Control systems Self-acting controls
4
Materials
SB
SBRA
9 8
6 5 7
3
8
4
2 1
Optional extra bleed hole
2
8
4 3
5 7
1
8 7
4.5 59
6
No.
Part
Material
1 2 3 4 5 6 7 8
Body
Gunmetal
BS 1400 LG2
Valve plug
Stainless steel
BS 970 431 S29
Valve seat ring
Stainless steel
BS 970 431 S29
Valve seat gasket
Copper
BS 2870 C102
Return spring
Stainless steel
BS 2056 302 S26
Stem
Brass
BS 2874 CZ 121
Bonnet
Brass
BS 2872 CZ 122
Bonnet gasket
Reinforced exfoliated graphite
9
Cap
Brass
BS 2872 CZ 122
TI-P044-01 CTLS Issue 11
Page 3 of 5
SB and SBRA Gunmetal Self-acting Temperature Control Valves
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