Superior Tightness in Difficult Applications Resulted a Major Order for Metso Valves from Yantai Wanhua Polyurethanes Limited in China
Metso has been awarded a high-value contract for pneumatic ball valves and butterfly valves by Yantai Wanhua Polyurethanes Limited. The valves will be used in the MDI integration project (diphenymethane disocyanate) at their existing factory site and a new PO/AE integration project under construction in China (epoxy propane and acrylic ester). This is the first partnership between Metso and Yantai Wanhua, which has invested approximately RMB 30 billion (USD 5 billion) in these two projects.
“Metso’s valve solutions were chosen because they meet the strictest standards regarding leakage class and low fugitive emission,” says Steven Wang, Account Manager, Automation, Metso.
The PO/AE integration project includes plants for propane dehydrogenation, acrylate, and acrylic acid resin, propylene oxide, and polyhydric alcohols, as well as a LPG storage cavern. Metso will supply ball valves including its X series, D series stemball valves, 9000 series flanged valves, S6 series metal seated high pressure valves, and the R-series V-port segment control valves. Materials of construction range from WCB and CF8M grade to Hastelloy, 316L and Monel per the customer’s specification.
The key components of the MDI project, which includes plants for producing isocyanate, oxidized hydrogen chloride, and nitrobenzene, require valves that deliver a superior tightness in difficult applications over long time and which promise control of fugitive emissions. Metso’s deliveries include 700, L6 Neldisc® triple eccentric butterfly valves that are engineered to accommodate the projects unique requirements.
The Neldisc® L6 series is a triple eccentric butterfly valve with a metal seat. The trim consists of a high-precision elliptical disc and a chrome plated (Incoloy 825) seat, which is attached to the casing with a stainless steel clamp ring, making it easy to assemble and dismantle for maintenance. Such metal seats are more resistant to abrasion and more tolerant of liquids at a high pressure and temperature, all of which ensures a longer operational life. When the valve is open, the disc and seat are separated, which significantly reduces abrasion between the sealing components, reduces operational delays and wear on sealing surfaces, and also lowers valve torque. When the valve is closed, the sealing is achieved through the elasticity of the valve seat; assistance from pressure generated by flowing liquid is not required, meaning that a firm sealing can be achieved even where the pressure differential is low.
Metso is the leading valve solutions and services provider, and the market leader of valves for the pulp and paper industries. Its solutions include control valves, automated on-off and emergency shutdown valves, as well as smart positioners and condition monitoring. Metso’s world-leading brands include Neles®, Jamesbury® and Mapag®.
Yantai Wanhua Polyurethanes Limited (Yantai Wanhua) was established in 1988 and, post-restructuring, became the first publicly listed joint-stock company in Shangdong province. The primary business of the company is the research and development, production and sales of MDI isocyanate products, aromatic polyamines, and TPE, TPU and TPV products. Yantai Wanhua is the largest MDI manufacturer in the Asia-pacific region. Currently, the company owns three MDI plants that produce 1 million tons per year. Product quality and company resource consumption both reach the highest international standards. In 2011, the company achieved revenues of RMB 13.66 billion (2.28 Billion USD) and a net profit of RMB 1.85 billion (308 Million USD).
The Automation segment’s process automation and flow control solutions meet the growing needs of Metso’s customer industries to improve production process efficiency as raw materials and energy sources become scarcer and their costs increase. Our global network of service experts delivers business solutions to our customers that improve their productivity, lower risks and optimize costs.
www.metso.com/automation, www.twitter.com/metsoautomation
Metso is a global supplier of technology and services to customers in the process industries, including mining, construction, pulp and paper, power, and oil and gas. Our 30,000 professionals based in over 50 countries deliver sustainability and profitability to customers worldwide. Expect results.
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For further information, please contact:
Leo Li, Business development Manager
leo.li@metso.com
Tel: +86 21 38991009
