WOIN · ENGINEERING REFERENCE · 2027 EDITION
A researched global shortlist for instrumentation, process and EPC engineers — with OEM ownership, specialist portfolios, product strengths and vendor-selection checkpoints.
Updated 01 November 2026 · Reviewed against manufacturer portfolios
Top control valve manufacturers are not all alike. Some offer a wide range of valves for many process industries. Others focus on a particular duty, such as steam control, anti-surge service, slurry handling or high-pressure applications. This 2027 WOIN guide helps engineers compare those suppliers by product range and application strength.
In a process plant, a control valve changes its opening to regulate flow, pressure, temperature or liquid level. For that reason, the right choice depends on more than the brand name. Engineers must also check the valve body, trim, actuator, positioner, test records and local service support.
This updated guide revisits the suppliers in the original WOIN article. It also adds global OEMs and specialist manufacturers that publish genuine control-valve product ranges. In addition, it explains important changes in company ownership and brand names.
This is an engineering shortlist, not a market-share ranking. There is no single public ranking that compares every control-valve maker across all regions and applications. Instead, the list groups suppliers by their published products and areas of focus. Some companies offer a broad range; others serve a narrower but important duty. Always check the exact model, factory, certificates and project approval status before you specify or buy a valve.
01Quick comparison
Leading Control Valve Manufacturers — At a Glance
Use this table to create an initial vendor shortlist. The “portfolio emphasis” column summarises the product families shown on each company’s website. However, it does not replace a current datasheet or written application review. In practice, the offered model and trim matter more than a brand name alone.
Top control valve manufacturers: how to read the comparison
First, identify the valve design and service that your project needs. Next, compare the suppliers that publish a matching product range. Then confirm the model, size, pressure class, materials and support location with the manufacturer.
| Manufacturer / group | Recognised brands or entity | Portfolio emphasis | Useful engineering lens |
|---|---|---|---|
| Emerson | Fisher | Globe, angle, rotary and severe-service control valves; digital valve controllers | Broad process-control portfolio and diagnostics ecosystem |
| Baker Hughes | Masoneilan | Globe and rotary control valves, regulators, positioners and severe-service trim | Refining, petrochemical and demanding process applications |
| Flowserve | Valtek, Kämmer | Engineered linear / rotary control valves and application-specific trim | Capacity, pressure-drop management and maintainability |
| Valmet | Neles, Severn Glocon | General-service and severe-service control, choke and butterfly valves | Neles broad control portfolio; Severn Glocon specialist control and choke range |
| SAMSON | SAMSON, VETEC and group brands | Globe, angle, three-way, high-pressure and special-service control valves | Integrated valve, actuator, positioner and accessories |
| IMI | IMI CCI, DRAG, ABJ and other platforms | General, semi-severe and severe-service control valves | Steam, power and high-energy process applications |
| Nihon KOSO Group | KOSO, KOSO Kent Introl | Control, choke, anti-surge and subsea valve solutions | Oil & gas and specialist high-pressure services |
| ARCA / Forbes Marshall | ARCA; Forbes Marshall ARCA (regional JV) | Globe, rotary, three-way and steam-conditioning control valves | Process and steam applications; regional supplying entity matters |
| KSB | MIL Controls | General-service, multistage and severe-service control valves | Power, feedwater and high-pressure letdown; check recirculation valves separately |
| Azbil | Azbil | Globe, angle, three-way and eccentric rotary control valves; positioners | Process control, diagnostics and maintenance support |
| Bray International | V-Control, Series 19/19L, Series 39 | Control ball, segmented-ball, butterfly and slurry control valves | Rotary control, mining, chemical, water and general process duties |
| Mokveld | Mokveld axial valves | Axial control, anti-surge and axial / angle choke valves | Critical oil & gas, water, hydropower and severe-duty control |
| Spirax Group | Spirax Sarco, GESTRA | Steam / process-fluid control valves, including severe-service steam designs | Steam, condensate, thermal and utility systems |
| Schubert & Salzer | Schubert & Salzer Control Systems | Globe, sliding-gate, ball-sector and segmented-disc control valves | Compact industrial process valves, slurry and specialist applications |
| SchuF | SchuF Group | Engineered angle control, bottom-outlet and specialty process valves | Severe chemical, polymer, slurry, flashing and erosive service |
| ARI-Armaturen | STEVI | General and high-performance globe / three-way control valves | Steam, thermal, process and plant-engineering applications |
| Bürkert | Bürkert process valves | Angle-seat control valves and integrated process-valve automation | Compact process, chemical, food, pharmaceutical and utility duties |
| Celeros Flow Technology | Copes-Vulcan | Severe-duty control valves, actuators and steam-conditioning equipment | Power, nuclear, oil & gas and high-energy process applications |
| Trillium Flow Technologies | Control-valve portfolio and legacy valve brands | Globe and butterfly control valves | Power, oil & gas, water and general industrial applications |
Portfolio overview based on manufacturer-published product information reviewed for this 2027 edition.
