Water Meter Size Vs Pipe Size

Assume average pressure 20 100psi.

Water meter size vs pipe size.

A standard meter coupling for a 5 8 water meter has male npt pipe threads on one end and a swivel meter coupling nut with 1 2 awwa meter threads on the other. It is fairly common for the meter to be one size smaller than the feed pipe to the house. Appliances appurtenances and fixtures not referenced in the table below shall be permitted to be sized by reference to fixtures having a similar flow rate and frequency of use. Size water line videos below.

About 12 f s flow velocity. Larger diameter water lines create less friction. Water supply fixture units wsfu and minimum fixture branch pipe sizes. Size water line tips.

About 6 f s flow velocity also suction side of pump. Velocity of water flow in a pipe. The pipe is 12 feet long and the difference in height between the beginning and end points of the pipe is equal to 3 feet. This is because the larger size water meter would be unable to accurately measure at low flow rates.

A larger meter size than what is required could mean that a residential customer will pay less each billing period and the utility profits would be undermined. The other option which is far from accurate but is safe for design is to determine the size of the pipe leaving the meter and assume the meter is one size smaller. 4 the listed minimum supply branch pipe sizes for individual fixtures are the nominal i d pipe size. Assume gravity to low pressure.

These use meter couplings and gaskets referred to interchangeably as 5 8 or 1 2. Assume high pressure peak flow. 8 inch diameter water main supplies. 5 for fixtures or supply connections likely to impose continuous flow demands determine the required flow in gallons per minute gpm l s and add it separately to the demand in gpm l s for the distribution system or portions thereof.

5 8 meters are generally used on older homes where the service tubing size was 1 2. 5 8 3 4 1 1 1 2. Divide the diameter by 2 to find the radius of the pipe. Water line size determines the amount of water flowing from a pipe.

Typical water meter sizes are. The listed fixture unit values represent their load on the cold water building supply. Let s use the pipe flow calculator to determine the velocity and discharge of a plastic pipe 0 5 feet in diameter. About 18 f s flow velocity.

Bigger is better if you want lots of water in a short time.