Shutoff valve with chambered bellows and back-up gland packing

DN 50 PN 40 configured to 50.000 operations at rated pressure and room temperature With manual override design: normally-seated Type approval granted by VdTÜV Merkbaltt 1065 materials: Housing -----1.4404 Cap ----- 1.4408 ----- Bellows 1.4571 Cone --- 1.4571 with stelliting sealing surface lower spindle from ---- 1.4571 gland packing from ----- PTFE silk Cover Seals ------ Stainless-comb profile graphitized Stud bolts and nuts ---- A4-70 ____________________________________________________________ connections: Flanges with sealing strip Form B1 or Nut shape D according to DIN EN 1092-1 ____________________________________________________________ construction length: according to DIN EN 558, series 1 FTF _____________________________________________________________ Manufacture and supply of valves is carried out according to PED 97/23. For the quality certificate of the materials used for valve shells parts and nuts and bolts is an inspection certificate 3.1 to DIN EN 10204 applied. The final acceptance of the valves in accordance with DIN EN 12266-1 (P10, P11, P12) will be done by experts of the manufacturer _______________________________________________________________ Technical delivery conditions: Pressure Equipment Directive 97/23 EC _________________________________________________________________ Valves as items of equipment without safety function: starting from DN 32 Media ------ gases Fluid Group ----- fluids in Group 1 Category -------- I-III Conformity Assessment ------- Module H Labelling: -------- AD data sheet A4 and CE 0525