Blancett B112-121 Offers

Whether on or off the oil field, this turbine flow meter maintains measurement accuracy and mechanical integrity in the corrosive and abrasive fluids commonly found in water flood projects and many industrial applications.

Features

• Offers accurate and repeatable flow measurement
• Cost-effective solution for turbine flow meter applications
• Simple installation: Built for simple installation and service, requiring a minimum of 10 diameters upstream and 5 diameters downstream straight pipe length
• Flexible operation: Designed to operate in any orientation (horizontal to vertical) as long as the flow direction arrow is aligned with the actual line flow
• Durable construction: Rugged 316 stainless steel housing and rotor support assemblies with CD4CU stainless steel rotor offers long service life in severe operating environments
• NPT end connections
• Can integrate electronically with a Blancett flow monitor (sold separately)
• K-factor Scaler, or the F to I/F to V Intelligent Converter Field replaceable repair kits (sold separately) allow for turbine replacement without loss of accuracy

Installation

This turbine meter is simple to install and service. It operates in any orientation (horizontal to vertical) as long as the "flow direction" arrow is aligned in the same direction as the actual line flow. For optimum performance, the flow meter should be installed with a minimum of 10 diameters upstream straight pipe length and 5 diameters downstream straight pipe length.

Operating principle

Fluid entering the meter passes through the inlet flow straightener which reduces its turbulent flow pattern and improves the fluid's velocity profile. Fluid then passes through the turbine, causing it to rotate at a speed proportional to fluid velocity. As each turbine blade passes through the magnetic field at the base of the transducer, an AC voltage pulse is generated in the pickup coil. These pulses produce an output frequency proportional to the volumetric flow through the meter.

K-factor

The K-factor represents the number of output pulses transmitted per gallon of fluid passing through this turbine meter. Each turbine has a unique K-factor. However, turbine meters are not functionally consistent throughout the full flow range of the meter. There are several forms of friction inherent in this turbine meter that retards the rotational movement of the turbine rotor. These frictional forces include: magnetic drag, created by electromagnetic forces of pickup transducers; mechanical drag, due to bearing friction; and viscous drag, produced by flowing fluid. As flow increases, the frictional forces are minimized and the free-wheeling motion of the turbine rotor becomes more linear (proportional to flow). The K-factor becomes relatively constant and the linear throughout the balance of the linear flow range. This is approximately a 10:1 turndown ratio from the maximum flow rate down to the minimum flow rate.

Applications

• Concrete production and consolidation
• Utility water treatment and distribution
• Oil and gas
• Process and general industry
• Refining, chemical, and petrochemical