Product Description
Product Description
GWSP Oil free Scroll Vacuum Pump
Working principle:
GWSP oil free scroll vacuum pump is constructed with pump head assembly, crank pin assembly, bracket assembly, air flush assembly,and exhaust valve assembly.Two spiral cylinders, 1 offset and orbiting against the other fixed with an offset of 180° to form several crescent-shaped pockets of different sizes. By means of an eccentric drive, the orbiting scroll is made to orbit about the fixed scroll, reducing the volume of the pockets and compressing gas from outside towards the inside thereby pumping the gas from vacuum chamber.
Basic informations:
1) Model: GWSP75 Oil free scroll vacuum pump
2) Ultimate vacuum pressure: 8.0Pa/0.08 mbar (abs.)
3) Max suction capacity: 50Hz-1.0L/s 60Hz-1.2L/s
Safety Precautions:
The GWSP series oil free scroll vacuum pumps are suitable for clean processes only.
Do not pump toxic, explosive, flammable or corrosive substances or substances which contain chemicals, solvents or particles.GEOWELL will not perform maintenance work on pumps which have used special gases or other hazardous substances.
Be sure the inlet gas temperature must be lower than 122 °F.
Technical Specifications
Technical Specifications:
| Model | GWSP40 | GWSP75 | GWSP150 | GWSP300 | GWSP600 | GWSP1000 | ||
| Displacement | 50Hz | l/s | 0.5 | 1.0 | 2.0 | 4.3 | 8.7 | 16.6 |
| m3/h | 1.8 | 3.6 | 7.2 | 15.5 | 31.3 | 59.8 | ||
| cfm | 1.1 | 2.1 | 4.3 | 9.3 | 18.7 | 35.8 | ||
| 60Hz | l/s | 0.6 | 1.2 | 2.4 | 5.1 | 10.4 | 20.0 | |
| m3/h | 2.2 | 4.3 | 8.6 | 18.3 | 37.4 | 71.6 | ||
| cfm | 1.3 | 2.5 | 5.1 | 10.9 | 22.3 | 42.8 | ||
| Ultimate Pressure | Torr | ≤1.1*10-1 | ≤6.0*10-2 | ≤4.5*10-2 | ≤1.9*10-2 | ≤7.5*10-3 | ≤7.5*10-3 | |
| psi | ≤2.2*10-3 | ≤1.2*10-3 | ≤9.0*10-4 | ≤3.8*10-4 | ≤1.5*10-4 | ≤1.5*10-4 | ||
| Pa | ≤15 | ≤8 | ≤6 | ≤2.6 | ≤1 | ≤1 | ||
| mbar | ≤1.5*10-1 | ≤8.0*10-2 | ≤6.0*10-2 | ≤2.6*10-2 | ≤1.0*10-2 | ≤1.0*10-2 | ||
| Noise Level | dB(A) | ≤54 | ≤57 | ≤57 | ≤60 | ≤61 | ≤65 | |
| Leakage | mbar·l/s | 1*10-7 | ||||||
| Max. Inlet/Exhaust Pressure | MPa | 0.1 / 0.13 | ||||||
| Ambient Operation Temp. | ºF | 41~104 | ||||||
| Motor 1 phase | Power | kW | 0.25 | 0.55 | 0.55 | 0.55 | 0.75 | -- |
| Voltage | V | 110~115 (60Hz),200~230 (50Hz) | -- | |||||
| Speed | rpm | 1425(50Hz),1725(60Hz) | -- | |||||
| Plug | North America, Europe, UK/Ireland, India | -- | ||||||
| Motor 3 phase | Power | kW | -- | 0.55 | 0.55 | 0.55 | 0.75 | 1.5 |
| Voltage | V | -- | 200~230 or 380~415 (50Hz),200~230 or 460 (60Hz) | |||||
| Speed | rpm | -- | 1425 (50Hz),1725 (60Hz) | |||||
| Inlet/Exhaust Flange | KF25/KF16 | KF40/KF16 | KF40/KF16*2 | |||||
| Dimensions | 1 phase | mm | 326*212*253 | 450*260*296 | 455*260*296 | 493*297*334 | 538*315*348 | -- |
| 3 phase | mm | -- | 450*260*296 | 455*260*296 | 493*297*334 | 538*315*348 | 576*450*402 | |
| Net Weight | 1 phase | kg | 15 | 21 | 22 | 29 | 36 | -- |
| 3 phase | kg | -- | 20 | 21 | 28 | 31 | 54 | |
| Cooling Type | Air cooled | |||||||
| Others | With air flush | |||||||
Features & Benefits
Features & Benefits:
No oil clean vacuum.
