Fixing 2 no of 2 inch meters

[meandu]

I want to fixed 2 no of 2 inch meters. One for fire fighting tank of 1600 gal and one for domestic usage for a tank capacity of 8000 gal.

The pressure at the tapping point from the water main is 41 psi. and both the tank height is 40 ft. The pipe use
is 2 in ABS pipe.

How do I know that the pressure is enough to support the 2 no of 2 inch meters?

Thank you for anyone who answer.

 

[hj]

I am not sure what you mean by "2 no of 2 inch meters", or what you are referring to by "How do I know that the pressure is enough to support" them. The pressure of the water will only affect the volume of water delivered.

 

[Sponsor]

 

[meandu]

Thanks for the quick reply.

May be my question should be whether a 41 psi water pressure is enough to support fixing 2 nos of 2 inch meter (one for fire fighting tank and one for domestic tank) to deliver water up to a height of 40 ft by using 2 inch ABS pipe?

 

[TJanak]

hj, I believe "2 nos of 2 inch meters" means he has 2 - 2" water meters, with each needing to deliver water up to a height of 40' using 2" ABS pipe for two holding tanks. Seems to me that at 40' height you would have 22 psi not accounting for friction. But this sounds like a water tower scenario so volume is equally important.

 

[meandu]

Thanks Travis,

That's is what I meant. Can the 41 psi pressure enough to deliver water up to the two separate tank at 40' height ?

 

[Cwhyu2]

For every foot of rise you lose 1.7 lbs of pressure.

 

[LLigetfa]

For every foot of rise you lose 1.7 lbs of pressure.

Actually, it's .433 PSI per foot.

 

[meandu]

So for every foot rise ,there is a pressure lost of .433 psi. For 40 ft it's 17.32 psi. For 2 pipes its 34.64 psi.
So for a pressure of 41 psi it can deliver water up the two tanks, am I correct ?

 

[LLigetfa]

The number of pipes don't factor in the equation. It's 17.32 PSI loss regardless of whether you use a 1 pipe or 10. More pipes or bigger pipes provide more GPM, not PSI.

 

[meandu]

Thank you for enlighten me