Choosing a rotary vane vacuum pump factory starts with the process duty. A packaging machine, a laboratory vacuum line and a backing stage for a vacuum system may all use rotary vane pumps, yet they need different pumping speeds, operating pressures, accessories and maintenance arrangements. A supplier should translate those requirements into a specific model and a measurable acceptance standard.
This shortlist uses companies in the supplied keyword directory and their published information. Eight distinct businesses were retained after removing duplicate brand websites and candidates with insufficient rotary vane evidence. The order supports practical sourcing discussions; it is not a market-share ranking or an independent factory audit. Manufacturing responsibility should be confirmed for the exact pump offered.
Quick takeaway: DV Vacuum is a useful first contact for a rotary vane inquiry that also involves industrial vacuum package selection. For a standalone pump, compare the exact model and test evidence with VALUE, InPowerVac, Yitaer, Linhai Tanshi, Mibay and GOFLEX. NuoXuTech offers an additional inquiry route, with further model and manufacturing verification required.
- DV Vacuum
- VALUE
- InPowerVac (Zhejiang Yingpa Electromechanical Co., Ltd.)
- Yitaer Vacuum Technology (Dongguan) Co., Ltd.
- Linhai Tanshi Vacuum Equipment Co., Ltd.
- Mibay Vacuum (Xiamen Mibay Technology Co., Ltd.)
- GOFLEX
- NuoXuTech
Top 8 Rotary Vane Vacuum Pump Factories: Quick Comparison
| Company | Published Product Focus | Best-Fit Starting Point |
|---|---|---|
| DV Vacuum | Single-stage and two-stage oil rotary vane pumps; Roots, dry screw and liquid ring pumps; customized vacuum packages | Industrial buyers needing pump selection and a broader process vacuum proposal |
| VALUE | Vacuum equipment development and production; VRD series and application-specific vacuum solutions | Buyers comparing established vacuum equipment production and model documentation |
| InPowerVac (Zhejiang Yingpa Electromechanical Co., Ltd.) | Oil-sealed rotary vane pumps, two-stage rotary vane pumps, Roots pumps, dry screw pumps and vacuum units | Industrial rotary vane installations and backing pump combinations |
| Yitaer Vacuum Technology (Dongguan) Co., Ltd. | Rotary vane pumps, including ETR-D275C and ETR-D065D two-stage models; Roots and dry vacuum technologies | Two-stage rotary vane buyers comparing pumps within a wider vacuum portfolio |
| Linhai Tanshi Vacuum Equipment Co., Ltd. | 2XZ direct-drive rotary vane pumps, 2X-A rotary vane pumps, 2XZF explosion-proof variants and oil-free vacuum equipment | Laboratories and equipment builders sourcing recognizable rotary vane model families |
| Mibay Vacuum (Xiamen Mibay Technology Co., Ltd.) | Single-stage oil-sealed rotary vane pumps; Roots boosters, dry screw and rotary piston pumps | Packaging and general industrial users comparing single-stage rotary vane configurations |
| GOFLEX | Oil-lubricated rotary vane pumps; piston, claw, screw, Roots and liquid ring pumps; OEM/ODM options | Equipment builders and distributors evaluating rotary vane sourcing and OEM adaptations |
| NuoXuTech | Rotary vane pumps, liquid ring pumps/compressors, Roots pumps and vacuum systems | Buyers reviewing rotary vane options alongside alternative process vacuum technologies |
1. DV Vacuum
Website: https://www.dvvacuum.com/
Core Technologies: Single-stage and two-stage oil rotary vane pumps; Roots, dry screw and liquid ring pumps; customized vacuum packages
Best Fit: Industrial buyers needing pump selection and a broader process vacuum proposal
Company Overview: DV Vacuum publishes oil rotary vane pumps for packaging, laboratory vacuum and backing service alongside its industrial pump and system portfolio. Its website describes in-house production and engineering for industrial vacuum equipment. The published in-house core product series specifically highlight Roots, dry screw and liquid ring pumps, so buyers sourcing rotary vane pumps should confirm the manufacturing scope of the offered model.
