Garg Scientific Glass Industries

Goregaon, Mumbai, Maharashtra

Borosilicate glass pipeline components find universal application throughout the worlds chemical, pharmaceutical, food and drink and allied industries where the advantage of using glass as a basis for the construction of complete process systems have long been recognized:

• With almost universal resistance to corrosion, a long service life is guaranteed and maintenance is kept to a minimum.
• Their transparency permits visual monitoring of the process at all times.
• Being inert, the risk of contamination is negligible.
• Smooth surfaces allow easy cleaning and sterilization and prevent the build-up of solid on the inner walls.

The complete range of pipeline components is described on the following pages. Components with a standard flat buttress ends are available from DN 25 to DN450.
For standard flat buttress end connections from DN25 to DN300, it is possible to achieve a 3 deflection in the joint by using a flexible gasket. Details of these and all other couplings and gasket can be found in section Couplings.
The pipeline components described in this section of the catalogue comply, which means that 90 bends, tee pieces and equal crosses are interchangeable.
DN refers to the nominal bore. Unless otherwise stated all dimensions are given in mm.
For permissible operating conditions, please see section Technical Information.

Borosilicate glass pipeline components find universal application throughout the worlds chemical, pharmaceutical, food and drink and allied industries where the advantage of using glass as a basis for the construction of complete process systems have long been recognized:

• With almost universal resistance to corrosion, a long service life is guaranteed and maintenance is kept to a minimum.
• Their transparency permits visual monitoring of the process at all times.
• Being inert, the risk of contamination is negligible.
• Smooth surfaces allow easy cleaning and sterilization and prevent the build-up of solid on the inner walls.

The complete range of pipeline components is described on the following pages. Components with a standard flat buttress ends are available from DN 25 to DN450.
For standard flat buttress end connections from DN25 to DN300, it is possible to achieve a 3 deflection in the joint by using a flexible gasket. Details of these and all other couplings and gasket can be found in section Couplings.
The pipeline components described in this section of the catalogue comply, which means that 90 bends, tee pieces and equal crosses are interchangeable.
DN refers to the nominal bore. Unless otherwise stated all dimensions are given in mm.
For permissible operating conditions, please see section Technical Information.

wo types of inserts are used depending upon the type of buttress ends and the backing flange.

1. Type A : For tapered buttress ends, asbestos gasket arcs are used for fitting between the tapered end and the flange.

2. Type B : For collared buttress ends, Cast iron split rings with thin asbestos rope are used & as backing rings between collar and the flange.

These flanges are used to couple a glass ends to glass ends or to a below.Backing flanges are made up of cast iron and are used with inserts.They can normally be supplied in various grades of stainless steel on special order.

in the majority of glass plant installations, vessels find universal application as stirring vessels, reboilers, receivers and separators as well as for storage, feed or measuring. This section of the catalogue describes a wide range of both glass and non-glass vessels together with the items which are normally used in conjunction with them such as vessel covers and stirrers.

standard glass vessels are available in two basic forms: spherical (available up to 200 litres in capacity) and cylindrical (available up to 200 litres in capacity). Large spherical vessels are not available but cylindrical vessels with higher capacity than 200 litres can be supplied to special orders.

all glass vessels have standard flat buttress end connections. Further details of these are provided in sectiontechnical information.

when spherical vessels are used as stirring vessels or reboilers, the top branch in generally used for the column or stirrer. The side branches on standard vessels are generally dn 25, dn 40 or dn 100; dn 25 and dn 40 being at 10 to the vertical (45 on type vsu) and dn 100 being at 45. The only exception to this are type vsd spherical vessels which have dn 50, dn 80 and dn 150 side branches at 90 to the vertical and are used mainly in boiler circulatory systems. The smaller branches are normally used for such components as thermometer pockets, resistance thermometer and feed pipes. The dn 100 branches are normally used for charging solids or for the connection of vapour pipes when the top branch is used for a stirrer.

in application where temperature control is necessary, heating bath and mantles are available and detailed in this section. In addition, some glass vessels are available with jacket for close temperature control. If spherical or cylindrical vessels are used in conjunction with a heating mantle or bath, a longer bottom outlet isrequired and should be specified when ordering. The vsl spherical vessels are specifically designed for this purpose.

