Friday 16 December 2016

A Burst of Air From Our Super Air Nozzles Keeps Vacuum System Pipes Clean

An overseas textile company had many automated spinning machines to manufacture yarn from raw cotton and polyester fibers. They used a vacuum collection system to remove any floating fibers from within their spinning machines for safety reasons.  In this facility, they had three rows of ten spinning machines.  Above each row, a collection duct, ranging for 8” to 30” in diameter, would collect the fibers and transport them to a baghouse.  The difference in diameters was to keep the vacuum pressure the same in each spinning machine.  The machine that was the farthest from the baghouse had the smallest diameter pipe, and the machine that was closest to the vacuum system had the largest.  They needed to keep an optimum vacuum pressure inside each machine because too much would affect the production of the yarn and too little would allow the fibers to migrate into the production area.  The concern with fibers migrating in the production area was a fire hazard, a big safety issue.  In order to have each row of machines performing effectively, they needed to keep the static pressure as low as possible.



The issue that they had was the discarded fibers would gather and collect in the ductwork. Each machine had a 4” duct that would draw the fiber from the spinning machine into the bottom of the collection duct overhead.  The velocity profile inside the main line was being disrupted by each feed duct, as it allowed a “dead” spot for the fibers to gather.  As fibers would entangle with each other and become larger, the static pressure would increase.  This would cause the vacuum pressures to change inside the spinning machines, affecting production.  They would have to shut the row down, open the ductwork, and clean the entire piping system.  This was time consuming and costly as it stopped production.


The customer tried a homemade nozzle made of a copper tube. He flattened one end and placed it in the bottom of the ductwork just upstream of the problem area.  He triggered it intermittently, and after a while he noticed that he still had the fibers collecting in the pipes, but in different areas.  In knowing how the velocity profile is very sensitive in dust collection systems, any additional obstructions could cause the problem to change to another location within the system.  He contacted EXAIR to see if we could help him.
 Mr Johnball put on his engineering hat to help solve this issue. He suggested Exair's model 1104 Super Air Nozzles because it had enough force to reach the other side within the range of diameters.  The EXAIR Super Air Nozzles are very powerful and efficient nozzles.  It is designed to entrain the ambient air.  This gives it a powerful force without using a lot of compressed air.  My suggestion was to place them along the top of the collection pipe as Exair needed to keep the profile smooth along the bottom section of the pipe.  As a recommendation, He suggested for them to use an angled extraction port (not made by EXAIR).


It screws to the outside of the ductwork, and it has a 2” opening with a 45 degree angle (reference photo above).  They could aim the Super Air Nozzles at the “dead” spots to lift the fibers off the bottom; allowing the system to pull them toward the baghouse.  Without having to redo their entire collection system, they were able to cut an opening in the top of the duct and mount the Super Air Nozzles.  As an added benefit, the nozzles were not in the air stream; so, there was no additional static pressure in the system.  The customer was able to design a solenoid triggering system to have only one Super Air Nozzle to operate at one time.  It would start from the farthest point, and trigger one at a time toward the bag house.  With a short burst of air, it would keep the fibers in the air stream without affecting the operations of the spinning machines.  This customer was very happy as they were able to keep their operation running without a buildup of static pressure in the vacuum system and without allowing fibers to escape into the work area.

Vivek Engineers#22, 1st Floor, 1st Cross, Adj. to IIMB Compound, Bilekahalli Indl. Area, 
Bannerghatta Road, Bangalore - 560 076.
Ph : 080 -  2648 1309, 3297 0358, 4170 1145
TeleFax : 080- 2648 1309.
E- mail : [email protected]


Monday 28 November 2016

Ultrasonic Leak Detector

The Ultrasonic Leak Detector (ULD) is a handheld, high quality instrument that can locate costly
leaks in a compressed air system. A person using the ULD need only aim it in the direction of a
suspected leak. When a leak is present, an audible tone can be heard with the use of the
headphones, and the LED display will light. Testing the various unions, pipes, valves and
fittings of a complete installation can be done quickly and effectively at distances up to 20'
(6.1m) away!

