Performance Specification Property {{and}} specifiecation 
 Product Type Product type nominal pressure PN (MPa) Nominal pressure test pressure (MPa) Test pressure working pressure (MPa) Working pressure, operating temperature (° C) Working temperature applies to media Appicable medium 
 Seal, test, strength test the Sheel test, seal test / seal experimental 
 Z960Y-250 25 37.5 27.5 - ≤ 425 Water, Steam, Water, of steam 
 Z960Y-320 32 48.0 36.0 - ≤ 425 
 Z960Y-P54100 - 30.0 22.0 P5410 ≤ 540 Steam Steam 
 Z960Y-P54170 - 48.0 36.0 P5417 ≤ 540 
 Major parts and materials Matecrial for main parts 
 Part name Part name Material Grade the Material designation is 
 Body the Body WCB WC6 WC9 
 Valve plate Disc WCB WC6 WC9 
 Bonnet Bonnet, 25 12Cr1Mo1VA 
 Stem Stem 1Cr17Ni2 20Cr1Mo1VA 
 Seat Seat, 25 12Cr1Mo1VA 
 Sealing ring Sealing ring S of mild steel (reinforced flexible graphite) S soft steel (flexible graphite) mild steel S S soft steel the F soft steel, the F Soft steel 
 Packing Packing reinforced flexible graphite Fexible graphite 
 Stent Yoke, WCB WCB or WC6 
 Stem nut Stem nut 45 (ZCuZn25A16Fe3Mn3) 
 Four open-loop Four piece ring 1Cr13 20Cr1MoVA 


 Main dimensions and weight of the Main dimensions {{and}} weight 


 Nominal Path DNNominal diameter main dimensions and connecting dimensions (mm) Main external {{and}} connecting dimensions of electric devices Electric dewice weight (kg) Weight 
 d LH the L1 L2, 
 Z960Y-250 
 100 84 406 1164 437 277 DZW45 234 
 125 100 483 1402 437 277 DZW60 343 
 175 158 711 1650 554 309 DZW180 638 
 225 200 864 1650 554 309 DZW180 654 
 300 280 1067 2106 764 398 DZW350 1973 
 Z960Y-320 
 100 96 533 1236 437 277 DZW60 291 
 125 118 610 1302 437 277 DZW60 315 
 150 148 762 1403 526 283 DZW90 672 
 175 148 762 1650 554 309 DZW180 684 
 225 222 1041 1650 554 309 DZW180 696 
 Z960Y-P54100V 
 175 148 762 1650 554 309 DZW180 683 
 225 222 1041 1650 554 309 DZW180 704 
 250 222 1041 1795 554 309 DZW180 1214 
 300 294 1245 2080 554 309 DZW250 2125 
 Z960Y-P54170V 
 125 98 630 1230 437 277 DZW60 312 
 225 186 1060 1680 554 309 DZW180 1401 
 300 278 1397 2265 of 764 DZW500 2834 
 325 310 1448 2265 690 398 DZW500 2632 
 350 338 1550 2536 715 DZWC-4 5591