Plate and Frame Heat Exchanger Gasket and Plate Maintenance

1.  Plate Cleaning

A: Gross Fouling

Gross fouling is fouling by seaweed, wood chips, fibers, mussels, barnacles and other substantial fouling

Gross Fouling Cleaning Techniques:

a) Soft brush and running water

b) High pressure hose

c) Back flushing of the unopened heat exchanger can sometimes be sufficiently effective.

Note:

Be careful not to damage gaskets.  Under no circumstances should hydrochloric acid be used with stainless steel plates.  Water of more than 300 ppm Cl may not be used for the preparation of cleaning solutions.  It is very important that carrying bars and support columns in aluminum are protected against chemicals.

B: Biological Growth – Slime

Biological growth is from bacteria, nematodes and protozoa.

Biological Growth Cleaning Techniques:

a) Soft brush and running water

b) High pressure hose.

c) Chemical cleaning using alkaline cleaning agents:

                - sodium hydroxide

                - sodium carbonate

- Cleaning effect can be considerably increased by the addition of small quantities of hypochlorite or agents for the formation of complexes and surfactants.

Note:

Be careful not to damage gaskets.  Concentration max of 4%.  Temperature max of 80 degrees C.  Under no circumstances should hydrochloric acid be used with stainless steel plates.  Water of more than 300 ppm Cl may not be used for the preparation of cleaning solutions.  It is very important that carrying bars and support columns in aluminum are protected against chemicals.

C: Incrustation – Scaling

Incrustation is caused by calcium carbonate, calcium sulphate and silicates.

Incrustation Cleaning Techniques:

a) Soft brush and running water

b) High pressure hose.

c) Chemical cleaning on opened unit by using:

                - Nitric acid

                - Citric acid

                - Sulfamic acid

                - Phosphoric acid

                - Complexing agents (EDTA, NTA)

                - Sodium polyphosphates

Note:

Be careful not to damage gaskets.  Concentration max of 4%.  Temperature max of 60 degrees C.  Under no circumstances should hydrochloric acid be used with stainless steel plates.  Water of more than 300 ppm Cl may not be used for the preparation of cleaning solutions.  It is very important that carrying bars and support columns in aluminum are protected against chemicals.

D: Sediment

Sediment is caused by corrosion products, metal oxides, silt, alumina, diatomic organisms and their excrement of various colors.

Sediment Cleaning Techniques:

a) Soft brush and running water

b) High pressure hose.

c) Chemical cleaning on opened unit by using:

                - Nitric acid

                - Citric acid

                - Sulfamic acid

                - Phosphoric acid

                - Complexing agents (EDTA, NTA)

                - Sodium polyphosphates

Note:

Be careful not to damage gaskets.  Concentration max of 4%.  Temperature max of 60 degrees C.  Under no circumstances should hydrochloric acid be used with stainless steel plates.  Water of more than 300 ppm Cl may not be used for the preparation of cleaning solutions.  It is very important that carrying bars and support columns in aluminum are protected against chemicals.

E: Oil Residues, asphalt and fats

Oil residues, asphalt and fats are a byproduct of the heat exchange process that includes oil, asphalt and fat.

Oil, Asphalt and Fat Cleaning Techniques:

a) Hydrocarbon-based deposits may be removed by using a soft brush and a PARAFFINIC or NAPHTA-BASED solvent (e.g. KEROSINE)

Note: Gaskets in natural, butyl and EPDM rubber swell in these media.  Contact time should be limited to 0.5 hour.

The following solvents should not be used:

        - Ketones (acetone, methyletylketone, methuylisobutylketone)

        - Esters (Ethylacetate, Butylacetate)

- Halogenated hydrocarbons (Chloro-thene, Carbon tetrachloride, Frenons)

        - Aromatics (Benzene, Toluene)

b) Dry with a cloth or rinse with water.

Be careful not to damage gaskets.  Concentration max of 4%.  Temperature max of 60 degrees C.  Under no circumstances should hydrochloric acid be used with stainless steel plates.  Water of more than 300 ppm Cl may not be used for the preparation of cleaning solutions.  It is very important that carrying bars and support columns in aluminum are protected against chemicals.

2. Regasketing

There are two types of glue to be used in regasketing plates.

A. EPDM, NBR (rubber based)

- Single component rubber based solvent adhesive. 