No oil back-diffusion, no oil mist exhaust, provide clean vacuum environment
Wide product lineup.
Pumping speed covers 3~60 m3 /h, limited vacuum level 1~8 Pa
Suitable for all type of power supply around the world.
110/220/380/460V, 50/60Hz for choose
Low vibration, low noise.
57~65 dB(A), smooth operation
High efficiency, ease of maintenance.
No water cooled, no oil lubricated, no daily maintenance
Quality Control
CMM inspection system assures
fixed tolarance on dimension&shape
Pump Testing
Applications
Analyzing instrument and device.
Spectroscopy/scHangZhou electron microscopy.
Space environment simulation machine.
Helium Leak detector.
Mass spectrometer.
Cryopump regeneration.
Accelerators/synchrotrons.
Food and drug industry.
Freezing dryer.
Vacuum storage.
Medical equipment
Low temperature plasma sterilizer.
Vacuum storage.
Dental equipment.
Vacuum equipment.
Oil free ultrahigh vacuum unit
Oil free vacuum unit
Company Profile
Company Profile
GEOWELL VACUUM CO.,LTD. is a HI-TECH enterprise in China dedicating in manufacturing, research and development, marketing of oil free scroll vacuum pumps and vacuum compressors since 2002. GEOWELL has been providing users and partners with premium quality products that are efficient and dependable, GEOWELL believe the integration of high performance and high reliability product and service will bring the highest value to both our customers and ourselves.
FAQ
Question&Answers
Q: How long can I get the feedback after we sent the inquiry?
A: We will reply you within 12 hours in working day.
Q: Are you direct manufacturer?
A: Yes, we are direct manufacturer with factory and international department; we manufacture and sell all our products by ourselves.
Q: When can you delivery the product to us?
A: Since we are a factory with large warehouse, we have abundant products in store, so we can delivery within 7 days after get your deposit.
Q: Can I add logo to the products?
A: Of course, but we usually have quantity requirement. You can contact with us for details.
Q: How to guarantee the quality and after sales service of your products?
A: We conduct strict detection during production from raw material come in to product delivering shipment. Every product must go through 4 steps inspection from casting, machining, assembling, and performance testing within our factory before shipment, also intact packaging test are insured.
Q: What is your warranty term?
A: There is a 12 months warranty for our export products from the date of shipment. If warranty has run out, our customer should pay for the replacement part.
Q: Is the sample available?
A: Yes, usually we send our samples by Fedex, DHL, TNT, UPS, EMS, SF, Depon, it will take around 3 to 4 days for our customer receive them, but customer will charge all cost related to the samples, such as sample cost and air freight. We will refund our customer the sample cost after receiving the order.
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| After-sales Service: | Yes |
|---|---|
| Warranty: | 1 Years |
| Oil or Not: | Oil Free |
| Structure: | Scroll Pump |
| Exhauster Method: | a Pair of Vortex Plates |
| Vacuum Degree: | Low Vacuum |
| Customization: |
Available
|
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Are there variations in scroll vacuum pump designs, and how do they affect performance?
Yes, there are variations in scroll vacuum pump designs, and they can have an impact on the performance of the pump. Here's a detailed explanation:
Single-Stage and Multi-Stage Designs:
Scroll vacuum pumps can be classified into single-stage and multi-stage designs:
- Single-stage: Single-stage scroll pumps have a single set of orbiting and fixed scrolls. They are typically used for applications where moderate vacuum levels and pumping speeds are required. Single-stage pumps are known for their simplicity, compactness, and quiet operation.
- Multi-stage: Multi-stage scroll pumps consist of multiple sets of orbiting and fixed scrolls arranged in series. Each stage provides additional compression, allowing for higher vacuum levels and faster pumping speeds. Multi-stage pumps are suitable for applications that require deeper vacuum levels or higher pumping capacities.
The choice between single-stage and multi-stage scroll pumps depends on the specific application requirements and desired performance characteristics.
