Product Description
The founder led his team and launched an after-sales service company specialised in oil-free rotary screw air compressors in 2005, offering a range of products from airends to compressors of leading brands. With previous experience in maunufacuting oil-free air compressors, the founder established a workshop in ZheJiang in 2009 specialised in manufacturing oil-free airends and on site testing.
The workshop was such a success ZheJiang NAPU Compressor Co. Ltd. was then founded in 2012.
NAPU Compressor is compliant with ISO 8573-1, Class 0 standard and audited by TUV Rheinland and China National Quality Inspection Center of Compressor and Refrigerator.
The company is also compliant with ISO 9001:14001 and is CHINAMFG in the domestic market for its quality-driven culture. The oil-free compressors manufactured by the company are used in a variety of sectors including some of our valued clients like CASC-China Aerospace Science Corporation, NORINCO-China North Industries Group, CNNC-China National Nuclear Group, CHANG AN AUTO, SINOPHARM, BYD and CALT and Sino-Chemical etc.
Continuous improvement in productivity and efficiency is our goal, and we continue to offer an extensive services including our own branded oil-free compressor package as well as after-sales services for other leading brands.
| Napu Model No. | Working pressure | FAD | Dimension(L*W*Hmm) | Weight (kg) | Speed RPM | Air outlet pipe diameter | Power | Air Cooling capacity | ||
| BarG | m3/min | mm | mm | mm | kg | rpm | kW | m3/h | ||
| OFW55VSD | 7.5 | 4.5-8.8 | 2100 | 1450 | 2000 | 2080 | 2970 | DN50 | / | / |
| 8.6 | 4.4 – 8.4 | |||||||||
| 10.4 | 3.8-7.3 | |||||||||
| OFW75VSD | 7.5 | 7-14 | 2100 | 2975 | ||||||
| 8.6 | 6.6-13.4 | |||||||||
| 10.4 | 5.8-12.1 | |||||||||
| OFW90VSD | 7.5 | 7.5-15.9 | 2150 | 2975 | ||||||
| 8.6 | 7.5-15.7 | |||||||||
| 10.4 | 7-14.1 | |||||||||
| OFA110VSD | 7.5 | 8.7-18.4 | 2600 | 1650 | 2300 | 3750 | 2980 | DN80 | 11 | 30000 |
| 8.6 | 8.1-17.2 | |||||||||
| 10 | 7.5-16 | |||||||||
| OFA132VSD | 7.5 | 10.6-21.8 | 3850 | 2980 | ||||||
| 8.6 | 9.3-19.5 | |||||||||
| 10 | 9.2-19 | |||||||||
| OFA145VSD | 7.5 | 10-23.2 | 3950 | 2980 | ||||||
| 8.6 | 10-21.5 | |||||||||
| 10 | 9.5-19.9 | |||||||||
| OFA160VSD | 7.5 | 12-27.9 | 4050 | 2980 | ||||||
| 8.6 | 12-25.7 | |||||||||
| 10 | 11-23.8 | |||||||||
| OFW110VSD | 7.5 | 9-19.1 | 2600 | 1650 | 1800 | 2700 | 2980 | DN80 | / | / |
| 8.6 | 8.3-17.1 | |||||||||
| 10 | 7.5-16 | |||||||||
| OFW132VSD | 7.5 | 11~23 | 2840 | 2980 | ||||||
| 8.6 | 10-22.6 | |||||||||
| 10 | 10-20.4 | |||||||||
| OFW145VSD | 7.5 | 10-23.5 | 2980 | 2980 | ||||||
| 8.6 | 10-21.7 | |||||||||
| 10 | 10-20.1 | |||||||||
| OFW160VSD | 7.5 | 12~26 | 3571 | 2980 | ||||||
| 8.6 | 12-25.1 | |||||||||
| 10 | 11-23.2 | |||||||||
| OFA200VSD | 7.5 | 16-34.1 | 3100 | 1650 | 2400 | 5600 | 1490 | DN80 | 15 | 40000 |
| 8.6 | 15-31.3 | |||||||||
| 10 | 15-30 | |||||||||
| OFA250VSD | 7.5 | 21-42.4 | 5800 | 1490 | ||||||
| 8.6 | 20-40.4 | |||||||||
| 10 | 18-36.8 | |||||||||
| OFA275VSD | 7.5 | 22-44.3 | 5850 | 1490 | 18.5 | 50000 | ||||
| 8.6 | 21-42.4 | |||||||||
| 10 | 20-40.4 | |||||||||
| OFA315VSD | 7.5 | 17.1-51.4 | ||||||||
| 8.6 | 15.8-47.6 | |||||||||
| 10 | 15.3-46 | |||||||||
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| After-sales Service: | Online Support |
|---|---|
| Warranty: | 12 Months |
| Lubrication Style: | Oil-free |
| Cooling System: | Water Cooling |
| Power Source: | AC Power |
| Cylinder Position: | Horizontal |
| Customization: |
Available
|
|
|---|
.webp)
What are the differences between stationary and portable air compressors?
