PM Engineer articles from June 2003

PM Engineer archives from June 2003

More on Recovering Heat From Drain Water.
June 1, 2003... This is in response to a letter by Henry Gifford, Gifford Fuel Savings, Inc., entitled "Recovering Heat From Drain Water," printed in the March 2003 PME. Will GFX pass "black" water without fouling as the drain water is cooled? Yes, for...

RPA joins ISH North America. (News).
June 1, 2003... The Radiant Panel Association has announced that next year's REX trade show and annual convention will become a part of ISH North America, scheduled for Oct. 13-15, 2004, in Boston. "Combining numerous related events into one location such...

Bosch announces takeover offer for Buderus. (News).
June 1, 2003... Robert Bosch GmbH, Stuttgart, has made public a takeover offer in the amount of EUR 29.15 per share to the shareholders of Buderus Aktiengesellschaft, Wetzlar. Details on the terms of the takeover offer may be viewed in the offer document at...

Legionella training on Plumbing Systems and Cooling Towers announced. (News).(Brief Article)
June 1, 2003... "Minimizing the Risk of Legionella in Plumbing Systems and Cooling Towers" is a new one-day seminar for facility managers, engineers, plumbing code officials, plumbing inspectors, maintenance personnel and technicians. HC Information Resources...

The Plumbing Manufacturers Institute has announced two new two-day training workshops. (News Briefs).
June 1, 2003... The Plumbing Manufacturers Institute has announced two new two-day training workshops. The first will be held July 15-16 and will cover plumbing codes, standards, conformity assessment, certification and more. The second, on Tuly 29-30, will...

The NFPA Research Foundation has scheduled its symposium on Fire Risk and Hazard Assessment for July 9-11, at the BWI Airport Marriott in Baltimore. (News Briefs).(Brief Article)
June 1, 2003... The NFPA Research Foundation has scheduled its symposium on Fire Risk and Hazard Assessment for July 9-11, at the BWI Airport Marriott in Baltimore. Keynote speaker is Jack Snell, director of the Building and Fire Research Laboratory at the...

The National Standard Plumbing Code Committee. (News Briefs).(Brief Article)
June 1, 2003... The National Standard Plumbing Code Committee will consider proposed NSPC changes at a public hearing scheduled for Aug. 21 in Tysons Corner, VA. For more info, contact Julie Turner at (800) 533-7694, turner@naphcc.org.

In memoriam.(Brief Article)(Obituary)
June 1, 2003... Alan Gerber Lewis, former CEO of Gerber Plumbing Fixtures Corp., died suddenly on April 22, 2003, at the age of 56, He worked for the company nearly 30 years, serving as CEO from 1989 until he retired in 1999. He was the brother of Ila Lewis,...

Why AAVs should be accepted by the Plumbing Codes: here's Julius' list of reasons why air admittance valves should be accepted by all the plumbing codes. (Codes).
June 1, 2003... The IAPMO Plumbing Technical Committee (TC) met in Reno, NV, the last week of April. This is considered an off year for IAPMO since there are no code changes being considered. The meeting included a number of housekeeping items that had to be...

Forecasting the lifespan of a sprinkler system: the quality of water that flows through sprinkler piping can have a limiting effect on the lifespan of the system. (Fire Protection).
June 1, 2003... Let's begin with corrosion. Corrosion is. best understood as a force of nature to be reckoned with. Not only is the external corrosion that works on the buried ductile iron water supply piping a tangible risk, but the internal pipe and fittings...

Grease collection-Nothing but a Nuisance?: grease collection and disposal are a necessary evil for restaurant owners, providing cost-saving benefits as well as environmental protection.
June 1, 2003... A grease pit, as far as a restaurant owner is concerned, can be nothing but a money pit. Unless there is a recycling facility the units provide no direct financial benefit to the restaurant, are expensive to install and require continual...

Creating multiple water temperatures in hydronic heating systems.
June 1, 2003... Submixing and proportional reset are two of the ways water at different temperatures can be supplied to various subsystems in hydronic heating applications. Many hydronic heating systems use two or more types of heat emitters that require...

Back to basics: venting; this should clear up the confusion about venting in drainage system design.
June 1, 2003... Venting is often considered the most confusing part of plumbing design. How much venting is really needed? Is more better? What about floor drains? If you reduce venting back to the basics, it is easier to understand the design of venting...

New scale prevention requirements for thermostatic mixing valves.(International Plumbing Code revision)
June 1, 2003... At the 2002 International Plumbing Code hearings in Pittsburgh, PA, an interesting code change was passed that adds piping requirements for thermostatic mixing valves used in a system with a circulating pump. The new code section is now...

Back to basics: venting for gas-fired boilers.(observing the National Fuel Gas Code when installing boilers)(Column)
June 1, 2003... Ensuring the proper outdoor venting of flue by-products from a boiler is essential to proper boiler operation. Editor's Note: "Back to Basics" is a column that will run periodically in PME reviewing the basic principles of plumbing...

Multistage pump. (Products).
June 1, 2003... Grundfos Pumps Corp. has released a new compact horizontal multistage centrifugal pump with a built-in variable speed motor. The new integrated variable speed MLE motor enables the pump to work harder during peak demand and reduce speed when...

Snow Detector & Melting Control. (Products).
June 1, 2003... The Snow Detector & Melting Control 667 from tekmar Control Systems Ltd. is designed to control a single zone snow melting system with a single boiler. To provide slab and boiler protection, the 667 uses a variable speed injection pump. The...

Emergency voice evacuation control panel. (Products).
June 1, 2003... Fire-Lite Alarms, part of Honeywell's Fire Systems Group, has introduced the Audio Command Center 25/50, a versatile single or dual channel Emergency Voice Evacuation Control Panel (EVAC). Field-programming options include the capability for...

Wood panel radiant heating system. (Products).
June 1, 2003... Uponor Wirsbo offers contractors more choices with Quik Trak[R], its new wood panel system designed for fast, easy and cost-effective installations with special advantages for remodeling and retrofit projects. Quik Trak is an aluminum heat...

Actuators. (Products).
June 1, 2003... Invensys Building Systems' new Erie general close-off (AG) actuators now fit in baseboard systems. Measuring 2-3/8" wide, this patented, UL-listed actuator has improved close-off ratings and is designed to fit in virtually any style of heating...

Flexible sprinkler components. (Products).
June 1, 2003... FlexHead Industries has announced all stainless steel construction in its flexible fire sprinkler connections for suspended ceilings, as well as in new model designations featuring longer-length flexible hose components in each of the standard...

Bryan Indirect Water Heaters in larger sizes. (Products).
June 1, 2003... Bryan Indirect Water Heaters are now available in sizes to 8,000,000 Btu/hr, with water heating capacities to 16,000 gallons per hour (at [60.sup.*] temperature rise). A single unit can be used for domestic or commercial hot water and space...

Large-diameter fittings. (Products).
June 1, 2003... Charlotte Pipe and Foundry's new line of 10-inch and 12-inch PVC DWV molded fittings is now available. The fittings are injection molded, so they can offer greater structural integrity than fabricated fittings. Initially, they will be offered...

Tankless water heaters for emergency use. (Products).
June 1, 2003... Eemax has introduced its Series Twelve line of ANSI Z358.1-compliant tankless water heaters, specifically designed to provide "tepid" water (60-95[degrees]F) for emergency eye/face and drench shower applications. The new tankless water heaters...