| Model | 180-LD | 181-LD |
| Maximum Capacity | 1,100 lb/hr (499 kg/hr) | 2,000 lb/hr (907 kg/hr) |
| Maximum Allowable Temperature |
500 psig @ 100°F (35 barg @ 38°C) 440 psig @ 500°F (30 barg @ 260°C) |
500 psig @ 100°F (35 barg @ 38°C) 440 psig @ 500°F (30 barg @ 260°C) |
| Maximum Allowable Pressure |
500 psig (35 bar) | 500 psig (35 bar) |
| Body Material | 304-L Stainless Steel | 304-L Stainless Steel |
| Connection Type | Screwed, Socketweld |
Screwed, Socketweld |
| Connection Sizes | 1/2″ (15 mm) | 3/4″ (20 mm) |
All-stainless steel for horizontal installation.
Armstrong’s stainless steel, free-floating guided lever drain traps use the same bodies, caps, lever mechanisms, valves and seats as Armstrong inverted bucket steam traps that have been proved in years of service. Elliptical floats and high leverage make it possible to open large orifices to provide adequate capacity for drain trap size and weight.
The hemispherical valve, seat and leverage of the 180-LD and 181-LD stainless steel traps are identical in design, materials and workmanship to those for saturated steam service up to 570 psig (39 barg), except that the 180 Series traps have a guidepost to ensure a positive leak-tight valve closing under all conditions. The 180 Series is designed for situations where mounting a drainer close to the floor is critical. A back vent connection is required.
