Category: Industrial Mechanical


8 Tips To Prevent Pipes From Freezing

January 30, 2018

Industrial Mechanical

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Do you have any idea as to what the Arctic Vortex is? Actually, this thing is responsible for bringing a lot of cold. In winter, if you have a frozen pipe problem, you may want to follow the tips given below to make sure that your pipes don’t freeze.

Be Prepared

It matters to get ready ahead of time. What you need to do is cut a few blocks of foam to seal the base vents. Also make sure you know the location of the water shutoff. This will help you deal with the situation in case you find a broken pipe. You may also want to have a temporary patch kit in order to seal the burst pipes. You can then wait for the right season to get it repaired. You should do you research to find out the best plumber to fix the pipes that have already been frozen.

Increase the thermostat

If your house is an old one and built over a non-insulated crawl space, you may want to increase the thermostat to raise the air temperature. This will keep all of the pipes from freezing.

Install Fiberglass

You should get some insulation of unfaced fiberglass. Moreover, you should get some disposable coveralls, work gloves, a dust mask and some knife blades. Once you have worn the gloves, you should figure out your insulation needs.

Use Foam Board

Do you want to protect a wide area? If so, you can use a barrier of foam board to retain the heat. You can also do with an unfaced or faced foam board if you want a temporary fix. You can use a sharpie or a pencil to mark the surface.

Install a Heating Cable

You should consider installing a heating cable. Before you do this, make sure you read the instruction manual. Some tapes run along the pipe and some are wrapped around it. At times, the cable needs to be cut so you need to opt for a kit to get it into the desired shape.

Use A Space Heater

You can put an electric heater close to the pipes to keep the cold away. Keep in mind that the purpose is not to keep the space comfortable. Instead, the goal is to keep the water in the pipes from freezing.

Turn The Water off

Another option is to turn the water off by closing the main valve, especially if you are not going to stay in the house. In case the pipes freeze, the spillage will be limited to the amount of water in the pipe.

Open Cabinet Doors

The pipes may be running to your exterior wall or the kitchen sink, and the pipes may be vulnerable since the wall is not usually insulated. To let the heat come in, you may want to open the doors of the cabinet along the wall. For extra protection, you can put the heater near the cabinets.

So, if you have been looking to keep your pipes from freezing in winter, we suggest that you follow the tips given in this guide. Hope this will help.

Packaged Water Bottle Testing – 3 Important Tests for Every Manufacturer


With the rising demand for packaged drinking water, the beverage companies are investing a big share in packing and promoting mineral-rich water. But there is a considerable difference in the prices. The reason behind this is quality of packing that is used for packing the water. A good quality bottle has undergone different types of testing and is considered as user-friendly and safe as primary packing.

By not going into the molecular structure or chemical properties, physical properties are really a matter of concern for most of the manufacturers. Deformed bottles, broken bottles, leaked caps, etc. may lead to spoilage of the whole lot and may face straightway rejection from QC in-charge or from the retailer. To cut down the rejection cost and failure cost, it is important to perform the test before starting the mass production of the bottles.

Top Load Testing – During transportation or in warehouses, the bottles are stacked over each other. It is a very common technique of utilising the space efficiently. Due to stacking, bottles are being subjected to a constant compressive load. This may result in buckling of the bottle from different points, like from the neck or from the bottom. To avoid such deformities, manufacturers must perform top-load testing by applying a compressive load on the bottle sample. If manufacturers understand the behaviour of their bottles, they can issue the guidelines to the carrier not to subject the load exceeding the defined limit. In case of failure to follow the guidelines, claims can be slapped on the carrier company.

Torque Testing – Torque is the rotational force applied to the cap to open it. To make bottles user-friendly, it is important to have right torque requirements. The user of a packaged water bottle could be a 10 years old child or a 65 years old lady. So, there is a huge variation in strength that can be applied. Having the appropriate torque not only makes the bottle user-friendly but also assures the leak resistance.

Bottle Drop Testing – It is a very simple test but tells a lot about the crack resistance or dent resistance properties of the bottles. When PET bottle falls from a height accidentally or due to manhandling, how strong it is to bear the impact of free falling? In this test, the bottle is made to drop from a height and visual analysis is done to see any deformity developed. Drop testing instrument is a standardised instrument designed as per the testing standards issued by relative authorities.

For capturing a good market share it is very important to think from customer’s perspective. Failing to adhere quality standards result in short lived success. Thus, delivering a good user experience along with good quality should be the priority of manufacturers.

All About Salt Spray Testing

January 30, 2018

Industrial Mechanical

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A salt spray test is also called corrosion testing and is performed on metal products. This test estimates the resistance of surface coating against the corrosion initiating conditions. In a neutral salt spray test, the specimen is exposed to the saline fog for a specific duration and when the test cycle is completed, the specimen is analysed visually. There are standards defined by relative authorities to perform the test step by step. ASTM B117 is followed that has defined all the conditions and precautions to be taken while performing this test.

