High Capacity Pump Trap - PT-516 | Armstrong | Americas

High Capacity Pump Trap – PT-516

High Capacity Pump Trap – PT-516

Product Specifications

Model PT-516
Connection Type 150# ANSI Flanged
Maximum Allowable Pressure 150 psig (10-3/10 barg)
Maximum Allowable Temperature 500°F (260°C)
Body Material Fabricated Steel 150 psi ASME Sec. VIII Design “U” Stamped
Mechanism Material Stainless Steel with Inconel X-750 Spring
Maximum Operating Pressure 150 psig (10 barg)
Maximum Capacity 80,000 lb/hr (29,902 kg/hr)
Inlet Connection Size 4″ (100 mm)
Outlet Connection Size 4″ (100 mm)

High Capacity Pump Trap – PT-516

The PT-516 High Capacity Pump Trap effectively recovers and returns hot condensate, which is essential to overall plant efficiency and energy conservation.  This low-maintenance, non-electric solution moves large amounts of condensate and other liquids from low points, low pressures, or vacuum spaces to an area of higher elevator or pressure. Condensate can be returned at temperatures well above the 200˚F (93˚C) limit of conventional electric pumps without the problems of leaking seals or cavitation.


  • Economical non-electric operation
  • Low-maintenance operation
  • Lower installation costs
  • Standard unit is intrinsically safe—explosion-proof
  • ASME code-stamped carbon steel body vessel
  • Internals are all stainless steel for corrosion resistance and long life
  • Springs are made from long-lasting Inconel X-750
  • Valuable Btu’s are captured and returned to the system
  • Can be used in flooded pits without fear of electrocution or circuit breaker defaults
  • Externally removable/replaceable seats can be replaced or cleaned without removing the mechanism assembly


  • Low-pressure heating systems
  • Process heat exchanger or coils with modulating steam control
  • Remote installations (tracing, tank farms, or remote coils)
  • Systems under vacuum
  • Hazardous (explosion-proof) areas
  • Caustic environments
  • Sumps or submersed areas
  • Reboilers
  • Flash tanks


  • CE