Valves and Actuators

Global Leader in Valve Distribution and Engineered Actuation Solutions

MacLean Valves, a division of MacLean International and part of the DNOW group, is a global distributor of manual and actuated valves. As a member of the DNOW family, we stand as one of the largest global suppliers, offering complete valve solutions. We service both maintenance/repair and project markets, delivering high-quality valves and expertly engineered actuation packages. Our highly trained and skilled technicians provide full valve support, from bespoke modifications at our Total Valve Solution (TVS) sites to handling large, complex projects and swift solutions for tight schedules.

Our History of Industry-Leading Valve Solutions and Global Reach

MacLean Valves serves as the trading division for manual and actuated valve solutions. Originally established as Capital Valves in 1979, we boast a rich legacy of over 40 years, with a strong record in project supply. We offer an extensive range of high-specification products from industry-leading manufacturers. As part of DNOW, one of the world's largest PVF distributors, we enjoy the advantages of their global reach, distribution network and vast inventory in key locations worldwide.

MacLean History Timeline

Our Strengths

  • Global Network – we can support your site construction and field operations from our strategic locations
  • Established Supply Chain – we maintain an extensive and audited supply chain of high-quality valves from around the world
  • Comprehensive Stock – strategically located stock when you require valves and actuation to meet time sensitive deadlines
  • One-stop solution – project supply, distribution, actuation, modifications, repair and site services – we offer a comprehensive solution

Comprehensive Valve Portfolio

Contact us today to learn about our extensive collection of valve solutions, tailored for a vast array of industrial needs. From manual to actuated, our range promises durability, efficiency and the highest standards of performance. Whether you're in Europe, Australia or beyond, our portfolio stands ready to address your most demanding applications, ensuring every project benefits from top-quality products.














Double Block
and Bleed












Pressure Seal


Safety Relief

Precision and Reliable Services for Unique Challenges

Utilising the DNOW team of experienced engineers and technicians in strategic locations, we can deliver a complete range of services. These services not only adhere to stringent material specifications, but also align with the top-tier performance benchmarks that are vital to guaranteeing mechanical integrity. Our collaboration ensures that you receive solutions that combine both precision and reliability, tailored to address their unique challenges.

Engineered Solutions

  • Shutdown valves (SDV)
  • Emergency shutdown valves (ESDV)
  • Blow down valves (BDV)
  • Turbine bypass valves
  • HIPPS systems
  • Subsea valves

Actuation Services

  • Valve and actuator integration
  • Actuator compatibility assessment
  • Valve torque measurement
  • Mounting adaptor design and manufacture
  • Control panel design and manufacture

Technical Support

  • Full engineered support
  • OEM-trained engineers
  • Criticality assessment
  • Failure analysis
  • Project management

Valve Testing

  • Pressure testing
  • NDE
  • PMI
  • Fugitive emission testing
  • Cryogenic testing

Workshop Repair and Testing

  • OEM-trained technicians
  • Strip down and inspection
  • Recommendation for repair/upgrade
  • Pressure testing
  • Machining, welding and modifications

On-site Services

  • Site surveys
  • Routine maintenance
  • Commissioning
  • Leak testing
  • Control valve diagnostics
  • On-site testing containers

Project Supply

  • Project management
  • Storage and warehousing
  • Shut-downs
  • Turn-key projects
  • Consolidation of valves packages

Supplier Management

  • Triple Impact Supplier Management Program
  • Approved manufacturers list (AML)
  • Audited supply chain
  • QA/QC checkpoints
  • ISO 2859

Valve Auditing and Testing

  • PSV testing
  • Control valve diagnostics
  • PMI testing
  • Failure analysis
  • Valve recertification
  • Hydrostatic and leakage testing to 10,000 psi and to multiple testing standards to: API 6D, API 598, API527, ISO5028, FCI70-2 as a sample

Multi Package Projects

At MacLean Valves, our proficiency extends beyond single-product offerings. We have the capacity to deliver multi-package projects that encompass a variety of product commodities. By streamlining processes like purchasing, documentation, expediting, invoicing and delivery, we significantly reduce the administrative burdens on you. This efficiency ensures that you can redirect your valuable resources and attention towards pivotal aspects of your business, fostering growth and enhancing operational efficiency. Trust in our expertise to simplify complex supply chain needs, providing tailored solutions that align seamlessly with your business objectives.

Asset Management - Maximising return on investment for your valve assets

By utilising our OEM-trained service personnel, we also provide asset management solutions to our end-user customers when plants are up and running. Our valve management software (VMS) manages the site’s installed base of valves and actuators though the life of the plant, optimising inventory.

We help customers manage their valve assets across total life cycle