Plants that aren’t maintained can easily waste up to 30% of the compressor output through
leaks that go undetected. Compressing air is an expensive operation. Saving the wasted
compressed air reduces overall operating costs. In large plants, the cost of a small air leak
may be insignifi cant, but many small leaks when located and repaired can amount to huge
energy savings.
Vivek Engineers#22, 1st Floor, 1st Cross, Adj. to IIMB Compound, Bilekahalli Indl. Area, 
Bannerghatta Road, Bangalore - 560 076.
Ph : 080 -  2648 1309
E- mail : [email protected]

Wednesday 23 November 2016

Adjustable Air Amplifier

Highly effective air mover that easily adjusts to your application!

EXAIR Adjustable Air Amplifier is used for a variety of applications - either aluminum or stainless steel for high temperature (400°F/204°C) and corrosive environments. Adjustable Air Amplifier is easy to mount and have good amplification ratios. Adjustable Air Amplifier is quiet, efficient and can amplify flows up to 20 times their input air consumption rate. The infinitely adjustable air gap regulates the consumption & outlet flow from a breeze to a blast.



Force and flow for the Adjustable Air Amplifier is changed by turning the exhaust end (with the knurled ring loose) to open or close the continuous air gap. When desired performance is obtained, the knurled ring can be tightened to lock the flow at that setting. In most cases, a .002" to .004" (0.05mm to 0.10mm) air gap is ideal.
Vivek Engineers#22, 1st Floor, 1st Cross, Adj. to IIMB Compound, Bilekahalli Indl. Area, 
Bannerghatta Road, Bangalore - 560 076.
Ph : 080 -  2648 1309, 3297 0358, 4170 1145
TeleFax : 080- 2648 1309.
E- mail : p.lochan@ vivekengineers.net[email protected] , [email protected]

Tuesday 22 November 2016

Airpot Precision Dashpots

When there is the necessity of reduceing or eliminating the harmful or excessive motion, Airpot dashpots offer highly accurate motion control, including vibration damping, spring damping, solenoid damping, and control of free fall velocity. Airpot’s precision glass cylinder and graphite piston technology produces instrument quality pneumatic devices uniquely designed and optimized for accurate, repeatable force control. As a result, a family of damping devices that operate with superior accuracy and little or no friction. Airpot “Accurate Force ” precision dashpots use ambient air to precisely and accurately control force, velocity and impact and are ideal for designing or improving a product line or building specialized equipment to do research, high level testing or precision assembly.  Airpot Air Dashpots are available in 6 bore diameters ranging from .22 inches to 1.75 inches with either push, pull, or two-way damping and strokes from 0.5 inches to 3 inches.

Vivek Engineers#22, 1st Floor, 1st Cross, Adj. to IIMB Compound, Bilekahalli Indl. Area, 
Bannerghatta Road, Bangalore - 560 076.
Ph : 080 -  2648 1309, 3297 0358, 4170 1145
TeleFax : 080- 2648 1309.
E- mail : [email protected][email protected] , [email protected]

Friday 18 November 2016

Ion Air Gun


Super Air Amplifier Cools Iron Castings


The Problem: A foundry that produces iron castings for the automotive industry had a problem with certain hot parts that slowed their production. After pouring, the castings gradually cool by traveling along a 200 foot long conveyor. At the end, a shake-out conveyor breaks the sand mold so the casting can be removed. Normally, the operator could pick up the part with special gloves and grind the rough edges. However, some castings such as crankshafts, diff erential housings, and shift parts retained too much heat, making them too hot to handle. The operator had to wait up to ten minutes for them to cool. The Solution: They installed (5) Model 120022 2" (51mm) Super Air Amplifiers over the shake-out conveyor.The high output airfl ow from each Super Air Amplifi er rapidly cooled the parts without shocking them (no cracks or imperfections from cooling too rapidly). When the part reached the end of the conveyor, the operator could proceed immediately. h e backlog was completely eliminated.


Editor's Comment: This manufacturer had almost given up on finding a cooling solution since the fans and blowers that were tried in the past showed little improvement. Our Super Air Amplifi er dramatically reduced the cooling time. As a result, they installed them on their second line. The low cost Super Air Amplifi ers are compact, portable and have no moving parts to wear out (which is ideal in a dusty foundry). And, the patented design assures the highest output air volumes possible with the lowest air consumption.