What this supplier comparison does not rank
The table does not score price, market share, quality or installed base. Instead, it shows where each company may be worth considering. For example, a specialist axial-valve supplier is not a direct substitute for every general-service globe-valve OEM. Use a list of top control valve manufacturers as a starting point for research, not as a final approval list.
02Global manufacturer profiles
Top control valve manufacturers in the world
How the top control valve manufacturers are grouped
The profiles include suppliers from the original WOIN article and additional companies found during an independent product review. They appear in no particular order. In addition, the list separates large process-control OEMs from specialists in axial, steam, hygienic and severe-service applications. Each company must publish a real control-valve range to be included. However, not every supplier competes in every size, pressure class or industry. This distinction helps readers compare the top control valve manufacturers with specialist suppliers on a fair basis.
We checked official product pages, product documents, company ownership and stated application markets. We did not invent market-share scores or a global rank. Where brands belong to one parent group, they are shown together. We also left out distributors, actuator-only suppliers and companies whose main products are isolation or safety valves.
Emerson — Fisher
GLOBAL PROCESS CONTROL · FISHER™
Emerson’s Final Control business offers a broad range of industrial valves, with Fisher as one of its main control-valve brands. For example, Fisher products cover everyday flow control as well as demanding duties in oil and gas, refining, chemicals and power.
Portfolio to explore
- Globe, angle, three-way and rotary control valves
- Segmented-ball, eccentric-plug and high-performance butterfly designs
- Severe-service valves and steam-conditioning solutions
- FIELDVUE digital valve controllers and ValveLink diagnostics
For I&C teams, Fisher’s digital valve controller and diagnostics ecosystem is worth reviewing alongside the mechanical valve selection. Diagnostics can help identify friction, deadband, air-supply restrictions and calibration issues, subject to the installed instrument and configuration.
Baker Hughes — Masoneilan
PROCESS VALVES · MASONEILAN®
Masoneilan is Baker Hughes’ control-valve brand. It serves process plants where stable control and reliability matter. In addition, its range includes actuators, regulators and valve-positioning technology to support the complete valve package.
Portfolio to explore
- Globe and rotary control valves
- Severe-service valves and anti-noise / anti-cavitation options
- Regulators and pneumatic / digital valve positioners
- Series such as 10000, 21000, 28000, 41005 and 80000
Check the exact valve series and trim options against the service conditions. A series name alone does not establish suitability for flashing, cavitation, high noise or erosive two-phase duty.
Flowserve — Valtek and Kämmer
FLOW CONTROL PRODUCTS · VALTEK®
Flowserve supplies fluid-handling and control products, including industrial control valves. In particular, the Valtek brand is known for engineered linear valves, while Kämmer adds products for selected process applications.
Portfolio to explore
- Valtek Mark 100 / 100SC and other linear globe or angle designs
- High-capacity and high-pressure control-valve configurations
- Noise-abatement, anti-cavitation and hardened trim options
- Valve, actuator and positioner combinations
For severe service, check the manufacturer’s sizing basis, trim staging, material selection, actuator thrust and maintenance access. The Mark 100 product page specifically describes options for noise and cavitation management.
Valmet — Neles and Severn Glocon
FLOW CONTROL · Neles™ / SEVERN GLOCON™
Valmet’s current flow-control range includes Neles and Neles Easyflow control-valve platforms, as well as other valve brands. Following a major change, Valmet completed its acquisition of Severn Group on 1 July 2026. The deal brought Severn Glocon, ValvTechnologies and LB Bentley into the group. For a control-valve comparison, focus on Neles and Severn Glocon. By contrast, ValvTechnologies mainly supplies metal-seated severe-service valves, while other group brands focus on on-off valves or valve automation.