- Normally used for repair work in an uncured condition

- Can be used for operating temperatures below 95 degrees C

- For operation temperatures above 95 degrees C and oil coolers / heaters the glued joints should be cured at 120 degrees C for one hour.

- Future removal of the gasket can usually be carried out without heating of the cement joint.

- Storage life at room temperature is about two years.  This period can be extended after checking the glue.

B. Viton and Silicon

-  A two component, cold curing epoxy glue which gives a strong joint for higher temperatures. 

-  Future removal of gaskets usually requires heating or freezing of the joint.

- The shelf life is limited to approximately 1 year when stored at room temperature but can be prolonged when kept in a refrigerator.

C. Clip in gasket (glue free)

-  The clip in gasket is attached to the plate by two gasket prongs which slip under the edge of the plate to hold the gasket securely in alignment in the gasket groove.

-  The prongs are situated at regular intervals around the periphery of the plate.

-  When the plate heat exchanger is then assembled and tightened, the gasket provides a tight seal around the plate.

3. Fault Detection

A.  Leakage between plate pack and frame

-  Mark the area where the leakage seems to be and open the heat exchanger.

- Investigate the gasket condition of the end plate and the connection if applicable.  Look for dislocation, foreign objects, scars and other damage to the gasket surfaces.

-  Check the surface of the pressure plate for unevenness, foreign objects etc., that might spoil the joint between the gasket and the adjacent surface.

- Check the plate itself for cracks and holes. 

More plate cooler gasket for heat exchanger, visit www.heatecholdings.com

Benefits of Using a Heat Exchanger

For many for are not aware, the main reason for using a heat exchanger is the fact that through it, the heat is transferred through different equipment and devices almost immediately. It is also used for cooling down of various materials such as water as well as oil for that matter. Also, clean and cold can either also be expensive or just corrosive due to natural reasons. In such circumstances, the usage of heat exchangers enables high end water cooling at a swift rate. It also has a high end heat transferal rate for equipment. 

High End Functionality

One of the most well-known benefits of using these exchangers is the fact that they offer spectacular performance, which is precisely why people prefer it over all the other methods of heat transfer from various commodities and natural sources. The high end electric motors found in these exchangers shows how swift they work and how very durable they can be. According to many user reviews, these devices can be really high end to configure and use sometimes but with the right amount of knowledge and some experience, it really gets easy later on. 

Different Kinds Available

All types of a heat exchanger arrive with different features which are unique in their way. Individuals should always choose the kind that they prefer the most in order to see the way it will benefit them in the near future. These exchangers definitely vary from model to model, and while some have different temperatures, the others have various sorts of design pressure. As these machines are used for the purpose of the removal of heat that is not required, these are used in areas where the temperature is a lot more than 20 degrees. Therefore, this piece of information should definitely be kept in mind before purchasing them in the near future.

The Most Exclusive of its Kind

In comparison with other exchangers, these have a lot more ability for heat transfer and removal and they have also more effective cooling and heating properties which make them a suitable choice in comparison with all the other machines and devices that can carry out the same job that they can do. Before purchasing a heat exchanger, one must always check out its performance and top features. Currently, a lot of these devices have advanced technology feature, which tends to increase the levels of the overall performance by a long shot and thus, making these exchangers a great long-term investment. 

Price Range

An important thing to know about a heat exchanger is the fact that it allows people to save money in a lot of things. While the initial cost may be high, it certainly pays off in the long run. Hence, investing in these is really recommended to all those individuals who wish to be able to ensure high end heat transferal as well as the cooling down of liquids. Mostly, these exchangers are used in top notch industrial plants and everywhere as such. It is safe to say that these exchangers are more towards the higher price range but they are certainly affordable for a lot of people.

Accurate & Reliable

A prominent benefit of using a heat exchanger is the fact that it stands undisputed as one of the most reliable sources for heat transferal and for cooling down liquids too. Amongst all the other ways through which human can fulfill this purpose, using heat exchangers is very much utilized these days as it is not only the most reliable but it is also the most convenient. While a lot of individuals may not yet be completely aware of these exchangers, they are slowly becoming everything that people would need when there is no way for cooling down liquids or to ensure heat transfer between various devices. 

Beside heat exchangers, Heatec Holdings also provides plate cooler gasket for marine services.

