Product Description

Industrial Silent/Mute Medical Dry Oil Free Oilless Direct Drive Rotary Double Screw Type Air Compressor Advantages

1.Clean air 100% oil-free, class 0 oil free air according to ISO8537-1  
 
2.Adopt GHH air end made in Germany
 
3.Technology patent used in oil free compressed air system
 
4.Significant energy saving, environmental-friendly and pollution-free
 
5.Low operation and maintenance cost
 
6.Powerful MAM microcomputer controller and touch screen
 
7.Designed especially for medical, pharmacy, instrument, coating, chemical industry and food processing, etc. 

DENAIR Dry Type Oil Free Screw Air Compressor In Hannover Messe 2017
 

DENAIR Class 0 Certification

Comparison between dry oil free compressor and lubricated screw air compressor

Dry Type Oil-free Air Compressor Technical Parameters

Model	Maximum working pressure		Capacity(FAD)*				Installed motor power		Cooling Method	Noise Level**	Dimensions (mm)			Weight	Air  Outlet Pipe Diameter
			50 Hz		60 Hz
	bar(e)	psig	m³/min	cfm	m³/min	cfm	kW	hp		dB(A)	L	W	H	kG
DWW-55	7	102	9.35	330	8.06	285	55	75	Air Cooling W-water Cooling	74	2000	1200	1650	1900	G1-1/2″
	8	116	9.17	324	8.04	284	55	75		74	2000	1200	1650	1900	G1-1/2″
	10	145	8.11	286	7.05	249	55	75		74	2000	1200	1650	1900	G1-1/2″
DWW-55W	7	102	9.35	330	8.06	285	55	75		74	2000	1200	1650	1800	G1-1/2″
	8	116	9.17	324	8.04	284	55	75		74	2000	1200	1650	1800	G1-1/2″
	10	145	8.11	286	7.05	249	55	75		74	2000	1200	1650	1800	G1-1/2″
DWW-75	7	102	12.71	449	11.56	408	75	100		74	2000	1200	1650	2100	DN50
	8	116	11.78	416	11.53	407	75	100		74	2000	1200	1650	2100	DN50
	10	145	11.57	409	10.11	357	75	100		74	2000	1200	1650	2100	DN50
DWW-75W	7	102	12.71	449	11.56	408	75	100		74	2000	1200	1650	2000	DN50
	8	116	11.78	416	11.53	407	75	100		74	2000	1200	1650	2000	DN50
	10	145	11.57	409	10.11	357	75	100		74	2000	1200	1650	2000	DN50
DWW-90	7	102	14.6	515	13.61	480	90	120		76	2800	1800	1860	2800	DN50
	8	116	14.32	506	13.47	476	90	120		76	2800	1800	1860	2800	DN50
	10	145	13.55	478	12.5	441	90	120		76	2800	1800	1860	2800	DN50
DWW-90W	7	102	14.6	515	13.61	480	90	120		76	2800	1800	1860	2180	DN50
	8	116	14.32	506	13.47	476	90	120		76	2800	1800	1860	2180	DN50
	10	145	13.55	478	12.5	441	90	120		76	2800	1800	1860	2180	DN50
DWW-110	7	102	20.27	716	N/A***	N/A***	110	150		78	2800	1800	1860	3200	DN65
	8	116	19.03	672	N/A***	N/A***	110	150		78	2800	1800	1860	3200	DN65
	10	145	16.65	588	15.57	550	110	150		78	2800	1800	1860	3200	DN65
DWW-110W	7	102	20.27	716	N/A***	N/A***	110	150		78	2800	1800	1860	3050	DN65
	8	116	19.03	672	N/A***	N/A***	110	150		78	2800	1800	1860	3050	DN65
	10	145	16.65	588	15.57	550	110	150		78	2800	1800	1860	3050	DN65
DWW-132	7	102	23.94	845	20.09	709	132	175		78	2800	1800	1860	3340	DN65
	8	116	22.47	793	19.87	702	132	175		78	2800	1800	1860	3340	DN65
	10	145	20.19	713	N/A***	N/A***	132	175		78	2800	1800	1860	3340	DN65
DWW-132W	7	102	23.94	845	20.48	723	132	175		78	2800	1800	1860	3170	DN65
	8	116	22.47	793	20.26	715	132	175		78	2800	1800	1860	3170	DN65
	10	145	20.19	713	19.82	700	132	175		78	2800	1800	1860	3170	DN65
DWW-160	7	102	27.26	962	25.47	899	160	215		78	2800	1800	1860	3700	DN65
	8	116	25.86	913	25.17	889	160	215		78	2800	1800	1860	3700	DN65
	10	145	23.87	843	23.18	819	160	215		78	2800	1800	1860	3700	DN65
DWW-160W	7	102	27.26	962	25.47	899	160	215		78	2800	1800	1860	3300	DN65
	8	116	25.86	913	25.17	889	160	215		78	2800	1800	1860	3300	DN65
	10	145	23.87	843	23.8	819	160	215		78	2800	1800	1860	3300	DN65
DWW-185	7	102	30.19	1066	28.88	1571	185	250		78	2800	1800	1860	3900	DN65
	8	116	29.53	1043	28.3	999	185	250		78	2800	1800	1860	3900	DN65
	10	145	27.2	960	27.17	960	185	250		78	2800	1800	1860	3900	DN65
DWW-185W	7	102	30.19	1066	28.88	1571	185	250		78	2800	1800	1860	3460	DN65
	8	116	29.53	1043	28.3	999	185	250		78	2800	1800	1860	3460	DN65
	10	145	27.2	960	27.17	960	185	250		78	2800	1800	1860	3460	DN65
DWW-200W	7	102	36.41	1286	31.14	1100	200	270		78	3100	2150	2200	4300	DN100
	8	116	33.86	1196	30.52	1078	200	270		78	3100	2150	2200	4300	DN100
	10	145	30.35	1071	28.82	1018	200	270		78	3100	2150	2200	4300	DN100
DWW-220W	7	102	38.99	1377	37.54	1325	220	300		78	3100	2150	2200	4500	DN100
	8	116	37.93	1339	36.78	1299	220	300		78	3100	2150	2200	4500	DN100
	10	145	33.79	1193	31.08	1097	220	300		78	3100	2150	2200	4500	DN100
DWW-250W	7	102	47.26	1669	41.53	1466	250	350		78	3100	2150	2200	4550	DN100
	8	116	43.31	1529	40.69	1437	250	350		78	3100	2150	2200	4550	DN100
	10	145	38.88	1373	37.43	1322	250	350		78	3100	2150	2200	4550	DN100
DWW-280W	7	102	51.04	1802	N/A***	N/A***	280	375		80	3400	2400	2200	4800	DN100
	8	116	47.24	1668	N/A***	N/A***	280	375		80	3400	2400	2200	4800	DN100
	10	145	43.26	1528	41.4	1462	280	375		80	3400	2400	2200	4800	DN100
DWW-315W	7	102	52.03	1837	N/A***	N/A***	315	425		80	3400	2400	2200	5000	DN100
	8	116	51.04	1802	N/A***	N/A***	315	425		80	3400	2400	2200	5000	DN100
	10	145	47.18	1666	N/A***	N/A***	315	425		80	3400	2400	2200	5000	DN100