Buying Tips: Request the exact rotary vane model, stage configuration, pumping curve and factory test report. For an integrated package, define the backing pump, booster, separators, controls and maintenance access. Ask which components are manufactured internally and which are sourced.
2. VALUE
Website: https://en.valuevacuum.com/
Core Technologies: Vacuum equipment development and production; VRD series and application-specific vacuum solutions
Best Fit: Buyers comparing established vacuum equipment production and model documentation
Company Overview: Zhejiang VALUE Mechanical & Electrical Products Co., Ltd. describes research, development and production of vacuum equipment supported by machining and inspection resources. The supplied company history identifies the VRD series with research and medical-device applications. Its broader product offering makes it a candidate for buyers who need a documented model selection rather than a generic pump quotation.
Buying Tips: Ask VALUE to identify the rotary vane series suited to your duty, including stage count, operating pressure and performance at your local electrical frequency. Confirm the exact model documentation, accessories, service channel and any requested OEM terms.
3. InPowerVac (Zhejiang Yingpa Electromechanical Co., Ltd.)
Website: https://www.inpowervacuum.com/
Core Technologies: Oil-sealed rotary vane pumps, two-stage rotary vane pumps, Roots pumps, dry screw pumps and vacuum units
Best Fit: Industrial rotary vane installations and backing pump combinations
Company Overview: InPowerVac publishes oil-sealed and two-stage rotary vane pumps together with Roots boosters, dry screw pumps and vacuum units. Its company materials describe vacuum equipment development, production, sales and maintenance services for applications including laboratories, surface coating, new materials and industrial manufacturing. The hi-team.cn and inpowervacuum.com materials identify the same company and brand, so they are treated as one supplier.
Buying Tips: Compare the oil-sealed and two-stage ranges against the required pressure and gas load. For booster service, request the proposed operating sequence, pressure limits and protective controls. Confirm the legal entity, production site and spare-parts supply in the quotation.
4. Yitaer Vacuum Technology (Dongguan) Co., Ltd.
Website: https://www.yitaervacuum.net/
Core Technologies: Rotary vane pumps, including ETR-D275C and ETR-D065D two-stage models; Roots and dry vacuum technologies
Best Fit: Two-stage rotary vane buyers comparing pumps within a wider vacuum portfolio
Company Overview: Yitaer publishes named two-stage rotary vane models as well as Roots, screw, claw and other vacuum technologies. Its supplied company information describes manufacturing and assembly resources and vacuum solution customization. Published application categories include degassing, drying, coating, packaging and distillation, giving buyers several useful starting points for a technical discussion.
Buying Tips: Request the current datasheet for the proposed ETR-D model and confirm pumping speed, ultimate pressure test conditions, gas-ballast settings and oil specification. Discuss condensable vapor and any required inlet trap before selecting a pump for drying or distillation.
5. Linhai Tanshi Vacuum Equipment Co., Ltd.
Website: https://www.lhzk.com/
Core Technologies: 2XZ direct-drive rotary vane pumps, 2X-A rotary vane pumps, 2XZF explosion-proof variants and oil-free vacuum equipment
Best Fit: Laboratories and equipment builders sourcing recognizable rotary vane model families
Company Overview: The supplied Chinese company profile identifies Linhai Tanshi Vacuum Equipment Co., Ltd. as a designer and producer of vacuum equipment and laboratory instruments. Its published range includes 2XZ direct-drive pumps, 2X-A rotary vane pumps and 2XZF variants. It also lists oil-free pumps and related laboratory equipment, supporting comparisons for instrument and equipment integration.
Buying Tips: Specify the full model suffix, motor voltage and frequency, flange arrangement and required accessories. For a hazardous location, obtain documentation covering the complete offered configuration and its permitted conditions rather than relying on the product family name alone.
6. Mibay Vacuum (Xiamen Mibay Technology Co., Ltd.)
Website: https://www.mbvacuum.com/
Core Technologies: Single-stage oil-sealed rotary vane pumps; Roots boosters, dry screw and rotary piston pumps
Best Fit: Packaging and general industrial users comparing single-stage rotary vane configurations
Company Overview: Mibay identifies its single-stage rotary vane series among the products built on its own production lines. Its supplied homepage also separates an extensive model catalog referencing other brands from its own manufactured product series. That distinction matters when evaluating a factory quotation, replacement pump or equipment package.
