.

China Best Sales 110kw 150HP Oil Injected Screw Air Compressor Fix Speed 7 8 10 13 Barg   air compressor CHINAMFG freightChina Best Sales 110kw 150HP Oil Injected Screw Air Compressor Fix Speed 7 8 10 13 Barg   air compressor CHINAMFG freight
editor by CX 2023-10-17