Liquid Sealed Vane Wheel Water Meter It is a liquid sealed water meter for residential application in sizes 15mm-50mm for cold meter.
FEATURES Mechanical transmission movement equates to maximum reliability . The chamber of the rollers is liquid filled sealed for protecting the inner parts from the moisture and dust penetration. Sealed wet dial register . Internal strainer, inlet strainer. External regulating device, particularly suited in lower quality water.
Standards Compliance ISO 4064 Directive 2004/22/EC on measuring instruments; the European Standard EN14154+A1+A2: Water Meter; the International Organization of Legal Metrology OIML R-49: 2006(E)
Optional Features Several lengths and connections available on request Non return Valve
Working Conditions Water temperature: ≤50ºC Water pressure: ≤1MPa or 1.6MPa optional 10bar or 16bar optional)
Installation requirements The meter should be installed in horizontal position with the register face upwards. Pipeline must be flushed before installation. The meter should be constantly full of water during operation. The meter must be installed with the direction of the flow as indicated by the arrow cast in the meter body.
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 Qs is: cold water meter ±2%.