Push on fitting in new construction projects

[Nate Benishai]

Hi,
is there a reason why on new construction pipeline project solutions like push on couplings or two bolt fittings are not being used?

 

[MJCronin]

Probably because of the pressure/design limitations or the lack of industry experience with the fittings.

As I recall, push on couplings are restricted to small bore piping/air or nitrogen systems.

The gaskets have temperature limitations also...

"Two bolt" fittings are basically for low-temperature/low pressure dairy service

Specifically, which fittings from what vendor are you interested in ?

There is nothing to prevent you from proposing the fittings that you want at the bid-stages of a new project

MJCronin
Sr. Process Engineer

 

[LittleInch]

Pressure ./ temperature rating is my guess.

You don't exactly give us much information here.

Why do YOU think they SHOULD be used??

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[EdStainless]

There are industrial 2-bolt clamp fittings that use a groove a rolled ridge in the pipe to securely lock it in place.
Many of the simpler fittings are designed for use in accessible locations.

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P.E. Metallurgy, consulting work welcomed

 

[bimr]

What types of project are you working on? Is this municipal work? What is size and pressure of pipe?

 

[cvg]

municipal water systems use push on bell and spigot joints with ductile iron pipe all the time

 

[abot93]

I'm working on a project right now where we will be installing 30" TR Flex pipe and fittings as shown below for a cooling water makeup supply line.

 

[bimr]

The described pipe will certainly work. However, it may not be the most economical alternative.

To respond to your query, one would need to know the method of installation, whether the pipe will be underground or above ground, the expected pressure in the pipe, and the pipe length.