Preox Fabric
It is seals for manholes and handhole between not machined surfaces of pressure vessels, steam boilers, furnaces, burners, sealed doors and hatches. The Preox gaskets are made from pre-oxidized cellulose fiber fabric with aramid, reinforced with brass wires and synthetic rubber coated on both sides. Its function is to seal doors, hatches or plates with pressurized fluids. The garment is handmade and is made by folding the tissue, layer upon layer, to form closed joints in different ways section. Generally they made oval or round, but being a handmade product can be manufactured frame, square or rectangular type with holes for mounting on flanges or plates.