China 780 M3/H Dvp-800 Dry Screw Vacuum Pump with Hot selling

Merchandise Description

 

Operating principle

The vacuum in dry screw pumps is designed by way of 2 parallel-organized screw rotors that rotate in reverse instructions. These rotors lure the gas coming in via the inlet and produce it to the gasoline discharge or strain side. As the gasoline is obtaining compressed, there is no speak to amongst the rotors. This does away with any want for the compression chamber to have any running fluids or lubrication.
 The lubricant employed to lubricate the gears and shaft seal is sealed in the gearbox by the shaft seal. The pump can be cooled both directly by circulating cooling drinking water or by a cooling unit with admirer and radiator.
The dry screw vacuum pump adopts a specific rotor pitch design and style, compared with the ordinary rotor pitch design and style, decrease the vitality intake by about thirty%, the temperature increase of the exhaust end is reduced by about a hundred ºC, the reliability and balance of the operation of the merchandise is drastically improved, can be suitable for any working conditions of vacuum.
The dry screw pumps can be widely employed in solvent restoration, vacuum drying, concentration, crystallization, distillation and other processes in the chemical and pharmaceutical industries, vacuum extrusion and molding in the plastic and rubber industries, vacuum degassing in the metallurgical business vacuum degassing and drying in the photo voltaic energy, microelectronics, lithium battery and other industries.

Pump entire body and stop caps:  large-strength forged iron.
Pump body and finish caps:  large energy cast iron.
Screw rotor:                        ductile cast iron.
Anti-corrosion coating:        corrosion-resistant Hastelloy.
Synchronous gears:            alloy steel.
Radial lip seal:                     imported PTFE mixture or
                                            substantial-temperature resistant fluorine rubber
Seal bushings:                    stainless metal area protected with ceramic.

Stream chart

 

Primary functions

one. The screw rotor is designed with variable pitch construction, the final vacuum can attain under 1Pa, which can fulfill all sorts of vacuum processing from ambiance to substantial vacuum.
2. Oil cost-free – Adapt to numerous unique working circumstances for reliable use.
3. It can function reliably in the force selection from atmosphere to several Pa.
4. No friction in between transferring elements, basic structure, reduce procedure and routine maintenance price.
5. Nitrogen seal and CZPT seal design is optional, which has the reward of excellent trustworthiness, minimal expense of use, simple maintenance.
six. The rotor is dynamically well balanced at high pace and the motor is linked by flange, with high concentricity, minimal vibration and minimal sounds.
seven. Hastelloy anti-corrosion coating is optional for rotor surface area, condensable content is not easy to condense in the pump cavity, greater corrosion resistance.
eight. In comparison with oil seal pump, liquid ring pump, there is no squander fuel, no waste liquid, no squander oil emission, strength saving and environmental pleasant.
It can be used on your own or with Roots vacuum pump, air-cooled Roots vacuum pump, molecular vacuum pump, and so forth. to get an oil-free of charge large vacuum program.

The advantage of dry screw vacuum pump in comparison to liquid ring vacuum pump:

    -Shorten the process cycle and boost generation effectiveness
    -Decrease water use
    -Conserve energy
    -Increase merchandise good quality
    -Can get better solvent by decreasing the drying time of goods
    -Minimize the value of wastewater and squander gasoline treatment method

A Situation in a pharmaceutical manufacturing unit
Approach introduction:The penicillin sodium salt remedy is fed into the crystallization tank by way of vacuum. By steam heating, agitator stirring, and introducing butanol, the h2o and butanol in the penicillin solution are pumped into the condenser and condensed into the liquid amassing tank, which can be reused.

Process specifications:
one. The quantity of crystallization tank is 7.5m³, and about 4.5m³ penicillin solution is included in the approach.
two. Prior to moving into the crystallization tank, the drinking water content material of penicillin resolution is about twenty%, and right after crystallization, the h2o content is required to be about 1%.
3. Vacuum feeding for 2h, then incorporating butanol for 30min, and then starting to crystallize. The method requires lower temperature and fast speed, and the decrease the temperature, the much better the quality of penicillin. The shorter the reaction time, the much better.
four. Vacuum diploma requirements: the vacuum degree shall be held over -.097MPa. Substantial vacuum degree can minimize the reaction temperature and shorten the reaction time.

The previous vacuum technique was 2BE1252+air ejector, which is now transformed into a dry screw vacuum pump. The comparison desk of examination information is as follows:

vacuum program	2BE1252+ejector	DVP 1600 screw pump
Feeding time (h)	two	1.five
Liquid temperature at the beginning of crystallization (ºC)	31.5	sixteen.6
Crystallization time (h)	six	four.five
Time from crystallization to liquid coming out (min)	thirty	15
Crystal high quality	common	very good
Electrical power consumption (KW)	45	37
H2o use (m3)	26.four	.seventy two

Financial reward investigation:

	Expense saving(USD)	Remark
Drinking water consumption and treatment	one hundred thirty	Drinking water cost: $.65/mthree, drinking water therapy: thirty/m3
Power	fifteen	$.15/Kwh
Labor, creation efficiency	forty three	Lowered from 6 hour to 4.5 hour
Sum up	188

Please contact us for a detailed report of economic benefit evaluation for your programs! 

