Flow Measuring Equipments
Orifice Flow Meter Assemblies
Our Orifice Flow Meter line offers versatile solutions for industrial fluid measurement. This includes the standard Orifice Assembly for traditional applications and the high-performance Orifice Conditioning Assembly. The conditioning assembly uses a unique multi-hole design that "conditions" the flow, significantly reducing the required straight pipe runs while maintaining high accuracy. Both assemblies are robust, cost-effective, and suitable for liquids, gases, and steam.
type
Differential Pressure Flow Meter
application
Liquid, gas, and steam flow measurement
principle
Bernoulli’s equation
accuracy
±2–4%
pressureLoss
High permanent loss
installation
Simple and low cost
measurementPrinciple
Differential pressure across restriction
rangeability
3:1 to 4:1
fluidType
Liquids, gases, steam
Annubar Flow Meter
An Annubar flow meter is an insertion-type differential pressure device that measures flow by averaging velocity pressure across a pipe. It uses multiple sensing ports to provide accurate and stable flow measurement with minimal pressure loss. This averaging design provides accurate measurement across the full pipe profile and can be installed without major pipeline changes, often being hot-tap capable.
type
Averaging Pitot Tube
application
Gas, liquid, and steam flow
principle
Velocity averaging with differential pressure
pressureLoss
Very low
accuracy
±0.75–2%
installation
Insertion type / Hot tap capable
measurementPrinciple
Averaging Pitot (ΔP)
pressureTaps
Multiple upstream ports
fluidType
Liquids, gases, steam
Venturi Tube Flow Meter
A Venturi tube flow meter measures fluid flow by creating a smooth constriction in the pipeline and calculating flow from the pressure difference between inlet and throat. It offers high accuracy with low permanent pressure loss, making it suitable for large and critical flow applications. The smooth design resists fouling and buildup, providing long-term stability and high accuracy.
type
Venturi Differential Pressure Meter
application
Clean, dirty, and viscous fluids
principle
Bernoulli’s equation
accuracy
±1%
pressureLoss
Low
rangeability
4:1
construction
Converging, throat, diverging sections
pressureRecovery
High
fluidCompatibility
Liquids, gases, slurries