Hedland VA Flow meter for oil and petroleum: 1/2″, 4 ... 56 LPM

The Hedland Flow Meter is a variable area instrument (rotameter). A precision machined orifice with sharp edges is located in the piston assembly and forms an annular orifice with the preformed metering cone. The piston assembly carries a cylindrical PPS/ceramic magnet magnet magnetically coupled to an external current indicator that moves accurately, in direct response to piston movement. A calibrated spring counteracts flow in a forward direction.

This spring reduces viscosity sensitivity and allows the flowmeter to be used in any position, including inverted.

Features:

• Install in any position 360°rotatable protective cap/shell
• No electronics required to obtain a measurement
• No power straighteners or special piping required
• Relatively insensitive to shock and vibration
• Magnetic coupling eliminates the need for mechanical connections that wear, loosen and
  leaks during the functional life of competitive meters
• Temperature up to 116 °C
• Pressure up to max. 241 bar
• Accuracy ±7% full scale Repeatability +/- 1%
• Custom scaling options to meet exact application requirements