Armstrong 881 3/4 in NPT Inverted Bucket Steam Trap, 1/4 in orifice

Armstrong's 880 Series inverted bucket steam traps are cast iron traps for horizontal installation with an integral strainer, continuous air venting at steam temperature, a free-floating stainless steel mechanism and a discharge orifice at the top of the trap.

Part D501325 is the Armstrong 881 in 3/4 in NPT with a 1/4 in orifice.

Model 881 specifications

• Maximum Capacity: 1,050 lb/hr (476 kg/hr)
• Maximum Allowable Pressure: 250 psig @ 450°F (17 bar @ 232°C)
• Maximum Operating Pressure: 250 psig (17 bar)
• Connection Type: Screwed NPT and BSPT
• Connection Size: 1/2″ (15 mm) 3/4″ (20 mm) 1″ (25 mm)

Manufacturer documentation: data sheet, installation and maintenance manual.