Reference time for maintenance of vulnerable parts in VPSA oxygen production system

Oct 21, 2025

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VPSA oxygen production systemVPSA oxygen production system is a more environmentally friendly and energy-saving vacuum pressure swing adsorption air separation equipment. As a mechanical equipment, regular maintenance is essential. This article will comprehensively introduce the service life of various vulnerable and consumable parts in VPSA oxygen production system for your reference.

 

VPSA oxygen production system consists of seven parts: blower system, vacuum pump system, instrument air system, oxygen and nitrogen separation system, oxygen balance system, oxygen booster system, and electrical control system. Among them, vulnerable and consumable parts include lithium molecular sieve, air filter element, pneumatic valve seal, solenoid valve, oxygen analyzer sensor and oxygen booster piston ring.

 

Reference time for maintenance of vulnerable parts in VPSA oxygen production system

 

Under normal use, the service life of the above-mentioned vulnerable and consumable parts is as follows;

 

1. Under normal use, lithium molecular sieve can work continuously for about 8 years. Under normal use and operation, molecular sieve does not need to be added or replaced.

 

2. The air filter works continuously for 4000 hours.

 

VPSA oxygen production system3. The pneumatic valve seal needs to be replaced after the pneumatic valve is opened and closed 1.5 million times. If it is within 1.5 million times, it does not need to be replaced as long as it operates normally and there is no leakage.

 

4. The electromagnetic valve is also replaced after opening and closing 1.5 million times; if it is within 1.5 million times, it does not need to be replaced as long as it operates normally and there is no leakage.

 

5. The oxygen analyzer sensor needs to be replaced after 20,000 hours or when the sensor fails

 

6. The piston ring of the oxygen booster needs to be replaced after 3,000 hours or when it is worn

 

It can be seen from this that the maintenance frequency of the VPSA oxygen production system is not high, and the total maintenance cost is not high. Compared with deep cold air separation and traditional PSA oxygen production systems, it can be regarded as more economical and environmentally friendly.
 

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In addition to VPSA Oxygen Generators, we also produce PSA Oxygen Generators, storage tanks, heat exchangers and other products. If you are interested in VPSA Oxygen Systems or other products, please feel free to send an email to sales@gneeheatex.com. We will be very happy to serve you.

 

Main technical parameters of VPSA oxygen production: Purity 80%

Model specification

VPSA - 500

VPSA - 1000

VPSA - 2000

VPSA - 3000

VPSA - 4500

VPSA - 6250

VPSA - 7500

Gas production Nm3/h

500

1000

2000

3000

4500

6250

7500

Voltage

10kv

10kv

10kv

10kv

10kv

10kv

10kv

Installed power KW

250

435

715

1120

1600

2240

2500

Valve gas consumption m3/min

1.0

1.5

2.0

3.0

5.0

6.0

6.5

Cooling water circulation m3/h

20

40

80

110

120

130

140

Soft water consumption m3/h

1.92

2.7

2.88

3.9

4.2

4.5

4.8

Main technical parameters of VPSA oxygen production: Purity 93%

Model specification

VPSA- 200

VPSA - 300

VPSA - 400

VPSA - 500

VPSA - 600

VPSA - 800

VPSA - 1000

Gas production Nm3/h

200

300

400

500

600

800

1000

Voltage

380v

380v

380v

380v

380v

10kv

10kv

Installed power KW

120

165

200

270

317

380

450

Valve gas consumption m3/min

0.5

0.7

0.9

1.1

1.4

1.6

2.0

Cooling water circulation m3/h

11

15

20

26

30

38

55

Soft water consumption m3/h

1.2

1.8

1.98

2.1

2.1

2.4

2.7

Main technical parameters of VPSA oxygen production: Purity 93%

Model specification

VPS-1200

VPS-1600

VPS-2000

VPS-3000

VPS-3600

VPS-4500

VPS-5500

Gas production Nm3/h

1200

1600

2000

3000

3600

4500

5500

Voltage

10kv

10kv

10kv

10kv

10kv

10kv

10kv

Installed power KW

565

715

1000

1250

1600

2000

2500

Valve gas consumption m3/min

2.0

2.4

3.0

3.3

4.2

5.5

6.5

Cooling water circulation m3/h

62

90

100

110

120

130

140

Soft water consumption m3/h

2.7

2.88

3.3

3.6

4.2

4.5

4.8