Turbine Flow

The Recordall Turbo Meter is ideally suited for any water application, performing with great accuracy over a wide flow range. It also has very low pressure loss, increasing system efficiency. Sizes available are 1-1/2" to 20" (DN 40 to DN 500).

Applications: Industrial water, water treatment and conditioning.

Proportional Velocity Flow Meters, PV Flow Meters from The Oilgear Company. A 'PV Meter' is a flow meter that will handle problem fluids that damage other meters. The Oilgear PV Meter (Proportional Velocity) will pass sand, grit, stones (up to 0.25" diameter in our smallest meter), bits of wood or rubber, and suspensions that could stop and damage other meters. There are no close clearances, no rotating seals, and no stuffing boxes. This simple design provides little that can go wrong. If something should malfunction, there is a simple field fix without having to remove the meter from the line.

Please use the links to the right to view additional specifications, ask a question or to request a quotation.

Here's how it works:

The Oilgear PV Meter looks like a short section of pipe, with a rotor and rotor chamber offset and perpendicular to the flow axis. The flow stream, combining the effects of a Pelton wheel and a centrifugal flow turbine drives the rotor. This combination gives a rotor speed PROPORTIONAL to the flow VELOCITY passing through the rotor chamber, over a wide range of flow rates. The combination gives the same performance and small size of a typical axial flow turbine meter, but with the lower speed and higher torque of a typical positive displacement meter.

Advantages of the PV Meter

• Large Particle Clearance
  Due to the rotor-cage construction, coupled with the offset chamber, large particles (up to 0.5" diameter in the 2" size 20 meters) can pass through the meter body without causing damage.

Readout Flexablilty

Pressure Ranges:

Meter pressure ranges vary with the end connection types. Consult the factory for specifics or send for our Bulletin 90901-C

Modifications:

Most meters are made to standard lengths but we can manufacture to meet your specific requirements such as providing oversize flange connections or fitting to precise lengths for your location.

Hoffer has recently introduced a new series of insertion style turbine meters that provides a turbine meter insertion design for liquids that can be installed in small metal, composite or plastic piping. This meter is suitable for 2", 3", & 4" line sizes and is interchangeable amongst these sizes. The Saddle Turbine Series provides an economical insertion style meter for smaller pipe diameters and addresses applications in the HVAC market, physical industry, as well as hot and cold water applications. This series covers flow ranges from 25 GPM to 1650 GPM and provides linearity of +/-2% of reading or better.

Hoffer Flow Controls supplies many "insertion" turbine flowmeters to the petroleum pipeline industry. These flowmeters are used in leak detection flow applications to check the integrity of the pipeline. This in turn prevents loss of product and, as a result, saves money and also prevents pollution to the environment. Typical accuracies of 1% may be reached with the HP Insertion Series and can approach ±0.25% depending on the type of transmitter specified with the flowmeter.

Multiple advantages including low cost, negligible pressure drop, low installation costs, minimal potential points of leakage, and avoidance of high pumping costs place the insertion meter ahead of both in-line turbines and other types of flowmeter technologies. The HP insertion can be specified for use in velocities of up to 50 fps, allowing pipeline companies to move a maximum amount of product in the shortest time possible.

Several versions of the insertion meter are available for measuring liquid and gas flow including fixed, bi-directional, and adjustable for low and high pressures. This series has a 10:1 flow turndown range. In addition, a number of process fittings may be supplied to suit the demands of various applications.

Designed for use in medium to large diameter pipes, the insertion meter may be installed or removed from an active line without interrupting service. Applications range from 4" to 72" pipe diameters with specials available upon request. For more information on the HP profile insertion flowmeters and related electronics please contact Hoffer Flow Controls, Inc.

The Hose Series turbine flowmeters are ideal for use in liquid applications where the flowmeter will be installed and fitted to hose or plastic tubing. The Hose Series is available in sizes ¼" through 3" and provides extremely accurate flow rate measurement of +/-.5% of reading over the linear flow range. End connections are supplied either barbed or beaded. Barbed end connections would be selected for permanent installation when the flowmeter is intended to stay once installed. Beaded hose end connections are meant for test installation or applications which are expected to be moved around from time to time. Flow Rate Indicators/Totalizers and other electronic support equipment are available to accompany this series.

The BERMAD 900 Series is a unique product line that integrates a vertical-turbine water meter and pilot-controlled, diaphragm-actuated hydraulic control valve in a single-valve body.

The 900 Series provides a full spectrum of water-metering functions - from simple visual readout, through dose control and pulse output for computerized data capture and control - while simultaneously allowing for numerous control-valve operations, such as electric remote control, pressure, level and flow control.

Ranging in sizes from 1.5" through 8", the 900 Series is specifically designed for water-metering and control applications in agriculture and landscape irrigation and in municipal and industrial water-supply systems.