New York Codes, Rules and Regulations › Title 16 - DEPARTMENT OF PUBLIC SERVICE › Chapter V - WATERWORKS CORPORATIONS › Subchapter A - SERVICE › Part 500 - Meter Approvals; Testing Of Meters; Reports Of Testing › Section 500.6 - Registration of meters

Current through Register Vol. 46, No. 28, July 10, 2024
(a)
Displacement type.
The registration on the meter dial shall indicate the
					 quantity recorded to be not less than 98.5 percent nor more than 101.5 percent
					 of the water actually passed through the meter while it is being tested at any
					 rate of flow within the limits specified herein under "normal test flow
					 limits". At the "minimum test flow" rate to the lowest normal test flow rate as
					 set forth in the following table, the meter shall register not less than 95
					 percent and not more than 101 percent of the water that actually passes through
					 it. The meter shall show proper sensitivity when tested at the rate of flow set
					 forth under "minimum test flow" as provided in section
					 500.5  of this Part.
Size (inches)
Normal test flow
								  limits (gallons per minute)
Minimum test flow (gallons per
								minute)
1/2 .......
1 to 15 .......
1/4
1/2
															×
															3/4 .......
1 to 15 .......
1/4
5/8
								.......
1 to 20 .......
1/4
5/8
															×
															3/4 .......
1 to 20 .......
1/4
3/4 .......
2 to 30 .......
1/2
1 .......
3 to 50 .......
3/4
1 1/2 .......
5 to 100 .......
11/2
2 .......
8 to 160 .......
2
3 .......
16 to 315 .......
4
4 .......
28 to 500 .......
7
6 .......
48 to 1,000 .......
12
(b)
Current type.
The registration on the meter dial shall indicate the
					 quantity recorded to be not less than 98 percent nor more than 102 percent of
					 the water actually passed through the meter while it is being tested at any
					 rate of flow within the limits specified herein under "normal test flow
					 limits". The meter shall show proper sensitivity when tested at the rate of
					 flow set forth under "minimum test flow" as provided in section
					 500.5  of this Part.
Size (inches)
Normal test flow
								  limits (gallons per minute)
Minimum test flow (gallons per
								minute)
1 1/2 .......
12 to 100 .......
11/2
2 .......
35 to 100 .......
30
3 .......
40 to 250 .......
35
4 .......
50 to 500 .......
45
5 .......
75 to 90 .......
70
6 .......
90 to 1,200 .......
85
8 .......
100 to 1,500 .......
90
10 .......
125 to 2,000 .......
110
12 .......
150 to 2,800 .......
140
(c)
Compound type.
(1) The registration on the meter dial shall
				  indicate the quantity recorded to be not less than 97 percent nor more than 103
				  percent of the water actually passed through the meter while it is being tested
				  at any rate of flow within the limits specified under "normal test flow
				  limits", except in the registration of flows within the "changeover" from
				  by-pass meter to mainline meter. The registration at these rates of flow shall
				  be not less than 90 percent and not more than 103 percent. The difference in
				  the rate of flow at the beginning and at the end of the "changeover" shall not
				  exceed the figures given in the following table:
Size (inches)
Gallons per minute
1 1/2 .......
20
2 .......
20
3 .......
30
4 .......
30
6 .......
40
8 .......
75
10 .......
100
12 .......
620
(2) The beginning of the "changeover" is when
				  the accuracy of registration falls below 97 percent, due to the automatic valve
				  mechanism, and the end of the "changeover" is when the accuracy of registration
				  again reaches 97 percent.
(3) The
				  meter shall show proper sensitivity when tested at the rate of flow set forth
				  under "minimum test flow" as provided in section
				  500.5  of this Part.
Size, main meter
								(inches)
Normal test flow
								  limits (gallons per minute)
Minimum test flow (gallons per
								minute)
1 1/2 .......
2 to
100 .......
1/2
2 .......
2 to
160 .......
1/2
3 .......
4 to
320 .......
1
4 .......
6 to
500 .......
11/2
6 .......
10 to
1,000 .......
3
8 .......
16 to
1,600 .......
4
10 .......
32 to
2,300 .......
8
12 .......
32 to
3,100 .......
14