Ok I'm not to sure how to explain this very well but here it goes

WOW!!
You are asking for help and we are blind.
Do you have a P&ID that you can attach?
Why do they want to "Pig" these lines?
Is the product "dirty"?
What kind of "Pig" do they want to use?

You have only mentioned some Tanks and some Reactors, don't you also have some pumps involved here too?

We need more information before we can give more information.

WOW!!
You are asking for help and we are blind.
Do you have a P&ID that you can attach?
Why do they want to "Pig" these lines?
Is the product "dirty"?
What kind of "Pig" do they want to use?

You have only mentioned some Tanks and some Reactors, don't you also have some pumps involved here too?

We need more information before we can give more information.

Humm well I see your point but its really hard for me to explain I guess. Each tank has a lini coming off it with a pump on that line. It then goes to a manifold. Thats where they come together and share a line. That line has to be pigged because you cannot mix these products, it has to be like a new line each time. If I branch off the main part of the line and go to a reactor with one product how do I get the pig to clean it properly. I don't know, I'm not sure I can even explain their idea properly. I think they should quit being tight wads and just run a seperate line from each tank.

It won't let me put a pdf on here.

Humm well I see your point but its really hard for me to explain I guess. Each tank has a lini coming off it with a pump on that line. It then goes to a manifold. Thats where they come together and share a line. That line has to be pigged because you cannot mix these products, it has to be like a new line each time. If I branch off the main part of the line and go to a reactor with one product how do I get the pig to clean it properly. I don't know, I'm not sure I can even explain their idea properly. I think they should quit being tight wads and just run a seperate line from each tank.

It won't let me put a pdf on here.

Based on you last answer you will be needing "Batching Pigs", a Pig Launcher/Receiver Station at both ends of the line.
These Launcher/Receiver Stations take up a lot of space. There is a lot of valving required around the launcher/receivers. They also need to be paved, curbed and have drain sumps for wash down/Steam out cleanup. There also needs to be storage for the "Pigs" (dirty and clean) when not in use.
Here is a link to information on "Pigs" and "Pigging"

http://www.ppsa-online.com/about-pigs.php

What is the line size for this "New" single transfer line?
What will the material of this line be?
How often will the products change from one tank/product to another tank/product?

You will have more questions.

Based on you last answer you will be needing "Batching Pigs", a Pig Launcher/Receiver Station at both ends of the line.
These Launcher/Receiver Stations take up a lot of space. There is a lot of valving required around the launcher/receivers. They also need to be paved, curbed and have drain sumps for wash down/Steam out cleanup. There also needs to be storage for the "Pigs" (dirty and clean) when not in use.
Here is a link to information on "Pigs" and "Pigging"

http://www.ppsa-online.com/about-pigs.php

What is the line size for this "New" single transfer line?
What will the material of this line be?
How often will the products change from one tank/product to another tank/product?

You will have more questions.

It is going to be a 2" line. I know one of the products is EPON another is glycol ether e.b., and BTC-2125M. As far as how often they just said maybe 4 times a day. Thank you for the info so far, I was kinda thrown in the pit and I'm trying to learn as fast as possible

It is going to be a 2" line. I know one of the products is EPON another is glycol ether e.b., and BTC-2125M. As far as how often they just said maybe 4 times a day. Thank you for the info so far, I was kinda thrown in the pit and I'm trying to learn as fast as possible

2" line, is that so?
Okay, either someone is pulling your leg or you are trying to pull my leg. Either way it is dirty pool!

You are not going to be "Pigging" a 2" line. I don't know of anybody who even makes a "Pig" that small.
Maybe you should contact the people at the link I sent you (see above) and ask them if they make a "Pig" that small.
While your at it you might want to ask then what the minimum radius should be used for the bends or elbows on 2" pipe that will pass that 2" Pig.

While you wait for their answer (assuming you get one), you might want to go ahead and start planning the routing for individual 2" carbon steel lines from the pumps to the reactors.

Sorry for my attitude here but I feel that someone is not being truthful with you.

2" line, is that so?
Okay, either someone is pulling your leg or you are trying to pull my leg. Either way it is dirty pool!

You are not going to be "Pigging" a 2" line. I don't know of anybody who even makes a "Pig" that small.
Maybe you should contact the people at the link I sent you (see above) and ask them if they make a "Pig" that small.
While your at it you might want to ask then what the minimum radius should be used for the bends or elbows on 2" pipe that will pass that 2" Pig.

While you wait for their answer (assuming you get one), you might want to go ahead and start planning the routing for individual 2" carbon steel lines from the pumps to the reactors.

Sorry for my attitude here but I feel that someone is not being truthful with you.

I havent seen pigs that small either. But if it is a typo error say it is 20" is this a very long line that the same pipe is expected to carry different fluid? How much are you going to save on pipes and supports? Pigging the lines everytime there is a change in fluid will be a pain. It will be a huge maintenance issue if you do not want two fluids to mix.

Cheers

I havent seen pigs that small either. But if it is a typo error say it is 20" is this a very long line that the same pipe is expected to carry different fluid? How much are you going to save on pipes and supports? Pigging the lines everytime there is a change in fluid will be a pain. It will be a huge maintenance issue if you do not want two fluids to mix.

Cheers

I'm not yanking your chain. They are very serious about making this system and pigging 2" lines. I have also done some research and they do make pigs that small. The Idea is to have 10 tanks all with a dedicated line going to a manifold A at the end of the tank farm. From there they want to use hoses to connect to the manifold B that is attached to the reactors and blenders. Since none of these products can mix because of contamination issues, we will pig the lines going from the manifold B to the reactor. If tank 5 fills one reactor with a product, it goes through its cycle and produces a product that goes in tank 6. Since these cannot mix after they are done in the reactor we have to pig the line so we don't throw the batch off. Sorry for the late reply I've been very busy trying to understand their concept and fix their ideas. ( piping designers job= making engineers dreams come true.)

Thanks for all the input,

Joe

I'm not yanking your chain. They are very serious about making this system and pigging 2" lines. I have also done some research and they do make pigs that small. The Idea is to have 10 tanks all with a dedicated line going to a manifold A at the end of the tank farm. From there they want to use hoses to connect to the manifold B that is attached to the reactors and blenders. Since none of these products can mix because of contamination issues, we will pig the lines going from the manifold B to the reactor. If tank 5 fills one reactor with a product, it goes through its cycle and produces a product that goes in tank 6. Since these cannot mix after they are done in the reactor we have to pig the line so we don't throw the batch off. Sorry for the late reply I've been very busy trying to understand their concept and fix their ideas. ( piping designers job= making engineers dreams come true.)

Thanks for all the input,

Joe