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Control systems Control valves
Trim option materials DN15 to DN300 (Diameter ½" to 12") Spira-trol TM
Seat options
Trim component
Trim type
T
S
G
W
P
C
Seat Material
PTFE
PEEK
St.St. 316L + Stellite 6
Plug Material
St.St. 431S29
St.St. 316L
Standard parabolic
St.St. 431S29*
St.St. 431S29*
Stem Material
St.St. 316L
Cage Material
St.St. 316L (CD 4 MCuN for unbalanced version only)
Seat Material
PTFE
PEEK
St.St. 316L + Stellite 6
St.St. 431S29
1-Stage Low Noise (P1)
Plug Material
St.St. 316L
St.St. 431S29*
St.St. 431S29*
Stem Material
St.St. 316L
St.St. 316L
St.St. 316L
St.St. 316L
Cage Material
St.St. 316L
Seat Material
316L + Stellite 6
PEEK
2-Stage Low Noise (P2)
Plug Material
St.St. 316L + Stellite 6
Stem Material
St.St. 316L
Cage Material
4.1 100
Seat Material
St.St. 316L + Stellite 6
3-Stage Low Noise (P3)
Plug Material Stem Material
St.St.316L
Cage Material
Seat Material
St.St. 316L + Stellite 6
1-Stage Anti-Cavitation (A1)
Plug Material Stem Material
St.St. 316L
Cage Material
Seat Material
St.St. 316L + Stellite 6
2-Stage Anti-Cavitation (A2)
Plug Material Stem Material
St.St. 316L
Cage Material
*316L for Stainless Steel valves
Seat options
Trim component
Trim type
T
S
G
W
P
C
Gasket Material
Reinforced exfoliated graphite
All Balanced or Multi-Stage Variants
Balance Seal Material
Graphite
TI-S24-59 CTLS Issue 7
Page 2 of 14
Balanced and Multi-stage Trim Options for Spira-trol TM Two-port Control Valves
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