Stal-Laval, Inc., Elmsford, N.Y., in conjunction with Stal Refrigeration of Norrkoping, Sweden, recently announced a contract signing with Flota Mercante Grancolombiana, S.A., to supply refrigerated cargo equipment aboard four 13,500-dwt multipurpose, semi-container ships scheduled for construction in Gdansk, Poland.

Designed by U.S. consultants J.J. Henry Co., Inc., each ship will have a carrying capacity of 500 twenty-foot containers, along with 167,000 cubic feet of refrigerated cargo space. Stal Refrigeration is supplying a system which includes screw compressors (SVK-51) operating on R22 as the primary refrigerant, with brine as the secondary agent. The plant is designed for cooling of six insulated cargo holds, having a net volume of approximately 4,890 cubic meters.