Alva Engineers

ECODRAIROne of the classic product rangers from the house of sanpar. Ecodrair series are those refrigerant compressed air dryers which employs tube-in tube design of air to air and evaporator in the dryer. The capacity ranges from 5 cfm to 180 cfm with operating pressures from 4 bar g to 16 bar g.,Wherein higher pressure ranges are also available up to 50 bar g.

These generally comes with air cooled condensers and have proven to work efficiently even at ambient temperatures soaring up to 50°c. This provides compressed air at a consistent pressure dew point of (+) 3 ° c and with a pre filter and after filter ensures the compressed air quality conforms to iso 8573.1 class 1.4.1. Where,1 stands for dust particles less than 5 micron4 stands for pressure dew point of (+) 3 ° c1 stands for residual oil content less than 0.01 mg/m3.
The dryer is incorporated with hot gas bye pass valve which acts as modulating valve during the air flow fluctuations. The dryer is also incorporated with capillary tube to ensure consistent evaporating temperature irrespective of load fluctuations and ambient temperature variations.

The dew point indicator is of digital type showcasing the high accuracy of the pdp maintained. The accompanying filters have differential pressure indicators which helps in replacing the filter element not too late and not too early so that we could extract the full life of the filter element. These dryers are compact and it’s’ footprint is minimal. Inlet and outlet connections are the rear of the dryer, making it convenient for installation.
Silent workaholic dryers that these are, they are most reliable and need very little or no maintenance except cleaning of condenser fins from time to time depending on the dust conditions at the site and the cleaning of zero-loss compressed air automatic drains.

Salient features
• Air Cooled• Classic tube- in-tube type Heat Exchanger• Hermetically Sealed Compressor• Modulating capacity controller - 0-100% Thermal Load Handling• Eco-Friendly refrigerated R134• Fan Pressure Switch• Capillary Tube Expansion Device• Modular-In Design for optimum Serviceability
Technical Specification
• Operating Pressure : 7 Bar g• Air Inlet Temperature : 45°C• Pressure Dew Point : 3°C• Condenser Cooling Air Temperature : 40°C

Moisture separator is a very special design from the house of SANPAR as it has no moving parts and need no replacements. This equipment is what we call a work house. It does not need any attention, and is an individual value contributor in the compressed air treatment system

The incoming moisture laden air enters the moisture separator and creates a whirl inside the separator – thanks to the well angled separator – the moisture gets separated from the compressed air by centrifugal force at a tangential angle. The water particles that hit the cold surface od the receptacle trickles down to the bottom only to get drained off through the automatic drains.
At a constant pressure drop of not more than 0.06 bar g, this moisture separator is the least energy consuming solution. This has the similar aluminum pressure die cast housing or carbon steel housings depending on the air flow rates.

Salient features of Sanpar Moisture Separator :• Very high efficiency• Non-corrosive aluminum die cast body• Compact design• Maintenance free ( no moving parts )• Long life• Manual drain and auto drain facility

MICROFILTERSBy definition, filters are supposed to remove unwanted particles- be it solid, liquid, aerosols, mist or gas. Sanpar industries pvt ltd is one of the leading organisations in india manufacturing “microfilters”. These filters are in use in multitudes of industries of various capacities across the indian terrain, justifying the usage they are intended to. Painting, instrumentation, pneumatics, textiles are some of the critical application that these filters have served the purpose with acknowledged aplomb.
The concept of “low flow: long life” has been the mantra for SANPAR rather than “high flow: short life” while designing and selecting its filter cartridges. The lunatic adherence to this concept is in accordance with the tagline of “energy conservation in compressed air treatment” of SANPAR. This philosophy has stood in good stead when it comes to customer delight and their retention.
These cylindrical filter elements are mounted in aluminum pressure die cast housings or carbon steel housings when it comes to employing multiple cartridges to cater to the higher air flows. While the filtered air conforming to the standards of ISO 8573.1 class 1 for dust and class 1 for residual oil content is lead to the outlet of the housings, the unwanted oil is drained out at the bottom of the housing through a no loss of valuable compressed air drain, which could be float type or liquid level controlled type or electronic timer based drain solutions
SANPAR manufactures micro filters essentially in 5 categories:
PRIMARY PRE FILTER :SERIES : PPF :These filters use ss 316 woven pleated mesh to filter particles up to 25 microns.
PRE FILTER :SERIES : PF :These filters use cellulose acetate as filtering media and filters particles up to 3 microns.
AFTER FILTER :SERIES: AF:These filters use borosilicate glass fibre to filter dust particles up to 0.1 micron and oil particles up to 0.1 mg/m3.
FINAL FILTER :SERIES : FF:These filters use borosilicate glass fibre to filter dust particles up to 0.01 micron and oil particles up to 0.01 mg/m3.
ACTIVATED CARBON FILTER :SERIES : AC :These filters use the most versatile material activated carbon to adsorb to oil vapour up to 0.003 mg/m3.

