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EDITORIAL CATEGORY - VALVES
Set it & Forget it   Water & Wastes Digest August 2005   By Bob Elliott
Keeping the environment clean is a top priority for the authority. Wastewater is processed biologically, with none of the chemicals that are typically used, and achieves complete nitrogen removal. Specifically, the process removes CBOD, suspended solids, ammonia as nitrogen, nitrates, nitrites and phosphorus.
No Longer Singing the Blues   Water & Wastes Digest March 2005   By William H. Simendinger
Composite valves incorporated into Blue Plains Advanced Wastewater Treatment Plant outperform expectations while helping improve operations
Mission Possible   Water & Wastes Digest October 2004   By Megan Larson
When the conditions are right, the Struvite will rapidly form crystals that spread throughout a pipeline forming a concrete-like crust.
Silent Treatment   Water & Wastes Digest October 2003   Megan Rapaduski
Michael Goltz, superintendent of the Mt. Horeb, Wis., Wastewater Treatment Plant, settled on the Val-Matic Swing Check Valve because it specifically addressed the slamming and clogging problems exhibited by the previous swing check valves.
Focus On Troubleshooting Water Softeners   Water Quality Products March 2003
Water Quality Products went in search of an expert to bring you the top troubleshooting tips for valves. The search led to Jay Runkle, employed in technical services at Pentair Water Treatment. According to Runkle, issues quickly can be sorted out if you know what to look for. Here are Runkle?s top 10 dilemmas, accompanied by probable causes and suggested antidotes.
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New Valves Maintain Piping System Integrity at High Temperatures, Provide Increased Chemical Reaction Time   Water & Wastes Digest March 2003
PVDF (polyvinylidene fluoride), a flouroplastic, is the material of choice for high purity water and chemical applications due to its excellent purity, temperature, surface and strength characteristics. The material expands as the temperature increases. George Fischer, Inc. designed the first SYGEF® PVDF High Temperature Resistant (HTR) diaphragm valve; it incorporates secondary sealing components manufactured from high purity TFM within the valve body to absorb the different expansion characteristics of the valve materials.
A New Option in Valve Actuators Strengthens Control of Filtering Operations   Water Engineering & Management January 2003
Water works engineers are now turning to a new generation of pneumatic valve actuators that are capable of executing the instructions of electronic control systems with the necessary precision to accurately control effluent flow. Surprisingly simple but rugged in construction, this new breed of actuators also is meeting the need to reduce downtime, as some of the first ones to debut in 1981 are still in operation without needing a spare (new) part.
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Editorial Emphasis: Valves   Water & Wastes Digest October 2001
New Spring-loaded Check Valve Reduces Valve Failure Risk
Products In Action: Sludge Equipment #2   Water & Wastes Digest September 2001   Red Valve
Pinch Valves Control Flow at Georgia Solids Treatment Process Plant
Editorial Emphasis: Instrumentation   Water & Wastes Digest August 2001   Burkert
Connection of Sensors to Valves Is Chemical Plant’s Formula for Total Quality
New Ductile Iron Check Valve Stops Water Hammer In Louisiana Municipality   Water & Wastes Digest August 2000
After suffering years of water hammer problems and the resulting effect on maintenance personnel and equipment, the St. Charles Parish Municipality in Louisiana needed a product that would save them both time and money. Milliken Valve Company of Bethlehem, Pa., provided the answer.

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