Valvulas Zubi

What Valvulas Zubi does

Valvulas Zubi S.L. is a privately-held Spanish industrial valve manufacturer founded in 1979 and headquartered in Irún, Basque Country. The company designs, manufactures, and services four primary valve families—knife gate valves (T200/T300/T400/T500/T700 series), diaphragm valves (T100/T85/T99/T100E), check valves (T113AR/T114AR/T115AR), and penstock valves (VMCL/VCTL)—along with in-house pneumatic actuators. Production is vertically integrated within a 5,000+ square-meter plant encompassing R&D, engineering, raw material warehousing, machining, coating, assembly, and 100% hydrostatic testing. With over 8,500 valve developments accumulated and a 40+ year operating history, Zubi serves enterprise industrial buyers across at least ten verticals including marine, desalination, chemical and petrochemical, power generation, water and wastewater, pulp and paper, mining, biomass, powder and bulk handling, and food and beverage.

The company generates revenue through a combination of standardized commodity valves (over 7,000 developments, 5-15 day delivery), custom-engineered valves (over 8,500 developments, 2-10 week delivery), special/turnkey projects, and aftermarket services covering maintenance, spare parts, and repairs. Pricing is quote-based with no public catalog; commercial engagement is handled via direct enterprise field sales, a private customer portal for drawings and 3D models, and recurring participation at major industry trade shows (Valve World Expo, ACHEMA). Geographically, Zubi reports a commercial presence in more than 50 countries with an export ratio of approximately 90%, supported by ISO 9001:2015, CE/PED, UKCA, and ATEX certifications.

The business is independently owned with no identified parent, venture, or private equity investors, and has been self-funded through operations since founding. Revenue, headcount, and ownership specifics are not publicly disclosed. Recent strategic activity has focused on product portfolio extension (T500 and T700 launches), plant expansion (2018), quality certification (ISO 9001:2015 in 2019), regulatory positioning for UK and ATEX markets, and brand modernization (2022 corporate rebrand), suggesting a stable, capability-driven mid-market industrial operator rather than a high-velocity growth vehicle.

Name

Valvulas Zubi

Legal name

VALVULAS ZUBI S.L.

Website

https://valvulaszubi.com

Company type

Private

Founded year

1979

Operating status

Operating

Headcount range

11–50 employees

Short description

Valvulas Zubi is a privately-held Spanish industrial valve manufacturer founded in 1979, producing knife gate, diaphragm, check, and penstock valves plus pneumatic actuators for enterprise customers in marine, desalination, chemical, water/wastewater, and other process industries across 50+ countries.

Ownership category

akta.pro rank

Product category

Industrial Valve Manufacturing

NAICS

Industrial Valve Manufacturing (332911), Metal Valve Manufacturing (33291), Other Metal Valve and Pipe Fitting Manufacturing (332919)

SIC

Gaskets, Packg & Sealg Devices & Rubber & Plastics Hose (3050)

akta.pro primary industry

Pipes & Tubing (Metal, Plastic & Composite) (IMADALAC)

akta.pro secondary industry

Expansion Joints, Flexible Connectors & Compensators (Rubber/Fabric) (IMANALAF)

Keywords

• Industrial valve manufacturing
• Knife gate valves
• Diaphragm valves
• Check valves
• Penstock valves

Headquarters

HQ city

Irún

HQ country

Spain

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Supply Chain, Technology or R&D, Infrastructure, Marketing or Sales, Others

Revenue model

1. Industrial Valve Sales: Core revenue from manufacturing and selling industrial valves including knife gate valves, diaphragm valves, check valves, and penstock valves. Products available in standardized, custom-made, and special configurations.
2. Aftermarket Services: Revenue from maintenance services, spare parts supply, and repair services for installed valves. The company maintains large stock of valve spares including bodies, gates, and rubber components.
3. Customization and Engineering Services: Value-added services including custom valve configurations, special designs based on customer criteria, and engineering support for specific applications.

Pricing tiers

Go-to-market motion3 records

Distribution channels3 records

Marketing channels6 records

Core offering

Valvulas Zubi is a Spanish industrial valve manufacturer established in 1979, designing and producing knife gate valves, diaphragm valves, check valves, and penstock valves, complemented by pneumatic actuators. The company operates a vertically integrated manufacturing plant in Irún (Basque Country) covering casting, machining, coating, assembly, and 100% hydrostatic testing, and offers standardized, custom-made, and special valves along with maintenance, spares, and quality control services to industrial customers globally.

