Water Meters

Water Meters are reliable flow measuring instruments manufactured with the highest quality standards. Each meter is standard with a gallon totalizer or an optional digital rate of flow register. The baked, powder-coated epoxy surface resists corrosive conditions and large open water passages produces low headloss. A full range of sizes for any application.

Features & Benefits

3/4″, 1″ and 1 1/2″ M Water Meters

  • Only one moving part (impeller) in contact with water for minimum wear and utmost reliability
  • Same register design as larger meters
  • Precision quality at economical prices
  • Installs horizontally

2″ WMR Water Meter

  • High accuracy down to 5 GPM
  • Threaded couplers for easy installation and removal
  • Can be installed in a vertical, horizontal, or oblique position

3″, 4″, 6″ and 8″ IRT Water Meters

  • Specifically designed for wastewater applications
  • Measuring accuracy is +/-2%
  • Open water passage resulting in very low headloss
  • High resistance to fine sand damage
  • Most economical price in the industry
  • Can be installed in a vertical, horizontal, or oblique position

3″, 4″, 6″, 8″, 10″ and 12″ WST Water Meters

  • Highest quality and reliability available
  • Double magnetic drive register
  • Low wear, long-life impeller shaft and bearings
  • Maximum protection from fine sand damage
  • Full diameter impeller
  • Can be installed in a vertical, horizontal, or oblique position


  • For wastewater applications.


  • Maximum working pressure
  • 3/4″ to 1 1/2″ – 145 psi 2″ to 12″ – 230 psi
  • Maximum water temperature: 3/4″ to 1 1/2″ – 120° F 2″ to 12″ – 140° F
  • Body Material: 3/4″ – Polypropylene 1″, 1 1/2″
  • Corrosion proof copper alloy 2″ to 12″
  • Cast iron * 1″ to 12″ meters are painted with baked, powder-coated epoxy for resistance to corrosive conditions.

Water Meters Selection

Selecting the appropriate water meter for your application involves several requirements.

  1. Water Quality
  2. Flow Range
  3. Straight Pipe Installation Requirement

The following information will assist with the selection of the right water meter for your site requirements.

1. Water Quality

The quality of irrigation water is an important consideration when choosing the right water meter for your system. Netafim has a full line of water meters for accurate measuring in good or poor water conditions.

Good Water Conditions

  • Water with minimal organic materials
  • Well water with minimal sand

Recommendation: Water meter with full diameter impeller
Full diameter of inside water passage is encompassed providing a higher degree of accuracy from very low to maximum flows.

Poor Water Conditions

  • Water with moderate organic materials
  • Well water with sand

Recommendation: Water meter with paddle wheel
Paddle wheel located at top of water passage provides free water movement eliminating clogging from debris (can also be used in good water conditions).

2. Flow Range

Water meter functionality and accuracy is dependent on minimum and maximum flow ranges. Netafim Water Meters accurately measure water from a minimum of 0.9 GPM up to a maximum of 5,500 GPM. Specific flow ranges for each size and model are listed in Selection Guideline charts.

3. Straight Pipe Installation Requirement

Turbulence is created when the water flows through fittings, elbow or pipe size transitions and in order to eliminate water turbulence, some water meters require straight pipe before and after the meter. Straight pipe installation refers to the length of straight pipe needed before (upstream of the water meter) and after (downstream of the water meter). Meters with built-in straightening vanes (WST Model) are used to reduce the minimum straight pipe requirements.




















Water Meters Registers

Netafim registers, standard and digital, are simple to read and operate while providing reliable and accurate readings. Features include:

  • Hermetically sealed – guaranteed not to accumulate moisture or fog
  • Mounted in a dry compartment – no contact with the water
  • Instantaneous readings – easy to read
  • Electrical output – driven by a magnetic coupling that activates a reed switch creating a pulsed output for communicating with control and monitoring equipment
  • Interchangeable and easily replaced – only need common tools
  • Removable – even when the meter is operating


Gallon or Acre Feet Totalizer

The standard register includes pulsed output for communicating with control and monitoring equipment. A leak indicator located in the center of the dial registers the lowest flow through the meter. If services are shut off and the dial continues to rotate, there maybe a leak in the system network.

Flows are totaled in U.S. Gallons and each dial face indicates the multiplication factor (located directly under the totalizer reading)or flows are totaled in Acre Feet with the decimal point indicated in blue on the register. Three small fractional dials measure quantities smaller than the totalizer reading.











Pulse Output – pulse reed switch is activated by a magnet and acts as a “dry contact” and can be used with both Gallon and Acre Feet Totalizer registers.


Gallon Totalizer

A sensor combines an IR light source and a light sensitive diode in one package. Signals are created when the light beam created by the IR light is interrupted by a rotating element. Includes pulse output (open collector) for communicating with control and monitoring equipment. This register requires a constant supply of DC power. Flows are totaled in U.S. Gallons based on the multiplication factors indicated on the dial face.


GPM Rate of Flow with Gallon or Acre Feet Totalizer

Combines standard digital register features with dry pulse output capabilities. Clearly displays the rate of flow and volume readings in Gallons or Acre Feet. Mounted inside an IP68 stainless steel glass encapsulated cap. Multi-line digital LCD readout displays 9 digits to Total Volume in U.S. Gallons (U.S.G) or Acre Feet and 4 digits for Rate of Flow in Gallons per Minutes (GPM). It’s programmable to a wide variety of pipe sizes. Register is interchangeable with common tools.