Fuel Supply & Control Valve

Product Specifications

Technical details and manufacturing context for Fuel Supply & Control Valve

Definition

The Fuel Supply & Control Valve is a component used in combustion systems to manage the delivery of fuel—such as gas, oil, or other combustible materials—to the combustion chamber. Its primary function is to modulate the fuel flow rate in response to control signals, ensuring the correct fuel-air mixture for efficient and safe combustion. The valve operates by opening, closing, or partially obstructing the flow passage using mechanical, pneumatic, or electronic actuation. It is typically installed in fuel supply lines and is available in nominal diameters from 15 to 100 mm (per ISO 6708), with an operating pressure range of 1.0 to 1.6 MPa. The flow coefficient (Cv) ranges from 2.5 to 120 m³/h (per IEC 60534-2-1), and the leakage rate is 0.01% of rated Cv (Class VI shutoff). Operating temperature is -40 to 85 °C (per IEC 60534-4), with response times from 0.5 to 2.0 seconds. The control signal is 4-20 mA analog (HART available), and the supply voltage for electric actuators is 24 V DC ±10% (per IEC 60534-6). Ingress protection is IP65 to IP67 (per IEC 60529). Body materials include carbon steel (WCB) or stainless steel (CF8M) per ASTM A216/A351, and seat materials are PTFE or PEEK per ASTM D3294. Weight ranges from 5 to 80 kg depending on size and actuator. These values are reference ranges; verify model-specific specifications with the manufacturer. The valve is used in industrial burners, boilers, and process heaters where precise fuel control is critical. Selection requires consideration of pipe size, pressure, temperature, and actuator type. Maintenance signals include erratic flow, leakage, or slow response. Failure boundaries include exceeding pressure or temperature limits, which may damage seals or cause unsafe operation.

Working Principle

The valve regulates fuel flow by adjusting the position of a closure element (e.g., plug, disc, or ball) within the flow path. Actuation can be manual, pneumatic, or electric, with the actuator receiving a control signal (typically 4-20 mA) that corresponds to a desired flow rate. The valve opens, closes, or partially obstructs the passage to achieve the required fuel delivery. The flow coefficient (Cv) indicates the valve's capacity at full open, and the leakage rate ensures tight shutoff when closed. The response time depends on the actuator and valve size. The valve operates within specified pressure and temperature limits; exceeding these can cause seat damage or loss of sealing. The control system adjusts the valve position based on feedback from sensors to maintain the correct fuel-air ratio.

Common Materials

Stainless Steel, Brass, Carbon Steel

Technical Parameters

Parameter	Typical range	Notes & selection driver
Nominal Diameter	15–100 mm	Matches pipe size; larger sizes on request.ISO 6708
Operating Pressure	1.0–1.6 MPa	Below 1.0 MPa seat load is insufficient.
Flow Coefficient (Cv)	2.5–120 m³/h	Full open; varies with size.IEC 60534-2-1
Leakage Rate	0.01 % of rated Cv	Class VI shutoff; no visible leakage.ISO 5208
Operating Temperature	-40–85 °C	Outside range use high-temp seals.IEC 60534-4
Response Time	0.5–2.0 s	Full stroke; depends on actuator.IEC 60534-4
Control Signal	4–20 mA	Analog; HART available.IEC 60534-6
Supply Voltage	24 ±10% V DC	For electric actuator.IEC 60534-6
Ingress Protection	IP65–IP67	For actuator and enclosure.IEC 60529
Body Material	WCB/CF8M	Carbon steel or stainless.ASTM A216/A351
Seat Material	PTFE/PEEK	PTFE for standard, PEEK for high temp.ASTM D3294
Weight	5–80 kg	Depends on size and actuator.

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 containing fuel flow passages

Material: Stainless Steel
Actuator
Mechanism that opens/closes the valve (manual, pneumatic, electric)

Material: Aluminum Alloy
Seat Part
Sealing surface that prevents fuel leakage when valve is closed

Material: PTFE or Rubber
Stem Part
Connects actuator to valve closure element

Material: Stainless Steel
Closure Element (Plug, Disc or Ball)
The moving part the stem drives onto the seat; its position is what sets the fuel flow.

Material: Stainless Steel

Applied To / Applications

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

Combustion System

View system integration details

Manufacturers of Fuel Supply & Control Valve

Manufacturer profiles associated with Fuel Supply & Control Valve.

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Frequently Asked Questions

What is the operating pressure range of this valve?

The operating pressure range is 1.0 to 1.6 MPa. Always verify the specific model's pressure rating with the manufacturer.

What materials are available for the valve body?

The body material can be carbon steel (WCB) or stainless steel (CF8M) per ASTM A216/A351. The seat material is PTFE for standard applications or PEEK for high-temperature use. Confirm material compatibility with your process fluid.

What is the leakage rate of this valve?

The leakage rate is 0.01% of rated Cv, which corresponds to Class VI shutoff. This means no visible leakage is expected when the valve is closed. However, actual performance depends on installation and maintenance.

What control signal does the valve accept?

The valve accepts a 4-20 mA analog control signal per IEC 60534-6. HART communication is available as an option. The supply voltage for electric actuators is 24 V DC ±10%. Verify compatibility with your control system.

Data Basis

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Preliminary Technical Classification

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pressure:	0 to 100 bar
flow rate:	0.1 to 100 L/min
temperature:	-40°C to 200°C
slurry concentration:	Not applicable (clean fuels only)

Product Specifications

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