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Re: Ebay manifold #130001334966

Posted By: SVP Neon Equipment
Date: Monday, 26 June 2006, at 8:32 p.m.

In Response To: Ebay manifold #130001334966 (Katerina)

> Can anybody advise me on this manifold ?
> Thank you Katerina

You asked for opinions. In my opinion it is not worth the opening bid amount. Here's why:

The seller does not know how it works: "I have no clue how this works." Therefore he/she cannot tell you how well it works.

The seller is selling it as is: "It is sold AS IS." Any technical help or customer support would be non existent because the seller doesn't know what it is or how you use it; they cannot help you.

It is a hodgepodge of miss-matched components, some Lab-Glass O-ring stopcocks (which are no longer made, so you would have a hard time getting replacement parts) and old greased stopcocks, which defeats the purpose of using the O-ring stopcocks.

The manifold is held together with latex rubber hose. Therefore, it cannot obtain or maintain a hard vacuum. e.g., It would "leak" all the time.

There is no gas fill pressure gauge (U-gauge, Torr gauge, etc.) You would not be able to measure the amount of gas you are putting in a tube.

It is unclear how you connect the gases. I assume with more rubber hose. Your gases would be contaminated as soon as you broke the seal on the flask.

There are no gas valves / stopcocks to meter the gases. How are you going to control the amount of gas you put in the tube?

The "40mm manifold body" is useless considering that the rest of the manifold is too small of a diameter and too long, which will defeat any pumping speed benefit obtained by the large diameter body.

The side-arm between the main stopcock and manifold body is too long and narrow and will make the connection to the vacuum pump fragile (unless you are well versed in such things you may break it trying to connect it to your pump).

The description mentions a "vacuum gauge Teflon stopcock", but there is not one pictured.

By the time you have the thing modified so it is usable and won't leak and add all the components that are missing, you could buy a new manifold that already has everything. JMO

Mark

Messages In This Thread

• Ebay manifold #130001334966 -- Katerina -- Monday, 26 June 2006, at 6:19 p.m.
  • Re: Ebay manifold #130001334966 -- SVP Neon Equipment -- Monday, 26 June 2006, at 8:32 p.m.
    • My wrker is saying it is beautifill $800 manifold -- Katerina -- Monday, 26 June 2006, at 8:44 p.m.
      • Re: My wrker is saying it is beautifill $800 manif -- Lookin to the future -- Monday, 26 June 2006, at 9:13 p.m.
        • Re: My wrker is saying it is beautifill $800 manif -- Burning Fire -- Tuesday, 27 June 2006, at 12:47 a.m.
      • A BETTER OFFER -- SVP Neon Equipment -- Tuesday, 27 June 2006, at 12:50 p.m.
      • Re: My wrker is saying it is beautifill $800 manif -- James -- Wednesday, 28 June 2006, at 3:42 a.m.
  • Re: Ebay manifold #130001334966 -- Dana -- Tuesday, 27 June 2006, at 12:32 a.m.
    • Re: Ebay manifold #130001334966 -- gavin -- Tuesday, 27 June 2006, at 9:45 a.m.
      • Re: Ebay manifold #130001334966 -- Michael D. -- Tuesday, 27 June 2006, at 11:38 p.m.
        • Re: Ebay manifold #130001334966 -- sparky -- Wednesday, 28 June 2006, at 5:19 p.m.
          • Re: Ebay manifold #130001334966 -- Sean S -- Thursday, 29 June 2006, at 4:08 p.m.

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