Portfolio to explore
- Neles globe and rotary control valves, including severe-service designs
- Neles valve controllers and associated automation
- Severn Glocon control, choke and butterfly valve solutions
- Other Valmet group brands for on-off service, valve automation and specialist flow control — evaluate separately from modulating control valves
This ownership update matters when refreshing approved-vendor lists and checking the current sales, service and aftermarket channel. Confirm which legal entity, brand and manufacturing site will supply the project.
SAMSON
CONTROL VALVES · ACTUATORS · POSITIONERS
SAMSON is a specialist control-valve manufacturer. Its range covers general process control as well as demanding duties. In addition, its modular packages combine valve bodies with pneumatic or electric actuators, positioners, solenoid valves and limit switches.
Portfolio to explore
- Globe, angle and three-way control valves
- High-pressure and severe-service valve designs
- Cryogenic, hygienic and other special-purpose valves
- Actuators, positioners and valve accessories
Engineers should review the selected valve type, pressure class, body and trim materials, temperature range and available actuator / positioner combination in the current product documentation.
IMI Critical Engineering
SEVERE SERVICE · IMI CCI / DRAG®
IMI groups its control valves into general, semi-severe and severe-service ranges. Its technology platforms include IMI CCI, DRAG, ABJ, IMI Zikesch and Bopp & Reuther. As a result, the portfolio is useful for duties where noise, erosion, pressure drop and reliability need close attention.
Portfolio to explore
- General and severe-service control valves
- High-energy steam and power-generation valve solutions
- Multistage / pressure-reduction technologies and specialist trim
- Pneumatic, hydraulic and electric actuator options
For high-energy services, compare the full pressure-reduction strategy, outlet velocity, noise prediction, trim materials and maintenance requirements — not only the nominal valve size.
Nihon KOSO Group — KOSO / Kent Introl
PROCESS CONTROL · OIL & GAS · SUBSEA
Nihon KOSO develops control valves, actuators, instruments and accessories. Meanwhile, Kent Introl remains a specialist part of the KOSO group, with engineered valve solutions for oil and gas and other demanding industries.
Portfolio to explore
- KOSO globe and rotary control-valve products; verify the exact modulating series
- Actuators, smart positioners and accessories
- Kent Introl high-performance globe and angle control valves
- Surface choke, subsea control and choke valves, and anti-surge solutions
Kent Introl is particularly relevant when the duty involves high pressure, subsea service, choke control or compressor anti-surge applications. Confirm the exact pressure envelope, material requirements and qualification scope for the selected series.
ARCA Flow Group — including Forbes Marshall ARCA
INDUSTRIAL CONTROL · STEAM CONDITIONING · INDIA JV
ARCA makes industrial control valves, including globe, rotary and three-way designs, as well as steam-conditioning products. In India and the wider subcontinent, Forbes Marshall ARCA markets a defined range under its joint-venture arrangement with ARCA Regler GmbH. Therefore, it is best shown as a regional route to market, not as a second independent global OEM.
Portfolio to explore
- ARCA ECOTROL globe and rotary control-valve families
- POWERTROL steam-conditioning solutions
- DUALVENT double-seated and TRIVENT three-way valves
- Forbes Marshall ARCA ECOTROL Series 200 and regional control-valve packages
For an India project, confirm whether the offer is from ARCA or Forbes Marshall ARCA, the exact product / datasheet, territorial availability, manufacturing site and legal manufacturer of record. The official Forbes Marshall product page identifies ECOTROL Series 200 as a Forbes Marshall ARCA product and limits its stated availability to India and the Indian subcontinent.
KSB — MIL Controls
INDIA MANUFACTURING · MIL® CONTROL VALVES
KSB MIL Controls Limited is a subsidiary of KSB SE & Co. KGaA. It makes control valves for process plants and has an established manufacturing base in India. Its range includes general-service valves and designs for high pressure drop, noise and cavitation. KSB MIL also lists automatic recirculation valves. However, these protect pump minimum flow and are not conventional modulating control valves.
Portfolio to explore
- MIL 10000, 21000, 27000 and 41000 general / heavy-duty valves
- MIL 77000, 78000 and 91000 multistage / severe-service valves
- MIL 81000 three-way valves and actuator families
- Related automatic recirculation valve products — evaluate as a separate minimum-flow protection function, not as a conventional modulating control-valve series
Important brand clarification: KSB states that MIL Controls originally operated as Masoneilan Valves India Limited. Today, KSB MIL is a KSB subsidiary. Do not confuse the current MIL brand with the Masoneilan control-valve business of Baker Hughes.