the majority of vessels have dn 40 bottom outlet. For application where it is necessary to avoid the build-up of solids in this outlet, the vessel can be fitted with a bottom outlet valve.(see section valves & filters).this should be specified when ordering. The type rfc valve is an ideal alternative for vessels, which do not have a sealed-in valve seat.

by combining vessels with stirrers and stirrer drives, an extremely wide range of agitated stirring equipment options is possible. This fact is enhanced by the inclusion ofptfe stirrers as well as their glass counterparts, thus allowing further options to be considered in the process design. Vessel/stirrer compatibility tables are detailed in individual stirrer description.

both spherical & cylindrical vessels can be supplied with graduations to special order. Standard graduated cylindrical vessels are shown in this section.

for standard flat buttress end connections from dn25 to dn150, it is possible to achieve a 3deflection in the joint by using a flexible gasket. Details of these and all other couplings and gasket can be found in sectioncouplings.

unless otherwise stated, all dimensions are given in mm. All vessel capacities are given in liters.

for permissible operating conditions, unless otherwise stated in the individual description, please see sectiontechnical information.

In the majority of glass plant installations, vessels find universal application as Stirring vessels, reboilers, receivers and separators as well as for storage, feed or measuring. This section of the catalogue describes a wide range of both glass and non-glass vessels together with the items which are normally used in conjunction with them such as vessel covers and stirrers.

Standard glass vessels are available in two basic forms: spherical (available up to 200 litres in capacity) and cylindrical (available up to 200 litres in capacity). Large spherical vessels are not available but cylindrical vessels with higher capacity than 200 litres can be supplied to special orders.

All glass vessels have standard flat buttress end connections. Further details of these are provided in sectionTechnical Information.

When spherical vessels are used as Stirring vessels or reboilers, the top branch in generally used for the column or stirrer. The side branches on standard vessels are generally DN 25, DN 40 or DN 100; DN 25 and DN 40 being at 10 to the vertical (45 on type VSU) and DN 100 being at 45. The only exception to this are type VSD spherical vessels which have DN 50, DN 80 and DN 150 side branches at 90 to the vertical and are used mainly in boiler circulatory systems. The smaller branches are normally used for such components as thermometer pockets, resistance thermometer and feed pipes. The DN 100 branches are normally used for charging solids or for the connection of vapour pipes when the top branch is used for a stirrer.

In application where temperature control is necessary, heating bath and mantles are available and detailed in this section. In addition, some glass vessels are available with jacket for close temperature control. If spherical or cylindrical vessels are used in conjunction with a heating mantle or bath, a longer bottom outlet isrequired and should be specified when ordering. The VSL spherical vessels are specifically designed for this purpose.

The majority of vessels have DN 40 bottom outlet. For application where it is necessary to avoid the build-up of solids in this outlet, the vessel can be fitted with a bottom outlet valve.(See section Valves & Filters).This should be specified when ordering. The type RFC valve is an ideal alternative for vessels, which do not have a sealed-in valve seat.

By combining vessels with stirrers and stirrer drives, an extremely wide range of agitated Stirring equipment options is possible. This fact is enhanced by the inclusion ofPTFE Stirrers as well as their glass counterparts, thus allowing further options to be considered in the process design. Vessel/stirrer compatibility tables are detailed in individual stirrer description.

Both spherical & cylindrical vessels can be supplied with graduations to special order. Standard graduated cylindrical vessels are shown in this section.

For standard flat buttress end connections from DN25 to DN150, it is possible to achieve a 3deflection in the joint by using a flexible gasket. Details of these and all other couplings and gasket can be found in sectionCouplings.

Unless otherwise stated, all dimensions are given in mm. All vessel capacities are given in liters.

