الوصف

FREE-VALVEs Manual Operated Ceramic lined Knife Gate Valves are known as slurry gate valves. Its have simple structure and can cut off medium which contains solid particles and fibers, suitable for some very hard particles or serious erosive mediums.They are installed to replace general metal seated knife gate valves which will be washed out easily,
Features:
1) Short length of structure,saving material ,lightweight ,easy to install，small space occupation.
2) Seat is designed with single seat type to prevent sticking and accumulation of ash residue.
3) The sealing surface is made of structure ceramic with abrasion resistance and long service life.
4)Pneumatic operated can save the manpower cost .
Technical Specification
1) Size Range: NPS2~NPS*4,DN*0~DN**0
2) Pressure Range: Class **0 /PN6 /PN*0
3) Applicable Temperature.: 0~**0℃
4) Connection Type: Flange , wafer
5) Sealing material: engineering ceramics
6) Body Material: WCB, CF8, CF8M, CF3M
7) Pressure test:GB/T****7, API**8
8) Face to Face: GB/T****1, ASME B*6.*0
9) Valve body : GB/T****4,ASME B*6.*4
*0)Operating Mode:Manual operated 
Application
FREE-VALVEs Manual Operated Ceramic lined Knife Gate Valves are suitable for the conveying system with liquid-solid or gas -solid two-phrase medium , such as coal -water slurry ,ash, mine residue and coal residue in coal washing plant ,iron & steel plant or ash conveying system of power plant , paper pulp in paper industry, sewage and slurry in decontamination plant ,especially useful for the heavy medium system of coal mill.