Bird Screen on PSV outlet Required?
Bird Screen on PSV outlet Required?
(OP)
Is it required to install a bird screen (wire mesh to prevent bird next inside of PSV outlet pipe) on the outlet of the PSV discharge by any type of code?
Thanks,
Ken
Thanks,
Ken





RE: Bird Screen on PSV outlet Required?
I guess what you actually are asking is: 'who is going to pay for this extra, but obviously sensible added protection, not specified in the original contractual papers?'
Anyway, this will of course be depending on where you are in the world.
It might be defined put under general human safety rule, as a bird nest could obstruct the outlet capacity and give a dangerous situation.
I believe else that 'no' is the answer, the nearest comparison I can remember is the often general description of hygienic protection of water reservoirs openings against animal life.
RE: Bird Screen on PSV outlet Required?
RE: Bird Screen on PSV outlet Required?
RE: Bird Screen on PSV outlet Required?
I would like to at least require them to install these bags.
Thanks
RE: Bird Screen on PSV outlet Required?
http://www.oseco.com/pages/products/holders.html
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http://www.weathercap.com/weathercap.htm
RE: Bird Screen on PSV outlet Required?
RE: Bird Screen on PSV outlet Required?
The basket is a conical shape, topped by a "chinaman's hat" so that water doesn't pool. A metal ring at the base connects to the discharger pipe. A wider diameter ring connects to the "hat". 5 plate metal strips connect the two rings. Wire mesh is strung around the lot.
Someone calculated that a surface area of the cone/basket of >>twice that of the discharge pipe opening would be sufficient to ensure no effective obstruction to discharge relief path.
We would often find nests and dead birds inside the discharge pipe - but nothing ever big enough to obstruct a real SV lift.
Cheers
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"Life! No one get's out of it alive."
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RE: Bird Screen on PSV outlet Required?
The more you learn, the less you are certain of.
RE: Bird Screen on PSV outlet Required?
This makes me giggle like a damned fool.
RE: Bird Screen on PSV outlet Required?
The bars would not affect the flow but would stop birds perching. Say 6"-8" stand out above the exit and at 3" centres around the circumference. The stand out would need to be high enough to stop the birds scaffolding out for a nest by putting branches inbetween.
You could sharpen bars to to a point if you were really kean. A bit like the man traps built by the viet cong but up in the air rather than hidden in the ground.
Come to think, you could use the same design as for stern wheeler chimneys. I would not be surprised if those fancy chimney terminations had a practical use after the boilers had cooled down. Who says engineers can't be a creative. I am told the problem with sea birds is that they sit on such edges to eat their fish. They either tip over backwards when they swallow the fish or have problems with CofG combined with "nap after dinner" syndrome.
RE: Bird Screen on PSV outlet Required?
The more you learn, the less you are certain of.
RE: Bird Screen on PSV outlet Required?
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"Life! No one get's out of it alive."
"The trick is to grow up without growing old..."