Vivek Engineers#22, 1st Floor, 1st Cross, Adj. to IIMB Compound, Bilekahalli Indl. Area, 
Bannerghatta Road, Bangalore - 560 076.
Ph : 080 -  2648 1309, 3297 0358, 4170 1145
TeleFax : 080- 2648 1309.
E- mail :  p.lochan@ vivekengineers.net , [email protected] , [email protected]

Tuesday 15 November 2016

The model 121021 High Temperature Air Amplifier

The  model 121021 High Temperature Air Amplifier was developed for moving hot air and to be able withstand high temperature ambient conditions. This special design is rated for environments up to 700°F and its surface is protected from heat stress by a mil-spec coating process developed for the aircraft industry. It uses just 8.1 SCFM of 80 PSIG compressed air, has an amplification ration of 18:1, and a sound level of only 72 dBA. This highly efficient and quiet air amplifier was the right choice, and the customer has reported back that they ‘have been working good’ in the application. They are also used to circulate hot air in ovens or keep even temperatures on large rotational molds. They also solve heat/cooling problems in glass manufacturing, primary metals, heat treating and power generation. They are the right choice for rugged, high temperature processes.

EXAIR makes other specialty Air Amplifiers, including models made for specific customer applications.  These include designs with flange mounting for exhausting flue gases from a  furnace and a design with a PTFE plug to help pull sticky material through a process while preventing the material from depositing on the Air Amplifier.

Vivek Engineers#22, 1st Floor, 1st Cross, Adj. to IIMB Compound, Bilekahalli Indl. Area, 
Bannerghatta Road, Bangalore - 560 076.
Ph : 080 -  2648 1309, 3297 0358, 4170 1145
TeleFax : 080- 2648 1309.
E- mail : [email protected][email protected] , [email protected]

Monday 14 November 2016

Chip Vac Vacuums chips directly into a drum - with no moving parts!

EXAIR’s Chip Vac is used to clean chips from fixtures, floors & work surfaces of machining centres, lathes, saws, mills & other industrial equipment. The Chip Vac is suitable for either dry or wet chips & delivers them directly to an ordinary 55 gallon open-top (45 imperial gallons/ 205 litres) drum. Chip Vac has a powerful suction which is ideal for fast & efficient cleaning. For small jobs EXAIR has a Mini Chip Vac System that delivers the same cleaning power & comes with a 5 gallon drum.


EXAIR’s Chip Vac vacuums metal, wood or plastic chips into a 55 gallon drum by creating a powerful direct flow action. Chip Vac is operated by compressed air & specifically designed for vacuuming chips. A 0.1 micron filter bag traps dusty materials such as absorbents & keep the surrounding air clean.
The Chip Vac ensures long life as it has no moving parts to wear out or break. The sound level is nearly halved & meets the OSHA requirements. The lever lock drum lid of the Chip Vac fits any open top 55 gallon drum. The Chip Vac can be removed & easily placed onto another drum in less than a minute to keep different materials separate for recycling.
Vivek Engineers#22, 1st Floor, 1st Cross, Adj. to IIMB Compound, Bilekahalli Indl. Area, 
Bannerghatta Road, Bangalore - 560 076.
Ph : 080 -  2648 1309, 3297 0358, 4170 1145
TeleFax : 080- 2648 1309.
E- mail :[email protected][email protected] , [email protected]

Friday 28 October 2016

Line Vac

Convey parts, materials, waste - with no moving parts!

EXAIR's compressed air operated Line Vac connects to standard hose or tube to create a powerful in-line conveyor. The compact design features large throat diameters for maximum throughput capacity. Eleven sizes in aluminum and ten sizes in stainless steel are suited to a wide variety of transfer applications. (A Model 6080 3/4" (19mm) Line Vac vacuums plastic as it is drilled.)

Line Vac conveyors are ideal for moving large volumes of material over long distances. A small amount of compressed air is injected through directed nozzles to produce a vacuum on one end and high output flows on the other, with instantaneous response. The material flow rate is easily controlled with a pressure regulator. An optional bracket permits easy mounting. No moving parts or electricity assures maintenance-free operation. (The Model 6083 1 1/2" (38mm) Line Vac conveys plastic granules to the gravity feed hopper on an extruder.)

