Pressure range: CLASS150~1500;
Size range: DN40~DN600(1-1/2"~24");
Body Material: A216 WCB, A351 CF8, A217 WC6, A352 LCB;
Design Charateristics:
1. Stem nut uses aluminum bronze material. Large valve is provided with thrust bearing to make it opened easily and flexibly;
2. Two-piece design of packing gland to avoid stem clogging caused by squishing;
3. Packing uses flexible graphite for dependable sealing performance if requested by users, packing spacer ring and greasing mechanism can be available;
4. Upper seal design to ensure dependable packing and sealing when valve is fully opened(Replacement of packing under pressure is not recommended);
5. Lift stem, with a piece of hard stainless steel inlaid between stem head and disc to avoid deformation caused by extrusion, and corrosion leading to inflexibility of disc action.