FLE-VQ-F · Electric V-Port Control Valve

V Port Ball Valve Electric Actuator | FLE-VQ-F

The FLE-VQ-F electric actuated V-port ball valve is designed for proportional flow control where a standard round-port ball valve does not provide enough usable control range. A characterized V-notch opening creates a progressive change in flow area as the segmented ball rotates, supporting stable modulation of water, steam, gas, slurry, pulp and compatible process liquids.

15° / 30° / 60° / 90° V-Port Options Modulating Electric Actuator Flanged ANSI / DIN / JIS PLC / DCS Integration

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Size: DN25–DN300
Pressure: PN16–PN40
Temperature: Up to +250°C*
Control: Modulating / Intelligent

FLE-VQ-F V port ball valve with electric actuator for modulating flow control

Precision control focus

Built around the V-notch geometry first, then matched with the electric actuator required for the control loop.

4V-port angle options: 15°, 30°, 60°, 90°

0–90°Quarter-turn actuator travel

4–20 mASelected modulating control configurations

Why V-port control

More usable valve travel for proportional flow control

A conventional round-port ball valve is excellent for isolation, but its flow area changes too quickly for many throttling duties. The V-shaped opening changes the effective flow area more progressively as the ball rotates.

This gives the electric actuator more usable positioning range for dosing, feed-flow regulation, temperature loops and variable process demand. The segmented V-ball also creates a shearing action at the seat, which can help reduce buildup in selected slurry, pulp and particle-bearing services.

01Fine-position control. Better use of actuator travel at partial openings.
02Process stability. Suitable for PLC / DCS loops that make frequent position corrections.
03High flow capacity. V-port options can be matched from fine regulation to higher-Cv duties.
04Media flexibility. Water, steam, gas, oil, pulp, slurry and compatible chemical liquids.

Need help selecting a V-port angle?Send the medium, flow range, pressure drop and pipe size.

Ask About V-Port Selection

Industrial process control system using electric V port ball valve for proportional flow regulation

Closed-loop process controlElectric V-port ball valves for stable modulation in automated process systems.

Technical data

FLE-VQ-F V-port segmented ball valve specifications

The valve body, seat, V-port geometry and actuator should be selected as one control assembly based on the real process conditions.

Product type	Electric actuated V-port segmented ball valve / motorized V-port control ball valve
Size range	1″–12″ / DN25–DN300
Working pressure	PN16–PN40 / ANSI Class 150–300
Working temperature	−20°C to +250°C, depending on seat material and service conditions
Body material	Stainless Steel CF8 / CF8M / Carbon Steel WCB
Seat options	PTFE or selected metal-seat configurations
V-port options	15°, 30°, 60°, 90°
Connection	Flanged — ANSI / DIN / JIS options
Applicable media	Water, steam, gas, oil, slurry, pulp and compatible chemical liquids
Actuation	Electric quarter-turn actuator; on/off, regulating and intelligent configurations
Voltage options	DC24V, AC24V, AC110V, AC220V, AC380V
Control options	On/off, selected 4–20 mA regulating control, feedback and intelligent configurations
Design references	IEC 60534 / GB/T 12237 / API 6D
Testing	API 598 / EN 12266-1
Fire-safe option	Selected API 607 configurations available
Protection	IP67 standard on selected actuators; IP68 optional
Explosion-proof option	Selected Ex d II BT4 / CT4 / CT6 Gb actuator configurations

Send your flow-control conditions for sizing.Include minimum / normal / maximum flow, pressure, temperature, medium and control signal.

Send Control Data by Email

V-port selection

Choose the V-notch around the required control duty

Different V-port openings shift the balance between fine regulation and flow capacity. Final selection should be based on Cv demand, pressure drop, media and the usable control range required by the loop.

15°Fine regulationUseful where small changes in opening must produce controlled changes in flow.

30°Low-to-medium flow dutyBalances controllability with additional capacity for dosing and process feed service.

60°Broader control rangeSuitable for many general modulating applications requiring more available flow.

90°Higher-Cv requirementSelected where higher flow capacity is required while retaining V-port modulation.

Do not choose the V-port angle from pipe size alone.Share flow rate and pressure-drop data so the valve can be sized around the actual operating point.

Ask for Cv Selection

Control valve comparison

V-port ball valve vs standard round-port ball valve

Both are quarter-turn valves, but they solve different process problems. The V-port version is selected when proportional control is the primary duty.

Selection factor

V-port electric ball valve

Standard round-port electric ball valve

Main function

Proportional / modulating flow control

Isolation, open / close service

Opening geometry

Characterized V-notch / segmented ball

Conventional circular bore

Partial opening

Designed to provide more usable control travel

Flow can change rapidly through part of the travel

Typical signals

4–20 mA or selected intelligent modulating control

On/off command and optional position feedback

Typical duty

Dosing, feed-flow, steam, slurry, temperature and process loops

Pipeline isolation, equipment switching and shutoff

Electric actuator & control

Match actuator torque, signal and duty cycle to the control loop

For a V-port control valve, actuator selection is not only about opening and closing torque. Positioning accuracy, feedback, operating frequency and control architecture also affect loop performance.

Modulating ControlSelected 4–20 mA and intelligent actuator configurations.

Position FeedbackFeedback options for PLC / DCS monitoring and closed-loop control.

On / OffAvailable where the same V-port body is used for automatic switching duty.

Power SupplyDC24V, AC24V, AC110V, AC220V and AC380V options.

ProtectionIP67, optional IP68 and selected explosion-proof configurations.

