Table 11: Pneumatics Single Acting Standard Flow
Air Supply
Dry, oil-free, 5 micron filtered air (per ISA S7.3)
Action
Direct Acting
Supply Pressure
15 to 100 psi max. (1.03 to 7 Bar)
Regulate 5 psi minimum above actuator spring
range. Do not exceed actuator rating.
Air Delivery
10.0 scf/min (283 L/min.) at 30 psi (2.1 bar) supply
16.6 scf/min. (470 L/min.) at 60 psi (4.2 bar) supply
23.3 scf/min. (660 L/min.) at 90 psi (6.3 bar) supply
Air Capacity
(flow coefficient)
Loading CV = 0.30
Venting CV = 0.40
Air Consumption
0.19 scf/min. (5.4 L/min.) at 30 psi (2.1 bar) supply
0.30 scf/min. (8.5 L/min.) at 60 psi (4.2 bar) supply
0.40 scf/min. (11.4 L/min.) at 90 psi (6.3 bar)
supply
Air Supply Failure
On supply failure the actuator output fails to
atmosphere. Some overshoot may occur when
air pressure returns after a period without air
supply pressure.
Loss of Input Signal
Actuator Output fails to atmosphere
Output Pressure
0-100 psi (6.9 bar) max
Masoneilan SVi1000 Positioner Quick Start Guide
=
|
69
© 2016 General Electric Company. All rights reserved
.