For permissible operating conditions, unless otherwise stated in the individual description, please see sectionTechnical Information.

glass components are connected with one another by flanged joints. All the glass nozzles have special ends known as buttress ends to fix up a backing flange behind the end and connect the two opposite flanges by bolting with each other.

coring usually gives tapered buttress ends (garg type) which are backed by a metal flange with matching tapered bore and with a soft asbestos insert in between to prevent excessive point stresses on the glass surface. These joints give excellent performance when the glass and metal tapers are perfectly matched with full concentricity and when the alignment is perfect. In case of sight imperfection, there is a chance of excessive stresses and breakage of glass neck. Secondly, because of the taper fit, the glass to flange joint is mechanically locked and it is difficult to change flanges.

we give another type of end which we call collared buttress end. This is similar to stub ends used in copper and stainless steel piping. The collar is backed by an asbestos rope, a metal split ring and a metal backing flange. This type of joint is very strong and has flexibility in case of slight misalignment. The overall dimensions of this type of end are kept same as those of tapered end. Hence it is easy top interchange these types of ends; and even fixing tapered end with collared end is possible.

the following table gives dimensions of both the types of buttress ends

Glass components are connected with one another by flanged joints. All the glass nozzles have special ends known as buttress ends to fix up a backing flange behind the end and connect the two opposite flanges by bolting with each other.

Coring usually gives tapered buttress ends (GARG type) which are backed by a metal flange with matching tapered bore and with a soft asbestos insert in between to prevent excessive point stresses on the glass surface. These joints give excellent performance when the glass and metal tapers are perfectly matched with full concentricity and when the alignment is perfect. In case of sight imperfection, there is a chance of excessive stresses and breakage of glass neck. Secondly, because of the taper fit, the glass to flange joint is mechanically locked and it is difficult to change flanges.

We give another type of end which we call collared buttress end. This is similar to stub ends used in copper and stainless steel piping. The collar is backed by an asbestos rope, a metal split ring and a metal backing flange. This type of joint is very strong and has flexibility in case of slight misalignment. The overall dimensions of this type of end are kept same as those of tapered end. Hence it is easy top interchange these types of ends; and even fixing tapered end with collared end is possible.

The following table gives dimensions of both the types of buttress ends

The glass components are supported on tubular structures. They are made of G.I. or powder coated still pipes. Typical fitting are used to make a strong and rigid structure to support the glass assemblies. These fitting are made of cast iron and held in position by tightening all screws.

Normally any process industry requires measurement, monitoring and control of various process parameters such as temperatures, pressure, flow etc.

DIGITAL TEMPERATURE INDICATORS

These are resistance temperature detectors with PT100 sensor. The display is digital LED display with 31/2 digit output and resolution of 0.1 o C. There are available with total range 0-999.9 o C. Flame proof and none two point controllers are also available. One point and two point controllers are also available for annunciation or for on/off controls.

The glass components are supported on tubular structures. They are made of G.I. or powder coated still pipes. Typical fitting are used to make a strong and rigid structure to support the glass assemblies. These fitting are made of cast iron and held in position by tightening all screws.

The general dimensions of the structures and fittings are as follows : -

Manufacture of glass pumps is comparatively recent development. The pumps involve moving parts. Hence, more precision is required in the manufacture to minimize operational and maintenance problems. Out of development activities and experience of several years, we have developed the following types of pumps.

valves and filters form an essential part of any process plant or system in a wide range of applications from relatively simple on/off functions to flow control, pressure relief and filtering.

all wetted parts of valves and fitters described in this section of the catalogue are constructed from borosilicate glass, ptfe, ceramic, fep, pfa or tantalum thus ensuring maximum resistance to corrosion. In addition, as valves have a glass body, visual monitoring of the valve operation is possible at all times.

for standard flat buttress end connections from dn 25 to dn 150, it is possible to achieve a 3deflection in the joint by using a flexible gasket. Details of these and all other couplings and gasket can be found in section -couplings.

the valves described in this section of the catalogue comply, which means that 90bends, tee pieces and equal crosses(see section pipeline components)are interchangeable with certain type such as angle valve.

dn refers to the nominal bore. Unless otherwise stated, all dimensions are given in mm.

for permissible operating conditions, unless otherwise stated in the individual description, please see section technical information.generally, the maximum operating temperature for valves is 200c but temperature above ambient, particularly in the range from 120c to 200c, impose restrictions on the permissible operating pressure.

a wide variety of valves are available for a range of purposes. All have borosilicate glass bodies. As a result operation of the valve can be checked visually. In practically every case glass is combined with ptfe, which ensures that the valves have maximum resistance to corrosion.

all the valves are suitable for use under full vacuum. Pressure ratings at ambient temperature are indicated in the tables applicable to each type of valve.

the maximum operating temperature is 200 c but temperatures above ambient particularly in the range 120 c to 200 c, impose restrictions on the permissible operating pressure. In case of doubt it is advisable to consult us.

these valves comply with iso 3587 where applicable. Thus maximum interchangeability of compatible components is assured. For example, angle valves can be interchanged with 90 ells, equal tee pieces and equal crosses.

dn refers to nominal bore. Unless otherwise stated dimensions are in millimeters. Figures given for maximum recommended working pressure represent pressure above atmospheric.

