TDW PIG-SIG V - Applications Requiring Special Versions

68
Section VIII – Application Guide
1.0 Continued
The following are recommended applications:
• Gas
• Clean crude
• Clean water
• Refined products
• New lines
• Launchers
• Side mounts (non-extended units)
• Black powder: gas or low-viscosity fluids
• Iron contaminants: gas or other low-viscosity
liquids pipelines (produced water, sea water)
• Highly-corroded pipes where iron
shaving/fillings/debris is known to be present (low
viscosity)
• Refined products with corrosion or other ferrous
debris
1.2 Applications Requiring Special Versions of
PIG-SIG V
• Known heavy wax crude lines
• Ammonia: no copper-based (brass) components
(standard stainless PIG-SIG V okay)
• Acids
• Caustics
• High-temperature: consider magnet, spring, an
d
PT
FE (PIG-SIG V trigger housing), and O-ring
limitation
• Low Temperature: Consider material an
d
pos
sible O-ring limitation