Specifications:Design: AP1600, AP16D.Face to face: ASME B16.10.Flange ends: ASME B16.5.Test&inspection: AP1598, AP16D.Performance Specification:
Parts & Material1. Body: ASTM A216-WCB ASTM A351-CF8, CF8M, CF3, CF3M.2. Disc: ASTM A182-Gr.F6a, ASTM A182-F22 ASTM A182-F304, F316, F321, F304L, F316L.3. Split ring: ASTM A182-Gr.F6a, ASTM, A182-F22 ASTM, A182-F304, F316, F321, F304L, F316L.4. Disc bushing: ASTM A182-Gr.F6a, ASTM A182-F22 ASTM A182-F304, F316, F321, F304L, F316L.5. Stem: ASTM A182-Gr.F6a, ASTM A182-F22 ASTM A182-F304, F316, F321, F304L, F316L.6. Gasket: Flexible graphite+stainless steel, PIFE.7. Bonnet: ASTM A216-WCB ASTM A351-CF8, CF8M, CF3, CF3M.8. Bellows: ASTM A182-F304, F316, F321, F304L, F316L.9. Parking: Flexible Graphite, PTFE.10. Gland: ASTM A216-WCB ASTM A351-CF8, CF8M, CF3, CF3M.11. Yoke nut: ZQA19-4.12. Handwheel: ASTM A536 Gr.60-40-18, A216-WCB.13. Guiding piece: 45, WCB, 304, 316, 304L, 316L.14. Bolt: ASTM A193-B7, A193-B8, A193-B8M.15. Nut: ASTM A194-2H, A194-8, A194-8M.
Features1. This product has logical structure, reliable seal, excellent performance and nice design.2. The seal surface is build-up welding with Co hard alloy, which is attrition-resistant, corrosion-resistant, has good friction resistant and long life.3. The stem is quenched and tempered, and its surface is treated by nitrogen treatment, thus it is has good corrosion resistant and friction resistant.4. It has double seal capability, thus is more reliable.5. The stem may show the position of lift, thus it is clearer.6. The part material, flange and butt weld end dimension may be selected according to current operating conditions and users' requirement, so that meet the requirements of various engineering.