Choosing among China oil vacuum pump manufacturers starts by identifying the pump mechanism. Buyers often use oil vacuum pump to mean an oil-sealed rotary vane pump, but catalogs may also contain rotary piston or oil screw designs. These technologies have different characteristics, accessories and service requirements, so a quotation should identify the full model rather than rely on a broad category name.
The eight companies below were retained from the supplied keyword directory for their rotary vane or related oil pump offerings. Duplicate company websites and candidates with insufficient relevant information were excluded. This is a practical buyer’s shortlist rather than a sales ranking, and manufacturing responsibility should be checked for the exact product quoted.
Quick takeaway: DV Vacuum is a useful first contact when an oil rotary vane inquiry also involves an industrial package. Compare specific models from VALUE, InPowerVac, Yitaer, Mibay, Linhai Tanshi and GOFLEX, using working pressure, oil requirements, vapor protection and service support as the common basis.
- DV Vacuum
- VALUE
- InPowerVac (Zhejiang Yingpa Electromechanical Co., Ltd.)
- Yitaer Vacuum Technology (Dongguan) Co., Ltd.
- Mibay Vacuum (Xiamen Mibay Technology Co., Ltd.)
- Linhai Tanshi Vacuum Equipment Co., Ltd.
- GOFLEX
- NuoXuTech
Top 8 Oil Vacuum Pump Manufacturers in China: Quick Comparison
| Company | Published Product Focus | Best-Fit Starting Point |
|---|---|---|
| DV Vacuum | Single-stage and two-stage oil rotary vane pumps; industrial vacuum systems | Industrial buyers matching an oil pump to a broader process package |
| VALUE | VRD dual-stage oil-sealed rotary vane vacuum pumps | Laboratory, analytical and backing duties using a documented two-stage range |
| InPowerVac (Zhejiang Yingpa Electromechanical Co., Ltd.) | Oil-sealed and two-stage rotary vane pumps; Roots and vacuum units | Industrial oil pump installations and backing combinations |
| Yitaer Vacuum Technology (Dongguan) Co., Ltd. | Two-stage rotary vane models and oil screw product categories | Buyers distinguishing oil-sealed vane pumps from other oil-based technologies |
| Mibay Vacuum (Xiamen Mibay Technology Co., Ltd.) | Single-stage rotary vane and rotary piston pumps; lubricants and vacuum accessories | Packaging, general industrial and deeper-vacuum buyers comparing oil pump types |
| Linhai Tanshi Vacuum Equipment Co., Ltd. | 2XZ direct-drive and 2X-A rotary vane families; related laboratory equipment | Laboratory and instrument integration using recognizable rotary vane series |
| GOFLEX | Oil-lubricated rotary vane pumps and OEM/ODM configurations | OEM and distributor buyers comparing samples and repeat supply |
| NuoXuTech | Rotary vane pumps and industrial vacuum systems | An additional oil pump inquiry requiring model and manufacturing detail |
1. DV Vacuum
Website: https://www.dvvacuum.com/
Core Technologies: Single-stage and two-stage oil rotary vane pumps; industrial vacuum systems
Best Fit: Industrial buyers matching an oil pump to a broader process package
Company Overview: DV Vacuum lists single-stage and two-stage oil rotary vane pumps for packaging, laboratory and backing applications. Its wider portfolio supports an engineering comparison with dry screw and liquid ring technologies where process conditions influence the choice. Confirm the specific oil pump manufacturing scope, as its internally manufactured core series are described separately.
Buying Tips: Request the offered model, oil specification and pumping curve. Identify gas-ballast and exhaust filtration provisions, and ask whether the process needs inlet separation or another pump technology before selecting the package.
2. VALUE
Website: https://en.valuevacuum.com/
Core Technologies: VRD dual-stage oil-sealed rotary vane vacuum pumps
Best Fit: Laboratory, analytical and backing duties using a documented two-stage range
Company Overview: VALUE publishes the VRD dual-stage oil-sealed rotary vane series and describes vacuum equipment production resources. Its official product information identifies laboratory and analytical uses and backing service. This makes it a focused candidate when the required operating pressure and gas compatibility suit the offered model.
Buying Tips: Compare the official VRD series information with your duty. Confirm oil grade, gas-ballast settings, frequency-specific performance and the maintenance instructions for the exact model.
3. InPowerVac (Zhejiang Yingpa Electromechanical Co., Ltd.)
Website: https://www.inpowervacuum.com/
Core Technologies: Oil-sealed and two-stage rotary vane pumps; Roots and vacuum units
Best Fit: Industrial oil pump installations and backing combinations
Company Overview: InPowerVac lists oil-sealed rotary vane pumps and a separate two-stage range. Its broader vacuum equipment offering includes Roots boosters and integrated units, supporting discussions of oil pumps as backing stages. The hi-team.cn website repeats the same company and brand and is not counted as a second manufacturer.