 

Configuration
Standard configuration:
Equipment base, pump head, coupling, motor, driving display screen, air inlet connector, verify valve, vacuum gauge, guide filling valve exhaust port muffler.
Optional components:
Inlet filter, inlet condenser, solvent flushing gadget, nitrogen purging gadget, nitrogen sealing gadget, exhaust port condenser, solenoid filling valve, cooling water stream switch, temperature sensor, stress transmitter.

Purposes

Leak Detection	Metallurgy	Industrial furnace	Lithium Battery
Chemical, pharmaceutical	Wind tunnel test	Electricity Market	Vacuum coating
Microelectronics business	Drying Process	Packaging and Printing	Photo voltaic Strength
Exhaust fuel recovery

Product Parameters

Technological data of Variable pitch Dry screw vacuum pump

Spec. Design	Nominal pumping pace(50Hz)	Ultimate stress	Nominal motor ranking (50Hz)	Nominal motor speed  (50Hz)	Sound level   Lp	Maximum cooling water essential	Suction Relationship measurement	Discharge Link dimensions	Bodyweight (With out Motor)
	m³/h	Pa	kw	rpm	dB(A)	L/min	mm	mm	Kg
DVP-one hundred eighty	181	two	4	2900	eighty two	8	fifty	40	280
DVP-360	354	two	7.5	2900	eighty three	10	fifty	40	four hundred
DVP-540	535	two	11	2900	eighty three	ten	fifty	forty	500
DVP-650	645	1	15	2900	eighty four	20	65	fifty	600
DVP-800	780	1	22	2900	86	thirty	a hundred	80	800
DVP-1600	1450	one	37	2900	86	forty	a hundred twenty five	one hundred	1200

Specialized knowledge of Continual pitch Dry screw vacuum pump

Spec. Design	Nominal pumping velocity(50Hz)	Ultimate pressure	Nominal motor ranking (50Hz)	Nominal motor speed  (50Hz)	Sound level   Lp	Highest cooling drinking water needed	Suction Connection dimensions	Discharge Relationship size	Bodyweight (With out Motor)
	m³/h	Pa	kw	rpm	dB(A)	L/min	mm	mm	Kg
DSP-140	143	five	four	2900	eighty two	ten	50	forty	240
DSP-280	278	5	7.5	2900	eighty three	twenty	50	forty	350
DSP-540	521	five	fifteen	2900	eighty three	30	sixty five	fifty	550
DSP-650	617	five	eighteen.five	2900	eighty four	45	65	fifty	630
DSP-720	763	5	22	2900	eighty five	55	eighty	eighty	780
DSP-one thousand	912	5	thirty	2900	86	70	one hundred	80	880

Observe: The cooling drinking water volume of the dry screw vacuum pump presented in the table is the quantity below 20ºC place temperature water. When the dry screw vacuum pump employs cooling system, the cooling h2o will be elevated, the big difference of inlet and outlet drinking water temperature is typically managed beneath 7ºC is acceptable.

 

Dimension

 

 

FAQ

Q: What details ought to I provide for an inquiry?
A: You can inquire based on the design directly, but it is constantly advisable that you speak to us so that we can support you to check out if the pump is the most appropriate for your application.

Q: Can you make a tailored vacuum pump?
A: Yes, we can do some special patterns to meet up with consumer apps. Such as customized sealing systems, speical surface therapy can be utilized for roots vacuum pump and screw vacuum pump. Please speak to us if you have particular requirements. 

Q: I have troubles with our vacuum pumps or vacuum techniques, can you offer some help?
A: We have application and design and style engineers with a lot more than thirty a long time of expertise in vacuum purposes in various industries and assist a whole lot of customers solve their problems, this sort of as leakage troubles, vitality-saving solutions, far more setting-friendly vacuum methods, etc. You should make contact with us and we are going to be extremely satisfied if we can offer any support to your vacuum program.

Q: Can you design and make personalized vacuum systems?
A: Of course, we are good for this.

Q: What is your MOQ?
A: 1 piece or 1 set.

Q: How about your shipping and delivery time?
A: 5-10 functioning days for the normal vacuum pump if the quantity is under twenty items, twenty-thirty functioning times for the conventional vacuum method with significantly less than 5 sets. For much more quantity or special specifications, remember to contact us to check out the direct time.

