44
Control systems Self-acting controls
Materials No. Part
Material
SG iron
DIN 1693 GGG 40.3
1
Body
Steel *
DIN 17245 GSC 25
SG iron
DIN 1693 GGG 40.3
Upper diaphragm chamber Lower diaphragm chamber
4
2
Steel *
DIN 17245 GSC 25
SG iron
DIN 1693 GGG 40.3
19 9
3
Steel *
DIN 17245 GSC 25
8
4
Body cap SG iron
31
Hot brass stamping
BS EN 12165 CW617N
7 6
Diaphragm plate
5
Stainless steel *
BS 970 431 S29
1
6
Push rod
Stainless steel
BS 970 431 S29
19
7
Valve seat
Stainless steel
BS 970 431 S29
2 23, 24
8
Valve head Stainless steel
BS 970 431 S29
4.5 92
Stainless steel
BS 2056 302 S25
Return spring
9
Stainless steel * BS 2056 302 S16
10 Lock-nut
Steel
BS 3692 Gr. 8
Phosphor bronze
BS 2870 PB 102 1980
Diaphragms (2)
21, 22 3
5
10
11
11
Stainless steel * BS 1449 316 S31
Stainless steel reinforced exfoliated graphite
19 Gaskets (2)
Steel
BS 3692 Gr. 8.8
Diaphragm chamber bolts Diaphragm chamber nuts
30
21
Steel *
BS 4882 Gr. 2H
Steel
BS 3692 Gr. 8
22
23, 24
Steel *
BS 3692 Gr. 2H
Steel
BS 4439 Gr. 8.8
23 Body bolts
Steel *
BS 4439 Gr. B7
Steel
BS 3692 Gr. 8
24 Body nuts
Steel *
BS 3692 Gr. 2H
Solenoid valve
30
Brass
1.4305
Internal strainer
31
Stainless steel
BS 1449 304 S16
Items marked * apply to the DN80 valve size only.
TI-P073-11 CTLS Issue 3
Page 2 of 3
HL17 High Limit Cut-out
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