Valves and filters form an essential part of any process plant or system in a wide range of applications from relatively simple on/off functions to flow control, pressure relief and filtering.

All wetted parts of valves and fitters described in this section of the catalogue are constructed from borosilicate glass, PTFE, Ceramic, FEP, PFA or tantalum thus ensuring maximum resistance to corrosion. In addition, as valves have a glass body, visual monitoring of the valve operation is possible at all times.

For standard flat Buttress end connections from DN 25 to DN 150, it is possible to achieve a 3deflection in the joint by using a flexible gasket. Details of these and all other couplings and gasket can be found in section -Couplings.

The valves described in this section of the catalogue comply, which means that 90bends, tee pieces and equal crosses(see section Pipeline Components)are interchangeable with certain type such as angle valve.

These Clamps are moulded in Polypropylene making it completely corrosion-proof. The spring loaded jack in the middle provides a vice like grip to the Burette and prevents it from slipping Two tapered wedges are provided to ensure firm grip on rods having dia or 3/8 .

These four way connectors prove to be an excellent option for achieving leakproof joints in tubing connections.

These L shaped connectors also add to the range of different connectors committed to provide excellent leakproof tube arrangements.

Available in two different sizes, these Cages provide excellent shelter for different animal species in the laboratory. The metallic top provides proper ventilation and has provisions for feeding the species.

Adding in line with the existing range, these Animal Cages are provided with a Stainless Steel grill at the bottom of the cage to provide a dean surface for the species to move on.

GSGI Kipps Apparatus made of Polyethylene has three main portions. The top portion is fitted with a thistle funnel and a bulb structure through which dilute acid can be poured which reacts with a metal sulphide in the base of the Apparatus. l-lS gas then evolved collects in the middle dome from where it can be released through a leakproof stopcock fitted with a self lubricating PTFE plug The base is provided with a residual outlet fitted with a cap for easy cleaning.

These long stem funnels have smooth waIls, 600 cone angle and external ribs to prevent air lock. Moulded in Polypropylene, these clear funnels can also be steam autoclaved.

Moulded in Polypropylene, these two piece funnels are lightweight, easy to clean & autoclavabic. The top portion can be snap fitted with the lower one forming a vaccum seal which does not require greasing The base of the top portion has a perforated filter plate.

Designed specifically for analytical chemistry, the body of the funnels is 6O. Moulded in P1, these funnels are provided with internal & external ribs to prevent air blockage.

MCT Boxes are moulded in polycarbonate and are therefore strong as veil as autoclavable. One size can hold 64 MCTs of 1.5 ml. & the other can hold 100 MCTs of 0.5 ml. These boxes are designed to work at temperatures ranging from -190C to +121C. The transparent cover provides a good view of the contents inside & is numbered for better inventory control.

GSGI Centrifuge tubes with conical bottom are available in two sizes i.e. 15 ml. & 50 ml. Moulded in Polypropylene, these tubes are clear, strong & safe. These autoclavable tubes are provided with printed graduations on the outer surface. The built in seal ring in the cap makes these tubes absolutely leakproof. These robes can withstand forces upto 7500xG & l2000xG for 15 ml. & 50 ml. tubes respectively These tubes are available sterillzed as well as non-sterilized.

GSGI Centrifuge Tubes with round bottom are moulded in

Polypropylene & Polycarhonate These tubes have excellent clarity and are

strong enough to be used upto 50, 000xG. These tubes can be autoclaved,

however, repeated autoclaving in PC tubes reduces their mechanical

These Crystal Model Sets contain different coloured jacks (Red, Bladk& White) & connectors Qong & short) in a prescribed number to be joined together in an illustrated way to form structures llke Diamond, Graphite & Sodium Chloride.