Low Pressure Dry Type Oil-free Air Compressor Technical Parameters

Model	Maximum working pressure		Capacity(FAD)*				Installed motor power		Cooling Method	Noise Level**	Dimensions (mm)			Weight	Air Outlet Pipe Diameter
			50 Hz		60 Hz
	bar(e)	psig	m³/min	cfm	m³/min	cfm	kW	hp		dB(A)	L	W	H	kG
DWL-55-2	2.5	37	15.33	541	14.4	508	55	75	Air Cooling W-water Cooling	69	2100	1500	1790	2500	DN100
DWL-55-3	3.5	51	12.78	451	10.85	383	55	75		69	2100	1500	1790	2500	DN100
DWL-75-2	2.5	37	19.92	703	19.85	701	75	100		69	2100	1500	1790	2650	DN100
DWL-75-3	3.5	51	16.3	575	15.86	560	75	100		69	2100	1500	1790	2650	DN100
DWL-90-2	2.5	37	26.07	921	26.28	928	90	120		72	2800	1800	1860	2750	DN100
DWL-90-3	3.5	51	19.54	690	18.3	646	90	120		72	2100	1500	1790	2750	DN100
DWL-110(W)-2	2.5	37	33.16	1171	29.82	1053	110	150		72	3100	2150	2200	3500	DN150
DWL-110(W)-3	3.5	51	25.6	904	23.9	884	110	150		72	2800	1800	1860	3000	DN150
DWL-132(W)-2	2.5	37	40.24	1421	36.99	1271	132	175		72	3100	2150	2200	3600	DN150
DWL-132(W)-3	3.5	51	27.23	961	29.43	1039	132	175		72	2800	1800	1860	3100	DN150
DWL-160(W)-2	2.5	37	49.42	1745	45.2	1596	160	215		76	3100	2150	2200	3900	DN150
DWL-160(W)-3	3.5	51	35.75	1262	35.12	1240	160	215		76	3100	2150	2200	3800	DN150
DWL-185(W)-2	2.5	37	56.02	1989	52.71	1861	185	250		79	3400	2400	2200	4100	DN150
DWL-185(W)-3	3.5	51	42.21	1490	40.28	1422	185	250		79	3400	2400	2200	4000	DN150