Azbil Corporation
PROCESS AUTOMATION · CONTROL VALVES
Azbil supplies industrial control valves, actuators, smart positioners and maintenance tools. Its range includes single-seat, cage-guided, double-seat, angle, three-way and eccentric rotary designs. It also offers special-purpose valves for selected services.
Portfolio to explore
- 6000 Series control valves, introduced for industrial process applications
- General-purpose and special-purpose valve families
- Smart valve positioners and accessories
- PLUG-IN Valstaff control-valve maintenance-support system
Azbil announced the 6000 Series for sale from 1 October 2025, with the product designed around IEC 60534 conformity and plant lifecycle maintainability. Review the exact current model and certification documents for the project.
Bray International
ROTARY CONTROL · BUTTERFLY · SLURRY VALVES
Bray publishes a dedicated industrial control-valve range alongside its wider valve and actuator products. For example, its control products include V-Control ball valves, Series 19/19L segmented-ball valves and Series 39 slurry control valves. It also lists high-performance butterfly valves for control applications.
Portfolio to explore
- V-Control control ball valve
- Series 19/19L segmented-ball valves
- Series 39 slurry control valve
- High-performance butterfly valves, positioners and actuators for modulating packages
Bray is a useful addition when evaluating rotary control solutions, large-bore butterfly arrangements and slurry-related applications. Confirm the flow characteristic, rangeability, shut-off requirement, actuator sizing and suitability for the fluid and operating envelope; do not assume every butterfly or ball valve in the wider catalogue is offered as a modulating control valve.
Mokveld
AXIAL CONTROL · ANTI-SURGE · CHOKE VALVES
Mokveld is a Netherlands-based engineered-valve manufacturer with a long history in oil, gas and water. By contrast with conventional globe or rotary designs, its axial control valves are built for selected critical duties. The company states that it supplied its first axial control valves in 1968 and lists applications in oil and gas, water and hydropower.
Portfolio to explore
- Axial control valves
- Axial anti-surge / recycle control valves
- Axial and angle choke valves
- High-capacity, low-noise and anti-cavitation trim options
Mokveld should be considered for application-specific reviews involving compressor anti-surge, high-pressure gas, choke duty, water transmission, hydropower and severe cavitation risk. Check the required pressure envelope, materials, actuator arrangement, dynamic response and project references.
Spirax Group — Spirax Sarco and GESTRA
STEAM · THERMAL SYSTEMS · CONTROL VALVES
Spirax Sarco publishes control valves for steam and other industrial fluids. These include Spira-trol two-port valves and Steri-trol clean-service valves. Similarly, GESTRA, another Spirax Group business, publishes control valves for steam, condensate and severe-service applications. The two businesses are grouped here because they belong to the same group.
Portfolio to explore
- Spirax Sarco Spira-trol general-service control valves
- Steri-trol clean-service control valves
- Low-noise and multi-stage / anti-cavitation trim options where specified
- GESTRA control valves for steam, condensate and severe-service duties, including ZK-type valves
This is an important supplier group for steam systems, utilities, heat transfer, thermal oil and clean-process services. Do not assume that a self-acting pressure regulator and a signal-driven modulating control valve are interchangeable; identify the exact control objective and valve type.
Schubert & Salzer Control Systems
GERMAN CONTROL TECHNOLOGY · PROCESS VALVES
Schubert & Salzer makes industrial control and stop valves and serves customers through subsidiaries and partners. Its published range includes seat, sliding-gate, ball-sector, segmented-disc and sanitary valves. It also supplies positioners and electric actuators.
Portfolio to explore
- Globe, angle-seat and three-way seat valves
- Sliding-gate control valves
- Ball-sector valves for abrasive and slurry applications
- Segmented-disc valves, positioners and electric actuators
The product family is broad, but each design has its own service envelope. Evaluate the selected valve’s characteristic, rangeability, shut-off requirement, solids handling, actuator and available process connections against the actual duty.
SchuF
SEVERE PROCESS CONTROL · SPECIALTY VALVES
SchuF is a specialist valve manufacturer with German roots. It focuses on process control valves for chemical, petrochemical, refining, polymer and pharmaceutical plants. In particular, its current range highlights engineered angle valves for difficult operating conditions.