Oil-Free and Oil-Sealed Designs:
Scroll vacuum pumps are available in both oil-free and oil-sealed designs:
- Oil-Free: Oil-free scroll vacuum pumps do not require lubricating oil in the pump chamber. They are suitable for applications that demand a clean and oil-free vacuum environment to prevent contamination or interference with sensitive samples or processes. Oil-free pumps are often preferred in laboratory, research, and semiconductor applications.
- Oil-Sealed: Oil-sealed scroll vacuum pumps utilize oil as a lubricant and sealing medium. The oil helps provide a better seal between the scrolls and contributes to improved performance in terms of vacuum level and pumping speed. Oil-sealed pumps are commonly used in industrial, manufacturing, and rough vacuum applications.
Both oil-free and oil-sealed scroll vacuum pumps have their advantages and considerations, and the selection depends on the specific requirements of the application.
Other Design Considerations:
In addition to the above variations, scroll vacuum pumps may have other design considerations that can affect their performance:
- Pump Size: Scroll pumps are available in different sizes, offering a range of pumping capacities and physical dimensions. The pump size influences the pumping speed and the size of the vacuum system it can handle. Smaller pumps are more compact and suitable for applications with lower flow rate requirements, while larger pumps provide higher pumping speeds.
- Motor Rating: The motor rating of a scroll vacuum pump determines its power output and affects the pumping speed and performance. Higher motor ratings generally result in faster pumping speeds and may be necessary for certain demanding applications.
- Control and Monitoring Features: Some scroll vacuum pumps may include advanced control and monitoring features, such as integrated controllers, digital interfaces, and performance indicators. These features can enhance the pump's usability, provide real-time data, and facilitate system integration.
It is important to refer to the manufacturer's specifications and guidelines for specific scroll vacuum pump models to understand the design variations and their impact on performance. The manufacturer can provide detailed information on the pump's capabilities, limitations, and recommended applications.
By selecting the appropriate scroll vacuum pump design based on the application requirements, it is possible to achieve optimal performance and efficiency in various vacuum processes.
Can scroll vacuum pumps handle both dry and wet processes?
Yes, scroll vacuum pumps can handle both dry and wet processes. Here's a detailed explanation:
Scroll vacuum pumps are versatile and can be used in a variety of applications, including both dry and wet processes. The suitability of a scroll vacuum pump for a specific process depends on several factors:
Dry Processes:
In dry processes, the scroll vacuum pump operates in a clean and dry environment, handling gases or vapors without any significant liquid content. Dry processes are common in applications such as vacuum filtration, vacuum drying, and vacuum distillation.
Scroll vacuum pumps are well-suited for dry processes due to the following reasons:
- Oil-Free Operation: Scroll vacuum pumps are available in oil-free versions, which are ideal for maintaining a clean and contamination-free vacuum environment in dry processes. Oil-free operation eliminates the risk of oil vapor or particles contaminating the process and the end products.
- Minimal Internal Leakage: Scroll vacuum pumps have a relatively low internal leakage rate, helping to maintain the desired vacuum level in dry processes. The scroll pump design with its dynamically sealed orbiting and fixed scrolls helps minimize leakage, ensuring efficient and reliable operation.
Wet Processes:
In wet processes, the scroll vacuum pump comes into contact with liquids or handles gases/vapors that have a significant liquid content. Wet processes can include applications such as vacuum filtration with liquid samples, wet chemistry techniques, or processes involving liquid extraction.
For wet processes, additional considerations may be necessary:
- Liquid Compatibility: The scroll vacuum pump should be compatible with the liquids or liquid-containing gases/vapors being handled in wet processes. Certain corrosive or chemically reactive liquids may require special pump materials or additional precautions to ensure compatibility.
- Liquid Handling Capacity: The scroll vacuum pump should have adequate liquid handling capacity to handle the liquid or liquid-containing gases/vapors encountered in wet processes. Some scroll vacuum pump models may offer specific features or accessories, such as liquid traps or separators, to facilitate liquid handling and prevent liquid carryover into the pump.
It's important to consult the manufacturer's specifications and guidelines to ensure that the scroll vacuum pump is suitable for the specific dry or wet process requirements. The manufacturer can provide information on the pump's compatibility with different gases, vapors, and liquids, as well as any additional considerations or accessories needed for wet processes.