Accessories for compressed air filters :
Differential pressure gauge:These filters are adequately equipped with differential pressure gauges and indicators to ensure that filter cartridges are replaced not too early ; not too late which saves energy.
DrainsEach filter is supplied with an automatic drain to drain off the unwanted oil at the bottom of the housing through a no loss of valuable compressed air drain, which could be float type or liquid level controlled type or electronic timer based drain.
Condensate Level IndicatorThis enables to have a visual inspection of the condensate accumulated at the bottom of the filter. This monitors the drain’s performance or to know when to drain-off, if in case the manual drain is fitted.

When condensate is not drained from a compressed air system it damages compressed air system components. drain valves remove condensate and thereby protect the components downstream to the compressed air treatment system. a drain valve should be installed at each place in your compressed air system where condensate accumulates.
Sanpar make internal drain is a no air loss drain. sanpar make internal drain is float type drain with standard 1/2" bsp connections. there is no-air loss drain.An AUTOMATIC TIMER CONTROLLED DRAIN consists of a strainer with a solenoid valve (230v A/C). The drain valve opens based on the timings set in the drain. Also the time interval between the successive openings of the valve can be set. The drain has standard 1’’ BSP connections.

This Mechanical Float Drain is highly-effective and requires no Electrical Supply for its operation. Also ensuring Zero precious Compressed Air Loss

Salient feature SANPAR make NO AIR LOSS CONDENSATE DRAIN
• Drain casted in an Aluminum Alloy Body• It contains a stainless steel float ball• It discharge only the condensate automatically (not the compressed air)• It is also equipped with a manual drain valve for manual operation• Standard 1’’ BSP connection• Easy maintenanceSANPAR Level Control Drain
Zero Air Loss
½” BSP/ 1” BSP
The SANPAR Level Sensor Drain which ensures there is no loss of compressed air while the condensed moisture/water is drained off the Dryer/Filter/Air Receiver. The solenoid valve closes while the condensed water level reaches the bottom sensor and valve opens while the level reaches the top sensor. There is always a small amount of water that remain in housing, preventing the compressed air draining it along with water. Drain housing are equipped with all of the features required to make this the most efficient and cost effective draining solutions for compressed air system. The drain comes with an aluminium die cast housing that can withstand a maximum working pressure of 16 bar(g).

Xēros series is manufactured with air cooled condensers and water cooled condensers. Catering to a wide range of air flows - from 200 cfm to over 6000 cfm at a design pressure of 7 bar g. These dryers use eco-friendly refrigerants like R407C and R 134A and employ state- of – the – art microcontrollers.
• Latest Technology of aluminum plate heat exchangers• Capacity : 85 CFM to 10,000 CFM• Operating Pressure : 3 to 16 bar g• High Pressure Dryers : up to 50 bar g also available made to suit individual requirements
SANPAR manufactures water cooled refrigerant compressed air dryers (xeros) designed specifically for use in tropical countries where the ambient temperatures are considerably high, normally ranging up to 45-50°c.

