CRYOGENIC
Type 28651 - Topwork
for Cryogenic-Globe and Globe/Check Valves
"Fire safe" type test approval acc. to EN ISO 10497


Stainless steel topwork, "live loaded" gland packing "cleaned and degreased for oxygen service"


Part No. 28651.X.0000
Part No. 28651.X.5000 with check function



suitable for:

TypeNominal size
01651DN10 - DN100
01655DN10 - DN50
03651DN25 - DN150


 
Type 28651 - Topwork
 

Materials

DIN EN

ASTM

1 Valve seal PTFE / Carbon filled (25%)
2 Disc 1.4301 A 276 Grade 304
3 Bonnet gasket Graphite
4 Headpiece 1.4301 / 1.4308 A 276 Grade 304 / A 351 CF8
5 Bolts 1.4301/A2 A 194 B8
6 Stem 1.4301 A 276 Grade 304
7 Gland packing Graphite / PTFE / MICA
8 Gland nut 1.4305 A 276 Grade 303
9 Handwheel 1.4409 A 351 CF3M
10 Spring 1.4310 A 313 Grade 301
11 Bush CW452K B 159 UNS C51900
 
Type 28651 - Topwork
 

Type 28651Technical data
Nominal size DN101520253240506580100150
Dimension code.X.01000150020002500320040005000650080010001500
HeightH130130130130155160185240285320380
Nimber of bolts444444666612
Handwheel-ØB100100100100125125125200250315360
Weightca. kg0.60.70.951.01.51.92.74.85.98.418.0
Dimensions in mm.

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