Product overview

Valvulas Zubi is a valve manufacturer since 1979 offering an integrated portfolio of industrial valves and related services. Their product portfolio includes four main valve types: Knife Gate Valves (T200, T300, T400, T500, T700 series plus RC and Square models), Diaphragm Valves (T100 weir, T85 straight through, T99 threaded, T100E angled), Check Valves (T113AR tilting disk, T114AR disk, T115AR ball series), and Penstock Valves (VMCL wall, VCTL channel), complemented by pneumatic actuators (double acting and single acting). Beyond products, they offer value-added services including standardized valves (7,000+ developments), custom made valves (8,500+ developments), special/custom valves, maintenance and repairs, and quality control testing. Their manufacturing plant in Irun, Spain spans over 5,000 square meters with in-house machining, coating, assembly, and testing capabilities. Products serve demanding industries including marine, desalination, chemical & petrochemical, power generation, water & wastewater, biomass, pulp & paper, powder & bulk handling, mining, and food & beverage.

Differentiator

Problem solved

Functional benefit

Products and services

• T200 Knife Gate Valve Unidirectional and bidirectional monoblock body design knife gate valve for general industrial applications. Available in standard, LUG, and TAPPI (MSS SP-81) versions with seating wedges, directional arrows, and high flow rates with low pressure drop.
• T300 Through Conduit Knife Gate Valve Bidirectional wafer type self cleaning knife gate valve with a central round shaped through-going 'o' ported knife designed for safe and total shut-off against static and highly concentrated pulps.
• T400 Silo Type Knife Gate Valve Unidirectional wafer monoblock valve engineered for bulk handling applications and discharge of powders and solids, with OFF seat position to prevent solid accumulation in silo outlets.
• T500/T500BI High Pressure Knife Gate Valve Unidirectional and bidirectional bolted bonneted flanged type high pressure design knife gate valve rated to PN25 with single piece monoblock body and internal wedges providing full tightness to atmosphere.
• T700 Single Seat Bidirectional Knife Gate Valve Monoblock body design full bore bidirectional shut-off valve with zero leakage shut-off up to 10 bar to DN250, special seal housing design avoiding build-up, and U-profile perimeter resilient seat with internal reinforced steel core.
• RC Round Square Knife Gate Valve Heavy duty knife gate valve with round inlet and square outlet designed for handling difficult applications in recycling, rubbish or sand traps, and silo outlets with solid material.
• T300 Short Slurry Knife Gate Valve Bidirectional slurry knife gate valve equipped with two abrasion resistant rubber sleeves protecting the body, with internal cleaning/maintenance flushing ports.
• Fabricated Single Wedge Knife Gate Valve Single wedge unidirectional or bidirectional knife gate valve design with full flange welded sturdy construction ideal for high pressure and severe working conditions.
• Square Model Knife Gate Valve Square/rectangular port fabricated knife gate valve with welded body construction made from fabricated steel, stainless steel and special alloys.
• T100 Weir Diaphragm Valve Bidirectional monoblock casted body bolted bonneted weir type diaphragm valve with lined and unlined options for general industrial corrosive and abrasive applications up to 15% solid services.
• T85 Straight Through Diaphragm Valve Bidirectional full bore monoblock casted body bolted bonneted straight through diaphragm valve with lined and unlined options for high abrasive fluids.
• T99 Threaded Weir Diaphragm Valve Bidirectional monoblock casted body bolted bonneted diaphragm valve with threaded connection for corrosive and abrasive applications.
• T100E Angled Shape Diaphragm Valve Bidirectional monoblock casted body bolted bonneted angled shape diaphragm valve with lined and unlined options for corrosive and abrasive applications.
• T113AR Tilting Disk Check Valve Unidirectional metal seated oblique angled check valve preventing fluid return through the pipe with auxiliary spring option to improve closing time and reduce water hammering, rated up to PN40.
• T114AR Disk Check Valve Flanged check valve made in two parts with central rubber coated disc available in many different rubber linings for corrosive and abrasive duties.
• T115AR Ball Check Valve Self cleaning unidirectional flanged type ball check valve where the ball rotates during operation, eliminating the risk of impurities getting stuck.
• T115-99AR Threaded Ball Check Valve Self cleaning unidirectional threaded ball check valve with BSP and NPT connections for water and low charged liquids applications.
• VMCL Wall Penstock Valve Wall penstock valve ensuring watertightness on all four sides with wedged system providing pressure on the seat when the gate is in closed position; used for on-off or control applications in wall-mounted configurations.
• VCTL Channel Penstock Valve Channel penstock ensuring tightness on three sides (bottom and two sides) with sealing in the penstock seat area for open channel applications.
• Double Acting Pneumatic Actuators Double acting pneumatic actuators specifically designed to suit Zubi Valves knife gate valves, with special design and adaptations according to customer requirements and one-piece NBR vulcanized piston design.
• Single Acting Pneumatic Actuators Single acting pneumatic actuators with fail-to-close and fail-to-open versions available, specifically designed to suit Zubi Valves knife gate valves.
• Standardized Valves Service Standard commodity valves with quick assembly and delivery. Over 7,000 standardized developments available with general delivery between 5 to 15 days.
• Custom Made Valves Service Value-added standard valves with completely customizable valve bodies and parts. Over 8,500 developments available with delivery between 2 to 10 weeks depending on configuration.
• Special Valves Service Special custom-made valves with turnkey solution from initial enquiry and engineering through to production and delivery for the most demanding customer requirements.
• Maintenance, Spares and Repairs Service Valve maintenance and repair services with a large stock of valve spares including bodies, gates, and rubber components, plus a second life repair service for installed valves.
• Quality Control Service Quality assurance and control during the production process with 100% tested valves on test bench using hydrostatic tests for seal and body tightness, supporting ISO 9001:2015 compliance.

