AMPO POYAM VALVES, a worldwide leader in highly engineered valves for the most severe services, and CLARKE VALVE, developer and intellectual property owner of the Dilating Disk Valve, industry-leading control valve technology for reducing fugitive industrial methane emissions, announced today an exclusive world-wide licensing agreement.

The Clarke Valve-AMPO exclusive license covers manufacturing, distribution and service, expanding the global market for zero-emissions Dilating Disk Valves to projects of any size, anywhere in the world, for the energy, chemical, power and other major industries. The agreement was signed and closed on October 1st, 2023, in Idiazabal, Spain, AMPO’s headquarters.

Importantly, the agreement provides confidence to customers in an increasingly stringent regulatory environment to support the maximum amount of methane applications across industry; the Dilating Disk Valve is certified to PED/CE for use in the European market, CRN for use in the Canadian market, ISO-15848 with an “A” rating for fugitive emissions, SIL-3 for the highest safety rating, and NACE for corrosive applications.

The Dilating Disk Valve, a plug-and-play alternative to traditional globe control valves, has been field-proven with stellar results over the last several years, through allocation of substantial financial and technical resources in partnership with Clarke Valve investors, Saudi Aramco Energy Ventures, Chevron Technology Ventures, and Climate Investment, a specialist decarbonization investor founded by a number of the world’s leading energy companies.

The Dilating Disk Valve is recognized on several Approved Manufacturer’s Lists (AML), operating successfully on five continents in a wide range of applications, while meeting the highest engineering standards for performance, emissions, and quality.  The result of these efforts has provided a control valve with demonstrably superior performance and extraordinary reliability in comparison with other control valve products.

“Customers in the energy sector and other industries are looking for solutions that not only reduce emissions, but reduce planned maintenance costs, increase performance, and increase top-line revenue.  The Dilating Disk Valve has proven this time and time again with the biggest names in the aerospace, oil and gas, and chemical industries,” stated Kyle Daniels, CEO of Clarke Valve.  “The increase in customer demand that we are seeing requires an increase in scale, and AMPO POYAM VALVES is the perfect partner to scale with.”

“This agreement is an important milestone for AMPO, supporting our continued growth plans. The field-proven zero-emissions Dilating Disk Valve will greatly expand our already wide solutions portfolio and will help us positioning AMPO POYAM VALVES in the control valve industry” said Ibon Imaz, Managing Director at AMPO. “This collaboration is another example of AMPO’s leadership in innovation and is part of our strategy to continue providing low carbon energy solutions and zero-emission solutions to our customers worldwide. We are excited to work closely with Clarke Valve driving energy transition for a more sustainable future”.

“This partnership puts together two market leaders with the product and infrastructure to drive substantial market scale and emissions impact,” commented Roger Humphreville, Vice President Stakeholder Management at Climate Investment and Clarke Valve Board member. “We are tremendously excited for the opportunity the agreement presents and look forward to continuing our proactive engagement to support future growth.”

Kirk Shryoc, Chairman of the Board of Clarke Valve, noted “The Dilating Disk Valve is superior control valve technology.  By partnering with AMPO’s world-class supply-chain, vertically integrated manufacturing, distribution, and service capabilities, customers can select the Dilating Disk Valve with a high level of confidence. This transaction is the result of years of work to find the best partner possible to join us in our commercialization efforts.  Clarke Valve and AMPO share a common vision, commitment, and long-term partnership mentality, and we are thrilled to work with AMPO for years to come.”

The Clarke Valve-AMPO partnership will deliver Dilating Disk Valve technology with AMPO highest manufacturing and quality standards to support Clarke Valve and AMPO POYAM VALVES’ customers achieving goals of increasing production, while eliminating leakage from control valves, one of the leading causes of fugitive emissions on the production side of the industries which the world’s economy depends on.


About Clarke Valve

Clarke Valve is the exclusive developer and intellectual property owner of the Dilating Disk™ Valve; an advanced technology quarter-turn valve characterized by its three interlocking petals that control the flow of process fluid. Dilating Disk™ Valves are API 641 and ISO 15848-1 certified to reduce fugitive emissions by 98%. In addition to conforming to a wide-ranging list of industry standards, the Dilating Disk™ Valve is Safety Integrity Level (SIL) 3 certified.  With a customer base consisting of over 35 of the leading oil and gas companies in the world, Clarke Valve provides reliable, plug-and-play control valves that allow their customers and partners to meet environmental standards within a compact and low-weight design.



Established in 1964, AMPO POYAM VALVES is an international leader in the design and production of highly engineered valves and Integrated Smart Solutions for the most severe services and industries, covering applications in the energy, petrochemicals, chemical, mining and power sectors. With millions of valves installed in safe and reliable operation in the complete and global energy chain, AMPO POYAM VALVES develops custom fluid handling solutions, working hand in hand with leading EPCs and end users, in order to offer optimum valve solutions and meet the most demanding requirements.

The driving force behind our company is the highly skilled people who are part of it and completely oriented to innovation and commitment.


About Climate Investment

Climate Investment is an independently managed specialist investor focused on accelerating capital-efficient decarbonization of heavy emitting sectors. Operational since 2017, its team of investment and technical experts has built a portfolio of 36 outstanding technology and business model innovations. Collectively, its portfolio delivered 57 MT CO2e of cumulative greenhouse gas reduction in the period 2019-2022.  

Climate Investment was founded by member companies of the Oil & Gas Climate Initiative (“OGCI”). They have invested in Climate Investment funds and deployed many of its portfolio innovations, supporting their early commercial development.  Visit