How to Change a Plate Cooler Gasket

Most of the times, a plate cooler gasket can be very dangerous to deal with if someone is not as experienced and if the machine they are handling is way too big for them to even consider touching. Plate cooler gaskets depend largely on the size of the machine; for huger machines, they are much bigger and only experienced people who work in teams can try and change them u if they leak or malfunction in any way. However, smaller plate cooler gaskets, like those installed in the vehicles, can be easily changed by normal people after a once over. Read on to know how this can be done.

Directions

First of all, one will have to lift the car and take off the engine cover to access the parts inside of it. After this, one needs to look for the plate gasket. Once they have looked for their target, they need to be able to drain out the engine oil. This is quite a common thing to do and thus, it has not been described in detail. Afterwards, one has to open up the manual of the vehicle to look for the coolant and then drain it out. When the oil filter starts to give out, put a muck bucket underneath it to catch the spillage. There are two lines in place one for coolant and the other for the filter and they are both connected together. Remove these two lines in order to move on. Be careful not to touch the exhaust fields or the hand will burn so, remove the oil cooler parts first, if possible.

Moving on, use a deep well oil socket in order to remove the oil connector but make sure that the oil cooler does not fall out since the connector also holds the oil cooler as well. Remove the oil plate gasket and make sure that everything is cleaned up properly and carefully before changing the appliances up. Use brake part cleaners and shop towels to do that otherwise the hands will get all smeary and dirty, messing up everything else. Get rid of all types of dust, grits, dirt and smears since new parts are supposed to be installed in very soon.

When the old parts have been cleaned, it is not time to put in the new plate cooler gasket. One must ensure that the new one bought is clean and free of all kinds of leakages and problems. Consult the manual to get to know more.

Now, before delving any further, start by swearing a bit of oil on the plate gasket to make sure that when it is put into the vehicle, it sails smoothly and fits in perfectly with the rest of the machine. It may expand a bit but that will not be a problem once the vehicle is up and running properly. Once it is placed safely in, start the engine again and get the car a bit warm. Now, put back everything that was taken apart earlier. The two lines connecting the oil cooler and the oil filter need to be reconnected and start screwing everything into place by hand. Then, it is time to connect the oil and coolant and to do that, make sure that the two lines are still a bit loose. After everything has been properly installed, start the car and drive away. Drive slowly for a bit before stepping on the race.

Manual

The user manual for the plate cooler gasket is, like always, the most helpful guides that readers will get from anyone. Many people just ignore the manuals and choose to do everything by themselves. This is a bad idea since it takes longer and the chances of error are greater. 

Tips for Plate Cooler Gaskets

When purchasing a plate cooler gasket, one needs to keep a number of things in mind since it is important to get all the right components for the equipment to work properly. Communication with the manufacturer is very important since that is how one will know what type of gasket will work best for their equipment. The manufacturer will be able to tell the buyer about the gaskets they have in stock and which type will work great with their equipment. Moreover, the buyer will be able to tell the manufacturer about his/her own requirements. This will ensure that only the most compatible components are ordered.

Coming to compatibility, it is important that the buyer himself checks the compatibility of the plate cooler gasket as well. Most importantly, chemical compatibility needs to be checked. The buyers need to make sure that the heat exchanger component and the liquids they use in labs work great with all equipment to be bought. Many of these components will contain the pH of 316, which is the element for stainless steel. Most of the chemicals used during labs are unable to harm stainless steel with a pH of 316. However, chlorine, which is often used in lab experiments can corrode the steel and thus, one needs to ensure a higher pH if they are to work with the aforementioned chemical. Also, the food industry uses certain chemicals to clean their equipment which may not work with a 316 pH.

Try and avoid situations which result in pressure spikes in the plate cooler gasket. 

Some manufacturers do make allowances with the engineering and the design, allowing the component to withstand some pressure but mostly, it is better to ensure that there are not many pressure spikes in place. These can be caused by immediately closing off a valve, a water hammer. These precautions will have to be taken otherwise, it can result in very lethal leakages that can even result in blowouts. Do not allow pressure changes which are more than one hundred and fifty psig every minute. Relief valves can be sued as remedies in such situations. 

Make sure that the plate cooler gasketremains clean and regularly check it for particles. Even though it is recommended that one thoroughly checks through the entire thing and eliminate particles of all kinds, it is okay if one misses out a couple of small particles. However, the large particles are what users will have to be wary about. This is because the movement of fluid within the equipment can be badly hampered if these large particles are blocking the way. The movement of the fluid can stop and one particular zone in the gasket can overflow, causing leakages and emergency situation, consequently. Make sure the particles are no bigger than 0.0625 inches. In an open tank, one will have to be even more careful.

