Motive steam pressure reduction
|PMTm is a unit with a motive steam delivery line, containing a vent, a strainer and a steam trapping unit.||PMTm-BRV is a unit with a motive steam delivery line fitted with a pressure reducing unit.|
For customized configurations
up to 18 t/h
|Pressure in receiver||
Determined based on the Questionnaire information
|Motive steam pressure||
up to 19 barg*
|Backpressure in condensate line||
up to 5 barg
* — For high motive steam pressure, the recommended configuration is PMTm-BRV, with a motive steam pressure reducing valve. See section “Selection and installation details”.
|For customized configurations|
|Pumping steam trap or a pump||Determined based on the Questionnaire information|
|Motive steam pressure reducing valve|
|Stop valves, strainers and filters, float steam traps|
|Thermodynamic steam traps, pipeline connectors||Stainless steel|
|Check valves||Stainless steel, brass|
|Steam pipelines||Carbon steel*|
|Receiver, condensate pipelines||Carbon steel*|
* By default. Other materials can be quoted in “Other requirements” section of the Questionnaire.
Dimensions and weight of customized configurations
Custom-shaped for each order based on the information provided in the Questionnaire. For more information, contact Steam Control Engineering, LLC (OOO).
Selection and installation details
|A proper condensate recovery unit design is to be made in accordance with local regulations prior to a condensate recovery unit installation. All necessary additional pipeline ancillaries, safety and control devices are to be included in order to ensure safe and long-term operation of equipment.|
|Total backpressure in a pressurized condensate line (lift Hcc + condensate line pressure Pcc) must be less than the motive steam pressure Pms to achieve the target capacity. Optimal motive steam pressure should be 2-4 barg above the total backpressure in the condensate line. If this ratio is significantly exceeded, in order to extend the service life of pumps, the configuration with a pressure reducing valve BRV must be selected.
|The diameter of the condensate return line at the outlet of the unit Dc, must be selected as the greater of the following values: the diameter of the pressurized condensate return line when operating in pump mode and the diameter of the unpressurized condensate return line when operating in steam trap mode. In any case, the diameter of the condensate return line must be no less than the diameter of the fitting pipe at the condensate outlet. The diameter of the common condensate return line Dcc, if this condensate drain unit is not the only condensate draining equipment connected to the common condensate return line, is determined by hydraulic calculation based on the number and performance of steam traps connected to it.
For additional information, please contact “Steam Control Engineering”, LLC (OOO).
|The condensate outlet fitting pipe of the heat exchanger must be positioned above the receiver plane, for self-drainage of condensate into the receiver. The minimum height at which the condensate outlet fitting pipe Hfp needs to be installed depends on the type of the equipment used (a mechanical pumping steam trap or a mechanical pump).
In any case, the minimum height at which the condensate outlet fitting pipe can be installed (measured from the floor level at which the unit is installed) is:
Therefore, if the active condensate drain unit installation is proactively planned (i.e., at the design stage), an