Is a Variable Refrigerant Flow System the Right Choice for Your Facility?

Variable Refrigerant Flow (VRF) systems are fairly new to the U.S., but have been used in Japan, Europe and South America for nearly three decades. With these HVAC systems the compressor unit uses variable refrigerant flow and is controlled by a variable-speed drive. VRF systems (also known as VRV – Variable Refrigerant Volume) use refrigerant … Continued

Effective Low-Cost Water Treatment for Process Systems with Ultraviolet Technology

Ultraviolet (UV) technology is an effective, low-cost alternative to chlorine for water treatment purposes. Common uses for UV technology in water treatment include: Disinfection Total Organic Carbon/Total Oxidizable Carbon (TOC) Reduction Chlorine/Chloramines Destruction Ozone Destruction How UV works Ultraviolet (UV) rays fall between x-rays and visible light on the electromagnetic spectrum, making them invisible to the human … Continued

Falls in Construction are Preventable

Falls in construction are the leading cause of fatalities in the industry.   Fall Protection in construction was the number one cited OSHA standards violation in FY 2012.   In 2011 there were 259 fatalities from falls out of 738 total fatalities.  This increased in 2012 to 280 fatalities from falls out of 775 total fatalities in … Continued

Save Energy and Reduce Costs with Combined Heat and Power

Combined Heat and Power (CHP), also referred to as cogeneration, is an integrated energy system that produces both heat and electrical power from a single fuel source…typically a gas-fired engine generator. Applications of CHP include: Residential  Industrial  Institutions Commercial buildings  District energy plants  How Combined Heat and Power Works The generator used for combined heat … Continued

Consistent Precision for Cleanroom Components with Orbital Welding

Welding is a method of repairing or creating metal structures by joining pieces through various fusion processes. Welding technology has been around since man began manipulating metals, and the earliest evidence of welding can be traced back to gold boxes made in the Bronze Age.  The technology has remained essentially the same until the 19th … Continued

Tips for Successful Job Hazard Analysis

A job hazard analysis (JHA), also called a job safety analysis (JSA), is a safety procedure used to identify hazards in the workplace before they result in serious injury or illness. A successful job hazard analysis identifies existing safety hazards and leads to the implementation of controls and procedures that reduce or eliminate these hazards. … Continued

Modern Efficient Heating with Linkageless Burner Control Systems

Many boilers that are still in operation today continue to use an antiquated mechanical linkage system in which a single common actuator is used in conjunction with mechanical linkages to position both the air and fuel rates at the same time. This arrangement is not only inherently limited by design, but is also subject to … Continued

The Benefits of Weir-Type Diaphragm Valves

Fluid and gas systems that process specialty chemicals, especially in regulated markets such as biopharmaceuticals, must be designed to the most stringent of standards. Engineers and piping designers are constantly verifying component compatibly within a given system, including diaphragm valves (or membrane valves) which are a major component in any clean (hygienic) fluid system. The … Continued