Customer Success Stories
Company Name Applicable Pump Issues Solution
S-machine Marine Vertical Centrifugal Pump – Water leak due to axial movement
– O-ring adhered by foreign substances		 R/B Sela applied (SR type developed and applied)
 Gear Pump for Hot Fuel Oil (HFO) – Oil leak due to excessive axial movement
– O-ring and spring adhered by foreign substances		 – Surface pressure increased
– Flexibility Increased by inserting O-ring into the shaft and face respectively (CSU type developed and applied)
Boiler Circulation Pump -Excessive heat on the seal face
– Insufficient cooling performance		 – Narrow Seal Face applied (MSU, MSB type developed)
– Cooler performance improved (PCL420 Cooler developed and applied)
Horizontal Double Suction Pump -Insufficient flexibility for the adopted seal to respond to changes in pump activity (vibration, axial movement, etc.)
– Unsuitable Drive Mechanism of adopted Stal
– Foreign substances between the shaft and O-ring		 – Multi Spring Rubber bellows Seal applied (MRH type developed and applied)
Horizontal Double Suction Pump
Hot Fuel Oil (HFO) Gear Pump – Oil leak due to excessive axial movement
– O-ring and spring adhered by foreign substances		 – Multi Spring Rubber bellows Seal applied (MRH type developed and applied)
Hyundai Heavy Industries Co., Ltd. Vertical Double Suction Pump
(Ballast Pumo)		 – Water leak due to axial movement
-O-ring adhered by foreign substances		 – R/B Sela applied (SR type developed and applied)
Hyosung Ebara Co., Ltd. Marine Pump newly produced by PJT Pumping Services Limited – Entering into the marine pump market – R/B Sela applied (SR type developed and applied)
Company T Spray Rotor for Tank Cleaning – Water leak
– Decreased rotor speed due to seal face friction
– Adhered Seal Face		 – Reduced seal weight
– Reduced friction coefficient of seal face (SU010T type seal developed and applied)
Company D Marine Compressor Cooling Water Pump – Decreased rotor speed due to seal face friction
-Insufficient seal surface pressure
– Vibration of the compressor		 – Rubber Bellows redesigned
– Spring Redesigned with increased spring constant k (S100R type seal developed and applied)
Shinwoo Heavy Industries Co., Ltd.
K Pump		 Submersible Pump – Poor seal assembly performance (three persons generally required to assemble one set) – A seal structure developed which can be assembled by one person (S200L type seal is developed and applied)
W펌프 Vertical Multistage Pump – Leaking coolant pump – HJ92N replaced with IS8
Vertical Multistage Pump – Injection machine heating pump (HJ92N replaced with SRH) – Under test
Vertical Multistage Pump – Salt Water Pump (MGI replaced with SRH) – Under test