... -DN900Pressure:PN10, PN16,150LB, JIS10KBody material: cast iron, ductile iron Disc material: 201,304,316,316LConnection: waferSeat:NBR, EPDMPacking: Graphite, PTFEBody ... medium: sewage water, powder, paper pulpActuator: hand wheel, bevel gear, pneumatic, electric, hydraulic, electro-hydraulic, chain wheel, lever Pneumatic Slurry Knife Gate Valve