Samson 3374-15 - Page 17

EB 8331-4 EN 17
Design and principle of operation
Table2: Version with fail-safe action
Type3374 -21 -26 -31 -36
Type of connection With yoke
1)
With ring nut
2)
With yoke
1)
With ring nut
2)
Fail-safe action Extends Retracts
Travel mm 15 15
Travel limitation Between 10 and 100% of the rated travel
Manual override
–
Electrical connection
Power supply 24V(±15%), 47 to 63 Hz and 24VDC(±15%)
85 to 264V, 47 to 63Hz
Power consumption Speedlevel:Normal·Fast
24V
AC 18 VA · 23 VA
DC 11.5 W ·15 W
85 to 264 V AC 19.8 to 26VA
Transittimeins·Strokingspeedinmm/s
Normal
3)
60 · 0.25 60 · 0.25 60 · 0.25 60 · 0.25
Fast
4)
30 · 0.5 30 · 0.5 30 · 0.5 30 · 0.5
Upon fail-safe action 12 · 1.25 12 · 1.25 12 · 1.25 12 · 1.25
Forces in kN
Thrust (stem extends) 2 2 2 2
Thrust (stem retracts) 0.5 0.5 0.5 0.5
Nominal thrust of safety
spring
2 2 0.5
0.5
Weight
kg (approx.) 4.2 4.3 3.8 3.9
1)
For attachment to SAMSON Series V2001 Valves (DN 15 to 80) and to SAMSON Type3260
(DN65 to 150) and Type3214 Valves (DN65 to 100)
2)
For attachment to SAMSON Series240 Valves and to SAMSON Type3214 Valve (DN125 to 250)
3)
Normal speed level (Code c64 = NORM)
4)
Fast speed level (Code c64 = FAST)