Technical information
For standard package configurations | For customized package configurations | |||
Limitations | Output | up to 1500 kW | up to 10000 kWт | |
Inlet steam | up to 4,5 barg* | up to 155 *С | Determined based on the Questionnaire information | |
Heated medium | up to 6 barg | up to 95 *С | ||
Rated inlet pressure | 3,0-4,0 barg | |||
0,5-2 barg | ||||
Connection to the electricity grid |
230 V 50 Hz (10 A). Safety device with appropriated rated parameters must protect the control cabinet. |
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Compressed air | 6,0-9,0 barg, free of dust, moisture and oil (in compliance to ISO 8573-1) | |||
Secondary heat transfer medium | Heating, heat supply systems: water prepared in accordance with the water preparation standards for water-heating boilers
DHW systems: water under the quality standards for drinking water |
* – For steam pressure above 4.5 barg it is neccessary to use a steam pressure reducing unit, e.g., HTG-PR.
Materials
Control valves, stop valves, strainers and filtersCast iron
For standard package configurations | For customized package configurations | |
Heat exchanger | Plates – stainless steel Case – carbon steel |
Determined based on the Questionnaire information |
Float and pump steam traps | Cast iron | |
Thermodynamic traps, pipeline connectors | Stainless steel | |
Check valves | Stainless steel, bronze | |
Ball valves | Carbon steel | |
Circulation pump | Cast iron for heating circuits Bronze for DHW circuits |
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Steam pipelines | Carbon steel* | |
Condensate pipelines | Carbon steel* | |
Secondary unit pipelines | Stainless steel* | |
Frame | Carbon steel* |
* By default. Other materials can be quoted in “Other requirements” section of the Questionnaire.
Optional units
HTG-PR– steam pressure reduction unit based on mechanical pressure reducing valve or control valve |
Supplied types:
HTGi-150-S-W-..-CF / PMTm | Modular heat transfer package, power from 50 up to 150 kW based on finned-type heat exchanger, with an electric (EL) or pneumatic (PN) actuator. |
HTGi-450-S-W-..-CF / PMTm | Modular heat transfer package, power from 150 up to 450 kW based on finned-type heat exchanger, with an electric (EL) or pneumatic (PN) actuator. |
HTGi-750-S-W-..-CF / PMTm | Modular heat transfer package, power from 450 up to 750 kW based on finned-type heat exchanger, with an electric (EL) or pneumatic (PN) actuator. |
HTGi-1500-S-W-..-CF / PMTm | Modular heat transfer package, power from 750 up to 1500 kW based on finned-type heat exchanger, with an electric (EL) or pneumatic (PN) actuator. |
For the presented list of typical configurations, additional units have been developed, such as HTG-PR steam pressure reducing groups, which have the appropriate performance, connection and overall dimensions.
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).
Dimensions and weight of standard configurations (approximate)*
TYPE | Model | Steam flow rate, max, (kg/h) | Water flow rate, Δt=50°C, (m3/h) | Height,H (mm) |
Length,L (mm) |
Width,B (mm) |
Connection | |||
Steam | Condensate | Water | ||||||||
Inlet,А (mm) |
Outlet,Б (mm) |
Inlet,В (mm) |
Outlet,Г (mm) |
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HTGi-S-../PMTm | 150 | 250 | up to 2,6 | 1510 | 1500 | 730 | 40 | 40 | 40 | 40 |
450 | 750 | up to 7,8 | 1640 | 2060 | 890 | 65 | 40 | 50 | 50 | |
750 | 1250 | up to 12,9 | 1750 | 2280 | 1050 | 80 | 40 | 65 | 65 | |
1500 | 2500 | up to 25,8 | 2250 | 2460 | 1110 | 100 | 50 | 100 | 100 |
TYPE | Model | Weight,kg | a1,mm | a2,mm | b1,mm | b2,mm | c1,mm | c2,mm | d1,mm | d2,mm | L1,mm | B1,mm |
HTGi-S-../PMTm | 150 | 220 | 170 | 130 | 1210 | 260 | 730 | 160 | 1040 | 160 | 1390 | 640 |
450 | 430 | 190 | 240 | 1270 | 250 | 700 | 170 | 1100 | 170 | 1950 | 800 | |
750 | 560 | 210 | 250 | 1320 | 250 | 740 | 180 | 1120 | 180 | 2200 | 950 | |
1500 | 800 | 180 | 230 | 1910 | 230 | 940 | 210 | 1660 | 210 | 2460 | 1110 |
* The actual unit may have slightly different appearance than the types shown in the figure below, but the stated dimensions will remain unchanged. For more information, contact Steam Control Engineering, LLC (OOO)..
Control system
- Temperature control of the secondary heat transfer medium at the heat exchanger outlet.
- • Regulation of steam pressure at the heat transfer package inlet, can be used for additional HTG-PR unit of EL/PN modifications.
- Stopping steam supply in case of overheating or low water pressure.
- Circulation pump control.
- Digital output to control the opening of the mix or steam depressurization valve.
- General alarm (dry contact) and optional configurable digital output.
- Digital input for remote on/off switching of the unit.
- Two additional configurable analog inputs for:
- remote temperature setting;
- connecting a steam pressure gauge;
- connecting a steam flowmeter;
- control valve actuator feedback.
- On request: digital interface for connection with the top level of the Computerized Process Control System (CPCS) (Profinet, Modbus, Profibus).
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. |
Despite the fact that the heat transfer package is equipped with its own circulation pump, an external recirculation circuit is also recommended (in particular, for domestic hot water systems). The recirculation circuit must be connected to the cold water supply line in the heat transfer package at the same point as the connection point of the internal circulation circuit. If you need to install an additional connection for the recirculation line, please, specife in the “Other” section of the Questionnaire.
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If there are sharp changes in the flow rate and it is not possible to stabilize the temperature of the water leaving the heat exchanger, you can also install an additional valve between the inlet and outlet, which will mix cold water (or discharge hot water) and prevent overheating in the event of a sharp decrease in consumption. The control system is equipped with a digital output for connecting such a valve.
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If you choose a custom configuration, please, specify the required number of heat exchangers (one, two or more) and the percentage of redundancy (50%, 100% of the heat capacity) in the “Other” section of the Questionnaire. |
The use of an automatic shut-off valve (CF, CMF option) is mandatory if a heat transfer package configuration for domestic hot water systems as been selected and is highly desirable if a heat transfer package configuration for heat supply and heating systems has been selected. |
The unit control system is equipped with a digital input for connecting a pressure switch of a heated medium. The use of a pressure switch is recommended to prevent boiling of the liquid in the heat exchanger, as well as to prevent circulation pumps failure. A pressure switch installation is recommended on the return pipe. |