Belt Drive Rotary Vane Vacuum Pumps

Belt Drive Rotary Vane Vacuum Pumps are oil-sealed positive-displacement pumps engineered for reliable industrial performance. By using an external motor connected via a belt and pulley system, these pumps physically isolate the motor from the pump casing. This layout optimizes thermal management, reduces operational vibration, simplifies maintenance, and provides flexible mounting configurations for OEM machine integration.

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Water Cooled Belt Drive Vane Vacuum Pump

The Water-Cooled Belt-Drive Vane Vacuum Pump integrates an oil-sealed rotary vane mechanism with a flexible belt transmission and an efficient water-cooling circuit. Designed for industrial

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High Capacity Belt Driven Vacuum Exhauster

The High Capacity Belt Driven Vacuum Exhauster is an industrial vacuum equipment solution engineered for continuous or extended operations requiring high air-handling capacity and stable vacuum

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Air Cooled Belt Drive Rotary Vane Pump

The Air Cooled Belt Drive Rotary Vane Vacuum Pump is an oil-sealed mechanical pump designed for industrial equipment requiring continuous gas extraction, stable vacuum performance, and a flexible,

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Heavy Duty Belt Driven Sliding Vane Pump

Engineered for industrial rough and medium vacuum applications, our Heavy-Duty Belt-Driven Sliding Vane Vacuum Pumps deliver consistent displacement under demanding operating conditions. The

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Low Speed Belt Drive Oil Sealed Vane Pump

The Low Speed Belt Drive Oil Sealed Vane Pump is a heavy-duty rotary vane vacuum pump engineered for reliable continuous operation in industrial systems. By using a durable belt and pulley

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Industrial Belt Driven Rotary Vane Vacuum Pump

The pump utilizes a rotary vane compression mechanism to continuously draw, compress, and discharge gas. Its belt-and-pulley transmission system separates the pump chamber from the electric motor,

Key Technical Specifications

Parameter	Standard Specification Range	Engineering Relevance
Pumping Speed	4 L/s to 150 L/s (14.4 to 540 m3/h)	Determines system evacuation time and gas throughput capacity.
Ultimate Vacuum	6x10^-1 Pa to 5x10^-2 Pa	Lowest achievable pressure under dry test conditions.
Working Pressure Range	1x10^5 Pa down to 1x10^0 Pa	Optimal continuous operating zone for industrial processes.
Motor Power	0.75 kW to 15 kW	Matched to model displacement and displacement load requirements.
Supply Voltage & Frequency	220V / 380V / 415V / 460V (50 Hz / 60 Hz)	Configurable for single-phase or three-phase regional power grids.
Inlet / Exhaust Connections	KF25 to KF80 / ISO-K Flange Options	Determines system piping alignment and flow restriction.
Oil Capacity	1.5 L to 12.0 L	Dictates internal sealing efficiency and heat dissipation.
Noise Level	62 dB(A) to 75 dB(A)	Critical factor for indoor operator safety and OEM enclosures.
Quality Compliance	ISO 9001 Certified, CE Compliant	Ensures full manufacturing traceability and equipment safety.

Primary Applications

Vacuum Packaging

Automated thermoforming, tray sealing, and chamber packaging systems.

Vacuum Drying & Degassing

Resin bubble removal, transformer oil purification, and pharmaceutical drying.

Refrigeration & HVAC Service

Moisture evacuation and system evacuation prior to refrigerant charging.

Vacuum Forming & Laminating

Plastic sheet molding, composite bagging, and woodworking hold-down tables.

Centralized Vacuum Systems

Plant-wide vacuum lines for material handling and automated pick-and-place setups.

High-Vacuum Backing

Roughing pump stage for turbomolecular or diffusion pump systems.

Engineering Selection Guide

Select your pump based on process conditions rather than nominal motor horsepower alone.
Working Pressure vs. Ultimate Vacuum: Identify your actual continuous operating pressure. Pumping speed drops significantly near ultimate vacuum pressure, so select a model whose peak volumetric efficiency aligns with your working range.
Pumping Speed Calculation: Sizing must account for total chamber volume, target pressure, required pump-down time, system leak rates, and inlet piping restrictions.
Vapor Handling & Gas Ballast: For processes containing water vapor or condensable solvents, use an integrated gas ballast valve to prevent vapor condensation inside the pump oil.
Contamination Protection: Install particulate inlet filters for dusty processes, liquid knockout pots for liquid carryover, or synthetic lubricants for demanding chemical environments.
Duty Cycle & Thermal Management: Continuous high-pressure operation generates heat. Confirm that oil capacity, ambient ventilation, and motor thermal ratings match your operating cycle.
Electrical & Transmission Alignment: Ensure motor voltage, frequency, and enclosure ratings (IP55/ATEX) match local site standards. The belt-drive setup allows quick pulley ratio adjustments to match specific flow requirements.
Installation Space: Maintain clearance for belt alignment, oil sight glass visibility, oil drainage, and exhaust filter replacement.

Quality Control & Technical Documentation

Every pump undergoes strict machining and assembly checks, including dynamic rotor balancing, housing bore precision honing, and pulley alignment verification.
Complete project documentation is available upon request:

Factory Acceptance Test (FAT) records and ultimate vacuum charts
Model-specific pumping speed curves
2D dimensional outlines and 3D CAD models
Recommended oil specifications and spare parts lists

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Q: What are the key advantages of a belt-drive pump over a direct-drive pump?

A: Belt-drive pumps run at lower rotational speeds (typically 400 to 700 RPM) compared to direct-drive units (1400 to 1750 RPM). This lower speed reduces heat, minimizes mechanical wear on vanes and bearings, lowers noise, and isolates the pump module from direct motor heat.

Q: Should I choose a single-stage or two-stage pump?

A: Choose a single-stage pump for rough vacuum processes operating mainly between atmospheric pressure and 10 mbar. Choose a two-stage pump for deep vacuum applications operating continuously below 1 mbar.

Q: How does the gas ballast valve protect the vacuum oil?

A: The gas ballast introduces a controlled amount of dry gas into the compression chamber before gas discharge. This reduces the vapor partial pressure, preventing condensable vapors (like water) from condensing into liquid and contaminating the pump oil.

Q: What maintenance is required for long-term operation?

A: Inspect the oil level and color daily through the sight glass. Check drive belt tension, pulley alignment, and inlet filter elements monthly. Replace the vacuum oil and exhaust mist filter elements every 500 to 2000 operating hours, depending on process cleanliness.

Q: What information is required to request a technical quotation?

A: To receive an accurate sizing recommendation and proposal, provide your required working pressure, chamber volume, target evacuation time, gas type or vapor load, operating voltage/frequency, and any physical space constraints.

As one of the leading belt drive rotary vane vacuum pumps manufacturers and suppliers in China, we warmly welcome you to wholesale belt drive rotary vane vacuum pumps in stock here from our factory. All customized products are with high quality and competitive price. For quotation, contact us now.