By selecting the appropriate scroll vacuum pump and following the recommended operating procedures, both dry and wet processes can be effectively handled, providing reliable and efficient vacuum performance.
Can scroll vacuum pumps achieve high vacuum levels, and what is their ultimate vacuum limit?
Scroll vacuum pumps are capable of achieving high vacuum levels, although their ultimate vacuum limit may vary depending on various factors. Here's a detailed explanation:
1. High Vacuum Levels:
Scroll vacuum pumps are known for their ability to achieve relatively high vacuum levels. They are capable of reaching vacuum levels in the range of 10-2 to 10-3 millibar (mbar) or lower, depending on the specific model and operating conditions. These vacuum levels are suitable for a wide range of applications across industries, including laboratory research, semiconductor manufacturing, analytical instruments, and more.
2. Ultimate Vacuum Limit:
The ultimate vacuum limit of scroll vacuum pumps is typically determined by several factors:
a. Pump Design and Materials:
The design of the scroll vacuum pump, including the specific materials used, can influence its ultimate vacuum limit. Factors such as the quality of the sealing surfaces and the tightness of the scroll interaction play a role in determining the achievable vacuum levels. The choice of materials for the scrolls, such as stainless steel or coated surfaces, can also impact the pump's ultimate vacuum limit.
b. Pumping Speed and Gas Load:
The pumping speed of a scroll vacuum pump, which is the volume of gas it can evacuate per unit of time, affects its ability to reach high vacuum levels. If the gas load exceeds the pump's capacity, it may struggle to maintain low pressures. In applications with high gas loads, it may be necessary to consider additional pumping stages or complementary vacuum systems to achieve the desired vacuum levels.
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Can scroll vacuum pumps achieve high vacuum levels, and what is their ultimate vacuum limit?
Scroll vacuum pumps are capable of achieving high vacuum levels, although their ultimate vacuum limit may vary depending on various factors. Here's a detailed explanation:
1. High Vacuum Levels:
Scroll vacuum pumps are known for their ability to achieve relatively high vacuum levels. They are capable of reaching vacuum levels in the range of 10-2 to 10-3 millibar (mbar) or lower, depending on the specific model and operating conditions. These vacuum levels are suitable for a wide range of applications across industries, including laboratory research, semiconductor manufacturing, analytical instruments, and more.
2. Ultimate Vacuum Limit:
The ultimate vacuum limit of scroll vacuum pumps is typically determined by several factors:
a. Pump Design and Materials:
The design of the scroll vacuum pump, including the specific materials used, can influence its ultimate vacuum limit. Factors such as the quality of the sealing surfaces and the tightness of the scroll interaction play a role in determining the achievable vacuum levels. The choice of materials for the scrolls, such as stainless steel or coated surfaces, can also impact the pump's ultimate vacuum limit.
b. Pumping Speed and Gas Load:
The pumping speed of a scroll vacuum pump, which is the volume of gas it can evacuate per unit of time, affects its ability to reach high vacuum levels. If the gas load exceeds the pump's capacity, it may struggle to maintain low pressures. In applications with high gas loads, it may be necessary to consider additional pumping stages or complementary vacuum systems to achieve the desired vacuum levels.
c. System Configuration:
The overall configuration of the vacuum system can also impact the ultimate vacuum limit of a scroll pump. Factors such as the presence of leaks, the size and design of the vacuum chamber, and the compatibility of the pump with other components in the system can affect the achievable vacuum levels. It's important to optimize the system configuration to maximize the pump's performance and ultimate vacuum limit.
While scroll vacuum pumps can achieve high vacuum levels, it's important to note that they may not be suitable for ultra-high vacuum (UHV) applications that require vacuum levels in the range of 10-7 mbar or lower. For such demanding applications, other types of pumps, such as turbomolecular pumps or cryogenic pumps, are typically used.
In summary, scroll vacuum pumps are capable of achieving high vacuum levels in the range of 10-2 to 10-3 mbar or lower. The ultimate vacuum limit of a scroll pump is influenced by factors such as pump design and materials, pumping speed and gas load, and system configuration. Understanding these factors and optimizing the pump's operation and system configuration can help maximize its performance and achieve the desired vacuum levels for specific applications.
editor by CX 2024-04-10