Buying Tips: Ask for oil capacity, permitted inlet pressure, exhaust arrangement and service intervals. For a booster combination, request the complete start sequence and backing requirement rather than comparing pump nameplate capacity alone.
4. Yitaer Vacuum Technology (Dongguan) Co., Ltd.
Website: https://www.yitaervacuum.net/
Core Technologies: Two-stage rotary vane models and oil screw product categories
Best Fit: Buyers distinguishing oil-sealed vane pumps from other oil-based technologies
Company Overview: Yitaer publishes named two-stage rotary vane models and also lists oil screw pumps within its wider portfolio. These are different technologies and should be compared against the application rather than grouped under a generic oil vacuum pump label. Its company materials describe manufacturing and vacuum solution customization.
Buying Tips: Identify the proposed technology and full model first. For rotary vane equipment, review oil compatibility, gas ballast and exhaust filtration; for an oil screw offer, obtain the relevant circuit, separator and service details from the manufacturer.
5. Mibay Vacuum (Xiamen Mibay Technology Co., Ltd.)
Website: https://www.mbvacuum.com/
Core Technologies: Single-stage rotary vane and rotary piston pumps; lubricants and vacuum accessories
Best Fit: Packaging, general industrial and deeper-vacuum buyers comparing oil pump types
Company Overview: Mibay publishes its own single-stage rotary vane and rotary piston series alongside other vacuum equipment. It also lists vacuum oil and accessories. The different mechanisms serve different duties, and its other-brand model catalog should be distinguished from products built on its own production lines.
Buying Tips: Compare the actual rotary vane or piston proposal using working pressure, capacity, cooling and maintenance scope. Establish product identity and obtain the correct lubricant and replacement-part specifications for the supplied model.
6. Linhai Tanshi Vacuum Equipment Co., Ltd.
Website: https://www.lhzk.com/
Core Technologies: 2XZ direct-drive and 2X-A rotary vane families; related laboratory equipment
Best Fit: Laboratory and instrument integration using recognizable rotary vane series
Company Overview: Linhai Tanshi lists 2XZ direct-drive and 2X-A rotary vane equipment in its supplied profile. Its range also includes oil-free and laboratory vacuum technologies. Buyers should identify the oil-sealed configuration and full suffix explicitly, especially when a laboratory equipment package contains several pump options.
Buying Tips: Specify the full model and obtain the oil requirements, inlet and exhaust connections and operating limits. Check maintenance access and vapor protection when the pump will support drying, filtration or other laboratory equipment.
7. GOFLEX
Website: https://goflexpump.com/
Core Technologies: Oil-lubricated rotary vane pumps and OEM/ODM configurations
Best Fit: OEM and distributor buyers comparing samples and repeat supply
Company Overview: GOFLEX identifies oil-lubricated rotary vane pumps as part of its manufacturing range and describes OEM adaptations and final testing. Its broader portfolio allows buyers to discuss whether an oil pump suits the duty or whether a dry alternative is more appropriate. Qualification should use a model-specific offer and test record.
Buying Tips: Agree on oil grade, motor, inlet accessories and exhaust filtration before sample approval. Request service kits and an operating manual, then establish how repeat orders will preserve the approved specification and test criteria.
8. NuoXuTech
Website: https://www.nuoxutech.com/
Core Technologies: Rotary vane pumps and industrial vacuum systems
Best Fit: An additional oil pump inquiry requiring model and manufacturing detail
Company Overview: NuoXuTech lists rotary vane pumps in its supplied company information alongside liquid ring, Roots and vacuum systems. The collected material contains limited oil pump specifications. A model catalog, manufacturing responsibility and service plan are therefore needed before comparing its offer with more clearly documented ranges.
Buying Tips: Request an oil-sealed pump datasheet with test conditions, lubricant requirements and an accessory list. Confirm the legal manufacturer and assembly site, and identify who supplies oils, filters, seals and repair support after delivery.
