Editor’s choice
UNDER PRESSURE: WHEN FLOW MEASUREMENT ACCURACY MATTERS
T
itan Enterprises’ high-pressure Oval Gear liquid flow meters address the need for precise flow measurement across extreme operating conditions and harsh industrial environments, such as those seen in hydraulic system applications and the oil and gas industry. Measuring the flow of fluid under high pressure, such as in hydraulic fluid monitoring, chemical additive injection and other challenging fluid power systems, ensures optimum operational performance as well as minimising wastage. Hydraulic systems perform significant work in a broad range of industrial applications, such as:
Aerospace: in deploying and retracting landing gear on planes, flight control actuators, etc.
Mining, Construction, Agriculture: in lifting heavy loads with earth-moving equipment or processing materials with rock-crushing machinery.
Oil and Gas industry: in drilling wells in oil fields or chemical additive injection to improve oil recovery.
Marine: in pushing and steering the ship through water using propellors and thrusters powered by hydraulic systems.
Automotive: in Formula One cars incorporating sophisticated hydraulic systems to handle multiple applications, such as power-assisted braking, clutch, gearbox, and throttle actuation.
The oil and gas sector also drives a significant portion of the flow meter market, with conventional flowmeters, such as positive displacement (oval gear) devices, still having the advantage of being proven across a large installed base. These flow meters are crucial for applications like high- pressure additive injection and custody transfer, where accuracy and chemical resistance are vital.
PRESSURE TESTING – ENSURING OPERATIONAL READINESS
Pressure is a key factor when selecting hydraulic components and pressure testing each component within a hydraulic system helps to verify its structural integrity and fitness for purpose. A device’s pressure rating indicates its maximum operating pressure.
Conducted during the manufacturing process, pressure testing helps identify defects (such as leaks) early, preventing potential failures and reducing costly downtime caused by faulty components. Additionally, it also ensures that the hydraulic system meets safety standards set by regulatory bodies, safeguarding compliance. By confirming that both components and the entire system can endure and function effectively under the required operating pressure, pressure testing plays a crucial role in validating the system’s overall performance and reliability.
TITAN’S ONSITE PRESSURE TEST FACILITY Due to the demand for their high-pressure oval gear flowmeters, Titan made a capital investment into an in-house pressure test rig. This not only enables rapid turnaround of both new and refurbished flowmeters, but from an R&D
perspective, allows Titan to pressure test new materials in development.
The Hydratron pressure test rig is capable of testing to a pressure of 1,400 bar allowing for testing over the whole range of Titan’s oval gear flowmeters, including the 950 bar high-pressure options. The rig has also proved invaluable when testing new products and simulating the effects of cavitation within a hydraulic system. Alongside a refinement of gear design and standardising the flowmeter designs to improve product interchangeability, Titan’s pressure test rig has proven the design modifications, allowing a potential increase to the maximum operating pressure of its standard oval gear flowmeter range by around 50 per cent.
KEY FEATURES AND BENEFITS OF TITANS’ OVAL GEAR FLOWMETERS 1. High Accuracy and Chemical Resistance
The Oval Gear flow meters improve in measurement accuracy as liquid viscosity increases, from about one per cent to around 0.1 per cent of reading at higher viscosities. They are designed to handle a broad range of
14 February 2025 Instrumentation Monthly
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