TLV VM3HPN is a high-precision low-temperature vacuum steam heating system (VACUUMIZER) designed for single equipment production processes and pilot plants. It provides rapid start-up, uniform heating, and accurate control of jacketed vessels, conical or cylinder dryers, and other process equipment.

Features

• Steam temperature control of ±1 °C ensures consistent production quality.
• Delivers heating temperature below 100 °C to improve manufactured quality of temperature-sensitive products.
• Compared to hot water heating, temperature settings can be changed significantly faster.
• Packaged models facilitate piping installation.
• Condition monitoring of operating status to provide advanced warning of anomalies and prevent potential problems (VM3HPN only).

Product Series: VM3HPN Package Type

Usage: Single equipment production processes and pilot plants.

Applications:

• Jacketed reaction tanks (Capacity: up to 10 m³)
• Shell and tube type heat exchangers, hot air dryers, roll heaters, etc.

Key Features:

• Packaged solution greatly simplifies piping and electrical installation
• Easy-to-use touch panel
• Step heating control function enables shorter heating time
• Recipe-based temperature control for programming frequently used settings
• Rapid vacuum generation function to enable shorter start-up times
• Built-in data logger

Specifications

Model	VM3HPN (25)	VM3HPN (40)	VM3HPN (50)
Vacuum Steam Temperature Range	30 to 150 °C	30 to 150 °C	30 to 150 °C
Vacuum Steam Temperature Accuracy	Set Temperature ±1 °C	Set Temperature ±1 °C	Set Temperature ±1 °C
Number of Steam Supply Lines	1	1	1
Max. Vacuum Steam Capacity	150 kg/h	390 kg/h	600 kg/h
Max. Heating Energy	85 kW [73 Mcal/h]	225 kW [190 Mcal/h]	345 kW [300 Mcal/h]
Supply Steam Inlet Pressure	0.1 to 0.37 MPaG	0.1 to 0.37 MPaG	0.1 to 0.37 MPaG
Condensate Load	600 kg/h	600 kg/h	600 kg/h
Exhaust Speed	3.0 l/s	3.0 l/s	3.0 l/s
Minimum Pressure	Saturated pressure corresponding to motive water temperature	Saturated pressure corresponding to motive water temperature	Saturated pressure corresponding to motive water temperature
Motor Power	0.75 kW	0.75 kW	0.75 kW

Restrictions

To avoid abnormal operation, accidents or serious injury, DO NOT use this product outside of the specification range. Local regulations may restrict the use of this product to below the conditions quoted.

Piping Example

Piping Notes

A steam trap and bypass set are required when Vacuum Steam Temperature is over 95 °C. When a steam trap is installed, initial vacuum generation within the application will require more time. To shorten the vacuum generation time, open the bypass valve at startup and close the bypass valve once steady operation is achieved. The control system automatically operates the solenoid valve/motor valve as a bypass valve.

Dimensions

Model	Description	A (mm)	B (mm)	C (mm)	H (mm)
VM3HPN	Non-explosion-proof	650	1000	76	1400
VM3HPN	Flameproof	650	1000	160	1400

Standard System Components

Component	Description
Steam Pressure Control	Reduces the pressure of positive pressure steam supplied from the boiler to the saturated steam pressure (below atmospheric) of the set steam temperature
Steam Desuperheater	Changes superheated steam to stable low temperature saturated steam
Air/Condensate Discharge*	Discharges initial air from the steam-using equipment, and discharges condensate from the equipment during heating
Vacuum Generation	Discharges air when the process starts up, discharges condensate from the equipment during heating, and controls the set level of vacuum
Control Panel	Controls the system

Component Notes

* Steam trap and bypass valve set is required when steam supply temperature is over 95 °C

Standard Control Panel

The VM3HPN is available in Indoor and Outdoor types.

Control Target: Set steam temperature is automatically controlled at saturated pressure equivalent to set steam temperature.

Permanent Functions:

• Tank water level and tank water temperature control (make up water supply)
• Pump control
• Steam pressure (temperature) control
• Alarm notifications
• Maintenance notifications for key components
• Troubleshooting and fault identification
• Pump performance loss prediction and maintenance notification (pump discharge pressure, pump amperage monitoring)

Selected Functions:

• Target value area switching function: register 8 target values and switch between "Local" and "Remote"
• Rapid vacuum generation function: enabling shorter start-up times
• Step heating control function: change target steam temperature step by step depending on the temperature of the product
• Recipe-based temperature control: programmable target temperature and heating times (3 stages)
• Data logging: steam temperature, steam pressure, tank water temperature, product temperature, and control valve opening degree (VM3HPN records pump discharge pressure and pump amperage). Measurement period is configurable (1 to 300 sec.)

Control Panel Note

Control panel design is non-explosion proof. Consult TLV for explosion proof type.