By Hayward Pool Products
Part # 6651-108
Manufacturer Code PSXVDE
Dimensions 5" L x 2" W x 2" D
Valve Key Assembly - PSXVDE
Why is it called a "Valve Key Assembly" and what are the parts to it called. Is the part where the handle goes called the stem? If not, what? And what is the part that actually regulates the flow of water called and lastly the bottom portion that fits in the center of the valve body?
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It sweeps in front of the port opening and closing like a key lock and unlocks. Top is the stem. A common name is the sweep as it sweeps across the ports to open and close. anchor stem is the bottom stops movement of the key assembly.
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Thank-you. In taking apart the Hayward PSV valve I found that the cover actually stops the valve from moving more than 180 degree's through the use of a pair of raised edges. My pool builder had created a situation whereby the pump could be starved of water and each of the 4 other valves could prevent water from returning to the pool. Is it customary to turn the pump off before changing valve positions?
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These valves do not require the pumps to be off when rotating and do have a stopper on the cover as to prevent the handle from being turned too much so no resistance is accidentally applied to the pump suction.
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Unfortunately my pool builder set the valve up so that it could either (a) block water to the pump, (b) block the main drain, (c) block the skimmer. I read in one of your articles on valves that the valve should be set to never block the flow of water the pump, so now it can (a) block the skimmer, (b) block the mains drain, or (c) allow a mixture from the two, or (d) allow both.
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In some cases, these are set up to be able to block flow to the pump to prevent the pump from losing water for better priming, however, it is not typically recommended.
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Does PSXVDE fit for a replacement of PSV 3S2 ? It is actuated by electric actuator so I don't need the handle. Additionally which seals that I need to order for the cap ?
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