Salient features
• Latest Technology of aluminum plate heat exchangers• Plate type heat exchange are compact, high-efficient and light in weight• Latest technology of vacuum brazing used on the plate type heat exchangers• Heat Exchangers put to helium leak test up to 27-bar g• Optimum selection of compressor with high COP contributes to power benefits• Victaulic coupling provide on the compressed air inlet and outlet connections for easy maintenance• Negligible pressure-drop in the refrigeration line, hence utilizing complete rated cooling capacity of the compressor• Heat Exchangers easily retrofitted without affecting the refrigeration line. Rotolocks at the refrigerant inlet and outlet• Refrigeration piping leak tested with electronics detectors ensuring that the leak is of the order of 3 g/year• RS 232 port with interface software provided as` an optional feature for remote monitoring. • Capacity: 85 to 10,000 cfm• Operating Pressure: 3 to 16 bar g• High Pressure Dryers up to 50 bar g also available made to suit individual requirements
Technical Specification are for the following standard conditions
• Operating Pressure > 7 Bar g• Air Inlet Temperature: 45°C• Pressure Dew Point: +3°C - ISO 8573.1 Class 1.4.1• Condenser Cooling Air / Water Temperature: 40°C / 32°C

AIR COOLED


Salient features of Sanpar After Cooler (Air Cooled) :• Highest quality copper tubes and aluminum fins are used for effective heat transfer and durability• Low pressure drop (less than 0.1 bar)• Low noise (less than 60 decibels)• Low maintenance• Silver brazing rods used for efficient thermal conductivity• Highly reliable fan assembly with protective guard• More than 10 standard models to choose from to meet individual requirement• Compact models: occupies less floor space• Higher models on request
Technical specification [Air Cooled]• Air inlet temperature : 120° c• Ambient temperature : 45° c• Outlet air temperature : 10° above ambient• Operating pressure : 7 bar (g))

WATER COOLED

Water from a cooling tower is used to cool the compressed air in a Water Cooled After Cooler. SANPAR make Water Cooled After Coolers are all custom made, hence complete flexibility in design considerations to suit the customer’s requirements.
Salient features of Sanpar After Cooler (Water Cooled) :• Highest quality copper tubes are used for effective heat transfer and durability• Removable tube bundle• Revolutionary tube inserts in each cu tube for enhanced heat transfer• Liberally positioned ss 316 baffle plates for effective heat transfer• Silver brazing rods used for efficient thermal conductivity• Low pressure drop (less than 0.1 bar)• Low maintenance• Highly compact and efficient design• Design complaince to asme section viii - div 1
Technical specification [Water Cooled]• Air inlet temperature : 120° c• Ambient temperature : 45° c• Outlet air temperature : 10° above ambient• Operating pressure : 7 bar (g)

SANPARhas the expertise and proven track record to design and manufacture dryers to supply clean dry air using the techniques of Adsorption process. Adsorption Drying is a process which is very popular and tested from immemorial. It is a reversible process. Moisture is adsorbed during the drying cycle and desorbed during the regeneration cycle.
Hence there are two towers; while one in the process of drying, the other is on the regeneration mode.Adsorption dryers could be categorized in to additional categories:• Pressure Swing Adsorption / Heatless Dryers• Heat of Compression Dryers• Blower reactivated Air Dryers• No- purge- loss Adsorption Dryers
Adsorption dryers are tailor designed to meet the individual requirements:The quality of dryness required for a particular application,The type of Air Compressors used – Lubricated or Non lubricated,The operating pressures,Operating temperatures
SANPAR design team put in their experience to design to deliver suit- the individual- application dryers.
Low pressure drop and low purge loss Along with least power consumption is the hallmark of SANPAR Dryers.
The heart of the Adsorption dryers consists of Desiccants, Pressure vessels, Directional Valves and the control logic.
The desiccants deployed are Molecular sieves, Activated Alumina or Silica gel.
The dryers can be designed to deliver bone dry air up to the dryness of (-) 70 deg C

Technical Specification
• Operating Pressure : 7 Bar g• Air Inlet Temperature : 45°C• Pressure Dew Point : -60°C• Condenser Cooling Air Temperature : 40°C