Technical Specifications

21000 Series Control Valves Technical Specifications | 25
ASTM A216 GRADE WCC or ASTM A105
ASTM A106 GRADE B HRC 22 MAXIMUM
ASTM A216 GRADE WCC
SOLUTION ANNEALED 316 STAINLESS STEEL
ASTM A479
316 ST. ST. ASTM A240/A312
GENERAL SERVICE ANNEALED 316L ST ST
ASTM B574
Stellite or Equivalent NO. 6
Hastelloy C276 ASTM B575/B622
ASTM B574
ASTM B164 CLASS A
Stellite or Equivalent NO. 6
ASTM B164 CLASS A
ASTM B164 CLASS A
INCONEL X-750
Stellite or Equivalent NO. 6
ASTM B446
ASTM B446
ASTM A234 GRADE WPB
25 Valve Bonnet ASTM A216 GRADE WCC or ASTM A105
26 Bonnet Stud ASTM A193 GRADE B7
27 Bonnet Stud Nut ASTM A194 GRADE 2H
28 Bonnet Spacer Gasket 316L ST ST SPIRAL WOUND GASKET WITH GRAPHITE FILLER
Ref.No.
Bellows Seal - Carbon Steel Body Version
(1)
Ref.
No.
1) Materials for other components are same as listed for Standard Carbon Steel Construction. 2) Items
No. 1 (plug stem) and 8 (bonnet) in Standard Materials of Construction tables are replaced by items above. 3) Optional Hastelloy
C, Monel 400 and Inconel 625 Bellows Construction available.
Carbon Steel
Bonnet
Extension
Assembly
29
Upper Flange
Spacer
Lower Flange
Stainless Steel
Bellows
and Stem
Assembly
Stem
Guide Bushing
Bellows
Upper Adapter
Lower Adapter
Hastelloy
C
(3)
Bellows and
Stem Assembly
Stem
Guide Bushing
Bellows
Upper Adapter
Lower
Monel 400
(3)
Bel-
lows and Stem
Assembly
Stem
Guide Bushing
Bellows
Upper Adapter
Lower
Inconel 625
(3)
Bellows and
Stem
Assembly
Stem
Guide Bushing
Bellows
Upper Adapter
Lower
30
31 Plug – 1/8" NPT
Temperature Range -20°F (-29°C) 800°F (427°C)
Description Materials
DD
Temperature Range -20°F (-29°C) 800°F (427°C)
D D
Materials of Construction