Portfolio to explore
- Angle control valves for high pressure and temperature drops
- Special designs for corrosive, erosive, flashing and crystallising services
- Bottom-outlet and specialty process valves
- Application-specific trim, flushing and material options
SchuF is a specialist rather than a like-for-like substitute for every general-service valve OEM. Its angle-control design approach is particularly relevant where flashing, slurry, polymerisation, deposits or severe erosion challenge conventional valve geometries.
ARI-Armaturen
STEVI® · STEAM AND PROCESS CONTROL
ARI-Armaturen is a German industrial-valve manufacturer with a dedicated STEVI control-valve family. For example, its published range includes standard and compact valves, high-performance designs for critical duties and three-way valves for mixing or diverting flow. ARI also offers positioners and actuator packages.
Portfolio to explore
- STEVI Smart and STEVI Vario general / compact control valves
- STEVI Pro high-performance control valves
- Three-way mixing and diverting control valves
- STEVI-Pos digital electro-pneumatic positioner and actuator options
ARI is a credible option for steam, thermal, process and plant-engineering duties. Its Indian subsidiary states that it has manufacturing, assembly and testing capability in Pune; still confirm the manufacturing site and product scope for each project offer.
Bürkert
PROCESS VALVES · ANGLE-SEAT CONTROL
Bürkert is a global fluid-control specialist with a published process-control valve range. Its Type 2300 ELEMENT is a pneumatic, two-way angle-seat control valve. In addition, it can be combined with Bürkert automation modules, including digital electro-pneumatic positioners and process controllers.
Portfolio to explore
- Type 2300 angle-seat control valve
- Integrated positioner and process-controller options
- Stainless-steel process-valve configurations
- Related process valves for hygienic, chemical and utility applications
Bürkert is best represented as a specialist process-valve supplier in this list, not as a direct substitute for large-bore, high-pressure oil-and-gas severe-service OEMs. Check the product-specific pressure, temperature, flow, connection, material and automation limits.
Celeros Flow Technology — Copes-Vulcan
SEVERE DUTY · STEAM CONDITIONING · CRITICAL SERVICE
Copes-Vulcan is a long-established control-valve brand within Celeros Flow Technology. The company identifies it as a maker of control valves, actuators and steam-conditioning equipment for liquids, vapours and gases. Its stated markets include power generation, oil and gas, petrochemicals, industry and nuclear energy.
Portfolio to explore
- Severe-duty control valves
- Steam-conditioning and desuperheating equipment
- Actuators and engineered valve assemblies
- Application support, field service and aftermarket services
Copes-Vulcan is particularly relevant when the duty involves high-energy steam, large pressure drops, high temperatures or demanding vibration conditions. Review the exact control-valve series, trim design, actuator package and test documentation against the project operating cases.
Trillium Flow Technologies
GLOBE · BUTTERFLY · MISSION-CRITICAL FLOW CONTROL
Trillium Flow Technologies publishes a dedicated control-valve range with globe and butterfly designs. In addition, the group manages established brands such as Blakeborough, Red Point and Tricentric across its wider flow-control business. When reviewing an offer, identify the exact control-valve design and brand.
Portfolio to explore
- Globe control valves
- Butterfly control valves
- Application-specific legacy valve brands and aftermarket support
- Valve solutions for oil and gas, power generation, water and general industry
Do not treat every Trillium brand or valve product as a modulating control valve: the group also offers isolation, choke and relief-valve families. During EPC bid evaluation, identify the exact control-valve brand, series, control characteristic, manufacturing location and manufacturer of record.
Severn Glocon is now part of Valmet. Valmet completed its acquisition of Severn Group on 1 July 2026. The transaction covered Severn Glocon, ValvTechnologies and LB Bentley. For a 2027 vendor list, show Severn Glocon under the Valmet group while retaining the product brand name where it appears in specifications and installed-base records.
