What is a nutating disc meter?
Nutating Disc meters are the most common and accurate type of positive displacement meters. These rugged and reliable meters are a cost-effective solution for metering industrial fluids, including condensate return, boiler feed, additive dispensing and other applications.
What is rotary vane flow meter?
A rotating vane flow meter is a type of positive displacement meter in which the fluid passed through a rotating set of vanes. The passage between each set of vanes delivers a specific volume of fluid to the outlet side of the meter, allowing the flow rate to be determined based on the rotational rate of the vanes.
What is oval gear flow meter?
Oval Gear flow meters are designed to function in applications that require an accurate volume dispensing of water solutions or any other liquid, including for use in brake fluid, wiper fluid and antifreeze applications.
What are the different types of positive displacement meters?
What are different types of Positive Displacement flow meter technologies? Examples of meters using the positive displacement concept of measurement are oval gear meter, nutating disc meters, spur gear meters, variable area flow meters, screw meters, oscillating piston meters, helical gear meters, rotary vane meters.
Which one of the following is a positive displacement type flow meter?
Reciprocating Piston Meters These are also known as oscillating piston flow meters. These are one of the oldest positive displacement type flow meter designs.
What is a flow vane?
“Flow-straightening vanes” means vanes, or other device installed at the upstream throat of a measuring chamber for the purpose of aligning all velocity components of flow parallel with the flow in the measuring chamber at the water flowmeter sensor location.
How does a impeller flow meter work?
Two rotating impellers, designed with a figure eight cross section, rotate in opposite directions due to the forces exerted by the gas flow being measured. The shape of the impellers prevents contact while the gap between them remains constant.
What is K factor in turbine flow meter?
For aircraft fuel flow meters, K-factor refers to the number of pulses expected for every one volumetric unit of fluid passing through a given flow meter, and is usually encountered when dealing with pulse signals.
What is a nutating disc engine?
A nutating disc engine (also sometimes called a disc engine) is an internal combustion engine comprising fundamentally of one moving part and a direct drive onto the crankshaft.
How do you calculate the flow through a nutating disc?
As the fluid flows through the chamber, the disk wobbles, or executes a nutating motion. Since the volume of fluid required to make the disc complete one revolution is known, the total flow through a nutating disc can be calculated by multiplying the number of disc rotations by the known volume of fluid.
What is a nutating disk flow meter?
A typical nutating disk is shown in Figure A1. This type of flow meter is normally used for water service, such as raw water supply and evaporator feed. The movable element is a circular disk which is attached to a central ball. A shaft is fastened to the ball and held in an inclined position by a cam or roller.
What is the operation of the Dakeyne nutating disc engine?
Operation of the Dakeyne nutating disk engine. A nutating disc engine (also sometimes called a disc engine) is an internal combustion engine comprising fundamentally of one moving part and a direct drive onto the crankshaft.