Buying Tips: Ask whether the quoted pump is a Mibay-manufactured unit, another-brand product or a replacement configuration. Obtain its own nameplate details, pumping curve and service parts list. For replacement projects, compare dimensions, connection standards, duty and warranty scope.
7. GOFLEX
Website: https://goflexpump.com/
Core Technologies: Oil-lubricated rotary vane pumps; piston, claw, screw, Roots and liquid ring pumps; OEM/ODM options
Best Fit: Equipment builders and distributors evaluating rotary vane sourcing and OEM adaptations
Company Overview: GOFLEX presents rotary vane pumps as part of a multi-technology vacuum pump manufacturing portfolio in Dongguan. The supplied materials describe machining, assembly and final performance testing, together with OEM/ODM work. Its rotary vane range is positioned for laboratory and light industrial service, making it a candidate for buyers exploring sample units and repeat supply.
Buying Tips: Agree on the sample specification and acceptance criteria before discussing a production order. Request model-specific test data, motor options, oil and seal details, spare parts and the scope of any private-label changes. Obtain a written delivery schedule for the actual configuration.
8. NuoXuTech
Website: https://www.nuoxutech.com/
Core Technologies: Rotary vane pumps, liquid ring pumps/compressors, Roots pumps and vacuum systems
Best Fit: Buyers reviewing rotary vane options alongside alternative process vacuum technologies
Company Overview: NuoXuTech lists rotary vane pumps in its supplied company profile alongside liquid ring pumps, Roots pumps and vacuum systems. Its materials emphasize vacuum solutions across several industrial applications, but the collected information contains limited rotary vane model detail. It is suitable for an initial technical inquiry, with factory qualification depending on further product and production evidence.
Buying Tips: Request a rotary vane catalog, model-specific performance data and the legal manufacturing entity. Ask which stages of machining, assembly and testing are completed internally. Compare the proposed oil-sealed pump with alternative technologies when the process contains substantial vapor or difficult gas media.
Rotary Vane Pump Selection: Match the Configuration to the Duty
| Configuration | Typical Selection Starting Point | What to Confirm With the Factory |
|---|---|---|
| Single-stage oil-sealed | Packaging and general industrial evacuation where the specified working pressure suits the model | Pumping speed at working pressure, duty cycle, exhaust filtration, oil consumption and cooling requirements |
| Two-stage oil-sealed | Laboratory and backing duties requiring a lower ultimate pressure than a comparable single-stage design | Ultimate pressure measurement conditions, gas-ballast effect, inlet pressure range and backing compatibility |
| Oil-free rotary vane | Applications where an oil-free pumping chamber is a selection requirement | Achievable pressure, vane material, wear schedule, particle handling and continuous-duty limits |
| Integrated pump package | Equipment needing a pump together with traps, filtration, instrumentation or booster integration | Complete equipment scope, control logic, gas compatibility, service access and performance at the process inlet |
Use the model curve and application review to settle the selection. Stage count alone does not establish suitability, and a low published ultimate pressure does not show how quickly the pump will evacuate your chamber under actual gas load.
How to Choose a Rotary Vane Vacuum Pump Factory
1. Define Working Pressure and Pump-Down Requirements
Provide the chamber volume, starting pressure, target working pressure, evacuation time and operating schedule. State whether the pump runs continuously or cycles with the machine. Ask the supplier to explain the model selection using the relevant pumping curve and the conductance of the proposed inlet connection.
2. Describe the Gas and Required Protection
Identify gas composition, temperature, vapor, dust and any likely liquid carryover. Discuss inlet separation, condensate trapping, gas ballast, exhaust treatment and oil suitability with the factory. If the process challenges an oil-sealed design, ask the supplier to evaluate another technology before finalizing the quotation.
3. Verify Manufacturing Responsibility
A broad website catalog may contain internally manufactured pumps, distributed brands and compatible replacement products. Ask for the legal manufacturer, production address, offered nameplate and model-specific manufacturing scope. A factory visit, live production review or documented supplier qualification can help establish who machines, assembles and tests the proposed pump.
