Zenner FHZ30 Hydrant Meter 2-1/2 in FNST x MNST, US Gallons

ZENNER FHZ Fire Hydrant Meters

INTRODUCTION: FHZ Fire Hydrant Meters are designed to measure a wide variety of cold potable water flows from fire hydrants where flows are in one direction.  These Meters are lightweight portable units designed for temporary installations.   

OPERATION: Water flows through the turbine section causing the rotor to turn proportionately to the quantity of water flowing through the meter.  A drive magnet transmits the motion of the rotor to a driven magnet located within the hermetically sealed register.  The magnet is connected to a gear train which translates the rotations into volume totalization displayed on the register dial face.  The only moving parts in the meter are the rotor assembly and vertical shaft. 

CONSTRUCTION: FHZ Fire Hydrant Meters consist of several basic components: lightweight aluminum main case, turbine-type measuring element assembly, sealed register, aluminum cover plate, stainless steel hardware, brass lid assembly, aluminum or brass swivel and nipple, aluminum or stainless steel handles, etc.  The measuring element assembly includes the rotor assembly, vertical shaft, and a calibration vane which eliminates the need for calibration change gears.

  
RESTRICTOR PLATE: The standard FHZ25 Fire Hydrant Meter has a permanent flow restrictor machined into the main case.  This limits the maximum flow of water through the meter and protects the measuring element from being overrun when the meter discharges.  The restrictor plate may be enlarged for specific utility requirements.

   
MAINTENANCE: FHZ Fire Hydrant Meters are engineered and manufactured to provide long-term service and operate virtually maintenance-free.   If maintenance is necessary, the measuring element can be removed from the main case.

CONFORMANCE: FHZ Fire Hydrant Meters are tested and comply with AWWA C701 Class II performance standards.  These Meters comply with the lead-free provisions of the Safe Drinking Water Act and are certified to NSF/ANSI Standards 61 and 372.  

 
STRAINERS: FHZ Fire Hydrant Meters come with an inlet strainer built into the Swivel.