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ferquiza
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Join Date: May 2008
Posts: 380

Metallic bellows avoiding seals in pumps

11/08/2008 6:56 PM

Did you ever know who makes or made any pump like this?I made every kind of calculations,fatigue included and when small flux is involved and so high pressure the toroidal metallic bellow should work.Isn't it?could avoid every plastics seals!!
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bhrescobar
Guru
Brazil - Member - New Member Engineering Fields - Mechanical Engineering - New Member Hobbies - RC Aircraft - New Member Hobbies - Target Shooting - New Member Hobbies - Automotive Performance - Hey there... interested in exchanging information about car performance? Hobbies - DIY Welding - New Member

Join Date: Jan 2007
Location: Porto Alegre - RS - Brazil 30deg01'39.73"S 51deg13'43.45"W
Posts: 831
Good Answers: 28
#1

Re: Metallic bellows avoiding seals in pumps

11/09/2008 9:33 PM

I've seen some of those kind of pumps with diaphragms made of stainless steel for pumping chemicals with contaminants. They work fine with plane elements, not thoroids. To help reduce the stiffness, they are shaped like the waves in water surface when you drop a rock... if I made myself clear...

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Anonymous Poster
#7
In reply to #1

Re: Metallic bellows avoiding seals in pumps

11/15/2008 8:06 PM

That's great.Could you give me more information about like who makes or made ....
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welderman
Guru
Hobbies - DIY Welding - New Member

Join Date: Sep 2007
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#2

Re: Metallic bellows avoiding seals in pumps

11/10/2008 9:03 AM

I have an application for such a pump. If you find one, please let me know. In the meantime, Metal Bellows Corp. in MA makes a similar one that uses a metal bellows. Not as elegant as yours, but it works well.
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Anonymous Poster
#8
In reply to #2

Re: Metallic bellows avoiding seals in pumps

11/15/2008 8:08 PM

Sorry you said in MA...What's MA?
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welderman
Guru
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#12
In reply to #8

Re: Metallic bellows avoiding seals in pumps

11/17/2008 7:50 AM

You can lead a horse to water------never mind.

Senior Aerospace Metal Bellows

Senior Operations LLC

1075 Providence Highway

Sharon, MA 02067

800-BELLOWS

TEL:781-784-1400

FAX: 781-784-1405
http://www.metalbellows.com/products/compressor-pump.html
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Nigh
Guru
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Location: South east U.K.
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Good Answers: 93
#3

Re: Metallic bellows avoiding seals in pumps

11/10/2008 10:25 AM

That looks like a very stiff shape to actuate, wouldn't a linear bellows work better?

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Anonymous Poster
#9
In reply to #3

Re: Metallic bellows avoiding seals in pumps

11/15/2008 8:13 PM

This is a small displacement, the kind of just one unit you show.
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Nigh
Guru
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#11
In reply to #9

Re: Metallic bellows avoiding seals in pumps

11/17/2008 5:30 AM

How small? I have bellows down to about 2mm diameter x 4mm long.

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Anonymous Poster
#4

Re: Metallic bellows avoiding seals in pumps

11/11/2008 5:19 AM

Dear

There is equipement details is must like the pump manufacturer, suffing box details,shaft dia,Media details like pumping,liquid,temp,pressure,suction and discharge,viscosity

Ther are so many seal manufacturers in India

you can contact to

Leak proof engg

F-1 laxmi industrial Estate

Azad nagar Mumbai
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RHABE
Guru

Join Date: Dec 2006
Location: Germany 49° 26' N, 7° 46' O
Posts: 1950
Good Answers: 109
#5

Re: Metallic bellows avoiding seals in pumps

11/12/2008 11:21 AM

Hi,

these pumps are typically used for metering fluids (water disinfection and other chemical dosing for example).

LEWA and PROMINENT are producers in Germany that deliver worldwide.

RHABE
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welderman
Guru
Hobbies - DIY Welding - New Member

Join Date: Sep 2007
Posts: 1601
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#6

Re: Metallic bellows avoiding seals in pumps

11/12/2008 12:06 PM

What you have sketched looks a lot like a metal version of a rolling diaphragm made by Bellofram Corp. Google them if you want more information.
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Anonymous Poster
#10

Re: Metallic bellows avoiding seals in pumps

11/15/2008 8:17 PM

OK FRIENDS,i 'll check lewa prominent and bellofram.I am Ferquiza in hollydays and i couldn't thank you your information we'll se now..
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Users who posted comments:

Anonymous Poster (5); bhrescobar (1); Nigh (2); RHABE (1); welderman (3)

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