39
Installation and Set Up
Connecting the Tubing and Air
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
Isolate the valve from the process and disconnect air tubing
from the positioner. Disconnect air fully to avoid injury or
process damage.
1. Install the tubing to the air supply port
S
(arrow only for High Flow).
2. For a:
Single acting actuator: Pipe the outbound air from the output pressure
port
I
(arrow only for High Flow) to the actuator.
Double acting actuator: Pipe output pressure port one
I
(no letter for
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.
3. Air supply:
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)
NOTE
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
Dew Point
At least 18° F (-7° C) below minimum anticipated ambient
temperature
Particulate Matter
Filtered to 5 microns
Oil Content
Less than 1 ppm w/w
Contaminants
Free of all corrosive contaminants
Air Supply Requirements
Summary of Contents for SVI II AP-2
Page 6: ...GE Oil Gas SVI II AP Quick Start Guide 6 ...
Page 10: ...10 GE Oil Gas ValVue SVI II AP Quick Start This page intentionally left blank ...
Page 64: ...64 GE Oil Gas ValVue SVI II AP Quick Start This page intentionally left blank ...
Page 90: ...90 GE Oil Gas ValVue SVI II AP Quick Start Spare Parts ...
Page 91: ...91 Specifications and Spare Parts ...