SIGMA BAG IN, BAG OUT FILTER MODULE

Introduction :In pharmaceuticals many of HEPA. Filters are used for containment, that is on the exhaust side of a critical process. Whose dangerous by product. Such as radioactive particulars, harmful viable organisms or know carcinogen agents must be prevented from entering the atmosphere. When filters become contaminated In service, a method for their removal without direct operator contact is necessary. To protect the atmosphere from carcinogens and harmful contaminant, Bag in, Bag out module are to be used. ‘SIGMA is supplying Bag in, Bag out module with high quality bags For remove of Filters which have collected toxic or potentially dangerous materials during its service life and all tools required for removal of filters.

DISPENSING AND SAMPLING BOOTH (REVERSE FLOW UNIT)

Prefilters:- SIGMA Filters comprising no Woven synthetic / Fire retardant the pre filters and Intermediate Filters made of non woven synthetic Fire retardant media. Specially treated with anti fungal and bactericidal reagents to inhibit growth of micro, organisms. These media is fire retardant, water repellent, and washable type.
Pre filter EU – 5 grade type having eff. 40-60% on Eurovent std. and intermediate filter is EU-7 grade type. Laving eff. 80%-90% on eurovent std.

Final Filter:- These filter is minirleate separatorless HEPA filter or Absolute filters with aluminium separators. Having eff. rating 99.97% down to 0.3 micron when tested as per IES-Rp-cc-001 -86 std. Operation and cleanliness level
Ambient air is drawn in through a prefilter & intermediate filter on the top of cabinet and introduced in the work zone through the HEPA filter. The average velocity in the work zone is maintained between 0.45 m/sec to 0.65 m/sec. Air cleanliness in the work zone is better than class 100.in accordance with U.S. FED. Std. 209 E.

Motor, Blower, Fans :- High Performance noise abated, statically and dynamically balanced impellers, Dual outlet blower assembly. Statically and dynamically balanced, direct driven type motor. Fans are mounted on vibration isolation mounts to minimize vibration.

SIGMA BAG TYPE AIR FILTERS

Introduction :These Filters are designed specifically for very high eff. Requirement in paint shop for automobile Industry, It is also designed for pharmaceutical, Chemical Industry, synthetic rayon Industries. These Filters offers low resistance and high dust holding capacity.
The Filter frame are made of metallic sheet and rods with powder coated. The bags media of Filter is Imported glass Fibre media and non woven synthetic fibres. The bag are made with stitching or welding. The bags media are bonded and assembled in such manner in the casing to avoid leakages.

Sr. No.	Filter Type	EU Class	Dust Collection	Filter Size	No. of Bags	Length of Bags	Air flow Cmh.
1	F7	EU-7	99%	610X610X25	6	750	3400
2	F7	EU-7	99%	592X592X25	6	750	3400
3	F7	EU-7	99%	592X300X25	4	750	1700
4	F5	EU-5	98%	610X610X25	6	600	3600
5	F5	EU-5	98%	592X592X25	6	600	3600
6	F7	EU-5	98%	592X300X25	4	600	1800
7	G3	EU-3	90%	592X592X25	6	360	3600
8	G3	EU-3	90%	610X610X25	6	360	3600
9	G3	EU-3	90%	610X300X25	4	360	1800

SIGMA POLYFIBRE OR GOASE AIR FILTERS
Goase Air Filters are designed for very high Filtration and dust loading condition. These filter plays an important role of pre filter. These Filters are washable type These Filters are very light in weight. The main application of these filters are in general air conditioning and ventilation system. In Industrial offices, Factories, building centralis air conditioning, cinema theaters. Centralise air conditioning in Five star hotels, etc. The eff. of these Filters is 85% to 90% EU -3 type 20 micron filter.

Sr. No.	Size	Air Flow Rate(C F M)	Cmh.
1	24″X24″X2″	1700	2840
2	25″X20″X2″	1450	2420
3	24″X20″X2″	1400	2340
4	20″X20″X2″	1100	1840
5	20″X16″X2″	1100	1840
6	20″X16″X2″	1000	1670

SIGMA PASS BOX
These units are mostly used in pharmaceutical Industry. There are two types of pass boxes
A) Static pass box
These pass box are installed in between two sterile rooms.
B) Dynamic pass box
These pass box are Installed in between sterile to non sterile room, These Dynamic pass box is a fan Filter unit with prefilters and HEPA filters housed along with a fan and motor. The manufacture of construction of both pass boxes are SS/CRCA powder coated.

SIGMA CLEAN AIR MODULE
The clean air module is a fan filter unit with prefilters and Hepa filters housed along with a fan and motor in a SS/CRCA casing. These units are used either for pressurization or for improving the cleanliness level of the room.

SIGMA FIRE RETARDANT FILTER OR DUAL STAGE FIRE RETARDANT FILTER.

Introduction : Fire retardant filter are designed exclusively For high degree temperature unit i.e.. Hot air units, Hot zone, F.B.D. Units. For pharmaceutical, Research Laboratories, Atomic energy, Ordanance and defence., chemical Industries etc. The temp. Range of Filter is 100°c to 600°cc

Construction: The Filter element is constructed from non woven Fibre glass media.Supported and stitched both side by aluminium, SS. Wire-mesh, and pleated to form deep fold. This exclusive design ensures a large filtrating area in ratio to the face area. This filters having high dust rentention capacity and high flow rate. The Filter units are made in standard size and are interchangeable. The M.O.C. of casing is in ALu, s.s. The bonding material is fire retardant type for bonding the folds are separated by alu / s.s. Separators and also provides Alu / s.s. Protective guards. Fire redartenttype gasket is used for to avoided to leakages.

