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883 Cast Iron Inverted Bucket Steam Trap

The Armstrong 883 Cast Iron Inverted Bucket Steam Trap is the largest-connection model in the 880 Series, featuring an integral strainer and connections up to 1-1/4″ (32 mm). Cast iron body rated to 250 psig at 450°F (17 bar at 232°C), handling up to 4,400 lb/hr (2,000 kg/hr) at 250 psig MOP.

Like all 880 Series traps, the 883 uses a free-floating stainless steel mechanism. The integral strainer protects against pipeline debris while the self-cleaning discharge orifice prevents buildup.

Key Features

  • Integral strainer eliminates need for separate line strainer
  • Largest connections in 880 Series — up to 1-1/4″ (32 mm)
  • Free-floating stainless steel mechanism
  • Continuous air and CO₂ venting
  • Field-repairable internals
  • Resistant to water hammer

Applications

Ideal for larger steam mains and process equipment. Available with screwed NPT and BSPT connections in 3/4″ (20 mm), 1″ (25 mm), and 1-1/4″ (32 mm) sizes.

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811.80

  • Brand
  • Maximum Allowable Pressure
  • Connection Type
  • Connection Size
  • Maximum Operating Pressure (PSI)
  • Orifice Size (In.)
  • Body Material
  • Mounting
  • Steam Trap Type
  • Series
  • Adders
Terms and Conditions
30-day money-back guarantee
Shipping: 2-3 Business Days
Connection Size 3/4″ (20 mm), 1″ (25 mm), 1-1/4″ (32 mm)
Connection Type Screwed NPT
Body Material ASTM A48 Class 30 Cast Iron
Maximum Operating Pressure (PSI) 15, 30, 60, 80, 125, 180, 250
Maximum Allowable Pressure 250 psig @ 450°F
Adders None, Thermic Vent Bucket, 3/4" Check Valve, Thermic Vent and 3/4" Check Valve
Orifice Size (In.) 1/4", 3/16", 5/16", 1/2", 3/8", 7/32", 9/32"
Brand Armstrong International
Mounting Side Inlet-Side Outlet
Steam Trap Type Inverted Bucket
Series 880 Series
Brand: Armstrong International
Maximum Allowable Pressure: 250 psig @ 450°F
Connection Type: Screwed NPT
Body Material: ASTM A48 Class 30 Cast Iron
Mounting: Side Inlet-Side Outlet
Steam Trap Type: Inverted Bucket
Series: 880 Series