Mechatest Sample Conditioning Panels are pre-designed for proper conditioning of your steam and water samples.
We take care from sample tap to sampling conditioning and analysis specific but not limited to the steam cycle and power plant
The conditioning has the main function to reduce and regulate the temperature, flow and pressure of the sample.
All our sampling systems are designed with best-in-class and critical components such as sample coolers, pressure reducing valves (VREL), back pressure regulators, relief valves, flow controllers and thermal shut off valves. We are a distributor of several leading brands like Sentry, Herpi, Therm-Omega and in house designed sample conditioning systems. The sampling panels are provided with highly efficient double helix coil-in-shell type sample coolers based on contra flow design and therefore require a very low cooling water flow.
Sample Conditioning Panels built as per standard ASME PTC 19.11 and/or VGB/DGRL.
The Sample is first cooled in Sample Coolers, depressurized in pressure regulators and then fed to various analyzers while keeping the flow constant by means of a Back Pressure Regulating Device. There are different safety equipment provided in SCS panels, so that the operators feel safe while working with these systems.
Predesigned SCS for water application.
Low Pressure Medium Temperature water sampling panels for Condensate samples.
Low Pressure High Temperature sampling panels are for
High Pressure Medium Temperature sampling panels are for HP-Steam samples.
High Pressure High Temperature sampling panels are for HP-Steam samples.
Sentry Sample Coolers
Pressure Reducing Valve Sentry VREL
Sentry Thermal Shutoff Valve (with reset button)
Thermal Shutoff Valve (automatic)
Refillable Cation Exchange Resin Columns
Samples must be taken from locations that are representative of the water source, treatment plant, storage facilities, distribution network, points at which water is delivered to the consumer, and points of use. In selecting sampling points, each locality should be considered individually; however, the following general criteria are usually applicable:
Sampling sites in a piped distribution network may be classified as:
— fixed and agreed with the supply agency;
— fixed, but not agreed with the supply agency; or
— random or variable.
Each type of sampling site has certain advantages and disadvantages. Fixed sites agreed with the supplier are essential when legal action is to be used as a
EPRI Isokinetic Sampling Nozzles (Probes)
Ideal for saturated steam, superheated steam, and water sampling in steam and power plants.
These nozzles meet the requirements of ASTM Standards D1066 and D3370.
The nozzles extract a representative isokinetic sample from a flow region removed from the pipe surface and at the average flow velocity of the sample fluid.
This arrangement results in the withdrawal of the sample with representative concentrations of dissolved, suspended, and volatile constituents.
An appropriate nozzle (probe) is designed for the desired sample flow and typical conditions of the sample fluid. When the flow velocity through the pipe changes, sample flow should be adjusted to maintain isokinetic sampling.
Each Nozzle (probe) is designed with considerations of vortex shedding, resonance, vibration, erosion, and strength of the attachment to the pipe.