03Important distinctions
Control Valve Manufacturer vs. Actuator or Automation Supplier
Understand each supplier’s role in the package
Vendor lists often mix control-valve makers with actuator makers, positioner suppliers, automation companies and distributors. These suppliers may all be part of one valve package. However, they do not all make the pressure-containing valve body and trim.
| Supplier category | What it typically provides | What to confirm in the requisition |
|---|---|---|
| Control valve OEM | Valve body, trim, design engineering, sizing and testing | Manufacturer of record, series, manufacturing site, design and test standards |
| Actuator OEM | Pneumatic, electric or hydraulic actuator and controls | Actuator model, thrust / torque, fail action, duty rating and interfaces |
| Positioner / instrument OEM | Valve positioner, feedback, diagnostics and accessories | Input signal, protocol, hazardous-area approval, SIL suitability where specified |
| Distributor / service partner | Local supply, commissioning, spares, repair and support | Current written OEM authorization, territory, product scope and warranty |
A complete control-valve package can involve more than one manufacturer. Therefore, the technical bid evaluation should identify each party’s scope.
Do not assume that an actuator brand or authorised distributor made the control valve. Instead, state each party’s responsibility in the purchase requisition and technical bid evaluation. Include valve design, body and trim manufacture, actuator sizing, positioner supply, assembly, testing and after-sales support.
04Engineering selection
How to Select the Right Control Valve Manufacturer for an EPC Project
A well-known name does not guarantee that a valve suits the service. First, confirm the process requirement. Then review the full valve assembly and the supplier’s ability to design, manufacture, test and support it.
Start with the process data and operating cases
- Freeze the process design basis. Confirm minimum, normal and maximum flow cases; inlet and outlet pressures; temperature; fluid composition; density / molecular weight; vapour pressure; viscosity; operating modes and credible upset cases. Reconcile the datasheet with the latest process data and line list.
- Review sizing and controllability. Check calculated
CvorKv, selected rated capacity, valve travel at minimum / normal / maximum flow, rangeability, inherent characteristic and installed performance. Confirm the sizing method and assumptions against the project specification and applicable edition of IEC 60534 / ISA 75.01.01. - Identify the actual valve problem to be solved. Assess choked flow, cavitation, flashing, aerodynamic or hydrodynamic noise, vibration, erosion, corrosion, solids and two-phase flow. Select standard or special trim based on the calculation and application review, not on a generic product description.
- Check materials and pressure-temperature limits. Verify body, bonnet, trim, stem, packing, gasket and bolting materials against process corrosion, erosion, temperature, pressure class and piping material requirements. Confirm sour-service, oxygen, hydrogen or other special requirements when applicable.
- Verify actuator sizing and failure action. Confirm fail-open, fail-close or fail-in-place requirement; available instrument-air pressure; shutoff differential pressure; required thrust / torque; spring range; stroking time; and mechanical limits. Use minimum available air pressure for the relevant sizing check.
- Review positioner and accessories. Confirm 4–20 mA, HART, FOUNDATION Fieldbus, PROFIBUS or other project-required interfaces; hazardous-area certification; enclosure rating; feedback; solenoid valves; limit switches; air filter regulators; boosters and volume tanks as applicable.
- Verify leakage, emissions and testing requirements. Confirm seat-leakage class, fugitive-emission requirements, fire-safe requirements if applicable, pressure testing, functional testing, material traceability, inspection and FAT scope. Do not assume a certification applies to every size, trim or valve configuration.
- Evaluate lifecycle support. Check local service capability, trained technicians, spare-parts availability, repair turnaround, installed-base references, calibration / diagnostic tools and support for the specific model and manufacturing site.
Use this checklist during technical bid evaluation
- Technical compliance: offered valve meets the requisition, datasheet, line class, design code and project specifications.
- Capacity and travel: selected
CvorKvis supported by sizing calculations for all required operating cases. - Special trim: noise, cavitation, flashing, erosion and high pressure-drop cases are addressed with documented calculations and design details.
- Actuator adequacy: thrust / torque and fail action are confirmed at the project-defined minimum and maximum supply conditions.
- Instrumentation compatibility: positioner protocols, hazardous-area approvals, accessories and control-system interfaces are compliant.
- Quality and documentation: ITP, QAP, certificates, inspection records, test reports, drawings, datasheets and O&M manuals are defined.
- Supply-chain traceability: manufacturing location, subcontractors, country of origin and any local assembly / testing scope are declared.
- Lifecycle support: warranty, commissioning, spares, repair capability and regional service contacts are confirmed.
For a critical valve, evaluate the offered valve series and trim configuration rather than approving the supplier name alone. Two valves from the same manufacturer can have very different suitability depending on body style, trim, materials, actuator and application-specific options.
05Technical fundamentals
What Makes a Control Valve Suitable for a Process?
