Heating Medium Control Valve

Product Specifications

Technical details and manufacturing context for Heating Medium Control Valve

Definition

The Heating Medium Control Valve is a component used in industrial heating systems to modulate the flow of heating medium—such as steam, hot water, or thermal oil—thereby controlling the temperature of the process. It serves as the primary control point for thermal energy transfer, responding to signals from temperature sensors or controllers to adjust its position. The valve is available in nominal diameters from 15 to 300 mm (ISO 6708) and pressure ratings from PN16 to PN40 (ISO 7268). Its flow coefficient (Kv) ranges from 1.6 to 400 m³/h (IEC 60534-2-3), with leakage rates of 0.01–0.05% of Kv (IEC 60534-4) and control accuracy of ±1–±2% (IEC 60534-4). The actuator operates on 24 V DC ±10% (IEC 60034-1) and accepts a 4–20 mA control signal (IEC 60381-1). Operating temperature range is -40 to 200°C, and operating pressure is 1.0–1.6 MPa. Ingress protection is IP54–IP65 (IEC 60529). Body materials include WCB, CF8, and CF8M (ASTM A216/A351); seat materials include PTFE, PPL, and STL (ASTM A182). Weight ranges from 5 to 150 kg depending on size and pressure class. These values are directory reference ranges and must be verified with the manufacturer for specific models and applications. The valve is typically used in heating sections of industrial processes where precise temperature control is required. Selection involves determining required flow rate, pipe size, pressure class, and compatibility with the heating medium. Verification of standards and performance data is essential before procurement.

Working Principle

The valve operates by adjusting its opening via an actuator, which receives control signals from temperature sensors or controllers. As the valve position changes, it restricts or allows the flow of heating medium, thereby regulating the amount of thermal energy delivered to the heating section. The actuator moves the valve stem to a position that corresponds to the desired flow rate, based on the difference between the setpoint and actual temperature. This modulation allows for precise control of heat transfer, maintaining the process temperature within the specified accuracy. The valve's design ensures tight shut-off when closed, minimizing leakage and energy loss.

Common Materials

Stainless Steel, Carbon Steel, Bronze

Technical Parameters

Parameter	Typical range	Notes & selection driver
Nominal Diameter	15–300 mm	Select based on required flow rate and pipe size.ISO 6708
Nominal Pressure	PN16–PN40 bar	Higher pressure rating for high-temperature applications.ISO 7268
Flow Coefficient (Kv)	1.6–400 m³/h	Determines valve capacity for water at 20°C.IEC 60534-2-3
Leakage Rate	0.01–0.05 % of Kv	Class IV or higher for tight shut-off.IEC 60534-4
Control Accuracy	±1–±2 %	Tighter accuracy for precise temperature control.IEC 60534-4
Actuator Supply Voltage	24 ±10% V DC	Standard for industrial control systems.IEC 60034-1
Control Signal	4–20 mA	Analog signal for positioner or controller.IEC 60381-1
Operating Temperature	-40–200 °C	For steam and thermal oil up to 200°C.
Operating Pressure	1.0–1.6 MPa
Ingress Protection	IP54–IP65	IP65 for outdoor or washdown environments.IEC 60529
Body Material	WCB/CF8/CF8M	CF8M for corrosive media.ASTM A216/A351
Seat Material	PTFE/PPL/STL	PTFE for general, STL for high temp.ASTM A182
Weight	5–150 kg	Depends on size and pressure class.

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Valve Body
Main housing that contains the flow path and withstands system pressure

Material: Stainless Steel
Valve Trim Part
Internal components (seat, plug, stem) that regulate flow

Material: Stainless Steel
Actuator
Mechanism that positions the valve based on control signals

Material: Aluminum Alloy
Positioner
Device that ensures accurate valve positioning

Material: Plastic/Electronic Components

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Heating Section

View system integration details

Manufacturers of Heating Medium Control Valve

Manufacturer profiles associated with Heating Medium Control Valve.

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Frequently Asked Questions

What heating media can this valve handle?

The valve is designed for typical heating media such as steam, hot water, and thermal oil. The operating temperature range is -40 to 200°C, and the operating pressure is 1.0 to 1.6 MPa. Always verify compatibility with the specific medium and operating conditions with the manufacturer.

How do I select the correct valve size?

Selection is based on the required flow rate and pipe size. The nominal diameter ranges from 15 to 300 mm, and the flow coefficient (Kv) ranges from 1.6 to 400 m³/h. Consult the manufacturer's sizing data to ensure the valve meets your system's requirements.

What control signal does the actuator accept?

The actuator accepts a 4-20 mA analog control signal, which is standard for industrial control systems. The supply voltage is 24 V DC ±10%. Ensure your controller is compatible with these specifications.

What is the leakage rate and control accuracy?

The leakage rate is 0.01-0.05% of Kv, and the control accuracy is ±1-±2%. These values are per IEC 60534-4 and should be verified for the specific model. For tight shut-off, Class IV or higher is recommended.

Data Basis

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Preliminary Technical Classification

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pressure:	0 to 25 bar
flow rate:	0.5 to 100 m³/h
temperature:	-20°C to 250°C
slurry concentration:	Not recommended for slurries >5% solids by volume

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