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Oval Gear Series Positive Displacement Flowmeter
Brand: Hoffer Flow ControlsThe unique design of Hoffer’s Oval Gear meter incorporates two SMOOTH (toothless) oval gears 90 degrees out of phase.
The measurement gears are held together by two timing gears.
The timing gears have a pitch diameter equal to the outside diameter of the measurement gears.
The flow through the meter measurement chamber follows the path of least resistance.
Therefore no liquid passes through the center cavity between the measurement gears.
Features- Patented toothless oval gear construction. U.S. Patent 5,992,230
- High accuracy
- Compact design
- High resolution electronic output
- Stainless steel ball bearing, self-lubricating
- 316 stainless steel with brass thrust plate construction (standard)
- No special gears needed for high viscosity
- Linearity unaffected by viscosity changes
- 1" Male NPT End Fitting (Standard)
Specifications
Brand
Approvals & Certifications
- ATEX: EX II 2 GD Ex d TD IIC, IP66/68
- CE
- CSA: Class I, Div. 1, Groups A, B, C, D, Class II, Div. 1, Groups E, F, G, Class III, Type 4X EX D IIC, Class I, Zone 1, IP66
- FM: Class I, Div. 1, Groups A, B, C, D, Class II/III, Div. 1, Groups E, F, G, Type 4X
- IEC EX D IIC IP68
- PED
Bearing Material
- Stainless Steel
Enclosure, Body Material
- 316 Stainless Steel with Brass Thrust Plate Construction (Standard)
Environmental Protection
- IP66
- IP68
Flange Material
- 316 Stainless Steel
- Carbon Steel
Flange Size - 1” (DN 25)
- 1” (DN 25) - 150#
- 1” (DN 25) - 300#
- 1” (DN 25) - 600#
- 1” (DN 25) - 900#
NPT Connection
- 1” NPT Male
O-Ring Material
- Viton
Operating Temperature
- -28.9° to 190.6° C (-20° to 375° F)