Specialty Products
...and gaskets are designed to eliminate problems inherent in thermal transients. Noise Reduction Devices for Systematic Noise Control An economical way to reduce control valve or reducing valve noise by 6 to 12 dBA is to install the Les-Sonic Silencing Orifice downstream from the valve between two flanges. A Leslie Noise Suppressor installed... See #2.
Watson McDaniel: Pressure Reducing Valve Selection
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Keckley - Pressure Reducing Valve, Relief Valves
The Keckley Company is the leading manufacturer of cast iron, and bronze Pressure Reducing and Relief acting Valves. See #4.
Boylston Twenty-First Century, LLC - Figure No. 205
Boylston Pressure Reducing Valve Figure No. 205 Page. See #5.
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