Armstrong offers a full range of steam traps, including bucket steam traps, float and thermostatic (F&T) traps, and their repair parts. These traps efficiently move condensate, air, and CO2 out of steam systems. This operating efficiency means less fuel is burned, in turn reducing emissions and saving money. Armstrong steam traps provide minimal steam loss, long life and dependable service, corrosion resistance, operation against back pressure, and little to no dirt problems.
Armstrong float and thermostatic (F&T) steam traps are available in a wide variety of sizes and pressure ranges. All models have stainless steel floats and high-quality thermostats. Many are available in both standard capacity and high capacity versions. F&T traps work well on both light and heavy loads of steam heat generated condensate. These traps are meant for low-pressure steam heating systems (15 psi and under) as well as higher steam pressures up to 175 psi. F&T traps feature separate orifices for condensate and air, which provide continuous condensate drainage and air venting even under conditions of zero pressure. A level connects the ball float to the valve and seat. Once condensate reaches a certain level in the trap, the float rises, opening the orifice and draining condensate. A water seal formed by the condensate prevents live steam loss. Since the discharge valve is under water, it is not capable of venting air and non-condensables. When the accumulation of air and con-condensable gases causes a significant temperature drop, a thermostatic air vent in the top of the trap discharges them.
Armstrong bucket steam traps are a robust mechanical steam trap available for pipe sizes from 1/2" to 2-1/2". Bucket steam traps are widely used on both low-pressure steam heating systems (15 psi and under) as well as higher steam pressures up to 950 psi. The trap's simple design is a unique leverage system that multiplies the force provided by the bucket to open the valve against pressure. They feature stainless steel valve and seats. There are only two moving parts in an inverted bucket—the valve lever assembly and the bucket. The trap opens and closes based on the difference in density between condensate and steam. It is recommended to replace the trap's internal valve mechanism and cover gasket every five years to ensure proper steam trap operation.
Armstrong liquid drain traps deploy the same lever mechanisms, valves, and seats as inverted bucket traps. These liquid drain traps are used to drain liquids from most gases, for example water from compressed air. The trap removes the water and prevents the escape of air. Liquid drain traps are available for service pressures up to 1000 psi. Models available in both cast iron body and stainless steel body construction. Armstrong liquid drain traps feature an elliptical float and high leverage, which make it possible to open large orifices to provide adequate capacity for drain trap size and weight.
Armstrong radiator traps are designed for low-pressure steam heating systems. Armstrong Series TS radiator traps are offered in angle patterns, available in either 1/2" or 3/4" pipe connections. The TS-3 is a heavy duty, wafer-type trap for the drainage of all types of steam radiators and convectors. Its wafer design is well suited to systems prone to water hammer, which may damage conventional bellows-type units. The TS-3 is repairable in-line and features an all-stainless steel wafer element. The internal radiator trap thermostat is a long-lasting capsule. Easily replaced, the stainless steel thermostat operates efficiently even in the harshest conditions.
Armstrong pump traps are a non-electric option that utilize inexpensive steam, air, or gas for operation and has no seals, motors, impellers, or electric components to fail. They feature a compact, low-profile design that allows for maximum pump capacity with minimal fill head and floor space requirements.
State Supply offers a large range of steam traps repair parts for Armstrong bucket steam traps, float and thermostatic (F&T) traps, air vents, liquid drain traps, and radiator traps. Examples of the types of repair parts offered include floats, buckets and mechanisms, covers, gaskets, cage units, valve mechanisms, head assemblies, thermostats, and more.