*) FAD in accordance with ISO 1217 : 2009, Annex C: Absolute intake pressure 1 bar (a), cooling and air intake temperature 20 °C
**) Noise level as per ISO 2151 and the basic standard ISO 9614-2, operation at maximum operating pressure and maximum speed; tolerance: ± 3 dB(A)
***) TBD-To Be Discussed
****) W-Water cooling

DENAIR Factory

Why Choose DENAIR ?
1.Original Germany AERZEN/DENAIR air end,larger air delivery,lower noise.

2. Oil free screw air compressor Pass CE, ISO9001 Quality Certification

3. One of 3 biggest air compressor manufacturer in China

4. Complete before-on-after sales service

5. Immediate reply or solution by email or call
6.Special oil gas separator with patents

7.High efficiency motor, up to 96%

FAQ

Q1: Are you factory or trade company?  
A1: We are factory.

Q2: What the exactly address of your factory? 
A2: Our company is located in No. 6767, Tingfeng Rd. Xihu (West Lake) Dis.n District, ZheJiang  201502, China
And our factory is located in No. 366, YangzhuangBang Street, Pingxing Rd., Xindai Town, HangZhou, ZHangZhoug Province, China  

Q3: Warranty terms of your machine? 
A3: Two years warranty for the machine and technical support according to your needs.

Q4: Will you provide some spare parts of the machines? 
A4: Yes, of course.

Q5: How long will you take to arrange production? 
A5: 380V 50HZ we can delivery the goods within 10 days. Other electricity or other color we will delivery within 22 days

Q6: Can you accept OEM orders? 
A6: Yes, with professional design team, OEM orders are highly welcome

  /* October 22, 2571 15:47:17 */(()=>{function d(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

View More

What Are the Key Components of a Water-Lubrication System in Compressors?

A water-lubrication system in compressors typically consists of several key components that work together to provide lubrication and cooling to the compressor. Here’s a detailed explanation of the key components of a water-lubrication system in compressors:

Water Supply:

• Water Source: The water-lubrication system requires a water source that provides clean and suitable water for lubrication. The water can be sourced from various places such as municipal water supply, well water, or treated water from a dedicated water treatment system.
• Water Inlet: The water inlet is the entry point where water enters the compressor’s lubrication system. It may include valves, filters, or other components to regulate and control the water flow.

Lubrication System:

• Water Jackets: Water jackets are channels or passages built into the compressor’s housing or cylinder walls. These jackets allow water to circulate and come into direct contact with the compressor’s moving parts, providing lubrication and cooling. The water jackets help dissipate heat generated during compression and prevent excessive temperatures that could damage the compressor.
• Water Pump: The water pump is responsible for circulating water through the water jackets and the entire lubrication system. It provides the necessary pressure to ensure adequate water flow and distribution to the compressor’s components.
• Flow Control Devices: Flow control devices, such as valves or flow restrictors, are often included in the water-lubrication system to regulate and control the water flow rate. These devices help maintain optimal water pressure and flow throughout the system, ensuring effective lubrication and cooling.
• Water Filters: Water filters are used to remove impurities, sediment, or debris from the water before it enters the lubrication system. They help prevent blockages, protect the compressor’s components from damage, and maintain the quality of the water used for lubrication.
• Water Separator: A water separator is a component that removes excess water, moisture, or condensate from the compressed air. It ensures that the compressed air leaving the compressor is dry and free from excess water content, preventing potential issues such as corrosion or contamination downstream.

Control and Monitoring:

• Temperature Sensors: Temperature sensors are used to monitor the temperature of the water and the compressor components. They provide feedback to the control system, allowing for adjustments in water flow or cooling measures if required to maintain optimal operating conditions.
• Pressure Sensors: Pressure sensors are employed to monitor the water pressure within the lubrication system. They help ensure that the water flow and pressure are within the desired range, allowing for proper lubrication and cooling of the compressor.
• Control System: A control system, which may include a combination of sensors, valves, and controllers, is responsible for regulating and maintaining the operation of the water-lubrication system. It can monitor various parameters, such as temperature, pressure, and flow, and make adjustments as needed to ensure efficient and safe operation.

