A full-service distributor of centrifuges, fluid separators, plate heat exchangers and watermakers for the Marine, Food & Beverage, and Industrial Fluids Industries. Reconditioned Equipment We pride ourselves on our reconditioning process. Each machine reconditioned at SECO goes through our 17 step reconditioning process. At SECO we don't just sell what we have in stock, we create solutions for your individual problems. SECO is the largest stocking distributor of genuine Alfa Laval spare parts in the US, with both preventative maintenance and repair services to keep your centrifuges running the way they should.