Vivek Engineers#22, 1st Floor, 1st Cross, Adj. to IIMB Compound, Bilekahalli Indl. Area, 
Bannerghatta Road, Bangalore - 560 076.
Ph : 080 -  2648 1309, 3297 0358, 4170 1145
TeleFax : 080- 2648 1309.
E- mail : [email protected] ,  [email protected] , [email protected]
URL : www.vivekengineers.net

Thursday 27 October 2016

Super Air Amplifiers for Vent, exhaust, cool, dry, clean - with no moving parts!

Super Air Amplifiers are efficient & have the highest amplification ratios of all. Super Air amplifiers are compact, lightweight, portable & have no moving parts, assuring maintenance –free operation.

To maintain critical position of the component parts, the patented design of the amplifier uses a special shim. This results in the release of exact amount of compressed air at precise intervals toward the centre of the Super Air Amplifier. A high velocity outlet flow across the entire cross Super Air Amplifiers blow off transmissions after machiningsectional area is created by these jets of air. High Amplification ratio is created by pulling in additional free air through the unit. Wind shear is minimized by the balanced outlet airflow, to produce sound levels that are generally quieter than other air movers


A slotted air gap of .003” (0.08mm) is supplied with Super Air Amplifiers which is ideal for most applications. Shim can be replaced with a thicker .006”(0.15mm) or .009”(0.23mm) shim to get increased force & flow. Air amplifier is easy to mount and maintain reducing both compressed air consumption and noise levels. It takes energy from a small volume of compressed air to produce a high velocity, high volume, low pressure output air flow.

Vivek Engineers#22, 1st Floor, 1st Cross, Adj. to IIMB Compound, Bilekahalli Indl. Area, 
Bannerghatta Road, Bangalore - 560 076.
Ph : 080 -  2648 1309, 3297 0358, 4170 1145
TeleFax : 080- 2648 1309.
E- mail : [email protected][email protected] , [email protected]
URL : www.vivekengineers.net

Monday 24 October 2016

Ion Air Jet Keeps Sensor Lens Clean In Tablet Manufacturing Process

The tablet manufacturer on a bottling application where they were having static issues in a key area of their process. After the tablets are made, they travel to a vibratory feeder where they are counted with a photo-eye sensor before moving to the bottling line. The problem was the vibration of the feeder was causing the tablets to contact each other which created powder, dust and a static charge that aided the dust settling on to the counting sensor lenses.

Over the course of the production cycle, as the dust built up, they were experiencing incorrect quantity counts. Keeping the sensor lenses clean was inconsistent and time consuming for personnel. They were also dispensing too many and too few tablets into the bottles. As a means to try to contain and capture the dust, they placed plexiglass over the feeder bowls and installed a vacuum head a few inches after the sensor but this only helped a little as the operators would still have to manually clean the sensor. Looking for a more reliable, “hands-free” solution, they contacted EXAIR for assistance.



When dealing with small area cleaning applications, the Ion Air Jet is the ideal solution as it provides a high volume of focused, ionized airflow. By incorporating the Ion Air Jet into this particular process, the customer was able to effectively eliminate the static charge on the sensor, releasing the particulate and directing it towards the vacuum head to be carried away. Exair  recommended they operate the unit at low pressure as a way to control the outlet velocity so they wouldn’t disrupt the tablets process or overwhelm the existing vacuum flow.


Ion Air Jet is a low cost, reliable device for effective spot cleaning.
EXAIR offers a wide variety of Static Eliminators for various industrial applications. With help selecting the right product to fit your specific needs or to discuss a particular application, please don’t hesitate to contact one of our application engineers for assistance.
Vivek Engineers#22, 1st Floor, 1st Cross, Adj. to IIMB Compound, Bilekahalli Indl. Area, 
Bannerghatta Road, Bangalore - 560 076.
Ph : 080 -  2648 1309, 3297 0358, 4170 1145
TeleFax : 080- 2648 1309.
E- mail : p.lochan@vivekengineers.net
URL : www.vivekengineers.net

Wednesday 19 October 2016

Adding Thermostat Controls To An Existing Cabinet Cooler Application is Easy & Intelligent


The image above shows a NEMA 4 Cabinet Cooler after years of use in a food production facility.  The head electrician at the facility which uses this unit, contacted toEXAIR Application Engineer regarding the possibility of installing thermostat controls on a pre-installed Cabinet Cooler systems.  Apparently there are multiple EXAIR Cabinet Coolers in use around this facility, and as part of an improvement to compressed air efficiency, this facility wanted to explore automated regulation of the temperature in these enclosures (through thermostats). THis customer inquiry was about how to go about implementing such an upgrade.

