Model | 401-SH | 501-SH |
Capacities To | 770 lb/hr (349 kg/hr) |
950 lb/hr (432 kg/hr) |
Maximum Allowable Pressure | 1,000 psig (69 bar) |
1540 psig (105 bar) |
Maximum Allowable Temperature | 800°F (427°C) |
850°F (454°C) |
Body Material | Carbon Steel ASTM A106 GR. B |
316L Stainless Steel ASTM A312 |
Maximum Operating Pressure | 1000 psig (69 bar) |
1540 psig (105 bar) |
Connection Type | Screwed, Socketweld, Flanged |
Socketweld Flanged |
Connection Size | 1/2″ (15 mm) 3/4″ (20 mm) |
1/2″ (15 mm) 3/4″ (20 mm) |
Flow Direction | Vertical | Vertical |
Models 401-SH and 501-SH in carbon steel or stainless steel for vertical installation are made for overcoming the difficult combination of superheat and high pressure/low load service.
To survive this most severe steam service, Armstrong created an inverted bucket trap with a unique accumulation chamber. The chamber collects sufficient condensate to ensure full discharge cycles. A cup in the chamber floats up and down on the steam inlet tube, sealing it off as the condensate level rises.
At the same time as the chamber collects condensate, steam continues to flow under the bucket, making sure that the discharge valve closes tightly until the condensate rises into the trap body and the bucket falls down. The operation is on/off, no throttling or dribbling. In addition, you get all the familiar benefits of an inverted bucket steam trap.