A control valve is a pressure-containing assembly whose function is to manipulate flow in response to a control signal. A typical assembly contains a valve body and trim, actuator, and often a valve positioner with accessories. It is selected to deliver the required capacity and controllability while meeting mechanical integrity, leakage and lifecycle requirements.
Control valve vs. pressure safety valve
A modulating control valve changes its opening to regulate a process variable. By contrast, a pressure safety valve (PSV) opens at a set pressure to protect equipment from overpressure. These devices have different jobs. Therefore, do not describe a control valve as a safety-relief valve unless a separate, approved protective function has been designed.
What is Cv?
Valve flow coefficient, Cv, is the number of US gallons of water at 60 °F that pass through a valve per minute with a pressure drop of 1 psi under the defined reference conditions. The metric flow coefficient is commonly expressed as Kv, in cubic metres per hour for water with a pressure drop of 1 bar, using the applicable standard definition. Do not compare Cv and Kv numerically without conversion and consistent conditions.
Common control valve design families
| Design family | Typical construction / motion | Common application lens |
|---|---|---|
| Globe / angle | Linear stem and plug movement | General process control, high pressure drop and engineered trim options |
| Segmented ball | Quarter-turn rotary motion | Higher capacity, wide control range and process services suited to the design |
| Butterfly | Quarter-turn disc rotation | Large line sizes and lower-pressure-drop duties, subject to controllability check |
| Eccentric plug | Rotary plug with eccentric geometry | Process duties where capacity and resistance to fouling / wear are considered |
| Three-way | Mixing or diverting flow paths | Temperature control, heat-transfer and flow distribution services |
| Multistage / labyrinth | Pressure drop distributed across multiple stages or passages | High pressure-drop, noise, cavitation or erosion control where engineered |
06Standards and references
Standards and Technical Documents to Check
Main standards for industrial control valves
Project specifications and applicable editions take precedence. For example, IEC 60534 and ISA 75 cover several sizing and performance topics. However, the exact scope and edition must match the project code list.
| Standard / reference | Typical topic | Engineering use |
|---|---|---|
| IEC 60534 series | Industrial-process control valves | Terminology, sizing equations, testing, dimensions, noise and performance topics across relevant parts |
| ISA 75 series | Control-valve standards and practices | Commonly referenced alongside IEC 60534 for sizing, capacity, testing and installation dimensions |
| ANSI/FCI 70-2 | Control valve seat leakage | Specify and verify the required leakage class |
| ISO 15848 | Industrial valves — fugitive emissions | Use where the project specifies fugitive-emission qualification / testing |
| Project specifications | Material, inspection, testing, actuator, positioner and documentation requirements | Define the contractual acceptance basis and any additional requirements |
Always verify current editions, amendments and the adopted project code list before applying a standard.
07Questions engineers ask
Frequently Asked Questions
Which company is the number one control valve manufacturer?
There is no verified number-one supplier across every control-valve type and region. Market reports use different methods and may list different companies. For an EPC project, the best choice depends on the duty, approved-vendor requirements, engineering support, factory and service network.
Brand ownership and supplier relationships
Are Fisher and Emerson the same company?
Fisher is a control-valve brand within Emerson’s Final Control portfolio. In practice, use current Emerson product documents when reviewing a Fisher offer. Also confirm the actual manufacturing location and supplying entity.
Is Masoneilan part of KSB MIL?
No. Masoneilan is a Baker Hughes control-valve brand. By contrast, KSB MIL Controls Limited is a subsidiary of KSB. KSB notes that MIL Controls originally operated as Masoneilan Valves India Limited, but the current MIL business belongs to KSB. Therefore, treat the present-day companies and brands separately.
Is Severn Glocon still an independent company?
Valmet completed its acquisition of Severn Group on 1 July 2026. As a result, Severn Glocon is now part of Valmet’s expanded flow-control portfolio. Check the current legal entity and sales channel on project documents.
Is Kent Introl part of KOSO?
Yes. Kent Introl’s official company information states that it is part of the Nihon KOSO Group. Similarly, its specialist range includes control valves, choke valves and subsea solutions.
Technical selection and specialist applications
Which control valve manufacturer is best for severe service?
There is no single best supplier for every severe-service duty. Instead, compare the trim design, pressure-reduction stages, noise and cavitation calculations, materials, actuator sizing and test evidence. Also review references for the same type of fluid and operating range. IMI CCI, Masoneilan, Valtek, KSB MIL, Kent Introl and Valmet / Severn Glocon all publish specialist products, but suitability still depends on the exact service.