It was refreshing for the end user to find that They have mechanical thermostat controls, solenoids, and even digital thermostatic solutions available from stock, making the upgrading process easy and pain-free.  After some conversations over the phone and emailing part numbers along with their Cabinet Cooler Installation and Maintenance Guide, which outlines how to install the thermostat for their Cabinet Cooler systems, this customer had everything required to do exactly what they needed in their facility.  (In this case, our model 9016 Solenoid Valve and Thermostat Kit met the voltage and compressed air flow requirements needed for the application.)

Providing efficient, controlled, and reliable solutions for industrial applications is all we do at EXAIR.  If you have an application in need of a complete solution, or just an upgrade, contact Vivek Engineers Application Engineer.  We’re happy to help.

Vivek Engineers#22, 1st Floor, 1st Cross, Adj. to IIMB Compound, Bilekahalli Indl. Area, 
Bannerghatta Road, Bangalore - 560 076.
Ph : 080 -  2648 1309, 3297 0358, 4170 1145
TeleFax : 080- 2648 1309.
E- mail : This email address is being protected from spambots. You need JavaScript enabled to view it. ,[email protected]
URL : www.vivekengineers.net

Wednesday 12 October 2016

EXAIR Line Vac Helped out in “Sticky” Situation.

Please allow us to introduce Vivek Engineers (http://www.vivekengineers.net). We are a group of qualified Engineers with an experience of over 25 years in the field of Automation with Pneumatics and plant solution products. We are the Authorised Distributor of EXAIR - USA product in India.

Recently Our Principal,Exair served to An office furniture manufacturing company which wanted to increase their production by installing two new automated edge banding lines in their facility.  These lines are designed to glue a plastic film to the outside edge of laminated wood panels.  Each system contained four gluing stations, one on each side of the line, positioned 15 meters apart.  Their goal was to duplicate their existing lines but with less floor space (and haven’t they all heard this one).  They were having issues in fitting the same type of equipment inside that limited amount of space.  Since they could not change the automated lines, they had to look at their next biggest system; the vacuum conveying system.  It consisted of a motor, a vacuum pump, an accumulator, and a control panel.  So, it had a large footprint (reference sketch below).


From the vacuum system, they branched out with conveyance lines that were fitted with a large actuator valve to open and close at certain times for filling.  With this configuration, they had a centerline distance between lines of 11 meters.  This conveying system was not only large, but very expensive.  They had to find an alternate method in order to add their new process lines.  They took to the internet and came across the EXAIR Air Operated Conveyors or, Line Vacs.




During their discussion, Clients gave to our principal their design specifications required for the application. The glue pellets were 5.5mm in diameter and had a bulk density of 1100 Kg/M^3.  The gluing stations would only use 50 kg/hr  per hopper at full capacity.  The opening of the hopper was positioned 4 meters from the ground level above the processing line.


With these requirements, the EXAIR Line Vac was the perfect product to use.  our principal suggested using one of a model 6982 Aluminum Line Vac Kit per hopper.   This kit comes with a 1 ¼” Line Vac, a mounting bracket, a filter separator, and a regulator.  The Client could mount them near the super sack of glue pellets, individually control each Line Vac, and convey the desired amount of material to each hopper.  At a 4 meter height and a maximum 15 meter distance, the model 6982 has the ability to convey nearly 150 Kg/hr at 5.5 bar.  The pressure regulator that is included in each kit could be used to “dial in” the required amount of material at the different distances.  With its compact size, 61mm diameter by 91mm long, it could fit nicely near the machines without taking up valuable floor space.

The Client was able to mount the Line Vac Kits next to the lines which allowed them to move the edge banding lines closer together.  They were able to decrease the centerline distance from the original system of 11 meters to a distance of 6 meters.   Thus, solving the above issue by gaining valuable floor space.  As an added value in conveying with EXAIR Line Vacs, they were able to reduce the cost by 1/10 of the original vacuum system.



