Connecting The Tubing And Air Supply - GE SVI II AP-2 Quick Start Manual

Installation and Set Up

Connecting the Tubing and Air Supply

The last step in hardware installation for the SVI II AP is to connect the air supply
to the positioner. This section describes the process for connecting the tubing and
air supply to a single and double acting positioner.
WARNING
1. Install the tubing to the air supply port S
2. For a:
3. Air supply:
NOTE
Dew Point
Particulate Matter
Oil Content
Contaminants
Isolate the valve from the process and disconnect air tubing
from the positioner. Disconnect air fully to avoid injury or
process damage.
Single acting actuator: Pipe the outbound air from the output pressure
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I (arrow only for High Flow) to the actuator.
port
Double acting actuator: Pipe output pressure port one
High Flow) for one side of the actuator and output pressure port two
II (arrow only for High Flow) for the other side of the actuator.
Supply pressure for single acting SVI II and AP High Flow:
20 -100 psi (1.4 - 6.9 bar) (138 - 690 kPa)
Supply pressure for double acting SVI II AP:
25 - 150 psi (1.73 - 10.4 bar) (172.4 - 1034 kPa)
Minimum tubing diameter 1⁄4" (6 mm x 4 mm)
The SVI II AP Digital Valve Positioner is designed to operate
with clean, dry, oil-free, instrument grade air to ANSI-ISA-57.3
1975 (R1981) or ISA-S7.3-1975 (R1981) or with a sweet
natural gas supply (SVI II AP models SVI II AP/SD through
SVI II AP/AD).
Table 6
At least 18° F (-7° C) below minimum anticipated ambient
temperature
Filtered to 5 microns
Less than 1 ppm w/w
Free of all corrosive contaminants

Air Supply Requirements
39
Connecting the Tubing and Air
(arrow only for High Flow).
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I (no letter for
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