Control systems Safety valves
4
Materials
4
Gas tight cap option
9
10
7
5 8
4.7 31
Soft seal disc version
6
3
2 1
1" Sanitary clamp inlet
Screwed female inlet
No.
Part
Material
1
Body
Bronze
BS EN 1982 CC491KM
DN15 and DN20
Stainless steel
BS 970 431 S29
2
Nozzle
DN25 to DN50
Stainless steel
BS 3146 Pt2 Gr. ANC2
Sanitary connections
Stainless steel
ASTM A276 316L
3 4 5 6 7 8 9
Disc
Stainless steel
ASTM A276 316L
Lever housing
Bronze
BS EN 1982 CC491KM
Spring
Chrome-vanadium alloy steel
BS 2803 735 A50 HS
Stem guide
Brass
BS 2872 CZ 121
Spring end plate
Brass
BS EN 12165 - CW617N
Stem
Stainless steel
BS 970 431 S29
Adjustment screw
Brass
BS 2874 CZ 121
10
Lever
SG iron
Zinc plated
Materials continued on the next page
TI-P316-01 CTLS Issue 20
Page 3 of 10
SV615 Safety Valve
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