The design of the Line Vac makes it very easy to mount, setup, and use right away. They do not have any moving parts or motor bearings to wear, making them very reliable and long lasting.  In addition to that, the cost comparison between the large vacuum system and the EXAIR Line Vacs has a great financial benefit as well.  If your company needs a compact, simple, inexpensive conveying systems to move product, you should contact an Application Engineer to see if we have an Air Operated Conveyor that will suit your application.

#22, 1st Floor, 1st Cross, Adj. to IIMB Compound, Bilekahalli Indl. Area, 
Bannerghatta Road, Bangalore - 560 076.
Ph : 080 -  2648 1309, 3297 0358, 4170 1145
TeleFax : 080- 2648 1309.
E- mail : This email address is being protected from spambots. You need JavaScript enabled to view it. ,[email protected]
URL : www.vivekengineers.net

Monday 3 October 2016

Industrial House Keeping: Chip Trapper

The new Chip Trapper (patent pending) offers a fast, easy way to clean chips, swarf and shavings out of used coolants and other liquids. The Chip Trapper vacuums the coolant or liquid that is filled with debris and traps all the solids in a reusable filter bag. Only the liquid pumps back out. It is ideal for use on machines with sumps, parts washers, tanks and storage containers of contaminated liquids.


The Chip Trapper uses EXAIR's compressed air powered Reversible Drum Vac (included) that can fill or empty a 55 gallon drum in less than two minutes. Simply set the Reversible Drum Vac pump and directional flow control valve on top of the drum to "fill" for it to quickly vacuum the liquid with solids. Once the sump, pit or tank is empty, set the pump and directional valve to "empty" for it to pump out clean coolant/liquid. All the chips and other solids are trapped inside the reusable filter bag of the Chip Trapper.

Wednesday 14 September 2016

Cold Gun Provides Cooling For CNC Router

Cold Gun Provides Cooling For CNC Router


Precision control with CNC’s means to achieve a near-identical output in product dimensions and quality.  And, it also means to create an identical problem every time the machine is used.
Case in point, the CNC shown above is used to machine a 5mm piece of aluminum, but was plagued with problems preventing it from performing to its full potential.  The problem, was that when the machine would plunge into the aluminum, the plunging speed would produce excessive heat leading to a deterioration in performance and quality.  The temporary solution for such a condition is to slow down the machining speeds, but this reduces the efficiency and throughput of the machine.
The real solution for this type of condition is to provide some sort of cooling for the drill head, and if possible, a means to remove the chips and debris from the machining area as well.  Fortunately, both of these are possible through the use of a Cold Gun Aircoolant System.
A Cold Gun in this application will provide cold air at temperatures below freezing to cool the drill, and the airflow from the Cold Gun will simultaneously clear the small chips and debris from the machining area.  And, these improvements to the application keep the workspace completely dry.  There’s no need to add a coolant collection system or to create additional work through cleaning coolant from the machined pieces once they’re complete.
Vivek Engineers#22, 1st Floor, 1st Cross, Adj. to IIMB Compound, Bilekahalli Indl. Area, 
Bannerghatta Road, Bangalore - 560 076.
Ph : 080 -  2648 1309, 3297 0358, 4170 1145
TeleFax : 080- 2648 1309.
E- mail : [email protected] 

Wednesday 31 August 2016

Air Nozzles and Jets Comparison

EXAIR manufactures a wide selection of Air Nozzles and Jets, which are divided into two groups.The first group includes Air Nozzles and Jets that deliver force up to 22 ounces (624 grams) and are suitable for most applications. h e second group includes Air Nozzles that produce high force up to 23 lbs (10.43 kg) where additional reach and force are required.

