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High-Efficiency PGVe Series PM VSD Screw Vacuum Pump from China Suppliers & Factory for Optimal Performance

Introducing the PGVe Series Permanent Magnet Variable Frequency Screw Vacuum Pump, engineered by Deman, a leading vacuum technology supplier in China. Our commitment to Creating Infinite Value for Client's Efficient Compressed Air is now extended to high-performance vacuum solutions. This innovative vacuum pump offers enhanced efficiency, unmatched reliability, and precise pressure control, setting a new standard compared to traditional systems. Our skilled R&D team works closely with clients to design tailored solutions that meet specific vacuum requirements, ensuring durability and energy savings. As a trusted factory in China, we are dedicated to providing advanced, energy-efficient vacuum technology that empowers your operations

Product Details

Product Highlight

⚡ Superior Energy Saving

PM VSD technology matches output to demand, saving energy and water compared to conventional pumps.

🛡️ Low Failure Rate

Non-contact rotors, 7×24 continuous operation, failure rate 90% lower than traditional pumps.

⏳ Longer Lifespan

Robust construction delivers durable, continuous operation with a 10× longer lifespan exceeding conventional pumps.

🎯 More Precise Pressure Control

Advanced system ensures stable vacuum pressure for improved process consistency and yield compared to conventional pumps.

🔇 Quieter Operation

Direct-drive, low-speed design ensures minimal vibration and noise level significantly lower.

☁️ Deman Cloud Intelligent Control System

Built-in Cloud function enables 24/7 monitoring, sends out real-time early-warning alerts when there is data deviation, reducing unexpected downtime losses.

Product Structure

Smart-Positioned Consumables

· The oil separator features a dedicated maintenance panel on its top cover.

· Allowing a quick and easy replacement of the oil separation element, minimizing downtime and service costs.

VSD-Specific Vacuum Intake Valve

· Coordinating with the PM VSD drive, to manage airflow during startup to ensuring rapid attainment of the target vacuum level.

· Preventing air backflow during shutdown, thereby protecting the vacuum pipeline system.

Vacuum Pump-Specific Screw Rotor Air-end

· A dedicated design for rough vacuum applications and delivers exceptional performance.

· Featuring a rotor with large diameter and lower rotational speed for more stable operation.

· Its optimized profile and structure achieve a 12% improvement in sealing, a 15% reduction in internal leakage, and a 30% increase in overall efficiency.

· Precision machining technology ensures high sealing and low leakage in the compression chamber.

High-Performance Cooling System

· A high-airflow, low-noise axial fan with a customized motor are regulated by the central control system to meet operation requirements.

· The advanced plate-fin heat exchanger provides an extra-large dissipation area with separate circuits for oil and air.

· This superior design ensures stable operation and protects components even in high-temperature ambient conditions.

· Ensures stable equipment operation even in high-temperature environments.

Three-Stage Vacuum Separation System

· Stage 1: Cyclonic Separation — Utilizes centrifugal force for preliminary oil-air separation.

· Stage 2: Impaction Separation — The airflow's contact with the wall surface to further separate oil droplets.

· Stage 3: High-Efficiency Oil-Air Separator — Employs original, imported multi-layer micro-glass fiber media to remove finest oil aerosols, ensuring exceptionally clean exhaust air.

Technical Parameter

Model Specification	Nominal Slip Rate m³/hr	Extreme Pressure mbar(a)	Intake Air Temperature Range ℃	Inlet Diameter	Exhaust Pipe Diameter	Outline Dimension (L×W×H) mm	Power kW
PGV 6e-450	450	0.35	0–46	G2	G1 1/2	1050×700×793	5.5
PGV 8e-580	580	0.35	0–46	G2	G1 1/2	1050×700×793	7.5
PGV 11e-730	730	0.35	0–46	DN 80	G2	1180×930×1090	11
PGV 15e-900	900	0.35	0–46	DN 80	G2	1230×930×1090	15
PGV 22e-1300	1300	0.35	0–46	DN 100	DN 80	1680×1300×1180	22
PGV 30e-1800	1800	0.35	0–46	DN 150	DN 100	2200×1260×1390	30
PGV 37e-2200	2200	0.35	0–46	DN 150	DN 100	2200×1260×1390	37

Frequently Asked Questions

What is PM VSD technology and how does it save energy in screw vacuum pumps?

PM VSD (Permanent Magnet Variable Speed Drive) technology automatically adjusts the motor speed to match actual demand. Unlike fixed-speed conventional pumps that run at full power regardless of load, PM VSD pumps only consume energy proportional to the required output — significantly reducing energy and water consumption during partial-load operation.

How does the three-stage vacuum separation system work?

The three-stage system ensures exceptionally clean exhaust air. Stage 1 uses cyclonic separation via centrifugal force for initial oil-air separation. Stage 2 employs impaction separation where airflow contacts the wall surface to remove oil droplets. Stage 3 uses a high-efficiency oil-air separator with imported multi-layer micro-glass fiber media to capture the finest oil aerosols.

What makes the screw rotor air-end design superior to standard vacuum pumps?

The vacuum pump-specific screw rotor air-end features a large-diameter rotor running at lower rotational speeds for enhanced stability. Its optimized profile achieves a 12% improvement in sealing, 15% reduction in internal leakage, and 30% increase in overall efficiency. Precision machining ensures consistently high sealing performance in the compression chamber.

Can the PGV series vacuum pump operate in high-temperature environments?

Yes. The PGV series is equipped with a high-performance cooling system featuring a high-airflow, low-noise axial fan and an advanced plate-fin heat exchanger with separate oil and air circuits. This design ensures stable operation and component protection even in high-temperature ambient conditions. The standard intake air temperature range is 0–46°C.

What is the Deman Cloud Intelligent Control System and what does it monitor?

The Deman Cloud Intelligent Control System is a built-in IoT-based monitoring platform that enables 24/7 remote equipment surveillance. It continuously tracks operational data and automatically sends real-time early-warning alerts whenever data deviations are detected — helping operators minimize unexpected downtime and reduce maintenance costs proactively.

Which PGV model should I choose based on my required flow rate and power?

The PGV series covers a wide range of capacities from 450 m³/hr (5.5 kW) up to 2,200 m³/hr (37 kW). For smaller applications, the PGV 6e-450 or PGV 8e-580 models are ideal. For medium-scale industrial use, consider the PGV 11e-730 to PGV 22e-1300 range. For high-volume demands, the PGV 30e-1800 or PGV 37e-2200 are recommended. All models achieve an extreme pressure of 0.35 mbar(a).

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