Wafer-Cone® Flowmeter By McCrometer

Wafer-ConeEngineers with small line size processes rely on the versatile Wafer-Cone Flow Meter for superior accuracy and repeatability. The space-saving unit is easy to install. It’s ideal for tight-space installations and retrofits. It requires almost no maintenance. The Wafer-Cone further reduces life-cycle costs with a long life.

The Wafer-Cone flow meter uses the same revolutionary principles as the V-Cone. Its self-conditioning means little or no upstream or downstream piping runs are required.

The Wafer-Cone features a flangeless design. The element is easily replaced to accommodate changing flow conditions. Recalibration is not required. There are no moving parts to maintain. The unit combines exceptional flexibility with high performance. The Wafer-Cone is the perfect low-cost solution to tough flow measurement problems in water & wastewater, chemical, food & beverage, plastics, pharmaceuticals, district HVAC, textile, power and oil / gas production.

No straight pipe runs
Maximum flexibility
Accuracy to +/- 1%
Repeatability to 0.1%
Machineable in any material
No moving parts, low maintenance

Click to openHow It Works:
The Wafer-Cone works on the same operating principle as the V-Cone. It is a differential pressure type flow meter with a unique design that conditions the flow prior to measurement.
  • Differential pressure is created by a cone placed in the center of the pipe.
  • The cone is shaped so that it “flattens” the fluid velocity profile in the pipe, creating a more stable signal across wide flow downturns.
  • Flow rate is calculated by measuring the difference between the pressure upstream of the cone at the meter wall and the pressure downstream of the cone through its center.
Click to openSpecifications:

The Wafer-Cone is an advanced differential pressure flow meter, similar to the V-Cone but offering greater installation flexibility and economy.

Specifications and design features:

  • Standard Accuracy: From +/-1.0% of actual flow (certain fluid and Reynolds number applications require specific calibrations to achieve this value).
  • Repeatability: +/-0.1% or better
  • Flow Ranges: 10:1 and greater
  • Standard Beta Ratios: 0.45 to 0.85, special betas available
  • Head Loss: Varies with beta ratio and DP
  • Installation Piping Requirements: Typically 1-3 diameters upstream and 1 diameter downstream of the cone are required, depending on fittings or valves in the adjacent pipeline.
  • Materials of Construction Include: 304 or 316 stainless steel; Special materials on request.
  • Line sizes: 1" to 6"
  • Process Connection: Flangeless: no welding on pressure body
  • Calibrated for customer application
  • ASME B31.3 construction available
  • Interchangable cone elements for different flow ranges
  • Sized and fluid calibrated for customer application
  • No-moving parts
  • No welding on pressure vessel
  • Options: gas or oil flow calibration
Click to openParameters

The following flow and installation parameters will help you decide whether the Wafer-Cone is suited to your specific flow measurement application.

Flow Parameters:
Types of flow measured Clean, dirty or disturbed liquid or gas flows; dry or wet gas; condensate; abrasive flows
Accuracy +/-0.5%, depending on application
Repeatability +/-0.1%
Turndown 10:1, can be up to 30:1 for some applications
Operating temperature Depends on materials of construction
Operating pressure Depends on materials of construction
Head loss Low headloss, varies with beta ratio and DP

Installation Parameters:
Pipeline sizes 1" - 6"
Process connection Flangeless: no welding on pressure body
Upstream / downstream pipe runs 1-3 dia upstream;
1 dia downstream
Interchangeability Wafer-cone elements can be easily interchanged