CDI Energy Products (CDI), a global developer of high-performance polymer components, has received API 610 recognition for its polymer composite, dures 200. API 610 is the standard for centrifugal pumps for petroleum, petrochemical, and natural gas industries. API, an acronym for the American Petroleum Institute, is an organization that develops technical standards for oil and natural gas industries. API 610 is the centrifugal pump standard put forward by API.
Headquartered in Humble, Texas, with locations serving North America, Europe, the Middle East, and Asia-Pacific, CDI Energy Products is a Michelin Group Company providing engineered materials for the oil and gas, liquefied natural gas, cryogenics, wind and renewable energy, water management, fluid handling, automotive, aerospace and defense, medical and biomedical, refining and petrochemical, industrial processing, power generation, and semiconductor markets.
CDI’s dures 200 was the foundation for critical components developed for an API 610 vertical single casing diffuser pump (VS1) for a high-production sulfuric acid plant. CDI collaborated with the pump manufacturer to custom-design suction bell eye case rings, bowl eye case rings, and bowl bushings that could sustain differential pressures of over 200 psi (13.7 bar), coupled with an extreme temperature profile of -20°F to 105°F (-28.8°C to 40.55°C).
“In the past decade, thermoplastic-based materials development in the energy and chemical process sectors has been dominated by the push for operation at higher temperatures and higher pressures,” said Dr. Tim Bremner, materials technology director at CDI. “The added challenge of achieving customers’ performance targets in very high or very low pH fluid handling, as encountered in sulfuric acid production or caustic amine gas treaters, introduces another challenge to material design due to the limitations these corrosive environments place on our choice of fillers and reinforcements. We are more than enthusiastic about the performance of dures 200 in pump applications where the combined temperature, pressure, and corrosive fluids would cause premature failure in lower-performing materials.”
According to CDI, dures 200 is delivering similar results for custom-designed components in single-stage overhung pumps and horizontally split multistage pumps with lean amines under pressures of over 200 psi.
In the dures family of materials, A451 and XPC2 are also recognized by API and meet the requirements of API 610 for stationary wear or rotating parts applications.
“API pumps are manufactured to meet certain industrial requirements including specifications that directly affect performance and safety. Designing components for those extreme duty pumps requires extensive technical knowledge of both the equipment and the environments for end use,” said Gary Gibson, P.E., CDI’s senior sales engineer for API 610 pump components. “When the API 610 Twelfth Edition was released earlier this year, we were thrilled to learn that dures 200 was now recognized in the non-metallic wear part materials selection.”