■  Body Construction
 
■  View "A" [Seal Ring]
 
 
 
■  Part Description and Materials
Part No. Description Material
1 Body ASTM A216 Gr-WCB / A351 Gr-CF8 / A351 A351 Gr-CF8M
2 Cover ASTM A216 Gr-WCB / A351 Gr-CF8 / A351 A351 Gr-CF8M
3 Segment Ball A351 Gr-CF8 / A351 Gr-CF8M / TUNGSTEN
4 Top Stem 316 / 304 Stainless Steel
5 Upper Bushing Alloy Steel, Bronze, Graphite
6 Packing Spacer 316 / 304 Stainless Steel
7 Packing Teflon + Graphite
8 Packing Follower 316 / 304 Stainless Steel
9 Packing Flange Stud 316 / 304 Stainless Steel
10 Packing Flange 316 / 304 Stainless Steel
11 Packing Flange Nut 316 / 304 Stainless Steel
12 Cover Stud A193 B7
13 Cover Nut A194 2H
21 Seat Housing 316 / 304 Stainless Steel
22 Seat Ring PTFE/Graphite(RTFE)/Peek/Metal/Moving PTFE/
Moving RTFE/Moving Peek/Moving Metal
23 Spring Stainless Steel
24 Cover O-Ring NBR
25 Gasket Graphite
31 Bottom Cover 316 / 304 Stainless Steel
32 Bottom Stem 316 / 304 Stainless Steel
33 Bottom Bushing Alloy Steel, Bronze, Graphite
34 Gasket Graphite
35 Bottom Flange Nut A194 2H / Stainless Steel
36 Bottom Flange Stud A193 B7 / Stainless Steel
 
 
 
 
■  Dimension
 
 
 
■  Dimension Table
(unit:mm)
Valve Size in (mm) L (ANSI Class) A H1
#150 #300 Model VSS Model VSD
1 (25) 127 165 284 197 185
1-1/2 (40) 165 190 343 255 192
2 (50) 178 216 343 255 200
2-1/2 (65) 190 241 416 291 217
3 (80) 203 283 416 291 234
4 (100) 229 305 505 384 265
5 (125) 356 381 700 520 367
6 (150) 394 403 700 520 488
8 (200) 457 502 700 520 550
 
Valve Size in (mm) L (ANSI Class) A H1
#150 #300 Model ITS Model ITD Model VSD
8 (200) 457 502 1473 752 1008 794
10(250) 533 568 1473 752 1008 844
12 (300) 610 648 1875 876 1212 919
14 (350) 686 762 2275 876 1212 990
16 (400) 762 838 2240 1130 1340 1025
18 (450) 864 914 2440 1130 1340 1170
20 (500) 914 991 3055 1240 1600 1270