Stationary and portable air compressors are two common types of air compressors with distinct features and applications. Here are the key differences between them:
1. Mobility:
The primary difference between stationary and portable air compressors is their mobility. Stationary air compressors are designed to be permanently installed in a fixed location, such as a workshop or a factory. They are typically larger, heavier, and not easily movable. On the other hand, portable air compressors are smaller, lighter, and equipped with handles or wheels for easy transportation. They can be moved from one location to another, making them suitable for jobsites, construction sites, and other mobile applications.
2. Power Source:
Another difference lies in the power source used by stationary and portable air compressors. Stationary compressors are usually powered by electricity, as they are designed for continuous operation in a fixed location with access to power outlets. They are connected to the electrical grid or have dedicated wiring. In contrast, portable compressors are available in various power options, including electric, gasoline, and diesel engines. This versatility allows them to operate in remote areas or sites without readily available electricity.
3. Tank Capacity:
Tank capacity is also a distinguishing factor between stationary and portable air compressors. Stationary compressors often have larger storage tanks to store compressed air for extended periods. The larger tanks enable them to deliver a continuous and steady supply of compressed air for longer durations without the need for frequent cycling. Portable compressors, due to their compact size and portability, generally have smaller tank capacities, which may be sufficient for intermittent or smaller-scale applications.
4. Performance and Output:
The performance and output capabilities of stationary and portable air compressors can vary. Stationary compressors are typically designed for high-volume applications that require a consistent and continuous supply of compressed air. They often have higher horsepower ratings, larger motor sizes, and higher air delivery capacities. Portable compressors, while generally offering lower horsepower and air delivery compared to their stationary counterparts, are still capable of delivering sufficient air for a range of applications, including pneumatic tools, inflation tasks, and light-duty air-powered equipment.
5. Noise Level:
Noise level is an important consideration when comparing stationary and portable air compressors. Stationary compressors, being larger and built for industrial or commercial settings, are often equipped with noise-reducing features such as sound insulation and vibration dampening. They are designed to operate at lower noise levels, which is crucial for maintaining a comfortable working environment. Portable compressors, while efforts are made to reduce noise, may produce higher noise levels due to their compact size and portability.
6. Price and Cost:
Stationary and portable air compressors also differ in terms of price and cost. Stationary compressors are generally more expensive due to their larger size, higher power output, and industrial-grade construction. They often require professional installation and may involve additional costs such as electrical wiring and system setup. Portable compressors, being smaller and more versatile, tend to have a lower upfront cost. They are suitable for individual users, contractors, and small businesses with budget constraints or flexible air supply needs.
When selecting between stationary and portable air compressors, it is essential to consider the specific requirements of the intended application, such as mobility, power source availability, air demands, and noise considerations. Understanding these differences will help in choosing the appropriate type of air compressor for the intended use.
.webp)
How are air compressors used in refrigeration and HVAC systems?
