Grinnell Spring Hanger Catalogue 1

DBreyer ...

The Grinnell company became ANVIL a number of years ago ... You are talking to the same people

I have dealt with powerplant spring hanger repair and replacement in the past.

Some Questions:

------ Is this a constant or variable spring hanger ? - Have you checked for any failed/corroded spring coils ? - Can you see the coils ?

------ Has this hanger been "topping" or "bottoming" out at piping operating temperature ?

------ Are the adjacent spring hangers on the system in good repair or at the limits of their travel ? - do they have broken coils ?

------ Is this hanger on a steam piping system ? Is the piping clamp/clevis and other hardware made of alloy steel ? Are the coils coated ?

I suggest that you talk directly with the sales engineer at ANVIL and send him pictures of your hanger problem

Please post pictures of the hanger on this thread.

I also suggest that you cut the corroded can off of the hanger, inspect and count the spring coils and relay this information to ANVIL

More details and pictures of this hanger will help you ... please post them

This is an example picture of an old spring hanger with the can removed and showing failed coils:



MJCronin
Sr. Process Engineer

This is kind of a fun read .....


And for those fans of exploding piping, death and dismemberment..... you simply cannot beat:


Any comments anyone ????

MJCronin
Sr. Process Engineer

MJCronin,

to answer your questions:
Some Questions:

------ Is this a constant or variable spring hanger ? - Have you checked for any failed/corroded spring coils ? - Can you see the coils ? -> variable spring, yes- yes

------ Has this hanger been "topping" or "bottoming" out at piping operating temperature ? -> No

------ Are the adjacent spring hangers on the system in good repair or at the limits of their travel ? - do they have broken coils ? ->no additional hangers here. The line I am looking at connects to a tank and this is the 1st support from the tank nozzle -> Movements are due to tank settlement and nozzle rotation.

------ Is this hanger on a steam piping system ? Is the piping clamp/clevis and other hardware made of alloy steel ? Are the coils coated ? -> No, no, no

I suggest that you talk directly with the sales engineer at ANVIL and send him pictures of your hanger problem -> will do, I was not sure which company actually took over from grinell as many comanies use the same numbering system.

Please post pictures of the hanger on this thread. -> One photo is attached.
I also suggest that you cut the corroded can off of the hanger, inspect and count the spring coils and relay this information to ANVIL

More details and pictures of this hanger will help you ... please post them

This is an example picture of an old spring hanger with the can removed and showing failed coils: Thanks for the additional information

MJC said:

Any comments anyone ????

Click to expand...

Excellent post. Esp. the link to May's article. I have a similar document, albeit only with photos and less explanation, from Lisega, on plant walkdowns they did and what they found (typically). Im not sure if it can be shared, but such documents always hold some interesting examples to share with others.

Huub
- You never get what you expect, you only get what you inspect.