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Check Valves and Backflow Preventers

Protect potable water supplies from contamination or pollution with check valves and backflow preventers from Grainger. When pressure fails or is reduced for water, it can bring contaminated water from the ground, from storage or from other sources drawn from the system. Hydronic, flow check valves provide positive shutoff when the circulator is not running.

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Check Valves and Backflow Preventers Q&A

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Check Valves and Backflow Preventers
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I want to use a shallow well pump in stead of a sump for a pit. There are times when the pit is dry. If the pump loses its prime, it will not work. Which check or foot valve will hold water in the suction line so the pump does not lose its prime?
5 months, 3 weeks ago
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Answer: 
Without knowing your pipe size, we cannot make a specific product recommendation. Please look at the foot valves on page 4107 of the current catalog, number 404. Please bear in mind that no valve will hold a prime indefinitely.

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5 months, 2 weeks ago
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Answer: 
We cannot answer your question just yet, and have to ask if you can contact us at 1-800-GRAINGER to discuss what type of unit you are looking for, as well as the size it will need to be.

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