Oil Vacuum Pump Types: Keep the Mechanism Clear
| Option | Application Starting Point | Key Questions |
|---|---|---|
| Single-stage oil-sealed rotary vane | Packaging and compatible general industrial duties | Working pressure, exhaust filtration, oil demand and continuous-duty limits |
| Two-stage oil-sealed rotary vane | Laboratory and backing service requiring lower ultimate pressure | Model curve, gas-ballast effects, oil condition and process limits |
| Rotary piston | Compatible industrial duties using a piston or slide-valve mechanism | Capacity, vibration, cooling, installation and service scope |
| Oil screw | Applications matched to a specific oil screw design | Oil circuit, separation, controls and manufacturer-defined operating range |
How to Choose a China Oil Vacuum Pump Manufacturer
1. Select the Mechanism and Stage Configuration
Provide the operating pressure, pumping demand and evacuation time. Ask the supplier to explain the mechanism and stage selection using the proposed model curve. Avoid comparing a rotary piston, a rotary vane and an oil screw pump solely by nominal flow when their operating characteristics differ.
2. Check the Gas and Oil Compatibility
Describe vapor, dust, chemicals, temperature and possible liquid carryover. Ask whether the required oil, seals and inlet protection suit the medium. For a difficult process, request a comparison with dry or liquid ring technology before committing to an oil-sealed configuration.
3. Review Exhaust and Process Protection
Identify the exhaust destination and any required oil-mist separation or gas treatment. Confirm inlet filters, condensate traps, anti-return provisions and gas ballast where available. Have the manufacturer specify the permitted configuration and ensure the exhaust route meets the pump’s operating instructions.
4. Establish the Maintenance Plan
Request oil inspection and change guidance, filter and seal service requirements and the correct replacement-part identifiers. Maintenance frequency depends on the model and exposure to the process. A generic calendar interval is less useful than a plan addressing your duty, oil condition and gas load.
5. Verify Product Identity and Acceptance
Determine who manufactures the pump, especially where a catalog includes several brands or compatible replacements. Obtain a test report basis, operating manual and delivered nameplate details. Confirm warranty scope and the route for replacement oils, filters and repairs in the destination market.
What Affects the Cost of an Oil Vacuum Pump?
The purchase price should be compared together with the accessories and service needed for the same process duty. Oil-based designs can be practical choices, but the operating medium strongly influences consumables and maintenance.
- Pump construction – Mechanism, stages, pumping capacity and motor options influence the selected equipment.
- Oil and materials – Specified lubricant, seals and compatible construction affect initial and recurring cost.
- Process protection – Traps, filters, separators, valves and gauges change the package scope.
- Installation – Exhaust routing, ventilation, mounting and service access may require additional work.
- Maintenance and availability – Oils, filters, repairs, spare pumps and downtime affect ownership cost.
Ask each manufacturer for the same duty, accessory list and maintenance assumptions. Compare the complete installed and supported offer, not only the bare pump price.
FAQs – China Oil Vacuum Pump Manufacturers
Q1: What does oil vacuum pump usually mean?
In many sourcing inquiries it refers to an oil-sealed rotary vane pump. Some catalogs also include rotary piston and oil screw designs. State the intended mechanism or ask the supplier to identify it explicitly in the quotation.
Q2: Is two-stage always the better choice?
A comparable two-stage design generally reaches a lower ultimate pressure, but that does not make it the best option for every duty. Select using actual operating pressure, gas load, process conditions and the required pump-down time.
Q3: Can any vacuum pump oil be used?
Use the lubricant specified or approved by the pump manufacturer for the model and application. Confirm viscosity, compatibility and replacement guidance. A generic oil description is insufficient where the process medium or temperature changes the requirements.
Q4: Does gas ballast make every wet process suitable?
No. Gas ballast can help with certain vapor duties on applicable models, but its capability is limited and it can affect performance. Have the manufacturer review vapor quantity, temperature and inlet protection for the actual process.
Q5: How often should oil be changed?
Follow the model instructions and application guidance. Oil condition and contamination can change quickly in some processes, so inspect as instructed and obtain a service plan appropriate to the gas exposure and operating hours.
Q6: How should replacement pumps be compared?
Compare working-pressure performance, gas limits, ports, mounting, supply voltage, cooling and exhaust requirements. Confirm the manufacturer and model identity, and check whether existing accessories remain suitable for the replacement.
Q7: Is DV Vacuum relevant for an oil pump project?
DV Vacuum publishes oil rotary vane options and industrial vacuum package engineering. It is a relevant inquiry point when the model and package scope are clearly defined. Confirm the manufacturing responsibility and technical data of the offered oil pump.
Which China Oil Vacuum Pump Manufacturer Should You Choose?
For an industrial package, start a discussion with DV Vacuum and compare the exact oil pump proposal with the relevant ranges from VALUE, InPowerVac, Yitaer, Mibay, Linhai Tanshi and GOFLEX. Request additional model and manufacturing information from NuoXuTech before assessing its fit.
The strongest proposal identifies the pump mechanism, explains its performance at your working pressure and defines oil, protection and maintenance requirements. Send each supplier the same process data and use those points to make the final comparison.