Technical spec:
Woltman Type, Inferential, Super dry dial, straight reading in KILOLitres,
Horizontal Flow, Magnetically Coupled water meter conforming to ISO 4064(1)
Class 'B' Standard, most suitable for horizontal line connections. Performs
accurately up-to a maximum water temperature of 95° Celcius.
Operations:
AQURA Woltman HOT Water meter comprises a rotor with helical blades
inserted axially in the flow. The Working mechanism is the same as that of
Cold Woltman Water Meter except that All internal spare parts of the
mechanism are made of a special plastic like Teflon, PTFE to ensure the parts
withstand without any deformation or wear and tear due to high temperature of
90 degree Celcius. Water flows through the inlet of the body and enters the
measuring chamber and rotates the horizontal axis propeller. The velocity and
the number of performed turns of the propeller are proportional to the volume
of water passing through the meter. A drive magnet transmits the motion of
the propeller to a driven magnet located in the sealed dial register. The driven
magnet is connected to a gear train which translates the turbine rotation into a
volume displayed on the counters in a dry dial register. Special shape of its
inlet and outlet bearing is counteracting the natural hydraulic thrust applied on
the impellor and preventing any downstream pivot wear. Thus meters are able
to withstand high flows without impacting low flow accuracy. At the Low Flow
rate until the transitional flowrate the meter performs at an accuracy level of
3% of total volume instead of 2%.
Standards:
Conforms to ISO 4064 (1) Class 'B'. (Except Error% at Qmin- 3%)
Sizes:
50mm, 80mm, 100mm, 150mm.
Features:
- Removable and interchangeable measuring unit helps in easy
installation and maintenance without recalibration.
- All internal spare parts of the mechanism is made of a special plastic
like Teflon / PTFE to ensure the parts withstand without any
deformation due to high temperature of 90 degree Celcius.
- The bodies are produced with high quality GG25 grey cast iron and are
coated inside and outside with a potable water approved epoxy coating.
The Red painting is also special to ensure No degradation due to high
temperature exposure. This reliably protects the meter from corrosion
and ensures that the potable water remains safe even at a high
temperature.
- The hermetically sealed dial register is protected by a metal protective
lid, prevents breakage and readability issue even in the worst
environmental conditions.
- Star wheel in the middle shows turbine movements at the lowest flows
and can be used to detect leakage.
- Improved readability: Dials can be rotated 360 for convenient meter
reading.
- Its proven technology combines good quality metrology properties and
great endurance.
- Magnetic transmission propeller rotation keeps the register completely
separate from water, only the propeller and transmission shaft gets in
contact with water.
- Bodies equipped with flanges according to the standards DIN 2501 and
ISO 7005 PN10/PN16 respectively.
- Inlet and outlet bearings are specially designed to withstand natural
hydraulic thrust. It prolongs the life of the moving parts and end result is
long term accuracy of water meter.
- Optional Pulse output facility can be provided a 10 ltr, 100 ltr or 1000ltr/
pulse for advanced AMR Application.
- Remote display units can be connected for reading from hard-to-read
locations.