Make sure that the integrity of the frame dimensions and plate pack dimensions in the plate cooler gasket are checked periodically. This can be vital to stop leakages when they occur and sometimes, even before they actually take place. The manufacturer will provide the details on the dimensions and the pack when the purchase is carried out and it is highly recommended that corks and screws are checked every so often to ensure that the necessary safety precautions are taken. Also, the equipment must be checked for damage and corrosion so that one can know when the equipment will have to be replaced.

A plate cool gasket is a very important component in a number of equipment and one must use it properly and after checking and inspecting it properly. 

Advantages and Disadvantages of Oil Coolers

Oil coolers perform the duty of removing surplus heat from oils, especially in vehicles that require constant performance. One of the major jobs of oil cooler is to ensure that the heat from the combustion engine does not overpower its performance. It also has to make sure that the heat does not fall below a certain level required for the car or vehicle to function. There are many other methods to cool down the atmosphere inside the car and people can employ the ones they like. Thus, there are many benefits and drawbacks to using oil coolers instead of other methods.

Oil cooler use oil instead of water to cool down the atmosphere and since the boiling point or temperature of oil is much higher than that of water, it can be used readily to cool things down. It will be able to perform its duties better due to this fact. Water usually boils at a hundred degrees but starts getting warmer much earlier. An oil cooler will stay cooler for a longer period of time. Some pressurized water coolers may be able to surpass the performance pelted out by oil coolers but that is usually much more expensive and costly.

Moreover, the problem with using water coolers is the fact that water is considered to be a conductor of electricity – and a very good one at that. If people use water coolers, there is a huge chance that some parts of the vehicle that work on electricity may come in contact with water and cause irreparable harm. To counter this, many people install separate coolers for the electric components in inside their appliances. An oil cooler, on the other hand, can be used to cool every single part of the equipment or appliance since it is an electricity insulator and can come in contact with electric components.

Another drawback to using water coolers is the amount of corrosion the cooler is likely to cause in the engine when it travels around. On the other hand, an oil cooler will actively work against corrosion and one will also not need to ensure that they regularly put oil on different components in the machine as oil will be running all over anyway. Thus, as opposed to water, oil is a much safer and better option. It will increase the working age of the vehicle and make it less rusty. Oil leaking in to parts will not cause much harm to anyone but water leakage may prove to be beyond deadly.

Since there are so many plus points to using oil coolers, there are many disadvantages as well. First up, it is not likely that the oil will cool anything over three hundred degrees because at that point, the oil will begin reaching its boiling point. Instead of making the individual parts in the equipment better, it will end up making the parts rusty and may leave behind ashy solids that can hamper the discourse of the vehicle. An oil cooler, therefore, is good up until a certain point. After that, it ceases to be anything extraordinary. It cannot work in every condition.

Lastly, oil coolers run with oil which can easily be degraded, become harmful to the parts in the vehicle and reduce the performance capability of the vehicle. On the other hand, water will not degrade – it may boil away or steam up but it will not become harmful to the vehicle itself. Also, oil may not conduct electricity but it is highly flammable; if the vehicle catches fire, it can prove to be very dangerous for the people travelling within because it can result in a huge blast. 

More marine services for oil coolers, click here.

How to Change a Plate Cooler Gasket

Introduction

Most of the times, a plate cooler gasket can be very dangerous to deal with if someone is not as experienced and if the machine they are handling is way too big for them to even consider touching. Plate cooler gaskets depend largely on the size of the machine; for huger machines, they are much bigger and only experienced people who work in teams can try and change them u if they leak or malfunction in any way. However, smaller plate cooler gaskets, like those installed in the vehicles, can be easily changed by normal people after a once over. Read on to know how this can be done.

Directions

First of all, one will have to lift the car and take off the engine cover to access the parts inside of it. After this, one needs to look for the plate gasket. Once they have looked for their target, they need to be able to drain out the engine oil. This is quite a common thing to do and thus, it has not been described in detail. Afterwards, one has to open up the manual of the vehicle to look for the coolant and then drain it out. When the oil filter starts to give out, put a muck bucket underneath it to catch the spillage. There are two lines in place one for coolant and the other for the filter and they are both connected together. Remove these two lines in order to move on. Be careful not to touch the exhaust fields or the hand will burn so, remove the oil cooler parts first, if possible.

