By Flo Control



Part # 170015

Alternate Part #'s 26-350-1144, NDS1700-15

Product Description

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

Product Specifications

1 1/2 in.
1/2 lbs.

?     Asked on 11/30/2007by Guest

How long is this valve?

A  Answered on 11/30/2007 by InyoPools Product Specialist Patrick P.

According to the manufacturer, the valve is 8.345" long.

?     Asked on 1/18/2012by Guest

Is it possible to purchase just the insert part of this as a replacement?

A  Answered on 1/18/2012 by InyoPools Product Specialist Patrick P.

There is no replacement part for that and you would need to replace the whole unit.

?     Asked on 9/16/2014by Guest

My spa drains when the pool pump is off. Will adding or replacing one of these fix this?

A  Answered on 9/16/2014 by InyoPools Product Specialist Patrick P.

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.

?     Asked on 6/2/2015by CHERYL

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??

A  Answered on 6/13/2015 by InyoPools Product Specialist Lennox H.

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.

?     Asked on 6/22/2015by Jerry Shannon

will this check valve work with flex lines? What parts do I need to use this on a flex line operation.

A  Answered on 6/23/2015 by InyoPools Product Specialist Lennox H.

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.


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