Air compressors play a vital role in refrigeration and HVAC (Heating, Ventilation, and Air Conditioning) systems, providing the necessary compression of refrigerant gases and facilitating the heat transfer process. Here are the key ways in which air compressors are used in refrigeration and HVAC systems:
1. Refrigerant Compression:
In refrigeration systems, air compressors are used to compress the refrigerant gas, raising its pressure and temperature. This compressed gas then moves through the system, where it undergoes phase changes and heat exchange to enable cooling or heating. The compressor is the heart of the refrigeration cycle, as it pressurizes and circulates the refrigerant.
2. Refrigeration Cycle:
The compression of refrigerant gas by the air compressor is an essential step in the refrigeration cycle. After compression, the high-pressure, high-temperature gas flows to the condenser, where it releases heat and condenses into a liquid. The liquid refrigerant then passes through an expansion valve or device, which reduces its pressure and temperature. This low-pressure, low-temperature refrigerant then enters the evaporator, absorbing heat from the surrounding environment and evaporating back into a gas. The cycle continues as the gas returns to the compressor for re-compression.
3. HVAC Cooling and Heating:
In HVAC systems, air compressors are used to facilitate cooling and heating processes. The compressor compresses the refrigerant gas, which allows it to absorb heat from the indoor environment in the cooling mode. The compressed gas releases heat in the outdoor condenser unit and then circulates back to the compressor to repeat the cycle. In the heating mode, the compressor reverses the refrigeration cycle, absorbing heat from the outdoor air or ground source and transferring it indoors.
4. Air Conditioning:
Air compressors are an integral part of air conditioning systems, which are a subset of HVAC systems. Compressed refrigerant gases are used to cool and dehumidify the air in residential, commercial, and industrial buildings. The compressor pressurizes the refrigerant, initiating the cooling cycle that removes heat from the indoor air and releases it outside.
5. Compressor Types:
Refrigeration and HVAC systems utilize different types of air compressors. Reciprocating compressors, rotary screw compressors, and scroll compressors are commonly used in these applications. The selection of the compressor type depends on factors such as system size, capacity requirements, efficiency, and application-specific considerations.
6. Energy Efficiency:
Efficient operation of air compressors is crucial for refrigeration and HVAC systems. Energy-efficient compressors help minimize power consumption and reduce operating costs. Additionally, proper compressor sizing and system design contribute to the overall energy efficiency of refrigeration and HVAC systems.
By effectively compressing refrigerant gases and facilitating the heat transfer process, air compressors enable the cooling and heating functions in refrigeration and HVAC systems, ensuring comfortable indoor environments and efficient temperature control.
.webp)
What are the different types of air compressors?
There are several different types of air compressors, each with its own unique design and operating principle. Here’s an overview of the most commonly used types:
1. Reciprocating Air Compressors: Reciprocating air compressors, also known as piston compressors, use one or more pistons driven by a crankshaft to compress air. They operate by drawing air into a cylinder, compressing it with the piston’s up-and-down motion, and discharging the compressed air into a storage tank. Reciprocating compressors are known for their high pressure capabilities and are commonly used in industrial applications.
2. Rotary Screw Air Compressors: Rotary screw air compressors utilize two interlocking screws to compress air. As the male and female screws rotate, the air is trapped between them and gradually compressed as it moves along the screw threads. These compressors are known for their continuous duty cycle, high efficiency, and quiet operation. They are widely used in industrial, commercial, and automotive applications.
3. Centrifugal Air Compressors: Centrifugal air compressors rely on the principle of centrifugal force to compress air. They use a high-speed impeller to accelerate the incoming air and then convert the kinetic energy into pressure energy. Centrifugal compressors are commonly used in large-scale industrial applications that require high volumes of compressed air.
4. Rotary Vane Air Compressors: Rotary vane air compressors employ a rotor with sliding vanes that compress the air. As the rotor rotates, the vanes slide in and out of the rotor, creating compression chambers. Air is drawn in, trapped, and compressed as the vanes move. These compressors are compact, reliable, and suitable for small to medium-sized applications.
