Liquid Controls Gear Plate Selection Guide - Manual (Page 3)

3
Gear plates are used to convert a meter’s output to the desired unit of measure; for example, 1/10 or whole US
gallons, 1/10 or whole imperial gallons, liters, cubic meters, barrels, pounds, etc. To facilitate the changing of the unit
of measure desired, the gear plate is attached to the base of the large numeral counter with two screws. To make
proper gear plate selection, you will need to know:
1.
Meter size
2. Unit of measure required
3. Packing gland ratio
4. Meter register stack components (preset, TVC, counter, ticket printer, etc.)
• M-5, M-7, and M-10 meters supplied standard with 1/10 gallon, Pattern 10 gear plates.
• M-15 and M-25 meters supplied standard with 1/10 gallon, Pattern 20 gear plates.
• M-25, M-30, M-40, M-60, and M-80 meters supplied standard with Whole Gallon, Pattern 10 gear plates.
• When deviating from above standards, see appropriate meter price list for correct pricing.
• Any meter model incorporating a Temperature Volume Compensator requires an even centered gear plate (Pattern
10, 30, or 50).
• Meter models supplied with Class 10 and 12 construction are configured using a Pattern 30 gear plate.
• Consult Customer Support Department at the factory for gear plate ratios not listed on pages 15 through 23.
Gear Plate Selection Guide
General Meter Data
Meter Size Revolutions per
gallon of the
blocking rotor
M-5 (New Style) --------------------- 4.0790
M-5 (Old Style) --------------------- 12.2370
M-7 ------------------------------------- 5.555
M-10 ----------------------------------- 5.555
M-15 ----------------------------------- 2.058
M-20* ---------------------------------- 2.058
M-25 ----------------------------------- 2.058
M-30 ----------------------------------- 0.742
M-40 ----------------------------------- 0.742
M-60 (New Style) ------------------- 0.3983
M-60 (Old Style) --------------------- 0.2545
M-70 ----------------------------------- 0.4024
M-80 ----------------------------------- 0.3983
M-120 ---------------------------------- 0.1579
Meter Size Revolutions per
gallon of the
blocking rotor
MS-5 ------------------------------------ 12.2370
MS-7 -------------------------------------- 5.555
MS-15 ------------------------------------ 2.058
MS-25 ------------------------------------ 2.058
MS-30 ------------------------------------ 0.742
MS-40 ------------------------------------ 0.742
MS-75 ------------------------------------ 0.2545
MS-120 ----------------------------------- 0.1579
*M-20 meter uses only 2:1 packing glands. Consult Customer Service Department at the factory for proper gear plates.