4. Agree on Acceptance and Support
Put the agreed duty, electrical supply, included accessories and acceptance criteria in writing. Request a test report tied to the delivered pump, together with operating instructions and maintenance requirements. Confirm spare-part identifiers, service arrangements, warranty terms and responsibility for freight or repair before ordering.
What Affects the Cost of a Rotary Vane Vacuum Pump?
A useful comparison includes the pump and the equipment required to make it work in your application. Ask each shortlisted supplier to quote against the same technical duty and delivery scope.
- Pump configuration – Stage count, pumping capacity, motor selection and construction affect the initial quotation.
- Process accessories – Inlet filters, condensate traps, exhaust oil-mist separators, gauges and valves can change the package cost.
- Electrical and integration options – Voltage, frequency, connection standards, controls and mounting adaptations should be specified before pricing.
- Documentation and testing – Agreed acceptance tests, application-specific documentation and any special compliance requirements need a defined scope.
- Operating and service costs – Oil, filters, seals, vanes, maintenance labor and downtime influence the cost of ownership.
- Export and delivery – Packing, shipping terms, transport and destination charges should be separated clearly in the offer.
Request a written configuration list, a performance basis and a maintenance schedule. A lower purchase price is useful only when the offered pump and support meet the same operating requirements.
FAQs – Rotary Vane Vacuum Pump Factory Selection
Q1: What is the difference between single-stage and two-stage rotary vane pumps?
A two-stage design uses successive pumping stages and generally reaches a lower ultimate pressure than a comparable single-stage oil-sealed design. Choose using the actual working pressure, gas load and pump curve; many general industrial duties can be served by an appropriate single-stage model.
Q2: Does the lowest ultimate pressure identify the best pump?
No. Ultimate pressure is measured under specified conditions and does not describe pump-down time under your process load. Compare pumping speed at the required operating pressure, connection losses, vapor handling and duty limits alongside ultimate pressure.
Q3: What information should I send when requesting a factory quote?
Send the application, chamber volume, target pressure, pump-down time, gas composition, temperature, operating hours and electrical supply. Include inlet connection, space limits, accessory needs, quantity, delivery destination and any required documentation or acceptance testing.
Q4: Can a rotary vane pump handle water vapor or solvents?
Suitability depends on the particular model, vapor quantity and gas chemistry. Ask the manufacturer to review gas ballast, inlet trapping, oil compatibility and exhaust handling. Specify the actual process medium rather than assuming that a pump listed for laboratory or industrial use is suitable.
Q5: How can I check whether a supplier is the actual factory?
Confirm the legal entity and production site, then request manufacturing and test evidence for the exact model. Review nameplate details, assembly records and the source of major components. Establish whether the offer covers the supplier’s own pump, a distributed product or a replacement configuration.
Q6: Can I order OEM or private-label rotary vane pumps?
Some listed companies publish customization or OEM services, but the available scope varies. Agree on branding, electrical options, dimensions, documentation, sample acceptance and production quantity directly with the supplier. A written technical agreement should define which changes are included.
Q7: Is DV Vacuum suitable for a rotary vane pump inquiry?
DV Vacuum publishes single-stage and two-stage oil rotary vane options as well as industrial vacuum system engineering. It is a useful contact when pump selection is part of a broader package discussion. Confirm the offered rotary vane model, its manufacturing responsibility and the complete scope of supply before purchase.
Which Rotary Vane Vacuum Pump Factory Should You Contact First?
The right factory depends on the duty and the evidence behind its offered model. For an industrial package, start a technical discussion with DV Vacuum and compare its proposal with InPowerVac or other relevant system suppliers. For a standalone rotary vane pump, review the published ranges from VALUE, Yitaer, Linhai Tanshi, Mibay and GOFLEX against your specification. Ask NuoXuTech for additional model and factory details if its proposed solution fits your process.
Send each shortlisted company the same requirements and request an identifiable model, performance curve, factory test basis, accessory list and service plan. This produces a comparison that can support a purchasing decision and a clear acceptance check when the pump arrives.