Oak Ridge Centrifuge Tubes, made of Polypropylene, have excellent contact clarity and can he used upto 50, 000xG. The screw cap is fitted with silicon 0-Ring maldngit totally leakproof. These tubes should not he used below 4UC.

Slide Mailers present the best option to carry prepared slides from one place to another. Moulded in Polypropylene, these Slide Mailers are available in three sizes i.e. 1, 2 & 5 slides.

These containers can be used for collecting a wide range of samples of sputum, urine etc. Moulded in polypropylene these container have excellent contact clarity and the cap has built-in seal that makes it completely leakproof.

These Slide Boxes are durable, compact & provide utmost protection to 1 x3 slides. Heavy walls will not warp, splinter or crack. Boxes are unaffected by humidity and are thoroughly insect proof. Base of the

These containers, as the name suggests, are used for collecting stool samples. The cap is provided with a spoon like structure that proves helpful in lifting samples.

These polypropylene tubes provide excellent aption for MA, coagulation & bacteriology etc. The cap in screwed on to the tube & hence this tube can be filled up to the brim.

This vial has an 0-ring in the cap that makes it absolutely leak proof.

Like other storage vials this vial can also be used for storage purposes at

temperatures as low as -190C.

Another addition to the range of storage vials is this vial which has internal thread in it. The cap fitted with an 0-ring screws in to the vial

and makes it a leakproof storage vial.

These unbreakable vials, moulded in Polyethylene, are fitted with leakproof screw caps. These vials can be used with standard counting equipment for liquid scintillation system and are excellent for low activity count.

Cryo vials are normally used for storage of Biological material, human & animal cells at temperature as low as -190C. These sterilized tubes are provided with white, prominent graduations and a long marking area for sample identification. The cap of these vials is provided with a seal ring inside to make it completely leak proof. The longitudinal grooves in the base give a non-twisting feature to these vials when placed in a cryo rack.

These Coders available in different colours can easily fit into the cap of cryo vials for colour identification of different samples.

Polylab Cryo Boxes are moulded in Polycarbonate making it extra strong and autoclavable. These can accommodate Cryo Vials of up to 4.5 nil, capacity and are designed to be used at temperatures ranging from -190C to
+121C. The transparent cover of the box gives a good view of the contents inside and is numbered for better inventory control.

These unique boxes are moulded in Polypropylene and are therefore autoclavable. The Box itself is dear providing an excellent view of the tips inside while a table like structure is provided inside to hold the tips. The tip holding spaces are uniformly placed to facilitate the use of multi channel pipettes. The cover is joined to the base through ball catcher hinges and provides excellent protection to the tips.

This stand, as the name suggests, is used for keeping nestler cylinders. Made of polypropylene, this stand is available in two sizes, one for SOml nestler cylinder & other for lOOmL nestler cylinder.

GSGI Test Tube Baskets are made of Polypropylene. These autoclavable, unbreakable and noncorrosive Baskets are ideal for rinsing & draining glassware. These are also useful for storage of test tubes or culture tubes during sterilization or incubation.

As the name suggests, this basket with wide net like structure on all sides prove really useful for draining different laboratory apparatus after washing them. Made of polypropylene, this basket can be repeatediy auto claved.

Moulded in Polycarbonate, these autoclavable racks are made for holding 1.5 ml. micro centrifuge tubes. These racks have a unique stacking feature which prevents movement in any direction. The holes are numbered & lettered for easy identification.

Moulded in Polypropylene, this autoclavable Reagent Reservoir is helpful for multi-channel pipettes to be used into microtiter plates.

This Universal Reagent Reservoir is a graduated single reagent reservoir with maximum volume of 50m1, reservoir with 8 separate numbered 5ml. reagent channels & a reservoir with 12 separate numbered 5ml. reagent channels. Made of polypropylene these reagent reservoirs are repeatedly autoclavable and can he used with all multi-channel pipettes.

This ice Bucket is made of a durable rigid material bearing excellent insulating properties. Contents can be stored in it using dry ice, liquid nitrogen or acetone etc.

These handy jugs, moulded in Polypropylene, are clear, autoclavable and have good chemical resistance. These Jugs are provided with a handle for easy & convenient lifting and have raised graduations for easy reading.