Type 1.5GCJ pump is centrigugal pumps of single suction and multi-stage segmental type which can be used to transport clean water and liquids with physical and chemical nature similar to water.The liquid temperature is not higher than 110 ℃ .It is suitable for water feeding to boilers,and water supplying to factories and cities. Designation of 1.5GCJ — 5 × 6 1.5 —— Suction diameter(mm)divided by 25 , and then change the Value into integer G —— Boiler feed pump C —— Indicating type of te pump J —— Mechanical seals 5 —— Specific speed divided by 10 (i.e.the specific speed of the pump is 50) 6 —— Number of impellers