Operating condition: This Filter can with stand very high degree operating temp. Upto 600° c This filters are washable and
cleanable type.

SIGMA DRY FABRIC PANEL TYPE AIR FILTERS

Applications : Designed specifically for High Efficiency requirements in the nuclear, Pharmaceutical, biological, petrochemical, fertilizer and synthetic fibre industries, computer installation and hospitals.

Constructions: The filter elements is constructed from special pressed non woven synthetic filter fabric stitched on a G. I Wire meon support / Rods and crimped to form deep folds. This exclusive design ensures a large filtration area in ratio to the face area of the filter unit. Result -low differential pressure, high dust rentention capacity and high flow rate. The filter units are made in standard sizes and are interchangeable. The filter casing is
provided with a flanged section for easy fitment on to the filter frame. A felt / neoprene sponge rubber sealing is fixed on to the filter flange. The filter folds are separated by Aluminium spacers to ensure uniform distribution of air flow through the filter media – longer service life. The filter element is sealed in to a mild steel casing duly spray painted and stove enameled to counter rust formation. Aluminium filter casings are also available.

Operating Conditions : The Filter unit can be used under conditions of humidity up to and including 100% RH. Exclusive design ensures large filtration area, maximum filtration efficiency and nominal pressure drop vis-a-vis airflow rate. It is recommended that the filter element is replaced every 12-18 months. Dry Fabric Panel Filters are essential in all industrial installations where a high degree of filtration efficiency and nominal pressure drop commensurate with rated flow is required.

Installation : Filter units may be mounted in multiple banks to cater to large volumes of air flow. The units can be mounted on angle iron frames. Specially designed outlet ducts can be supplied for attaching to the frame work of the filter units for fitment with the existing duct. The filter units are made in standard sizes and are interchangeable.

Application : Designed specifically for High Efficiency requirements in air condition and ventilation, Pharmaceutical, fertilizer and synthetic fibre industries, biological, compressors, electronic industries, research labs, nuclear, petrochemical, film processing industries, Paint finishing plants, and hospitals. And use as pre filter to HEPA filters.

SIGMA HIGH DENSITY POLYETHYLENE PANEL TYPE AIR FILTERS

Application: This Unit is designed for high efficiency filtration with high chemical Icorrosion resistance. Ideally suited for corrosive atmosphere applications, chemical plants, naval frigates and ventilation plants operating under extensive humidity conditions.

Construction: From several layers of High Density Polyethylene Mesh stitched together and crimped to form deep folds. This exclusive design ensures maximum filtration are in ratio to the face area.

Result: low differential pressure, high dust retention capacity and high flow rate. The filter folds are separated by aluminium spacers to ensure uniform distribution of Air flow through the filter media-
longer service life. The filter element is sealed into a spray painted and stove enamelled casing. The filter casing is provided with a flanged section for easy fitment on to the filter frame. A felt / neoprene sponge rubber sealing is fixed onto the filter flange.

Operating Conditions: Can be used in conditions of humidity up to and including 100% RH. It is recommended that the filter element is replaced every 12-18 months.

Installation: Filter units may be mounted in multiple banks to cater to large volumes of air flow. The units can be mounted on angle iron frames. Specially designed outlet ducts can be supplied for attaching to the framework of the filter units for fitment with the existing duct. The filter units are made in standard sizes and are interchangeable.

SIGMA ABSOLUTE FILTERS

Introduction :
Sigma Filters introduce a range of Absolute Air Filters designed to meet critical filtration requirements, with an efficiency rating of 99.97% down to particle size of 0.3 microns.
Sigma Absolute Air Filters are specifically designed to suit the critical requirements of nuclear, chemical, bacteriological research units, pharmaceutical industries, hospital operation theatres computer installations, industrial clean Air Rooms, photographic processing laboratories, space research units and laminar flow cabinets.

Construction : The filter medium is constructed from water repellant, fire retardent all glass – micro fibre paper, pleated over corrugated board / plastic / aluminum separators. The filter I element is bonded to a filter frame of aluminum / cadmium plated mild steel / fire retardent plywood with special plastic based adhesive. A neoprene sponge rubber seal is fitted on either a I each face of the filter frame of aluminum / cadmium plated mild steel / fire retardent plywood with special plastic based adhesive. A neoprene sponge rubber seal is fitted on either / each face of the filter frame.

Operating Conditions: The filter unit is suitable for maximum operating temperatures of 120°c-600°c and conditions of humidity upon and including 100″ RH. The life of the filter can vary from six months to two years. Usage of Sigma pre- filters enhances the service life, of the Absolute filter.

Installation: Sigma Absolute Filter units can be mounted in multiple bank to cater to large volumes of air flow. The unit can be mounted on angle iron frames. Specially designed ducts can be supplied for attaching of the frame work of the filter units for figment with existing duct work. The filter units are ,made in standard sizes and are interchangeable.

Performance: The Sigma Absolute Filter unit is suitable for an operating efficiency of 99.97% down to particle size of 0.3 microns, with 0.3% penetration – on Sodium Flame Test procedure / D. O.P. test method – the most accurate and demanding of any filter test used today. It incorporates a Diocty Philalte Thermal Smoke generator and a forward light scatter Penetrometer. The test determines the filter efficiency by measuring the percent penetration of 0.3 micron smoke particles.

Wide Dynamic Range: Sigma Absolute Filters are available in a number of grade series to meet specific temperature and humidity requirements. Sigma HEPA filter with stand, temp, up to 600°c