HOFFER FLOW CONTROLS was incorporated in 1969 in the state of New Jersey. For more than fifty years Hoffer Flow Controls has been designing and manufacturing quality turbine flowmeters and related process instrumentation. Our initial experience was in the field of cryogenic flow measurement. Today our reputation in this field is synonymous with quality.
The development of the modern turbine flowmeter can be traced back to David Potter, founder of Potter Aeronautical. Potter pioneered the development of the turbine flowmeter for the Navy in the 1940’s. The initial application for the Potter turbine flowmeter was in fuel flow measurement for Navy aircraft. Today fuel flow continues to be an ideal application for the turbine flowmeter.
Throughout the 1950’s and early 1960’s business at Potter Aeronautical of Union, New Jersey thrived. Potter held exclusive patents on the design of the turbine flowmeter. Potter Aeronautical began licensing the turbine flowmeter to other companies, both domestic and internationally. At the time Potter Aeronautical closed in 1968, its’ production manager was a young engineer named Ken Hoffer. Ken then founded his own turbine flowmeter company… Hoffer Flow Controls.
For the first ten years in business Hoffer Flow Controls specialized in cryogenic flow measurement systems. Hoffer pioneered the use of the turbine flowmeter in cryogenics.
During the late 1970’s we began to diversify into other markets, including oil patch, chemical and petrochemical, aerospace and energy measurement. More recently, we have introduced our products to the European Common Market, Central and South America and the Far East.
Today Hoffer Flow Controls manufactures high precision turbine flowmeters, not only for the cryogenic industry but is a world leader in turbine flowmeter technology for the measurement of clean liquids and gases throughout the processing industries.
Our standard Teflon® turbines are supplied with PTFE for all wetted parts manufactured from blue-dyed Teflon® with the exception of the shaft which is normally manufactured from poly-ether-ether-ketone (PEEK) and the bearing and thrust washers which are a PEEK/PTFE blend. Please confirm PEEK is compatible with the intended service fluid. Other options are available.
Magnets are embedded in Teflon® blades of rotor assembly. Within the Hoffer turbine flowmeter, the flowing media engages a vaned rotor causing it to rotate at an angular velocity proportional to flow rate. The pickup coil senses the spinning motion of the rotor through the housing and converts it into a pulsing electrical signal. Summation of the pulsing electrical signal relates directly to the total flow, while the frequency is linearly related to flow rate. Available with flanged end fittings including RF per ANSI and DIN types. Size selections available are ¼” to 3″. The Teflon® Series offers a linearity of ±1% of reading and a repeatability of ±0.1% of reading. The temperature rating on the Teflon® Series is 35ºF minimum and 125ºF maximum. Maximum pressure is 300 PSIG.
- Recommended for corrosive service and ultrapure water flow applications.
- Suitable for clean liquid service at one centistoke.
- Flow rate capability from 0.35 to 485 GPM, (¼” through 3″ sizes).
- Provides frequency output.
- Mates with RF flanges per ANSI or DIN flanges.
- Linearity: ±1%.
- Repeatability: ±.1%.
- For customers measuring the flow of corrosive liquids, ultrapure water and chemical applications.
- Linearity: ±1% of reading over linear flow range.
- Repeatability: ±0.1 of reading over repeatable flow range.
- Temperature & Pressure Limitations:
35ºF minimum and 125ºF maximum temperature range acceptable.
300 PSIG pressure limitation.
- Pressure Drop: Less than 4 PSI at maximum linear flow rate.
- Output: 20 mV RMS or greater into a 10 K ohm load at a minimum flow rate.
NOTE: A complete line of flowmeter signal conditioners (preamplifiers) and flow computers are available. Consult with the applications group at Hoffer for additional information.
Reference : hofferflow.com