Q: What are your payment phrases?
A: By T/T, 50% advance payment/deposit and fifty% paid before shipment.

Q: How about the warranty?
A: We offer 1-year warranty (apart from for the wearing parts).

Q: How about the provider?
A: We supply distant video technological assist. We can send out the services engineer to the site for some unique specifications.

US $21,000-23,000 / Piece |

1 Piece (Min. Order)

###

After-sales Service:	Online Video Instruction
Warranty:	1 Year
Nominal Pumping Speed(50Hz):	780 M3/H
Ultimate Pressure:	1 PA
Nominal Motor Rating(50Hz):	22 Kw
Nominal Motor Speed(50Hz):	2900 Rpm

###

vacuum system	2BE1252+ejector	DVP 1600 screw pump
Feeding time (h)	2	1.5
Liquid temperature at the beginning of crystallization (ºC)	31.5	16.6
Crystallization time (h)	6	4.5
Time from crystallization to liquid coming out (min)	30	15
Crystal quality	average	good
Power consumption (KW)	45	37
Water consumption (m3)	26.4	0.72

###

	Cost saving(USD)	Remark
Water consumption and treatment	130	Water cost: $0.65/m3, water treatment: 30/m3
Power	15	$0.15/Kwh
Labor, production efficiency	43	Reduced from 6 hour to 4.5 hour
Sum up	188

###

Leak Detection	Metallurgy	Industrial furnace	Lithium Battery
Chemical, pharmaceutical	Wind tunnel test	Power Industry	Vacuum coating
Microelectronics industry	Drying Process	Packaging and Printing	Solar Energy
Exhaust gas recovery

###

Spec. Model	Nominal pumping speed(50Hz)	Ultimate pressure	Nominal motor rating (50Hz)	Nominal motor speed  (50Hz)	Noise level   Lp	Maximum cooling water required	Suction Connection size	Discharge Connection size	Weight (Without Motor)
	m³/h	Pa	kw	rpm	dB(A)	L/min	mm	mm	Kg
DVP-180	181	2	4	2900	82	8	50	40	280
DVP-360	354	2	7.5	2900	83	10	50	40	400
DVP-540	535	2	11	2900	83	10	50	40	500
DVP-650	645	1	15	2900	84	20	65	50	600
DVP-800	780	1	22	2900	86	30	100	80	800
DVP-1600	1450	1	37	2900	86	40	125	100	1200

###

Spec. Model	Nominal pumping speed(50Hz)	Ultimate pressure	Nominal motor rating (50Hz)	Nominal motor speed  (50Hz)	Noise level   Lp	Maximum cooling water required	Suction Connection size	Discharge Connection size	Weight (Without Motor)
	m³/h	Pa	kw	rpm	dB(A)	L/min	mm	mm	Kg
DSP-140	143	5	4	2900	82	10	50	40	240
DSP-280	278	5	7.5	2900	83	20	50	40	350
DSP-540	521	5	15	2900	83	30	65	50	550
DSP-650	617	5	18.5	2900	84	45	65	50	630
DSP-720	763	5	22	2900	85	55	80	80	780
DSP-1000	912	5	30	2900	86	70	100	80	880

US $21,000-23,000 / Piece |

1 Piece (Min. Order)

###

After-sales Service:	Online Video Instruction
Warranty:	1 Year
Nominal Pumping Speed(50Hz):	780 M3/H
Ultimate Pressure:	1 PA
Nominal Motor Rating(50Hz):	22 Kw
Nominal Motor Speed(50Hz):	2900 Rpm

###

vacuum system	2BE1252+ejector	DVP 1600 screw pump
Feeding time (h)	2	1.5
Liquid temperature at the beginning of crystallization (ºC)	31.5	16.6
Crystallization time (h)	6	4.5
Time from crystallization to liquid coming out (min)	30	15
Crystal quality	average	good
Power consumption (KW)	45	37
Water consumption (m3)	26.4	0.72

###

	Cost saving(USD)	Remark
Water consumption and treatment	130	Water cost: $0.65/m3, water treatment: 30/m3
Power	15	$0.15/Kwh
Labor, production efficiency	43	Reduced from 6 hour to 4.5 hour
Sum up	188

###

Leak Detection	Metallurgy	Industrial furnace	Lithium Battery
Chemical, pharmaceutical	Wind tunnel test	Power Industry	Vacuum coating
Microelectronics industry	Drying Process	Packaging and Printing	Solar Energy
Exhaust gas recovery