Quantifiable outcome

• More than 8,500 valve developments available
• +3 more outcomes

Named customers4 records

Segments10 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Scale indicators5 records

Recent moves9 records

Expansion highlights5 records

Broad incumbents

• Crane Co. (Crane ChemPharma & Energy): Diversified industrial manufacturer with a dedicated process flow solutions segment covering severe-service valves, check valves, and diaphragm valves. Overlaps significantly with Zubi's chemical, petrochemical, and water-treatment focus.
• Pentair plc: Large diversified water and flow technologies company with a substantial industrial valves portfolio. Overlaps with Zubi in water & wastewater and industrial process applications but offers broader pump, treatment, and filtration solutions beyond the valve niche.
• ITT Inc. Engineered manufacturer of highly engineered components including industrial valves, pumps, and motion technologies. Competes in chemical, energy, and mining process flows with a similar engineered-to-order value proposition for severe-service applications.
• KSB SE & Co. KGaA: German global manufacturer of pumps, valves, and related systems serving water, mining, energy, and chemical sectors. Comparable in vertical specialization (severe-service and industrial process valves) and in targeting the same European industrial OEM and EPC base.
• Flowserve Corporation: Global leader in industrial pumps, valves, seals, and flow control automation. Competes head-on with Zubi in chemical, power, water, and mining applications through a much larger installed base and broader actuation/automation offering.

Direct peers

• Velan Inc. Long-established global manufacturer of industrial valves including knife gate, check, and severe-service valves for chemical, power, oil & gas, and pulp/paper. Comparable in product breadth, custom-engineering capability, and ISO-certified quality systems serving process industries.
• Orbinox: Spanish-headquartered manufacturer specializing in knife gate valves, penstock valves, and related industrial flow control products. Highly comparable product range to Valvulas Zubi across the same core valve categories and similar end-market focus on water, mining, pulp/paper, and chemical applications.
• AVK Holding A/S: Denmark-based group manufacturing a wide range of valves for water, gas, and industrial applications. Overlaps with Zubi in water/wastewater and industrial segments and matches Zubi's model of combining standardized catalog products with custom-engineered configurations.
• DeZURIK: Manufacturer of knife gate valves, control valves, and other industrial flow control products serving water/wastewater, pulp/paper, mining, and power generation. Direct portfolio overlap with Zubi's T-series knife gate, check, and penstock valve lines.

Emerging players

• GEFA Processtechnik (Strahman Group): German manufacturer focused on knife gate valves and process equipment for industrial applications. A smaller, more niche competitor to Zubi with comparable specialty in knife gate valves for chemical, paper, and bulk solids handling.

Market position

Strengths5 records

Weaknesses7 records

Competitive moat4 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/valvulaszubi
• YouTubeyoutube.com/channel/UCB__196mSJFFe96dqzx_D1w
• LinkedInlinkedin.com/company/valvulas-zubi-sl

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Valvulas Zubi