During April 6th and 8th,5pcs ball valves API6D that manufactured by DERVOS are fire tested in the laboratory of Quality Inspection Center of Pump and Valve Products of Zhejiang Province. The whole test process is witnessed by TUV inspector according to requirements of API SPEC 607 6th Edition, September 2010.And the testing results of valves meet the requirements of API SPEC 607.
Certificate No.: QT-SHI04012/16-01
Test Report No.: FM201604002

With the certificate, DERVOS can manufacture qualified ball valves with fire safe construction  conform to API607.The qualified range of ball valves are:
Pressure Ratings(Class):150,300 and Qualified Sizes:2”,2.1/2”3”,4”,6”,8”and larger.
Pressure Ratings(Class):400,600 and Qualified Sizes: 2”,2.1/2”,3”,4”,6”,8”.