5. Axial Flow Air Compressors: Axial flow air compressors are primarily used in specialized applications such as aircraft engines and gas turbines. They utilize a series of rotating and stationary blades to compress air in a continuous flow. Axial flow compressors are known for their high flow rates and are designed for applications that require large volumes of compressed air.
6. Scroll Air Compressors: Scroll air compressors consist of two interlocking spirals or scrolls that compress the air. One spiral remains stationary while the other orbits around it, creating a series of expanding and contracting pockets that compress the air. Scroll compressors are compact, reliable, and commonly used in applications where low noise and oil-free air are required, such as medical and dental equipment.
These are just a few examples of the different types of air compressors available. Each type has its own advantages, capabilities, and ideal applications. The choice of air compressor depends on factors such as required pressure, flow rate, duty cycle, noise level, oil-free operation, and specific application requirements.
editor by CX 2024-04-03
China manufacturer CZPT Car Parts Part Screw Oilless High Pressure Portable Industrial Rotary Used Mini Single Max Dental AC Piston Air Pump Compressor near me manufacturer
Product Description
Scope of application:
Making use of for Pushing Pneumatic Nail Gun, Air Screw , Spray Painting Gun to work, also use to miniature instrument, blowing dust, Air inflation for modest vehicle and so on.
Product Characteristic:
- Higher Electrical power, high efficiency, minimal vitality, large reliability.
- Piston Ring: New ECO circle, lower friction coefficient, Car lubricating method.
- Cylinder Liner: Floor hardening, deplete hardness, Accelerate the heat transfer, extended employing time.
- Suction and exhaust valve: Employing sophisticated foreign technologies.
- Several Stress: Overload defense
How to Decide on the Correct Air Compressor
An air compressor makes use of pressurized air to energy a selection of resources. They are most typically utilized to energy nailers and impact wrenches. Other well-liked makes use of for air compressors contain paint sprayers and effect wrenches. While all air compressors have the identical basic building, their specialty differs. Ultimately, their variances come down to the volume of air they can press. Study on for details on each and every type of air compressor. These instruments are great for many diverse reasons, and choosing the appropriate air compressor is dependent on your distinct needs.
Electric motor
Although purchasing an electric motor for air compressor, compatibility is a essential element. Not all motors work with the very same kind of air compressor, so it truly is essential to check out the manufacturer’s guidelines ahead of getting. By undertaking this, you can steer clear of throwing away cash on an incompatible motor. Yet another critical thing to consider is pace. A motor’s pace is its charge of rotation, calculated in revolutions for every moment. It is essential that you buy a motor with sufficient velocity to satisfy the requirements of your air compressor.
Typically, an electric motor for air compressor is 1.5 hp. It is perfect for use with medical tools and metal-chopping devices. It also performs properly below constant operation and offers a substantial performance and power-conserving performance. Additionally, it functions an attractive price, producing it a excellent selection for a broad range of apps. If you are hunting for a motor for an air compressor, look no additional than a ZYS collection.
A motor’s safety class indicates how the motor will work. Security courses are specified by the IEC 60034-5. These are mentioned with two digits and represent the safety in opposition to sound objects and drinking water. For case in point, an IP23 ranking signifies that the motor will be protected from strong objects, even though IP54 implies that it will shield from dust and h2o sprayed from all directions. It is essential to decide on a motor with the right defense class for your air compressor.
When picking an electric motor, you must consider whether or not it’s suitable with the brand of air compressor. Some may be compatible, even though other folks may possibly require advanced electronics abilities to restore. Even so, most air compressors are covered by guarantee, so it is important to examine with the producer if the warranty is still in influence before you spend a dime on a substitute. The motor need to be changed if it has unsuccessful to carry out as developed.