Test Procedure

· To perform the test, first of all, a standardised salt spray chamber is required.

· To begin the test, place the sample in the chamber by rubbing off all the contaminants like dust or grease from the specimen surface.

· The angle of placement should be 20° and the should be kept away from the chamber walls. Close the canopy of the chamber and set the time period.

· The duration of the test can be in the multiple of 24, like, 24 hours, 48 hours, 72 hours and so on.

· Many machines are equipped with HMI panel or touch screen panel to allow the profile programming.

· Once the test is complete, the specimen is taken out and analysed visually.

· If the specimen does not show any traces of rust it passed the test, else it is failed.

Precautions to be Taken

· The temperature of the chamber should be approx. 37°C.

· The level of fog that is to be maintained is 5ml.

· During the test, the canopy should not be opened. It disturbs the test conditions that are maintained inside the chamber.

· It is very important that the test should run non-stop. Therefore, it is very necessary to have a water reservoir.

· The sample should not be placed very close to the walls, it may result in uneven exposure to fog.

Importance of Corrosion Testing

In metal industries, this test serves different purposes. Some industries try to evaluate the behaviour of their product in real working conditions, while some try to estimate the shelf life of their product. There is one interesting analysis and that is a determination of salt spray life. It can be defined as the number of hours a specimen can withstand without developing the corrosion. In many industries, it is used as the parameter to judge the regression in the production process. Over the time, due to wear and tear of the machine or with the age of the machine the production process starts to develop loopholes which might not get recognised unless tested. The quality of the coating starts to degrade unintentionally. This degradation can be determined by salt spray testing. If a coated product used to have a salt spray life of 96 hours but now it has started to fail at 84 hours, this means the coating process needs reconsideration.

It is an internal way of setting up quality standards. The manufacturer must consistently adhere to these standards to deliver high-quality products. Salty fog testing is considered an important parameter in the metal industry. It not only tests the sustainability of the coated surface but also determines the real-time behaviour of the product.

There is always a misconception among the manufacturers and they try to relate the salt spray life with real life. But this is not the aim of the test. Because in real life conditions, there is a periodic cycle of wet and dry events. However, in simulated tested conditions, there are constant wet conditions. Understanding the right aim of this test is very important so that right testing purpose can be served.

Insulation Covers And Connectors – Important Electrical Accessories

January 30, 2018

Industrial Mechanical

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Brief on Insulation Covers
Insulation covers or blankets help maintain process temperature, protect machine components from environmental stress and give highest level of insulation thus ensuring long product life. They not only protect the product but also the personnel working on the machines. Insulation covers reduce undue stress on the machinery and offer increased energy efficiency. These blankets also aid in effective process control by keeping checks on process temperatures, flow of the material, levels of ingredients in the process, etc. Overall they help in making the process cost effective.

An insulation cover is either tight fit or removable. Even the tight fit covers are removable and replaceable. They ensure a complete covering and are highly long lasting. Customized insulation blankets can be designed by studying the facility, evaluating the process parameters and ensuring they increase the efficiency.

Brief on Screened Separable Connectors

Functional Parameters
Connectors are an electro mechanical device for joining and making the electrical terminations touch proof. They consist of a male component viz. Plugs and the female component viz. Jacks. The screened separable connectors are made of silicone EPDM rubber. They connect cables to switch gears, transformers and other equipment. These connectors are protected by touch proof outer screen making them fully insulated, submersible. The fully screened connection makes mating with both A and C type bushings possible. Their design is compact, finish is smooth, current capacity is high to the tune of 250A, 630A to 1250A and performance is effective. Their voltage ratings are 11KV, 15KV, 24KV, etc. Using these connectors both ends of the cable are terminated sometimes using identical connectors or at times terminated differently.

Installation
The screened separable connectors are easy, safe and quick to install due to their optimized design and selection of material. They fit into smallest of installation spaces and even when the clearances for operation is insufficient.

Characteristics
Connectors are a physical interface and they should be of a proper size, offer good resistance, give proper insulation, show ruggedness, should be resistant to water, pressure and other factors. Their reliability, durability and ease of installation determine the area of usage.

Applications
These connectors find usage in a wide range of industries like electric substation, underground distribution, shipping, mining, oil and gas, railways, etc.

Summarizing
Screened separable connectors make the terminations touch proof and the insulation covers provide utmost electrical safety. The installation, operational and performance qualification of these accessories must be well documented to ensure compliance with regulations. Onsite training and documentation of the same is also a requirement for safety compliance.