Feature
• Ensures high sensitivity and accurate registration throughout a wide flow range.
• Mechanical transimission movement equates to maximum reliability.
• Liquid-sealed register.
• Easy reading and long term clear reading.
• Low starting flow rate.
• Internal non return valve.
• Internal strainer.
• Plastic body.
• Can be equipped with reed switch option.
ISO4064 Standard:
Maximum Permissible Error:
• In the lower zone from Qmin inclusive up to but excluding Qt is ±5%
• In the upper zone from Qt inclusive up to and including Qmax is ±2%
AWWA C700 Standard:
Maximum Permissible Error:
• In the lower zone from Qmin inclusive up to but excluding Qt is ±3%
• In the upper zone from Qt inclusive up to and including Qmax is ±1.5%
Application
• Measuring the volume of cold potable water passing through the pipeline.
Working Conditions
• (Cold type)Water temperature:≤50℃; (Hot type)Water temperature:≤90℃
• Water pressure:≤1.6MPa
Construction
• The meter mainly consists of a lower body,a measuring unit,a transmission assembly,a register,a upper body and others.
• The lower body secures the internal parts.
Working Principle
• The working principle is based on a calibrated chamber of known capacity and a rotary piston activated by the energy of the flow passing through.
• The piston rotates while the chamber fills up and empties with a constant volume of water.
• By counting these cycles,the register indicates the total volume that has been register.
Indication
• Cubic meters(m³) and U.S.gallon(USG) available.
• Technical data conforms to AWWA C700 Standard.
• With every water meter,there will be with two couplings,two nuts,two coupling gaskets and two meter spud thread protectors.
• Note:To protect the meter spud threads,store the meter with thread protectors in place.
Installation
• Attention should be paid that the cold water meter must not be used for hot water and caustic liquid.
• The nominal diameter of water meter should be selected according to the volume of water passing through the pipeline.
• The meter can be installed in any position:
The meter must be installed with the direction of the flow as indicated by the arrow cast in the meter body
In order to keep the water meter in good working,the pipeline should be clear up before install the meter.
The valves must be installed in the front and the back of the water meter.
The water meter should not be installed under the surface of water.