Armstrong International 880-3/4-150 3/4″ NPT 150 PSI Cast Iron Inverted Bucket Steam Trap #38

Description

The Armstrong International Series 880 Cast Iron Inverted Bucket Steam Trap (Model 880-3/4-150) is a dependable, time-tested solution for efficient condensate and air removal in steam distribution and process systems. Built for demanding industrial and commercial HVAC applications, this trap delivers consistent performance and long service life.

Product Overview

The inverted bucket design is one of the most rugged and reliable steam trapping mechanisms available. As condensate fills the trap body, the inverted bucket loses buoyancy and opens the discharge valve, expelling condensate and non-condensable gases. When steam enters, the bucket floats and closes the valve — preventing live steam loss and maximizing system efficiency.

Key Features

• Series 880 inverted bucket steam trap design for reliable, continuous condensate discharge
• 3/4″ NPT connections for straightforward installation into standard steam piping
• Rated to 150 PSI maximum allowable pressure (MAP)
• Cast iron body construction for durability in commercial and light industrial steam systems
• #38 orifice for optimized condensate handling capacity at rated pressure
• Discharges condensate intermittently, minimizing live steam loss
• Vents air and non-condensable gases on startup for faster system warm-up
• Proven Armstrong International engineering for long-term reliability

Specifications

• Model: 880-3/4-150
• Series: 880
• Connection Size: 3/4″ NPT
• Maximum Allowable Pressure (MAP): 150 PSI
• Body Material: Cast Iron
• Trap Type: Inverted Bucket
• Orifice: #38
• Brand: Armstrong International

Applications

• Steam distribution mains and branch lines
• Unit heaters and heat exchangers
• Commercial and industrial HVAC steam systems
• Process heating equipment
• Drip leg condensate removal