. Type 303 Stainless Steel- high temperatures and corrosive environments. Max temp 800°F (426°C)
. Type 316 Stainless Steel- high temperatures, corrosive environments, and mechanical wear. Max temp 1000°F (538°C)
. Brass- general purpose applications. Max temp 400°F (204°C)
. Type 303 Stainless Steel- high temperatures and corrosive environments. Max temp 800°F (426°C)
. Type 316 Stainless Steel- high temperatures, corrosive environments, and mechanical wear. Max temp 1000°F (538°C)
. Brass- general purpose applications. Max temp 400°F (204°C)

Saturday 27 August 2016

Super Air Wipe Helps in Testing Wire Insulation

A cable manufacturer sent to Exair, videos of his operation as they needed to improve their efficiency in removing water from the surface of the insulation. Their system began with the insulation being applied to the outside of the wire cable, being dipped into a water trough to harden the insulation, travel through the blow-off device, then into a spark tester.  The spark tester checks the insulation for imperfections.  Also called a hi-pot tester (high-potential), a high voltage is used to create a large potential across the insulation.  Any defects in the insulation can be detected, but it is very sensitive to surface contamination.  Being that the water is very conductive, it had to be removed or it would give a false result.  They were using a home-made circular blowing device (photo below) to blow the water off after dipping.  When they were at the higher line speeds, the blow-off device was not removing the water completely from the insulation.  This would cause the spark tester to alarm and stop production.
This company makes cables ranging from 10mm to 25mm in diameter. With various types of voltage ratings on the wire, the insulation was made with different types of materials and thicknesses.  So, the line speeds could range from 20 to 200 meter/minute.  Being that they needed a better way to remove the wire, they searched for wire and cable blow-off devices. They came across the Super Air Wipe from EXAIR.  The design of the Super Air Wipe blows compressed air at a 30 degree angle toward the center in a 360 degree air pattern, just like a cone.  It uses the Coanda effect to entrain as much ambient air into your compressed air to maximize force and efficiency.  Because of the variations in diameters and speeds, I suggested two different sizes, the model 2401 and model 2402.  The model 2401 has an I.D. of 1” (25mm), and it would work best with the cable diameters of 15mm and under.  The model 2402 has an I.D. of 2” (51mm), and it can handle the cables that are above 15mm in size. This pair of Super Air Wipes would give the customer the most consistent results no matter what line speeds that they ran.  With the split design of the Super Air Wipe, it makes it easy to clamp around the cable and change from one size to the other.


As they removed their home-made unit and attached the Super Air Wipes, they noticed a few things. The spark tester stopped getting false alarms.  This made the production process run smoother; even at the faster line speeds.  They noticed that the Super Air Wipe was much quieter.  With a decibel rating of 77 dBA, the nearby operators were very happy with this choice.  Also, they noticed that the Super Air Wipes used much less compressed air.  Because the design utilizes the “free” ambient air, less compressed air is required.  This would save them a lot of money in their electric bill and the stress on the compressed air system.  If your company needs to blow off cables, hoses, pipes, or any cylindrical type parts, the Super Air Wipe could be a great product for you.
Vivek Engineers#22, 1st Floor, 1st Cross, Adj. to IIMB Compound, Bilekahalli Indl. Area, 
Bannerghatta Road, Bangalore - 560 076.
Ph : 080 -  2648 1309, 3297 0358, 4170 1145
TeleFax : 080- 2648 1309.
E- mail : [email protected] 
URL : www.vivekengineers.net

Wednesday 24 August 2016

Digital Flowmeter

EXAIR’s Digital Flow meter is an effortless way to observe compressed air consumption & waste. The exact amount of compressed air being used downstream is accurately shown on the digital display. Identifying costly leaks or inefficient air products makes it possible to save thousands of dollars per year in compressed air waste.
The LED display on the Digital Flowmeter directly indicates the SCFM of airflow through that pipe (other flowmeters require the reading to be multiplied by a specific conversion factor to be accurate).EXAIR’s Digital Flowmeter has two models available for use on schedule 40 iron pipe- one designed for 1”& the other for 2”.Calibration is done on each Digital Flowmeter for the specific pipe size it is mounted to.
The design of the Digital Flowmeter is made for permanent mounting to the pipe. The user is required to drill two 3/16” diameter holes through the pipe using the drill bit & locating fixture. The two flow sensing probes of the flow meter are inserted in these holes. Once the clamp is tightened the unit seals to the pipe. There is no requirement of cutting, welding, adjustments or calibration.
Vivek Engineers#22, 1st Floor, 1st Cross, Adj. to IIMB Compound, Bilekahalli Indl. Area, 
Bannerghatta Road, Bangalore - 560 076.
Ph : 080 -  2648 1309, 3297 0358, 4170 1145
TeleFax : 080- 2648 1309.
E- mail : [email protected] 
URL : www.vivekengineers.net