... Size from DN50-1800mm High quality and competitive price Manual Knife gate valve, wafer type knife gate valve ... 6 MP , 150Lb, 125LB2). Size: 50-1800mm, NPS: 2''TO 72'' inch3). Body, Bonnet, material: Carbon Steel (WCB ... Ashes, etc/Our products are widely used in paper making factory, Coal Washing plants, Sewage treatment plants, slag ... temperature (°C)Appropriate media1.0 1.61.5 2.41.1 1.8Rubber≤100°C Y/H≤ ...