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. They are typically used for accurate control, throttling, and shut-off duties in the chemical, petrochemical, chlorine, paper, electro-plating, and many other industries. GAR-SEAL butterfly valves offer reduced maintenance requirements and increased operational reliability.
This packing requires no tightening. It performs best when run loose (finger-tight). Normal operating pressure expands the lips to compensate for wear until the packing is completely worn out. Materials Standard Material Material composition includes Nitrile elastomer and cotton fabric specifically formulated to be compatible with petroleum oils and gasoline commonly fo...
. Each ring is precision-ground to assure uniformity of bearing contact in precision barrel tube or working barrel. The rubber is compounded to resist bloom that gives unnatural swell. The material will resist temperatures up to 270°F (132°C) with excellent results.
Precision-molded nylon-plastic material Resistant to hydrocarbons Available in all popular sizes, from 1-1/4in (32mm) to 2-1/4in (57mm) Temperature Capability: -40°F (-40°C) to 350°F (177°C) No special tools needed for installation