Ballast Pump · Pumps
Heavy-duty horizontal centrifugal pumps are a critical component in maritime and industrial applications, particularly for handling large volumes of seawater or ballast. The IRON PUMP CNLB Serie is designed to meet these demands with robust construction and reliable performance. With a capacity range of 500 to 5000 cubic meters per hour and a head range of 15 to 100 meters, the CNLB Serie offers versatility across various applications. The pump is available in DN sizes from 150 to 500 millimeters, making it suitable for a wide array of installations. Since its introduction in 1990, the series has been continually refined, with approximately 110 variants to cater to different operational needs. Built with a bronze casing and impeller, the CNLB Serie is engineered to withstand the corrosive nature of seawater, ensuring long-term durability. However, common issues such as mechanical seal failure, bearing wear, casing erosion, and coupling alignment problems can arise after extended use. To address these concerns, IRON PUMP DK offers long-term parts availability, ensuring maintenance and repair needs are met for equipment installed as far back as 1990. Service intervals for bronze components in the CNLB Serie are typically 30% longer than those for cast iron, with seals recommended for replacement after 10,000 hours of operation and bearings after 25,000 hours. This extended service life contributes to the overall efficiency and reliability of the pump.
Do you have the manufacturer datasheet for this model? Send it with the enquiry form — we check it and name the source.
What our service work and the manufacturer documentation say about keeping this model running.
Bronze service intervals — typically 30% longer than cast iron. Seal 10000h, bearings 25000h.
IRON PUMP DK long-term parts availability for installed base back to 1990.
Free of charge — send us your request for Iron Pump equipment. Our team checks it and replies by e-mail.
Other models of the same equipment type, Iron Pump first.
Tell us what you need for this Iron Pump CNLB Serie — a part, a service call, a second opinion. Are you Iron Pump? Claim this brand page.
Service engineer? Write the day report for this CNLB Serie in OceanSphere Work — photos, hours and parts, as a PDF for the owner. Try it free for 14 days →
Yes. Specifications, documents and service notes for this model are readable without an account. An account adds saved searches and requests, nothing is taken away.
Yes. Tell us the manufacturer, the model and what you need — a person reads every request and replies by e-mail.
Send us the nameplate or the correct value. We check it against the manufacturer datasheet or class-society record and update the page.