Regular maintenance, inspection, and monitoring of the key components of the water-lubrication system are essential to ensure its proper functioning and to prevent any issues that could affect the performance and longevity of the compressor.

Are There Any Restrictions on the Type of Water Used in Water-Lubricated Compressors?

When it comes to water-lubricated compressors, there are certain restrictions and considerations regarding the type of water that can be used. Here’s a detailed explanation of the restrictions on the type of water used in water-lubricated compressors:

Water Quality:

• Cleanliness: The water used in water-lubricated compressors should be clean and free from excessive impurities or contaminants. Impurities like sediment, minerals, or debris can cause blockages, wear, or damage to the compressor components. It is important to use water that meets the cleanliness requirements specified by the manufacturer.
• Chemical Composition: The chemical composition of the water can also be a factor to consider. Water with high mineral content or hardness can lead to scale formation, which can affect the performance and lifespan of the compressor. Water treatment methods, such as water softening or filtration, may be necessary to maintain the desired water quality.

Water Temperature:

• Freezing Point: In cold climates, it is important to ensure that the water used in the compressor’s lubrication system does not freeze. Freezing can cause operational issues and damage to the equipment. The water temperature should be maintained above freezing point through insulation, heating, or other suitable methods.
• Temperature Range: Water-lubricated compressors may have specific temperature requirements to ensure optimal operation and lubrication. Operating the compressor with water temperatures outside the recommended range can affect its performance and lifespan. It is important to adhere to the manufacturer’s guidelines regarding the acceptable temperature range for the water used.

Water Treatment:

• Water Treatment Systems: Depending on the quality of the available water supply, it may be necessary to use water treatment systems to ensure the water meets the required standards. Water treatment systems can help remove impurities, control chemical composition, and maintain the desired water quality for effective lubrication and cooling.
• Water Treatment Frequency: Regular maintenance and monitoring of the water treatment systems are essential to ensure their effectiveness. The frequency of water treatment, such as filtration or chemical treatment, may vary depending on the specific conditions and the water quality in the area.

Manufacturer Recommendations:

• Consulting the Manufacturer: It is important to consult the manufacturer’s guidelines and recommendations regarding the type of water to be used in water-lubricated compressors. Manufacturers may specify the acceptable water quality parameters, treatment methods, or restrictions to ensure optimal performance and longevity of the compressor.

By considering the cleanliness, chemical composition, temperature, and appropriate water treatment measures, the type of water used in water-lubricated compressors can be optimized to meet the requirements specified by the manufacturer. Adhering to these restrictions helps ensure efficient and reliable operation of the compressor while minimizing the risk of component damage or performance issues.

Are Water-Lubricated Air Compressors Suitable for Food and Beverage Industries?

Water-lubricated air compressors can be highly suitable for the food and beverage industries due to several reasons:

1. Food-grade lubrication: Water is a natural and food-grade lubricant. It does not introduce harmful contaminants or chemicals into the production process, ensuring the safety and quality of food and beverage products. Water lubrication eliminates the risk of oil contamination in food products that can occur with oil-lubricated compressors.
2. Compliance with hygiene standards: The food and beverage industries have strict hygiene standards and regulations. Water-lubricated air compressors align with these standards as water is a clean and sanitary lubricant. It minimizes the risk of cross-contamination and helps maintain a hygienic production environment.
3. Reduced risk of product contamination: Water lubrication eliminates the possibility of oil carryover or oil vapor entering the compressed air system. This reduces the risk of oil contamination in food and beverage products, ensuring their purity and quality.
4. Improved product shelf life: Oil-lubricated compressors can release oil aerosols or vapors that may negatively affect the taste, odor, or quality of food and beverage products. Water-lubricated compressors eliminate this concern, contributing to improved product shelf life and maintaining the desired sensory attributes.
5. Easy cleanup and maintenance: Water lubrication simplifies cleanup and maintenance procedures in food and beverage production facilities. Water does not leave behind sticky residues or require extensive cleaning processes. It facilitates faster and more efficient cleaning, reducing downtime and improving overall productivity.
6. Environmental friendliness: Water is a sustainable and environmentally friendly lubricant choice. It is non-toxic, biodegradable, and does not contribute to air or water pollution. Using water-lubricated air compressors aligns with the sustainability goals of the food and beverage industries.

Considering these factors, water-lubricated air compressors are well-suited for the food and beverage industries, ensuring compliance with hygiene standards, preventing product contamination, and promoting a safe and sustainable production environment.

editor by lmc 2025-02-24