looking for flexible pipe connector
looking for flexible pipe connector
(OP)
Hello anybody,
I am looking for flexible connectors for pipes, allowing for some misalignment between the two parts of a pipe due to the mounting. Does anybody know of such flexible connectors for 1000 psi internal pressure, for diameters between 2" and 10"?
Thanks in advance
I am looking for flexible connectors for pipes, allowing for some misalignment between the two parts of a pipe due to the mounting. Does anybody know of such flexible connectors for 1000 psi internal pressure, for diameters between 2" and 10"?
Thanks in advance





RE: looking for flexible pipe connector
Take a look at Hyspan. They have a few options.
http://www.hyspan.com/
http://www.hyspan.com/bj_ASME.html
RE: looking for flexible pipe connector
http://www.myej.net/Products.aspx
We are in the process of purchasing some flexible braided metal/bellows pump connectors. Good to work with. I'm not sure if they can fulfill the 1000 psi, but I imagine they can if you contact them.
RE: looking for flexible pipe connector
Please advise if still looking for something and can forward some information. This product is however not currently available on the market.
RE: looking for flexible pipe connector
Many Thanks in advance
RE: looking for flexible pipe connector
The main advantages as I see are:
1) Bolting stress is minimized. As a test I loose bolted (ie. finger tight) with only 4 bolts versus 8. Introduced approximately 1/8" misalignment across the faces and pressured to 1500 psi. It held bubble tight. Did not try to take the pressure any higher.
2) Current flange connections require near perfect parrallel offset to minimize stresses when the bolts are torqued. With this principle as in the test (ie. 1/8" misalignment) some misalignment can be tolerated.
3) Even with perfect parallel face alignment there is still inherent stressed introduced when the bolts are torqued as room is required for installing and compressing the gasket. When you have two sets of flanges such as in a valve installation there is no getting around this using raised face flanges.
This idea allows as much gap as can be designed for. The only limitation is the length of travel of the floating face designed into it.
4) The higher the pressure the higher the sealling forces.
5) This idea is simple and can be adapted to replace many different types of pipe and hose connections such as compression fittings and unions.
6) Compression gaskets need to be replaced after each use. This incorporates o-rings which see no wear and can be reused. Is not limited to orings as a sealant member. Can use lip seals, quad rings or the like.
7) Can be utilized as an expansion and contraction joint to allow for stress movements in pipe arrangements due to heat, ground heave, etc....
8) Significantly reduce time and effort in equipment installation and reinstallations. Example: A great deal of effort is required to minimize stress on pump nozzles when reinstalling. As there is minimal or no pipe stress transfer this effort can be reduced or eliminated.
9) Can be used as a gasket insert configuration in a typical face to face flange.
RE: looking for flexible pipe connector
This connection can come in various configurations including as a flexible gasket insert for a face to face flange configuration. This replacing the typical gasket.
RE: looking for flexible pipe connector
Best Regards
RE: looking for flexible pipe connector
You say that it can be used as an expansion joint and can used as an expansion and contraction joint for stress movements.
I'm certainly not seeing that from the picture and sketch.
Can you elaborate on that?
NozzleTwister
Houston, Texas
RE: looking for flexible pipe connector
Being straight up this is a concept only at this stage. In the next day or two when get a moment I will paste some pics of various proto adaptions of the idea. If have any comments after viewing would appreciate.
RE: looking for flexible pipe connector
By revealing it in a global public forum, without even a copyright notice, you've effectively given it away to the world.
Uh, thanks, I guess.
Mike Halloran
Pembroke Pines, FL, USA
RE: looking for flexible pipe connector
RE: looking for flexible pipe connector
While it may tolerate some flange misalignment, it is not any kind of expansion joint, just a flange connection with an alternate sealing arrangement.
I'm looking forward to your future posts to show me what I'm not seeing in your design.
NozzleTwister
Houston, Texas
RE: looking for flexible pipe connector
Steve Wagner