Fail PositionSelected fail-open, fail-closed and related safety options.

Actuator	Standard time / torque	Optional time / torque	Weight
FLE-105	25s / 50Nm	4s / 20Nm; 10s / 30Nm	2.2kg
FLE-110	25s / 100Nm	15s / 50Nm	5.1kg
FLE-116	25s / 160Nm	15s / 80Nm	5.1kg
FLE-120	25s / 200Nm	15s / 100Nm	7.5kg
FLE-140	25s / 400Nm	15s / 200Nm	7.5kg
FLE-160	25s / 600Nm	15s / 300Nm	8.1kg
FLE-1100	50s / 1000Nm	25s / 500Nm	12.7kg
FLE-1200	50s / 2000Nm	25s / 1000Nm	12.7kg

Need actuator sizing for modulating service?Send valve size, ΔP, media, cycle frequency, voltage and control signal.

Ask About Actuator Sizing

Application environments

Where electric V-port ball valves are typically used

The strongest fit is a process that needs repeatable throttling, remote electric actuation and more predictable control than a standard isolation ball valve can provide.

Water and wastewater treatment flow control application for electric V port ball valve — Dosing · Filtration · Flow LoopsWater & Wastewater Treatment
Modulating chemical feed, filter flow, neutralization and process-water control.

Chemical dosing and blending process application for motorized V port ball valve — Dosing · Blending · Reactor FeedChemical Processing
Controlled transfer and feed-flow adjustment for compatible chemical process media.

Pulp slurry industrial process application for segmented V ball control valve — Pulp · Slurry · Suspended SolidsPulp & Paper / Slurry Service
The segmented V-ball can provide a shearing action useful in selected particle-bearing process lines.

Steam and industrial utility control application for electric actuated V port ball valve — Steam · HVAC · Process UtilitiesEnergy & Utility Control
Flow and temperature-loop regulation in compatible steam, heating and plant utility systems.

Have a different control application?Email your process data for valve body, seat, V-port and actuator matching.

Discuss Your Application

Engineering selection

Size the control duty before choosing the electric actuator

A V-port valve should be selected from process data, not only nominal pipe diameter. Oversizing can leave the normal operating point at a very small opening and reduce usable control travel.

Define the medium

State liquid, gas, steam, slurry or pulp service, plus concentration, solids and compatibility requirements.

Provide the flow range

Minimum, normal and maximum flow are more useful for control-valve sizing than pipe size alone.

Confirm upstream / downstream pressure

Provide actual pressure drop at the main operating points so the required Cv can be evaluated.

Choose body, seat & V-port

Match materials and V-notch geometry to temperature, media, control range and wear conditions.

Match actuator torque & duty cycle

Consider valve torque, differential pressure, modulation frequency and an appropriate engineering safety margin.

Specify signal & feedback

Define 4–20 mA or other required control, feedback, fail position, supply voltage, IP rating and hazardous-area needs.

For faster selection, send all six items in one email.Our engineers can review the V-port valve and actuator as a complete control assembly.

Email Selection Data

Quality & protection

Industrial actuator options for continuous process environments

FLE-VQ-F assemblies can be configured around the project requirement, including selected protection, safety and electric-actuator options for industrial automation service.

API 598Valve testing reference listed for the FLE-VQ-F series.

IP67 / IP68Selected electric actuator protection options.

BT4 / CT6Selected explosion-proof actuator configurations.

Frequently asked questions

V-port ball valve electric actuator FAQs

Answers focused on modulating control, V-port selection, actuator signals and the difference between V-port and standard ball valves.

What is a V-port ball valve with an electric actuator?

It combines a V-notch or segmented ball valve with a quarter-turn electric actuator. Unlike a standard on/off ball valve, the V-shaped opening is intended to provide more usable valve travel for proportional flow control. Depending on the actuator configuration, it can be integrated with PLC or DCS systems for modulating service.

Why use a V-port ball valve instead of a standard electric ball valve?

A standard round-port ball valve is primarily optimized for isolation. A V-port ball valve changes the effective flow area more progressively as it rotates, making it better suited to dosing, feed-flow regulation, temperature loops and other processes where stable partial-opening control is important.

Which V-port angle should I choose: 15°, 30°, 60° or 90°?

The angle should be selected from the required flow coefficient, pressure drop and control range. Smaller V-notch options are generally associated with finer low-flow regulation, while larger openings provide more capacity. The correct choice should be confirmed from the real minimum, normal and maximum flow conditions.

Can the FLE-VQ-F support 4–20 mA modulating control?

Selected regulating electric actuator configurations can support 4–20 mA control and position feedback. When requesting a quotation, specify the required input signal, feedback signal, power supply, fail position and PLC / DCS interface requirements.

Can a segmented V-ball valve handle slurry or pulp?

The segmented V-ball geometry creates a shearing action at the seat and can be suitable for selected slurry, pulp and suspended-solid services. Final suitability depends on solids concentration, particle characteristics, velocity, seat material, pressure drop and wear conditions.

What information is needed to size an electric V-port control valve?

Provide the process medium, minimum / normal / maximum flow, inlet and outlet pressure, temperature, pipe size, required materials, control signal, power supply and operating frequency. These values allow the valve Cv, V-port geometry and electric actuator torque to be reviewed together.

Need a V-port valve sized around your actual flow conditions?

Send the medium, flow range, pressure drop, temperature, size, voltage and control signal for FLE-VQ-F selection.

Email inquiry@fleyendaflow.com

FLE-VQ-F · Electric V-Port Segmented Ball Valve

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