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Gate Valves

The global excellence in quality was verified by acquiring the international quality certification and the overseas major ship
classification certification. A foothold is being established as the global valve maker satisfying the customers with the
best quality through the steady R&D investment.

  1. 2013
    Received commendation from Daewoo Shipbuilding and Marine Engineering as a good partner company
  2. 2009
    Acquired the "NEP" certificate from the Ministry of Knowledge Economy
  3. 2008
    Acquired the cryogenic valve type approval from the China government
    Acquired the ASME "N" & "NPT" certifications
    Changed the company name to S&S Valve
  4. 2007
    Jointly developed the maximum 150 to 1500LB 36" high-control high-performance top entry ball valve with the Ministry of Knowledge Economy
    Registered as the supplier approved by Jiangsu Nuclear Power Corp. (JNPC)
  5. 2006
    Received the prize for the export of five million USD and the presidential citation

  1. 2005
    Acquired the valves manufacturing license for CTCI-IHI CPC Northern LNG terminal.
    Acquired the nuclear valve manufacturing license from a Taiwanese company
  2. 2004
    Approved as the raw material manufacturing company for DNV, LLOYD, and BV
    Acquired the quality certification on the cryogenic valve from Daewoo Shipbuilding and Marine Engineering
  3. 2002
    Supplied the liquefied fuel rocket (KSR-III) control valve to the Korea Aerospace Research Institute
    Acquired the control valve manufacturing license for a nuclear power plant from Korea Hydro and Nuclear Power (KHNP)
    Registered the control valve and the safety valve in Korea Gas Corporation (KOGAS)
    Acquired the certification from TÜV Rheinland CE (Conformittee‟ European)

  1. 2001
    Approved by LLOYD and BV
  2. 1999
    Acquired the KEPIC-MN (Nuclear Power Quality Guarantee System) certification from the Korea Electric Association (KEA)
    Acquired the API 6D certification
  3. 1997
    Acquired the control valve manufacturing license from Korea Electric Power (KEPCO)
  4. 1996
    Concluded the technology agreement with Copes-Vulcan, a U.S. company
  5. 1995
    Registered the trademark, "SAVE", as its own valve brand (Koran Intellectual Property Office)
  6. 1994
    Acquired the ISO9001 certification

  1. 1989
    Acquired the license relating to nuclear power from the Ministry of Science and Technology
  2. 1986
    Concluded the technology agreement with Kensei Valve, a Japanese company
  3. 1984
    Acquired Samkwang Metal Industrial and changed the company name to Seoheung Metal
  4. 1983
    Acquired the high pressure equipment manufacturing license from Korea Gas Safety (KGS)
    Acquired the high pressure valve manufacturing license from Korea Electric Power
  5. 1979
    Acquired the Korea Special Valve
  6. 1968
    Founded Seoheung Corporation