VQ47 & VQ77
Flanged and wafer segmented-valve platforms, with series-specific size, pressure and seat options.
Review the product range ↗A LEADING CHINESE V-PORT VALVE SPECIALISTVPORTA V-port ball valves.
VPORTA V-port ball valves.
Precise control & Quick shut-off.
Valve manufacturing since 1999. VPORTA brings segmented V-port valves, matched actuators and controls together for industrial customers worldwide.
SEGMENTED V-BALL · MODULATING & ON/OFF · SINCE 1999
One complete package.Valve + actuator + controls
VQ47 / FLANGEDVALVE + ACTUATOR + POSITIONER
Since 1999Specialist valve manufacturing
DN15–500VQ47 catalogue size range
VQ47 / VQ77Flanged and wafer platforms
One packageValve, actuator & selected controls
WHY INDUSTRIAL BUYERS CHOOSE VPORTASpecialist manufacturing.
Specialist manufacturing.
Evidence behind the choice.
Based in Wenzhou, China, VPORTA focuses on V-port control, industrial isolation and pneumatic actuation. Evaluate the exact platform, not a generic valve claim.
Since 1999
A specialist manufacturing history supported by company materials and actual factory, machining and testing photographs.
Explore VPORTA’s capabilities ↗One coordinated package
Valve, trim, actuator, positioner and selected accessories reviewed against the same operating duty.
Specify the complete assembly ↗THE PRODUCT RANGERight geometry.
Right geometry.
Right control. Right fit.
Start with a valve platform, then choose the materials, seat and actuation for your process.
Flanged V-port ball valve ↗
A flanged segmented valve for demanding modulation and shut-off duties, with a V-notch flow path and selectable trim.
Explore configuration ↗
Wafer V-port ball valve ↗
A compact wafer assembly for process control where installation length and weight matter.
Explore configuration ↗Pneumatic V-port valve package ↗
Valve, pneumatic actuator and selected controls supplied as one specified assembly.
Explore configuration ↗
Manufacturing facility · VPORTA brand presentation
WHY CHOOSE VPORTAA leading Chinese specialist.
Discover VPORTA ↗
A leading Chinese specialist.
A complete process solution.
VPORTA brings valve manufacture and actuator capability together, with an established focus on segmented ball valves, knife gate valves and media containing fibers or particles.
01
Specialization since 1999
Focused experience in rotary control and industrial isolation.
02
One coordinated assembly
Valve, actuator, positioner and accessories specified together.
03
Evidence you can review
Product data, actual workshop photographs and project-specific inspection requirements.
APPLICATION ENGINEERINGYour fluid changes
Your fluid changes
the selection.
Explore the questions that matter for your industry, from fiber handling to corrosion and erosion.
Pulp & paper ↗
Stock flow. Fiber handling. Stable control.
Explore duty ↗Water & wastewater ↗
Control the process, including its solids.
Explore duty ↗Chemical processing ↗
Material selection meets flow control.
Explore duty ↗Mining & minerals ↗
Understand erosion before choosing trim.
Explore duty ↗Sugar & ethanol ↗
From fibrous juice to process utilities.
Explore duty ↗Food & beverage ↗
Match documentation to product contact.
Explore duty ↗Power & utilities ↗
Review pressure recovery and temperature.
Explore duty ↗Battery & slurry processes ↗
Control fluids with demanding rheology.
Explore duty ↗START WITH THE DUTYWhich valve fits
Which valve fits
your process?
A V-port valve uses a characterized opening to regulate flow. A segmented construction with a V-notch edge can suit qualified fibrous-media duties. An isolation-only line may need a different valve.
| Your requirement | Compare first | Confirm before selection |
|---|---|---|
| Modulation of stock or process liquids | VQ47 flanged V-port | Minimum / normal / maximum flow, pressure drop, fibers, seat and actuator. |
| Compact wafer installation | VQ77 wafer V-port | Face-to-face length, flange and bolt clearance, flow direction and metal seat. |
| Only open / close with fibers or sludge | V-port vs knife gate | Solids passage, pressure direction, shut-off requirement and cycling. |
| Automatic fail-action or flow control | Pneumatic package | Minimum instrument air, maximum shut-off differential pressure and signal. |
| High differential pressure or suspected cavitation | Duty limits and alternatives | Dedicated sizing, pressure recovery, vapor pressure and alternative trim review. |
Platform reference: VPORTA product catalogue · technical data basis: 2023. Published ranges are not a guarantee that maximum pressure, size and temperature are available together.
INSIDE THE V-PORTA quarter turn.
A quarter turn.
A controlled opening.
Watch the V-notched segment rotate past the seat. A small opening appears first, then grows as the shaft turns toward the fully open position.
VPORTA / OPERATING PRINCIPLEThrottling
Rotating segment Fixed seat Open flow path
SHAFT TRAVEL°
0° closed · 90° open
VIEW THROUGH THE SEAT
V-notch in control
The notch progressively exposes the seat opening as the segment rotates.
What the V does. Its shaped leading edge introduces a smaller opening at low travel, supporting gradual modulation. Actual capacity depends on the trim and operating conditions.
Illustration, not a sizing curve. This generic cutaway explains motion and opening. It does not predict Cv, leakage, velocity, or a specific model’s internal dimensions.
THE ENGINEERING LIBRARYKnow why it works.
Explore all technical guides ↗Know why it works.
Know when to choose it.
What makes a V-port valve different? ↗
Understand the flow path, the control characteristic and the boundaries of the design.
Read guide ↗V-port or knife gate for fibers? ↗
Separate modulation from isolation and compare the actual process needs.
Read guide ↗Cv, Kv and the operating envelope ↗
Learn why pipe size alone cannot select a control valve.
Read guide ↗ENGINEERING DESK / 01Start with the flow.
Start with the flow.
Then select the valve.
Estimate the required Kv and Cv for a clean, single-phase liquid under turbulent, non-choked conditions. This calculation does not select a valve size.
Excluded: gases, steam, flashing, cavitation, choked flow, viscous or non-Newtonian media and significant solids. Final sizing needs the selected trim curve, recovery factors and the complete operating envelope.
CLEAR ANSWERS
Before you specify.
Are V-port, V-notch and segmented ball valves the same?
The terms overlap, but they do not always identify the same construction. VPORTA’s featured VQ platforms use a V-notched segment. A full-ball valve with a characterized port may have different geometry and performance.
Can a V-port valve also provide shut-off?
Yes, when the selected seat, actuator and differential-pressure rating meet the required isolation duty. Agree the leakage class, test conditions and flow direction for the specific assembly.
Do I need a V-port valve for open/close service only?
Not always. For fibrous or slurry media requiring isolation only, a suitable knife gate or other isolation valve may be more appropriate. Compare pressure, solids behavior, cycling and installation space.
What is included in a complete package?
The scope can include the valve, matched actuator, bracket and coupling, plus selected positioner, solenoid, limit switches and air preparation. The quotation identifies what is included and what remains optional.
What information is needed for a quotation?
Send the medium, flow range, inlet/outlet pressures, temperature range, size and flange standard, quantity, actuation and failure position. Add solids and corrosion information where relevant.
VPORTA / Request a quote
Your process. Our starting point.
Tell us what the valve needs to handle. We will review the conditions and required package.
sales@vportballvalves.comWhatsApp +8618516593799 ↗For drawings or valve lists, email your attachments directly to the address above.