Bettis CBB/CBA300-Series
Pneumatic Valve Actuator
Component Material List
Material List
ML.CBx.01.01 Rev. 1
October 2018
Material List
ML.CBx.01.01 Rev. 1
Table of Contents
Section 1: Major Component Material List
1.1 Typical CBB-Series Major Component Material List ......................................... 4
1.2 Typical CBA300-Series Major Component Material List ................................... 6
Section 2: Seal Material List
2.1 Typical CBB/CBA300-Series Seal Material List .................................................. 8
Section 3: Typical Coatings
3.1 Nitriding ........................................................................................................ 9
3.2 Teon lined cylinder bores.............................................................................. 9
Table of Contents
October 2018
Table of Contents
3
Table of Contents
8) Center Bar
14) Yoke Pin
Yoke Pin Bearings
11) & 16)
October 2018
Material List
ML.CBx.01.01 Rev. 1
Section 1: Major Component Material List
1.1 Typical CBB-Series Major Component
Material List
FIgure 1 CBB-Series Major Components
12) Travel
Stop Screw
Nut
9) Cylinder
7) Center Bar
1) Ductile Iron Housing
Table 1. Material List
Item Description Material
1 Housing Cast Ductile Iron ASTM A395
2 Yoke, CBBx15 & CBBx20 Cast steel ASTM A732
3 Torque shaft Alloy steel ASTM A311
4 Yoke key Steel ASTM A108
5 Travel stop screw Alloy steel, Zinc plated ASTM A193
6 Yoke/Yoke pin bearing UHMWPE plastic
7 Centerbar Alloy steel, Nitrided ASTM A193
8 Centerbar nut Alloy steel, Zinc plated ASTM A194
17) Spring
End Cap
13) Piston
4) Yoke Pin
Housing
Yoke, CBBx25 Cast Ductile Iron ASTM A536
Travel stop screw nut Alloy steel, Zinc plated ASTM A194
10) Cylinder
Adapter
3) Torque Shaft
2) Yoke
5) Bi-directional
Travel Stops
6) & 15) Piston Heel and
4
Table of Contents
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