What should be checked before approving a control valve vendor?
Before approval, review technical compliance, sizing calculations, the selected valve series and trim, material compatibility, actuator thrust / torque, fail action, positioner and accessories. Also check leakage class, certificates, inspection and test documents, manufacturing location, warranty and local service support.
Does the largest control valve manufacturer always offer the best technical solution?
No. A global manufacturer may offer broad support and product coverage. However, a specialist may have deeper experience in a narrow application. Therefore, size and select the valve for the process, then check that the offered configuration meets the project specification.
Why are Mokveld, SchuF and other specialist manufacturers included?
These companies publish real control-valve ranges, but their strongest applications differ. For example, Mokveld focuses on axial control, anti-surge and choke valves; Bray on rotary and slurry control valves; and Copes-Vulcan on severe-duty and steam-conditioning services. Trillium publishes globe and butterfly control valves, while SchuF focuses on severe-process duties. Similarly, Spirax Sarco and GESTRA cover steam and process-fluid control, Schubert & Salzer offers industrial valve technologies, ARI publishes STEVI control valves, and Bürkert focuses on compact process-control valves. Evaluate each supplier against the actual service rather than treating them as identical alternatives to large global OEMs.
Why are ARCA and Forbes Marshall ARCA shown as one entry?
Forbes Marshall ARCA is a regional joint-venture offering connected to ARCA Regler GmbH. Therefore, it is useful to show the India-specific product and support route, but counting it as a separate global OEM alongside ARCA would overstate the number of independent manufacturer groups.
08Source verification
Manufacturer Sources and Research Method
How we checked the supplier list
This article is a practical vendor guide, not a complete list of every regional manufacturer. It does not rank companies by market share, revenue, installed base or quality. Official product pages confirm that a supplier publishes a product family. However, they do not prove that every model is approved for every project or suitable for every service. Before procurement, confirm the legal manufacturer, supplying entity, factory, datasheet revision, certificates and local support scope.
Official manufacturer sources
- Emerson — Fisher control valves
- Baker Hughes — Masoneilan
- Flowserve — Valtek
- Valmet — Control valves
- Valmet — Severn / severe-service portfolio
- Valmet — Severn acquisition completed, 1 July 2026
- SAMSON Group
- IMI — Control valves
- Nihon KOSO — Products
- Kent Introl — Product range
- ARCA — Control valves
- Forbes Marshall ARCA — ECOTROL Series
- KSB — MIL product range
- Azbil — Control valves and actuators
- Mokveld — Axial control valves
- Mokveld — Company background
- Spirax Sarco — Control valves
- GESTRA — Severe-service control valves
- Schubert & Salzer — Product overview
- SchuF — Control valves
- SchuF — Company history
- ARI-Armaturen — STEVI control valves
- ARI-Armaturen India — Manufacturing and service
- Bürkert — Type 2300 control valve
- Bray — Control valve product family
- Bray — Integrated control-valve solutions
- Celeros Flow Technology — Copes-Vulcan
- Trillium Flow Technologies — Control valves
- Trillium Flow Technologies — Valve brands
Final word
Choosing from the top control valve manufacturers is an engineering decision
The global control-valve market includes large process-automation groups and specialist manufacturers. Some focus on axial or rotary control, while others focus on steam, severe-service chemistry, sanitary processing, power or subsea applications. In this guide to top control valve manufacturers, related brands are grouped under their parent companies. The article also reflects Valmet’s 2026 purchase of Severn Group and includes specialist suppliers with published control-valve ranges. In short, this is a practical engineering shortlist rather than a popularity contest.
For an EPC project, do not choose a supplier only because it appears in a “top 10” list. First, confirm the process conditions and size the valve. Next, review the complete assembly and check its quality and certificates. Finally, make sure the supplier can support the equipment throughout its service life. This is a better way to shortlist top control valve manufacturers for a real project.
If you are reviewing a control-valve datasheet or vendor offer, these WOIN resources will help you take the next step:
I also share practical instrumentation and control engineering guides on YouTube. Follow WOIN for more engineering resources, tools and technical discussions.
Content reviewed on 01 November 2026. This is a non-ranked editorial shortlist of 19 manufacturer groups / suppliers. Product availability, ownership, regional supply arrangements and certifications can change; confirm directly with the manufacturer before procurement or specification.
