1.Compression of Air

• This is done by the multistage highly efficient air compressor.
• This is a water-cooled, balance opposed oil lubricated, heavy duty 24 hours continuously operating four stage machine.
• It also composes of horizontal rugged inter-coolers to give normal discharge conditions.
• The Compressor can be single frame primary as well as secondary equipment.
• The multi Stage Composition improves the volumetric efficiency of the compressor and reduces B.H.P.
• The inter stage temperature is low and therefore carbon formation is nil.

2.Purification of Air

This is done by the Process Skid.
The Process Skid comprises of the following components:

• After Cooler with Tank
• Nitrogen Cooler with Tank
• Moisture Separator (Purger)
• Chilling Unit with Freon Unit
• Oil Absorber filled with Alumina
• Molecular Sieve Battery on skid
• Defrost Heater
• Gas/Air Lines as per standard Layout on skid/platform
• Water Pump
• Drain Manifold complete with Ball Valves for draining moisture

3.Cooling & Liquification of Air

This is done by a highly efficient expansion engine and also by a refrigeration unit (for 100% liquid output).

Expansion Engine

Single cylinder expansion engine, hydraulically operated with variable cam for automatic control of pressure and temperature, this is also equipped with ball type valve at inlet and outlet which is proof for trouble free operation for years together complete with electric motor.

4. Air Separation (Rectification)

This is done by the special AIR SEPARATION UNIT consisting of upper & lower column and special exchangers. The separation air is by the CRYOGENIC PROCESS. The final product from a liquid Oxygen/Nitrogen goes to the storage tank.

Air Separation Column (cold Box)
(Leak proof Stainless Column)

Supplied as packed unit consisting of the following components:

• Outer Steel Casing
• Main Heat Exchanger
• Bottom Column
• Top Column
• Liquid Oxygen & Nitrogen Filter
• Instrumentation
• Cold Pipe Lines
• Insulation Materials

5. Liquid Oxygen Pump

There is one liquid pump, namely for oxygen. The oxygen is being pumped in liquid form and thus eliminated unnecessary equipment such as gasholders and Oxygen compressor. This pump has special design with SS jacket Argon welded with special jacket for insulation to avoid cold loss during pumping. It has a special seal to prevent any oil carry over during operation. The oxygen purity is high and is bone-dry because this has been provided with special types of seals designed specially for this purpose complete with electric motor vee belts, fly wheel, pulley and guard.

6. Cryogenic Storage Tanks:

Cryogenic Vessels are designed for storage and transport of liquid gases at sub-zero temperatures. Manufacturing of such cryogenic tanks requires special technical know how and sophisticated fabrication techniques. We have developed the necessary technology and have been manufacturing these cryogenic equipment like cryogenic vessels.

Air Compressor

This is a multi stage, heavy duty water-cooled air compressor for 24 hours operation, horizontal type complete with fly wheel inter cooler, foundation bolts, motor pulley, motor, v belt, guard and slide rails. This is used to compress atmospheric air.

Air Purifier / Process Skid

This consists of the following Parts:

1) After cooler with tank
2) Nitrogen cooler with tank
3) Moisture separators
4) Chilling units with Freon unit
5) Oil absorber filled with alumina
6) Molecular sieve batteries on skid
7) Defrost heaters
8) Gas/Air/water line as per standard layout on skid /platform prefabricated and ready for installation
9) Water pump
10) Inlet & outlet water lines
11) Drain manifold complete with ball valves for draining moisture. All the above equipments are properly mounted on skid /platform complete with interconnecting piping and ready for installation.

Expansion Engine

Complete with branded motor/starter of Siemens / ABB world class quality. Expansion Engine is complete with hydraulic valve control, bursting disc for safety, complete with fly wheel pressure gauge, motor pulley V belt, Belt guard, slide rails inter connected pipes (inlet and outlet)

Air Separation Column - Cold Box

This consist of the complete cold box (outer steel casing) complete with top column, bottom column, condenser, sub-cooler, re-boiler, exchanger 1, exchanger 2, control panel, instruments, pressure gauges, digital automatic temperature scanner with pt-100 sensors, expansion valves, analysis valves, inlet & outlet, air oxygen and nitrogen, gas lines with control valves neatly mounted and firmly fixed on the cold box.

Stainless steel is required for hospital oxygen, food grade quality and also to make explosion proof.

Note: Old type of copper vessels/columns/trays like Chinese and local type discontinued 10 years back.

Liquid Oxygen Pump

Horizontal single acting pump with Piston, Piston Rings - oil free - Teflon with guide ring, Safety Devices, Non-Return Valves, Motor with Pulley, V-Belts, Belt Guard, Inter Connecting Pipes with ducting to cold box suitable for filling Oxygen

High Pressure Filling Manifold

For filling high-pressure Oxygen to Cylinders. It consists of main High Pressure Isolation Valve and Pigtail filling connection with individual regulation Valve with Pressure Gauge and Safety Relief Valve.