1. Catalogs
  2. Walchem
  3. WFM Water meter

WFM Water meter

WFM Water meter

WFM Water meter

Product catalog summary
Overview: The WFM Series water meters are known for their simple design, versatility, and accuracy in measuring low-quality water. They utilize a multi-jet principle, which is an internationally recognized standard. These meters are suitable for cold water applications, particularly in cooling towers and boiler conductivity controllers, but are not certified for drinking water.
Design and Functionality: The impeller is positioned within a ring of jets, with separate levels for inlet and outlet jets. A gear train drives the register totalizer dials. For pulse output, a magnet replaces one of the pointers, detected by an external sensor. Pulse rates can be adjusted in the field without special tools.
Sensor Options: The meters offer two sensor options: a two-wire reed switch that provides a dry contact closure without power, and a three-wire Hall effect sensor that requires power but offers long-lasting service.
Specifications: The meters are available in sizes ranging from 3/4” to 2” NPT, supporting flow rates from 0.22 to 132 GPM. They can operate at a maximum pressure of 150 psi and a temperature of up to 105ºF (40ºC). The body is made of cast bronze, with engineered thermoplastic internals and an Alnico magnet.
Pulse Rates and Dimensions: Various pulse rates are available, and the meters come in different dimensions depending on the size. The shipping weight ranges from 7 to 18 lbs.
Additional Products: Walchem offers a range of products including the WebMasterONE® for remote monitoring and control, Iwaki metering pumps, and the WIND WebMaster Industrial Water Controllers. These products integrate advanced sensing, instrumentation, and communication technologies for effective water treatment solutions.
Contact Information: Walchem, Iwaki America Inc., Five Boynton Road, Hopping Brook Park, Holliston, MA 01746, USA. Phone: 508-429-1110. Website: www.walchem.com.
See more

Catalog excerpts

WFM Water meter-1

Water Meter Contactors WFM Series WFM Series water meters have earned a reputation for design simplicity, wide range of applications and accuracy in low-quality water. The impeller is centered in a ring of jets, with inlet jets on one level and outlet jets on another. A gear train drives the register totalizer dials. For pulse output, one of the pointers is replaced by a magnet, which is detected by an encapsulated sensor attached to the outside of the lens. Pulse rate is determined by the dial on which the magnet is placed and by the number of sensors (single or double). Changing the pulse rate requires no special tools and can be done in the field. The WFM Series uses the widely recognized multi-jet principle, which has been accepted as an international standard for many years. These meters are available with either a two-wire reed switch, or a solid state, threewire Hall effect sensor. The Hall effect sensor provides long lasting service and requires power. The reed switch provides a dry contact closure and does not require power. The WFM meters are typically used in cold water applications with cooling tower or boiler conductivity controllers and metering pumps for chemical feed. They do not have NSF Standard 61 certification for drinking water applications. Simple and dependable multi-jet design. Available in 3/4”, 1”, 1½” and 2” NPT sizes for flow rates from 0.22 to 132 GPM. A wide range of pulse rates for a variety of applications. Reed switch or Hall effect sensor options. * Not approved for drinking water. PULSE RATES AVAILABLE 1” B (Body with couplings)

 Open the catalog to page 1
WFM Water meter-2

WebmasterONE® size sensor type sensor connection WebMasterONE® is the most powerful online cooling tower/ boiler controllers in the water treatment industry. WebMasterONE® couples a multi-I/O platform with Walchem’s analytical sensors and extensive communications technologies. The result is the ability to remotely monitor and control your process from any computer, anywhere in the world, with just a standard web browser. pulse type Metering Pumps Iwaki metering pumps are designed for a broad range of applications, and are manufactured to the highest quality standards that exceed even the toughest...

 Open the catalog to page 2

All Walchem catalogs and technical brochures

  1. ADV series

    2  Pages

  2. WPH/WDP

    4  Pages

  3. WECT/WEDT

    4  Pages

  4. WCT/WDT

    4  Pages

  5. EJ

    2  Pages

  6. W100P

    4  Pages

  7. W600

    4  Pages

  8. HRP Series

    2  Pages

  9. WCU/WNI410

    4  Pages

  10. WDIS410

    4  Pages

  11. Paddlewheel

    2  Pages

  12. Level Sensor

    2  Pages

  13. WIND Brochure

    6  Pages

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.