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PRISM® Nitrogen Membrane Systems
Oxair Gases produces two main different types of PRISM® Nitrogen Membrane Systems.
These are the High-Capacity Series and the Cabinet Series.
PRISM® Nitrogen Membrane Systems
High-Capacity Series
Oxair Gases’ family of High-Capacity Membrane Nitrogen Systems meets the needs of
large-volume customers. The systems use a proprietary high-capacity membrane fibre
developed to minimise your electrical power consumption. Engineered for fast installation,
low maintenance, and simple operation, these systems are an ideal supply alternative for a
wide range of applications, with significant operational savings over liquid nitrogen
tanks. Models are available to supply your high-volume requirements up to 70,000 scfh with
a range of purities up to 99.9%.
Technology at Work the World Over
The heart of Oxair Gases’ High-Capacity Systems is the unique membrane technology
pioneered by Permea, Inc., a wholly-owned subsidiary of Air Products and a leading
innovator in gas separation technologies.
These systems’ specially-engineered separation modules contain hollow fibre membranes
that selectively remove oxygen, water vapour, and carbon dioxide from compressed air to
efficiently produce nitrogen. Purity and flow rate can be adjusted to suit individual
requirements. Thousands of systems using our proprietary membrane technology are in
operation at sites around the world. Membrane systems generate nitrogen at significant
savings over liquid nitrogen. The PRISM High-Capacity Systems can optimise costs over
traditional membrane systems.
Designed to Meet Your Needs
 | Nitrogen purity adjustable from 95.0 to 99.9% for greatest flexibility and cost savings.
|
| Expansion capability allows system to accommodate increased volume requirements. |
| Compact, weatherproof housing allows operation at low ambient temperatures. |
| Floor-mounted configuration requires no special foundations. |
| Removable panels provide easy internal access for system maintenance. |
| Simple design with few moving parts means easy operation, minimal maintenance, maximum
reliability. |
| Advanced PLC control system enables remote operation and monitoring through optional
telemetry (Series 5000). |
| Internal heating facilitates easy on/off. |
| Automatic shutdown during low demand saves power. |
| High-spec construction available for demanding environments. |
High-Capacity
Series Specifications
|
Feature
|
Series 4000
|
Series 5000
|
| Nitrogen purity analyser |
|
 |
| Off-specification alarm |
 |
 |
| Digital control system |
NA |
 |
| Inlet air filters |
 |
 |
| Moisture separator |
 |
 |
| Optional air source |
 |
 |
| Supply air inlet (NTP-F) |
2 in (minimum) |
2 in (minimum) |
| Nitrogen outlet (NTP-F) |
1 in (minimum) |
1 in (minimum) |
| Inlet air pressure (psig) |
100-200 |
100-200 |
| Nitrogen product pressure (psig) |
80-180 |
80-180 |
| Cabinet size (L x W x H) |
4 m x 1.2 m x 2.1 m to
4 m x 1.8 m x 2.1 m |
4 m x 1.2 m x 2.1 m to
4 m x 1.8 m x 2.1 m |
| Maximum weight (kg) |
2750 |
2000 |
| Permeate vent gas fitting |
2 in CPVC (minimum) |
2 in CPVC (minimum) |
|
Standard
|
High Specification
|
| Tubing |
Nylon |
Stainless steel |
| Parts |
Copper, brass, steel |
Stainless steel |
| Piping construction |
Threaded |
Welded |
| Control panel |
NEMA 12 |
NEMA 4, 4x, 7 |
| Vent piping |
CPVC |
Welded steel |
| Termination points |
Threaded |
Flanged |
Options
|
| Additional oxygen analyser for safety-sensitive
applications |
| Compressor, skidded air tank, and/or skidded nitrogen
receiver tank |
| Flowmeter |
| Frost protection |
| High-spec construction for oil field and petrochemical
locations |
| Remote monitoring |
PRISM® Nitrogen Membrane Systems
Cabinet Series
Oxair Gases’ low-cost Cabinet Membrane Systems combine the economy and high supply
reliability of on-site nitrogen generation with a compact design that fits easily into
existing indoor installations. Engineered for flow rates from 5 to 3900 scfh as well as
low maintenance and easy operation, this family of PRISM nitrogen systems is an ideal
supply alternative for a wide range of applications. The systems provide significant
savings over traditional cylinders, dewars, and bulk nitrogen tanks.
