1. Double seal valve Mainly applied to the fields such as petrochemical、natural gas、foods and water supply industries
2. Working Temp.: -29～200℃
3. Diameter range: DN

1. Type code :SF Double seal valve
2. Drive manner: No mark-manual; C-gear driven; D-motor driven
3. Pressure:1.6-1.6Mpa; 2.5-2.5Mpa 4.0-4.0Mpa; 6.3-6.3Mpa
4. Diameter:50-600mm
5. Channel mode: NO mark- noncircular reduced bore; Y-circular reduced bore Q-full diameter
Material for Body: No mark-carbon steel; I-(1Cr5Mo.ZG1Cr5Mo); P—1Cr18Ni9Ti、ZG1Cr18Ni9Ti V—12CrMoV、ZG12CrMoV R—1Cr18Ni12Mo2Ti、ZG1Cr18Ni12Mo2Ti；
6. connecting mode: No mark-flange connecting
7. seal material: F-viton
8. model shown:SFD2.5-350QPF refers to electromotion double seal valve, pressure is 2.5Mpa,diameter 350mm,full diameter port mode,material for body is ZG1Cr18Ni9Ti,flange connecting, and the main seal is viton

Relief device