Associated Steam Specialty Co.

Water carried with air into tools or machines where air is being used will wash away lubricating oil. This means excessive wear to motors and bearings and, in the end, higher maintenance expense. Without adequate lubrication, tools—especially pneumatic hammers, drills, hoists and sand rammers—will run sluggishly and inefficiently, because the wearing surfaces are limited in size and the accelerated wear creates air leakage. Where air is used for paint spraying, enameling, food agitation and related processes, water andor oil cannot be tolerated. Nor can particles of grit or scale. In instrument air systems, water will tend to cling to small orifices and collect dirt, leading to erratic operation or failure of sensitive devices. When water gathers at low points in pipelines, it reduces the air-carrying capacity of the line. Eventually, airflow over the water will propel the water along the line, touching off water hammer and potential damage from a high-speed slug of water entering a tool. In cold weather, accumulations of water may freeze and burst lines. While there are a variety of options for compressed air system drainage, properly installed drain traps are the key to removing liquid continuously and automatically without wasting air or gas.

Armstrong unfired steam generators (USGs) are designed to produce pressurized clean steam using boiler steam or high-temperature hot water as an energy source. Typical uses for this clean steam include humidification, sterilization, pharmaceutical applications and food processing. USGs are constructed and stamped in accordance with ASME code. All tanks are registered with the national Board of Boiler and Pressure Vessel Inspectors, and an insurance compliance certificate is furnished. Unfired steam generators that generate 50 psi (3.4 bar) or greater steam pressure will be 100% X-rayed in accordance with the ASME code. Unfired steam generators from Armstrong are carefully designed to provide the correct balance of steaming area, coil size and control components to meet the specified requirements. In addition, they include an over-pressure safety system that will shut the unit down if the power fails. This over-pressure safety system closes both the feed-water and source steam valves, shutting the unit off.

Armstrong’s developments and improvements in refrigerated purger design and function have led to significant savings in energy, time and money. Armstrong offers three configurations to meet your individual needs: mechanical purgers, electric single-point purgers and Auto-Adaptive™ multipoint purgers. REFRIGERATION VALVES SOLUTIONS Armstrong introduces valve solutions for refrigeration systems. Armstrong’s state-of-the-art refrigeration valves are specifically designed for use in industrial ammonia and large commercial halocarbon refrigeration systems.

The Accelabar® is a new and unique flow meter that combines two differential pressure technologies to produce operating ranges never before attainable in a single flow meter. It is capable of generating high differential pressures for measuring gas, liquids and steam at turndowns previously unattainable—with no straight run requirements. HOW IT WORKS The Accelabar® consists of a unique toroidal nozzle design and a Verabar® averaging pitot. The nozzle has a patented straight run “settling distance” that accelerates, linearizes and stabilizes the velocity profile sensed by the Verabar®. The Verabar® located within the nozzle accurately measures and significantly increases the differential pressure output to increase the operating range (turndown). The Accelabar® has a constant flow coefficient and produces an accuracy of up to ±0.50%.

Orifice Plates are the most commonly used differential pressure measurement device and are applicable for measurements in gases, clean liquids, and low velocity steam. Orifice plates allow for relatively easy installation and replacement if necessitated by changes in process parameters or life cycle deterioration. Armstrong supplies components for a typical orifice meter installation including flange unions, gaskets, orifice plate, and appropriate pressure tap sets. Armstrong manufactures the orifice plates under strict control with high quality in observation with ASME and ISO 9001 certification standards. The orifice plates also meet AGA, ISA, ANSI, and API applicable codes. Nondestructive testing and special service options available

Many industrial processes involve the removal of airgas from a pressurized liquid. Armstrong air vents are ideally suited for this purpose. The float-operated design means the vents can instantly and automatically adjust to variations in gas flow and pressure. The air vents can handle gas removal from liquids with specific gravities as low as 0.40 and pressure to 2, 700 psi (186 bar). Armstrong air vents are available in a wide variety of sizes, end connections and construction materials. Applications for Armstrong float-type air vents include hydronic heating systems, water service lines, water storage tanks, centrifugal pumps, gas lines, solvent filters and similar equipment. Operation is completely automatic, and the simple design and quality mechanism make operation trouble-free and maintenance infrequent. Air can accumulate in remote sections of chamber-type heat-transfer equipment such as jacketed kettles, retorts, vulcanizers and jacketed sterilizers. Armstrong offers thermostatic air vents for positive venting of air and other non-condensable gases in such equipment.