Moving on, use a deep well oil socket in order to remove the oil connector but make sure that the oil cooler does not fall out since the connector also holds the oil cooler as well. Remove the oil plate gasket and make sure that everything is cleaned up properly and carefully before changing the appliances up. Use brake part cleaners and shop towels to do that otherwise the hands will get all smeary and dirty, messing up everything else. Get rid of all types of dust, grits, dirt and smears since new parts are supposed to be installed in very soon.

When the old parts have been cleaned, it is not time to put in the new plate cooler gasket. One must ensure that the new one bought is clean and free of all kinds of leakages and problems. Consult the manual to get to know more.

Now, before delving any further, start by swearing a bit of oil on the plate gasket to make sure that when it is put into the vehicle, it sails smoothly and fits in perfectly with the rest of the machine. It may expand a bit but that will not be a problem once the vehicle is up and running properly. Once it is placed safely in, start the engine again and get the car a bit warm. Now, put back everything that was taken apart earlier. The two lines connecting the oil cooler and the oil filter need to be reconnected and start screwing everything into place by hand. Then, it is time to connect the oil and coolant and to do that, make sure that the two lines are still a bit loose. After everything has been properly installed, start the car and drive away. Drive slowly for a bit before stepping on the race.

Manual

The user manual for the plate cooler gasket is, like always, the most helpful guides that readers will get from anyone. Many people just ignore the manuals and choose to do everything by themselves. This is a bad idea since it takes longer and the chances of error are greater. 

Tips for Plate Cooler Gaskets

When purchasing a plate cooler gasket, one needs to keep a number of things in mind since it is important to get all the right components for the equipment to work properly. Communication with the manufacturer is very important since that is how one will know what type of gasket will work best for their equipment. The manufacturer will be able to tell the buyer about the gaskets they have in stock and which type will work great with their equipment. Moreover, the buyer will be able to tell the manufacturer about his/her own requirements. This will ensure that only the most compatible components are ordered.

Coming to compatibility, it is important that the buyer himself checks the compatibility of the plate cooler gasket as well. Most importantly, chemical compatibility needs to be checked. The buyers need to make sure that the heat exchanger component and the liquids they use in labs work great with all equipment to be bought. Many of these components will contain the pH of 316, which is the element for stainless steel. 

Most of the chemicals used during labs are unable to harm stainless steel with a pH of 316. However, chlorine, which is often used in lab experiments can corrode the steel and thus, one needs to ensure a higher pH if they are to work with the aforementioned chemical. Also, the food industry uses certain chemicals to clean their equipment which may not work with a 316 pH.

Try and avoid situations which result in pressure spikes in the plate cooler gasket. 

Some manufacturers do make allowances with the engineering and the design, allowing the component to withstand some pressure but mostly, it is better to ensure that there are not many pressure spikes in place. These can be caused by immediately closing off a valve, a water hammer. These precautions will have to be taken otherwise, it can result in very lethal leakages that can even result in blowouts. Do not allow pressure changes which are more than one hundred and fifty psig every minute. Relief valves can be sued as remedies in such situations. 

Make sure that the plate cooler gasket remains clean and regularly check it for particles. Even though it is recommended that one thoroughly checks through the entire thing and eliminate particles of all kinds, it is okay if one misses out a couple of small particles. However, the large particles are what users will have to be wary about. This is because the movement of fluid within the equipment can be badly hampered if these large particles are blocking the way. The movement of the fluid can stop and one particular zone in the gasket can overflow, causing leakages and emergency situation, consequently. Make sure the particles are no bigger than 0.0625 inches. In an open tank, one will have to be even more careful.

Make sure that the integrity of the frame dimensions and plate pack dimensions in the plate cooler gasket are checked periodically. This can be vital to stop leakages when they occur and sometimes, even before they actually take place. The manufacturer will provide the details on the dimensions and the pack when the purchase is carried out and it is highly recommended that corks and screws are checked every so often to ensure that the necessary safety precautions are taken. Also, the equipment must be checked for damage and corrosion so that one can know when the equipment will have to be replaced.

A plate cool gasket is a very important component in a number of equipment and one must use it properly and after checking and inspecting it properly.