Proven Technology
PRISM Cabinet Systems use the membrane technology pioneered by Permea, a division of
Air Products and Chemicals and a leading innovator in gas separation technologies.
These systems feature specially-engineered separation modules containing hollow fibre
membranes that selectively remove oxygen, water vapour, and carbon dioxide from compressed
air to efficiently produce nitrogen. Purity and flow rate can be adjusted to suit
individual requirements. Thousands of PRISM membrane systems have been installed around
the world.
Features and Flexibility for Your Application
Experience proves that every application and location is unique. Oxair Gases’ family of
Cabinet Membrane Systems is available with a number of standard and optional features to
suit your particular needs for instrumentation, air source, and other requirements.
Membrane systems generate nitrogen at significant savings over liquid nitrogen or cylinder
nitrogen.
Designed to Meet Your Needs
| PRISM Cabinet Membrane Systems reduce nitrogen supply costs over conventional supply
modes. |
| Proven proprietary membrane technology produces highly-reliable nitrogen supply at your
site, replacing cylinders, dewars, or tanks. |
| Compact cabinets fit easily into existing facilities and simplify installation. |
| The Series 2000 design with expansion capability allows system to accommodate increased
volume requirements. |
| Nitrogen purity adjustable from 95.0% to 99.9% for greatest flexibility and cost savings
(Series 500 preset at 99%). |
| Automatic shutdown during low demand (not available on Series 500). |
| Simple design with few moving parts means easy operation, minimal maintenance, maximum
reliability. |
| Instant nitrogen generation upon connection to air supply. |
| Generates dry nitrogen with a dew point down to -90°F (at atmospheric pressure) for
moisture-sensitive applications. |
| Cabinet Series
Specifications |
Feature
|
Series 500
|
Series 1000
|
Series 2000
|
| Expansion capability |
NA |
NA |
|
| Nitrogen purity analyser |
NA |
|
|
| Off-specification alarm |
NA |
|
|
| Inlet air filters |
|
|
|
| Optional air source |
|
|
|
| Power rating (kW) |
not required |
0.55/1 |
1.0 |
| Supply air inlet (NPT-F) |
0.95 cm |
0.64 cm to 0.95 cm |
1.9 cm |
| Nitrogen outlet (NPT-F) |
0.64 cm |
0.64 cm to 0.95 cm |
1.3 cm |
| Air inlet pressure (psig) |
80-175 |
80-200 |
80-200 |
| Nitrogen pressure (psig) |
70-130 |
60-170 |
60-170 |
Nitrogen purity
(% nitrogen) |
99.0 |
95.0-99.9 |
95.0-99.9 |
| Nitrogen flow (scfh) |
8-12 |
5-900 |
40-3900 |
| Cabinet size (L x W x H) |
21.6 cm x 31.75 cm
x 78.7 cm |
45.7 cm x 58.4 cm x 86.4 cm to
45.7 cm x 63.5 cm
x 122 cm |
1.02 m x 0.61 m x 1.65 m |
| Maximum cabinet weight (kg) |
20 |
125 |
250 |
| Permeate vent gas fitting |
NA |
1¼ in CPVC |
1¼ in CPVC |
Options
|
| Air tank |
|
 |
 |
| Compressor |
NA |
 |
 |
| Flowmeter |
|
 |
 |
| Nitrogen storage tank |
|
 |
 |
| Quick-disconnect hose fittings |
 |
 |
NA |
| Additional oxygen analyser for safety-sensitive
applications |
NA |
NA |
 |
    
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