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Prevent reverse flow where leak-tight shut-off is not mandatory. When differential drops below cracking pressure, valve closes. With all-metal components, valve can be used up to 1200°F (649°C). See Technical Information section for connection temperature limitations. (Not for use as a relief valve.)
Ball and poppet are an integral design to assure positive, in-line seating without "chatter". Poppet is designed essentially for axial flow with minimum pressure drop.
Materials: 316 Stainless Steel: body, cover, cover gland, ball poppet, cover gland. 300 Series Stainless Steel: spring
Minimum operating temperature for standard ball check valves -110° (-79°C).
For low temperature option to -423°F (-252°C) add suffix LT (Low temperature spring).
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