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Holtec HOB Series Oxygen Generator

Holtec HOB Series Oxygen Generators are engineered to deliver high-purity oxygen at your own facility, eliminating the risks, costs, and delays of bulk supply. Built in North America to The American Society of Mechanical Engineers (ASME) standards, these systems offer scalable performance, advanced controls, and long-term reliability. Whether you're operating in biogas, mining, aquaculture, water treatment, or manufacturing, Holtec delivers the on-site oxygen generation when and where you need it.

On-Site Oxygen Generation for Industrial Efficiency and Safety

• 120V – 1ph – 50/60 Hz power compatibility

• ASME VIII Div 1 adsorbers for proven pressure vessel integrity

• 20-year design life adsorbers for long-term reliability

• 5 million cycle switching valves for extended service life

• 7” full-color HMI with PLC for intuitive system control

• Automatic standby mode based on user-defined pressure setpoints

• UL-listed control panel with integrated oxygen analyzer

Model

90% Purity O2 SCFM (70ºF)

93% Purity O2 SCFM (70ºF)

95% Purity O2 SCFM (70ºF)

Inlet Air

Outlet O2 to Buffer Tank

Inlet O2 Flow Control

Outlet Oxygen to User

Length (inches)

Width (inches)

Height (inches)

Weight (lbs)

HOBS-30

1.3

1.3

1.2

3/4

1/2

1/2

1/2

35

26

81.5

711

HOBS-40

1.7

1.7

1.5

3/4

1/2

1/2

1/2

35

26

101.5

751

HOBS-50

2.2

2.2

2

3/4

1/2

1/2

1/2

35

26

81.5

1004

HOBS-60

2.7

2.7

2.5

3/4

1/2

1/2

1/2

35

26

97.5

1021

HOBS-75

3.4

3.3

3.1

3/4

1/2

1/2

1/2

35

30

81.5

1085

HOBS-90

4.1

4

3.7

3/4

1/2

1/2

1/2

35

30

101.5

1225

HOBS-110

4.8

4.7

4.3

1

3/4

1/2

1/2

35

30

81.5

1327

HOBS-125

5.6

5.5

5.1

1

3/4

1/2

1/2

35

30

92.5

1485

HOBS-145

6.2

6.1

5.7

1

3/4

1/2

1/2

35

37

90

1547

HOBS-165

7.3

7.2

6.7

1

3/4

1/2

1/2

35

37

97.5

1685

HOBS-195

8.6

8.4

7.8

1

3/4

1/2

1/2

35

39

91.5

1916

HOBS-220

9.7

9.6

8.8

1

3/4

1/2

1/2

35

39

100.5

2099

Notes:

  1. Expected capacities assume inlet pressure 85 psig.
  2. Oxygen buffer tank required. Consult factory for sizing.
  3. Height and Weight are estimates.
  4. Electrical Requirements: 120V/1PH/60Hz
  5. Consult factory for performance at other temperatures, pressures and purities.
  6. Printed Copies are not revision controlled.

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