Established in 1912, Fulflo was incorporated in 1933 under its present name and trademark. Patents for the original guided piston, direct-acting relief valve were obtained in 1935, coincident with the onset of fluid power systems. The need for providing large flows without excessive bulk was subsequently met by the pilot-valve-controlled relief valve, a patent on which was issued to Fulflo in 1943 (U.S. Patent No. 2,333,522). Fulflo is located in Blanchester, Ohio just 30 miles northeast of Cincinnati, close to some of the state's largest manufacturing centers. Blanchester is served by air from Greater Cincinnati Airport and alternately from Dayton
FULFLO于1912年成立，世界 安全閥制造閥,1935年獲美國專利。 Fulflo位于布蘭切斯特，距離俄亥俄州辛辛那提東北部只有30英里，靠近該州 制造中心部分。
FULFLO安全閥V系列 VJ, VB, VS, VSS, VJ-SP VJF, VBF, VSF, VSSF, VJF-SP HVJ, HVB, HVS, HVSS HVJ-P, HVB-P, HVS-P, HVSS-P HVJF, HVBF, HVSF, HVSSF HVJF-P, HVBF-P, HVSF-P, HVSSF-P .
FULFLO安全閥FV系列 FVJ, FVB, FVS, FVSS FVJF, FVBF, FVSF, FVSSF . .
FULFLO安全閥 A系列AAD, ACD AADF, ACDF . . . .