###

Spec. Model	Nominal pumping speed(50Hz)	Ultimate pressure	Nominal motor rating (50Hz)	Nominal motor speed  (50Hz)	Noise level   Lp	Maximum cooling water required	Suction Connection size	Discharge Connection size	Weight (Without Motor)
	m³/h	Pa	kw	rpm	dB(A)	L/min	mm	mm	Kg
DVP-180	181	2	4	2900	82	8	50	40	280
DVP-360	354	2	7.5	2900	83	10	50	40	400
DVP-540	535	2	11	2900	83	10	50	40	500
DVP-650	645	1	15	2900	84	20	65	50	600
DVP-800	780	1	22	2900	86	30	100	80	800
DVP-1600	1450	1	37	2900	86	40	125	100	1200

###

Spec. Model	Nominal pumping speed(50Hz)	Ultimate pressure	Nominal motor rating (50Hz)	Nominal motor speed  (50Hz)	Noise level   Lp	Maximum cooling water required	Suction Connection size	Discharge Connection size	Weight (Without Motor)
	m³/h	Pa	kw	rpm	dB(A)	L/min	mm	mm	Kg
DSP-140	143	5	4	2900	82	10	50	40	240
DSP-280	278	5	7.5	2900	83	20	50	40	350
DSP-540	521	5	15	2900	83	30	65	50	550
DSP-650	617	5	18.5	2900	84	45	65	50	630
DSP-720	763	5	22	2900	85	55	80	80	780
DSP-1000	912	5	30	2900	86	70	100	80	880

Disadvantages of using a vacuum pump

A vacuum pump is a device that pulls gas molecules out of a volume and leaves a partial vacuum. Its main function is to create a relative vacuum within a given volume. There are several types of vacuum pumps. Some of them are better suited for specific purposes than others. However, there are some disadvantages to using a vacuum pump.

Application of vacuum pump

Vacuum pumps are invaluable tools in many industrial and scientific processes. They are often used to move gas and other harmful substances and to clear clogged drains. They are also used to support mechanical equipment. For example, they can be mounted on the engine of a motor vehicle or the power hydraulic component of an aircraft. No matter how they are used, they should fit the application.
The principle of a vacuum pump is to draw gas from a sealed chamber to create a partial vacuum. Over the years, vacuum pump technology has evolved from its original beginnings to its current form. Today, there are many types of vacuum pumps, including rotary vane pumps, momentum transfer pumps, and regeneration pumps.
The semiconductor industry is a major user of vacuum pumps. Among other applications, these pumps are commonly used for mounting circuit boards, securing components, blowing and jetting, and pumping. The use of renewable resources has paved the way for widespread semiconductor production, where vacuum pumps are crucial. This manufacturing shift is expected to boost vacuum pump sales across Europe.

The most common types of vacuum pumps are positive displacement and rotary vane pumps. Positive displacement pumps are most effective for rough vacuum applications and are usually paired with momentum transfer pumps. These pumps are used in pharmaceutical, food and medical processes. They are also used in diesel engines, hydraulic brakes and sewage systems.
Positive displacement pumps are used to create low vacuum conditions and create a partial vacuum. These pumps create lower air pressure by enlarging the chamber and allowing gas to flow into the chamber. The air in the cavity is then vented to the atmosphere. Alternatively, momentum transfer pumps, also known as molecular pumps, use high-speed rotating blades to create dense fluids.

Their drawbacks

Vacuum pumps are useful in industrial applications. However, they are not perfect and have some drawbacks. One of them is that their output is limited by the vacuum hose. Vacuum hoses are the bottleneck for vacuum pump performance and evacuation rates. The hose must be kept free of water and organic matter to ensure the highest possible vacuum.
Dry vacuum pumps do not have these problems. They may be more cost-effective but will increase maintenance costs. Water consumption is another disadvantage. When pond water is used, the pump puts additional pressure on the treatment facility. Additionally, contaminants from the gas can become trapped in the water, shortening the life of the pump.
Another disadvantage of vacuum pumps is their limited operating time at low vacuum. Therefore, they are only suitable for extremely high vacuum levels. Diaphragm pumps are another option for industrial applications. They have a sealed fluid chamber that allows a moderate vacuum. They also feature short strokes and a low compression ratio, making them quieter than their reciprocating counterparts.
Vacuum pumps are used in many industrial and scientific processes. They can be used to transport hazardous materials or clear clogged drains. They are also used in rear doors and dump tanks. Certain types of vacuum pumps can cause fluid blockages, which can be harmful. The vacuum pump should also be well suited to the fluid in it to avoid contamination.
Another disadvantage is the lack of proper vacuum system testing equipment. Mechanics often underestimate the importance of a properly functioning vacuum system. Most stores lack the equipment needed for proper troubleshooting. Typically, mechanics rely on the cockpit vacuum gauge to determine if the pump is working properly.
Some vacuum pumps are capable of providing constant vacuum. These pumps are also capable of eliminating odors and spills. However, these advantages are outweighed by some disadvantages of vacuum pumps.

editor by czh 2022-12-30