Spantech Engineers. PSA Nitrogen Generation plant Manufacturers India

TTC Industrial Area, Navi Mumbai, Maharashtra

Due to cooling of compressed air, condensation of oil & water vapour takes place in Moisture Separators, Air Receivers, Filters, etc. Regular draining of these equipment is an essential maintenance function. By installing Auto Drain Valves, you can ensure that all equipment of the Compressed Air System get drained regularly without manual dependence, except for periodic checks. Low cost timer based ADVs are commonly used, but for larger Systems, zero air loss level based ADVs are used

Draining of Compressed air equipment such as Air Receivers, Moisture Separators, Filters, etc. is commonly done by low cost, timer - operated Auto Drain Valves. While these are effective in their functioning, they will open at the set time whether there is any condensate to be drained or not. This will result in loss of compressed air (and hence loss of energy), when there is no condensate to be drained.

The 'LEVEL SENSING Auto Drain Valve operation is level - based without any timer. The ADV has a Reservoir (in which condensate accumulates) connected to a drain valve which opens when condensate level reaches the top and closes when condensate level reaches the bottom. These operations are carried out by sensors placed at different levels of the reservoir. By this method only condensate is drained when the ADV opens and there is no loss of compressed air, resulting in saving of energy.

The reservoir & valve sizes are matched with the size and type , equipment to be drained, so that the ADV does not operate too frequently. Isolation valve & strainer are provided along with the ADV, for easy cleaning & servicing.

Hot compressed air coming from Air Compressor cannot be used directly in most applications. It is therefore cooled to a temp of around 40o C, which is done in the Aftercooler

This is a shell & tube type Heat Exchanger where compressed air in the shell is cooled by plant cooling water circulating in the. tubes. The liquids which condensed due to cooling are separated by the in- built Moisture Separator. Draining can be done manually or by Auto Drain Valve.

SPANTECH Oxygen and Nitrogen Generation Systems are based on non-hazardous and low pressure PSA & VPSA technologies which use compressed air to produce nitrogen & oxygen onsite at a much lower cost than purchased O2 & N2. We believe in Generating Solutions which help you cut your gas costs as well as eliminate the risk of handling high pressure cylinders bottles.

High pressure N2 cylinders are commonly used as source of N2. A better option would be to produce your own low pressure N2 by installing our Nitrogen Generator.

Compressed air coming from the Receiver containing solid, liquid & vapour contaminants enters the Dryer through the Pre-filter (where solid & liquid contaminants are removed). It then passes through Oil Removal Filter and enters into Adsorption Tower A1 through a 3-way valve (CV-1) where it gets dried and then passes out of the Dryer through the After-filter. A part of this dry air passes through Tower A2 through the Purge Control Valve, where it picks up the moisture from the adsorbent thereby regenerating it and making it ready for the adsorption cycle. The purge air exhausts out of the Dryer through Purge Exhaust Valve (CV-2) of Tower A2.

When air is cooled, the temp at which condensation takes place is termed the Dew Point (DP). A simple method of determining the DP is to cool the air around a highly polished surface and cooling it. When the DP is reached, condensation on this surface makes it cloudy and the temp observed at this point is the DP. In our Dew Point Measurement System, cooling is done by dry ice ( solid CO2) in a polished tube and temp is measured by a Digital Temp Indicator. This system can be used whenever periodic checking of dew point is required.

SPANTECH ENGINEERS PVT.LTD is run by a group of professionals founded in 1992 by a highly experienced engineer from IIT Bombay as a firm manufacturing Compressed Air Systems at first and later integrating forward into PSA Nitrogen Generation Systems, PSA VPSA Oxygen Generation Systems and Ozone Generation Systems This firm became a corporate entity in 2010. We became a ISO 9001-2008 Company in 2011.