Armstrong Float & Thermostatic Steam Traps are available in a wide variety of sizes and pressure ranges. All models have stainless steel floats and high-quality thermostats. Available in both standard capacity and high capacity models. Armstrong “A” and “B” series float & thermostatic steam traps are a high quality F&T trap, built for years of reliable operation. The Armstrong “K” and “J” series F&T steam traps are high-capacity steam traps, installed on heating and processing equipment that quickly gives up heat. Armstrong F&T Traps are on-the-shelf and ready for same-day shipping!
Armstrong Float & Thermostatic Steam Traps are built with heavy-duty cast iron or cast steel construction. The stainless steel interior of the Armstrong F&T traps contains an intelligent design to match! Thanks to separate sections for condensate and air, Armstrong Float & Thermostatic Steam Traps provide continuous condensate drainage and air venting, even with zero pressure. Armstrong's tough construction and intelligent design adds up to a float & thermostatic steam trap that can withstand an incredibly high variance in pressure loads. As Armstrong says, "The more your pressure varies, the more you need Armstrong F&T's."
Optional integral vacuum breakers ~ Provide maximum protection against freezing and water hammer in condensing equipment under modulated control. They also eliminate another fitting being installed in the line.
High-capacity venting of air and CO2 ~ Built-in thermostatic air vent discharges large volumes of air and CO2 through its separate orifice - even under very low pressure conditions.
Water sealed valve ~ Steam cannot reach condensate discharge valve because it is always under water. Balanced pressure thermostatic air vent closes on steam at any pressure within the operating range of the trap.
Continuous drainage ~ No pressure fluctuations due to intermittent condensate drainage. Condensate is discharged at ver close to steam temperature. No priming needed.
Resistance to damage from water hammer ~ Open bucket or float will not collapse as a result of water hammer.
Operation against back pressure ~ Trap operation is governed solely by the condensate level in the trap. Back pressure in the return line will not render the trap inoperative as long as there is any pressure differential to force condensate through the discharge valve.
Long life and dependable service ~ Valve is stainless steel in all sizes. Seat is heat treated in 1½ pipe size and larger. Rugged float mechanism is built to resist wear, and the stainless steel float provides exeptionally high collapsing pressure and resistance to hydraulic shock.
Corrosion resistance ~ Entire float mechanism is made of stainless steel. The float is Heliarc welded to avoid the introduction of dissimilar metals, which could lead to galvanic corrosion and float failure.
No water seal at inlet ~ Inlet high on body and condensate discharge valve in the bottom of the body prevent formation of water seal that could block flow of air to vent under very low pressure conditions.