Part # 170015
True Union Spring Check valve. Easy entry removable body, for visual inspections or cleaning. Available in clear. Each valve is specially designed to be disassembled by unscrewing the nuts in line leaving the tail pieces solvent cemented to the pipe. This true union allows you to remove the body for repairs, or cleaning, even providing the opportunity to change the body or spring tension.
Sizes 1½" & 2" IPS
Standard spring tension ½ lb. ( other spring loads available on special request )
EPDM seal and "O" Rings
200 PSI static pressure rating @ 72ºF
Stainless steel spring
Valve Body Length = 8.345" (Body Length Includes Unions)
Excess solvent trap
Is this valve corrosion resistant and can it be mounted vertically?
Yes, it can be mounted vertically, but keep in mind that when this valve is horizontal the spring tension is 1/2 pounds. Due to gravity the spring tension might increase so the pump will have to have a high enough flow rate.
When my pool pump is off the water flows back to the pool and the pump takes about 20 min to prime when back on. Can I install a check valve between the pump and the filter (sand). If installed before the pump and the basket there may be a problem with leaves, etc in the check valve.
It is more common to install a check valve in front of the pump and as long as the skimmer basket is catching most of the leaves and debris then it should be fine.
what is the over all length of the valve. I need to know how much pipe to cut out and if I even have the room left to attach it.
Hi Andy, The length of this valve is 8.345" including the unions.
The unions at the bottom of the check valve are still leaking. We changed the o-rings but it's still leaking. what could be wrong? Do we need another check valve with the new unions/nuts?
Joanie, If the check valve is still leaking after replacing the o-rings, there may be dirt/debris in the threads of the unions. If there isn't any, I would recommend replacing the check valve.
will this check valve work with flex lines? What parts do I need to use this on a flex line operation.
Hi Jerry, Check valves are not recommended to use with flex pipe, you will need the use PVC for the check valve then connect the PVC to the check valve using a 2" slip x slip coupling. You can find such coupling at your local hardware store.
My raised spa drains back to the pool when the pump is off. My question is where do I place the check valve at? Do I put it after the chlorinator (check valve being the last thing out) or do I install it between the heater and chlorinator (check valve being second to the last thing out) chlorinator being last thing out??
Cheryl, You will need to install the check valve after the chlorinator, the check valve should be the last thing on the return to the Spa.
My spa drains when the pool pump is off. Will adding or replacing one of these fix this?
Yes that very well may solve the issue. Per gravity, a raised spa will drian into the pool if the check valve is bad or if there is not one there.
Is it possible to purchase just the insert part of this as a replacement?
There is no replacement part for that and you would need to replace the whole unit.
How long is this valve?
According to the manufacturer, the valve is 8.345" long.
(5 out of 5 stars) Made it easy to install an inline chlorinator
Reviewed By: Mark A. from Stafford, VA ()
Pros: Easy to install, sturdly built
Cons: Unsure about corrosion resistance to chlorine
I used this as a check valve to protect my pool heater from an in line chlorinator. It's not the one recommended by the manufacturer of the chlorinator(Rainbow), but theirs wasn't built with the screw on unions. This made it really easy to install the chlorinator, and will make any future repairs equally easy.