Dongsuh Industrial Co., Ltd. has officially registered a new patent for its advanced Hydraulic Sealing Device for Pumps, expanding our R&D capabilities and technology portfolio.
This patented technology installs a sealing box to block fluid backflow within the pump casing stuffing box. By utilizing a pair of reverse threads on the drive shaft, the rotation and stop action of the reverse threads allow for non-contact sealing. Building on this technology, Dongsuh Industrial looks forward to delivering enhanced, higher-performance sealing solutions to our clients.

Patent Details
- Title of the Invention: Hydraulic Sealing Device for Pumps (펌프용 유압 실링장치)
- Patent Number: No. 10-1947030
- Filing Number: No. 10-2018-0121237
- Filing Date: October 11, 2018
- Registration Date: February 01, 2019
- Patentee: Dongsuh Industrial Co., Ltd.
