What's Volumetric piston water meter and how it works?
Installed in a pipeline, consisting of a chamber of known volume that is filled and discharged one by one, and a water meter that is fluid-driven, or a quantitative discharge meter.
Volumetric water meters generally use a piston structure.
Unlike a speed water meter, a volumetric water meter measures the volume of the actual fluid passing through the water meter. The most vivid metaphor is like the kind of revolving door in front of a large supermarket or hotel. It can only be rotated in a fixed direction. Every time a certain angle is turned, the fluid passes through the water meter to the other side. Therefore, volumetric water meters are more accurate than speed meters. The velocity meter measurement error will have an error of ±2% depending on the fluid velocity, while the volumetric water meter error can be controlled to ±0.5% or lower.
In terms of use, volumetric water meters are generally used in precision industrial enterprises or test places because of their accurate measurement results; and velocity water meters are generally used for normal domestic industrial water use.
In terms of price, volumetric water meters are generally much more expensive than velocity meters(single jet,multi jet ,woltman type ).
Main Features:
Not affected by an external magnetic field
Ensures high sensitivity and accurate registration throughout a wide flow range.
High measuring accuracy, the starting flow of the meter is 2 L/h or less;
Installed in vertical,horizotnal or incline position
Magnetic drive , lower transimission resistance.
Sealed dry dial register ensures clear reading.
Internal strainer, inlet filter opitonal
Brass body or plastic body is available to choose
Remote transmission can be equiped
Liquid sealed or Dry-dial register, keeps clear reading for long time;
Reed Switch can be supplied on demand ,1L/pulse ,10L/pulse ;
ISO4064 water meter confirmity
buil-in non-return valve availalbe
Wide range accurancy from Class A to D
Working condition:
Water temperature≤50℃ (Hot water meter≤90℃)
Water pressure≤1MPa (PN: 1.6MPa/16bar)
△P≤0.1MPa
Installation requirements
Rinse the pipeline prior to install
keep the water meter tank up during operation