Oil tub
Air compressors require proper lubrication to purpose proficiently. The piston must draw air with nominal friction. Depending on their design and style, air compressors can either be oil-lubricated or oil-cost-free. The previous employs oil to decrease piston friction, even though the latter splashes it on the cylinder bearings and partitions. This sort of air compressors are typically known as oil-flooded air compressors. In get to keep their oil baths thoroughly clean, they are recommended for use in locations with higher dust amounts.
Begin/quit control
An air compressor can be controlled by a commence/stop handle. This sort of management sends a sign to the main motor that activates the compressor when the demand from customers for air falls below a preset limit. This control approach is efficient for smaller sized air compressors and can be valuable for lowering strength fees. Start off/cease control is most effective in applications the place air strain does not alter often and the place the compressor is not needed to operate repeatedly.
To troubleshoot this issue, you need to have to verify the energy provide of your compressor. To examine the supply side, use a voltage check to determine if energy is flowing to the compressor. Make certain that the energy supply to the compressor is constant and stable at all instances. If it fluctuates, the compressor may not start off or end as anticipated. If you can’t locate the dilemma with the air compressor energy provide, it may be time to change it.
In addition to the start/stop control, you might want to purchase further air receivers for your air compressor. These can enhance the ability of air stored and decrease the variety of instances it starts and stops. An additional way to reduce the variety of starts per hour is to insert much more air receivers. Then, you can alter the management to match your demands. You can also put in a stress gauge that monitors the compressor’s functionality.
Begin/quit manage for air compressors can be intricate, but the basic factors are fairly easy to comprehend. A single way to test them is to switch the compressor on or off. It is typically situated on the exterior of the motor. If you might be not sure of the location of these parts, check out the capacitors and make sure that the air compressor is not managing although you are not employing it. If it does, consider to get rid of the capacitor.
Variable displacement handle is one more way to modify the sum of air flowing into the compressor. By managing the volume of air, the manage can delay the use of further compressors until finally more necessary air is offered. In addition to this, the gadget can also monitor the energy utilised in the compressor. This control technique can end result in significant vitality savings. You can even help save on the amount of electrical power by using variable displacement manage. It is essential for efficient compressed air techniques.
Variable velocity generate
A VFD, or variable frequency travel, is a variety of electric motor that adjusts its pace to match the demand from customers for air. It is an productive way to decrease energy expenses and improve system dependability. In reality, reports have proven that a 20% reduction in motor speed can help save up to 50% of vitality. In addition, a VFD can monitor added variables this sort of as compressor oil pressure and motor temperature. By getting rid of guide checks, a VFD will improve the performance of the application and reduce running expenses.
In addition to lowering energy expenses, variable-velocity drives also boost efficiency. A variable-speed air compressor reduces the chance of program leaks by 30 per cent. It also reduces the chance of system leaks by decreasing stress in the technique. Due to the fact of these advantages, several governments are advertising this engineering in their industries. Many even offer incentives to support organizations up grade to variable-speed drives. For that reason, the variable-speed drive can benefit several air compressor installations.
One key gain of a variable-velocity push is its ability to enhance energy use. Variable frequency drives are in a position to ramp up and down to match the demand for air. The purpose is to improve the stress and movement in the technique so that the very best “dead band” takes place in between forty p.c and eighty per cent of full load. A variable-pace compressor will also improve vitality performance simply because of its programmability.
A variable-speed air compressor can also be utilized to manage the amount of air that is compressed by the method. This attribute adjusts the frequency of electricity provided to the motor dependent on the demand from customers. If the desire for air is reduced, the frequency of the motor will lessen to help save vitality. On the other hand, if there is an surplus demand from customers for air, the variable-speed compressor will increase its pace. In addition, this sort of air compressor is much more successful than its mounted-pace counterpart.
A VFD has a lot of benefits for compressed air methods. Initial, it aids stabilize the strain in the pipe network, thus reducing the electricity losses thanks to upstream pressure. It also helps decrease the power consumption brought on by fluctuations in upward pressure. Its rewards are also far-achieving. And as prolonged as the air strain and air provide is effectively sized, a VFD will help optimize the efficiency of compressed air programs.