Positive Displacement

High accuracy and general versatility: ULTRA OVAL

      The OVAL flowmeter, a positive displacement meter, consists of a pair of noncircular gears (oval rotors). It offers a wide range selection of sizes and specifications to meet the exact operating requirements of individual customers (i.e., flow rate, liquid kind, pressure and other factors). A complete line of integral registers, pulse generators, receiving instruments, and accessories are available for various types of application such as custody transfers, process controls, and energy or resource savings. The flowmeters have been used in almost every part of the industry over the years.

Precision mechanical engineering has been successfully combined with advanced electronics in the ULTRA OVAL to achieve the most desirable characteristics of the PD flowmeter. Its intelligent electronic register has substantially become compact in size and weight; an external magnet selects display modes to make it more user friendly than ever before. Parameter review, setup, and self- diagnostics are accessible through communications with the Smart type. You can choose from a broad selection for your sophisticated metering job.


Type Standard High temp. service Low temp. service
Nominal size 10 to 50mm 20 to 50mm
Process connection JIS 10, 16, 20, 30K RF/ANSI (JPI) 150, 300 RF flange
Flow range 0.2L/h to 44m3/h 0.05 to 44m3/h 0.03 to 44 m3/h
(Liquids: 5 to 1000mPa.s in viscosity)
Operating temp. range -10 to +120°C 120 to 350°C -60 to +60°C
Max. operating pressure 2.94MPa (Depends on connections.)
Linearity ± 0.35% or ± 0.15%
Repeatability ± 0.05% or ± 0.02%
Display Select total flow or instantaneous flow rate
Output Pulse Current pulse, voltage pulse, open collector

4 to 20mADC

Others Pulse and analog simultaneously possible

Specifications: Nominal size 80 to 350mm
Nominal size 80 to 350mm
Flow range 4 to 1000 m3/h (liquids: 5 to 1000mPa.s in viscosity)
Linearity ±0.35% or ±0.15%
Repeatability ±0.05% or ±0.02%

Applicable Fluid:


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