Hayward SPX0740D 3 spoke valve seat gasket for SP0740DE filter valvesHayward OEM Valve Seat Gasket for SP0740DE Valves, SPX0740D In stock$3899
Hayward SPX0740D 3 spoke valve seat gasket for SP0740DE filter valves
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Hayward OEM Valve Seat Gasket for SP0740DE Valves, SPX0740D

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$3899
In stock
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Quick overview

  • The spider gasket This is the seat gasket that separates the multiport positions, commonly called the spider gasket.
  • 3 spoke pattern The 3 spoke layout matched to the SP0740DE valve seat.
  • Genuine Hayward OEM part SPX0740D, not a generic gasket cut to fit.
  • Fits SP0740DE valves Made for the Hayward SP740 DE filter valve family.
  • Stops the bypass A worn spider gasket lets water cross between ports, which is why sand or DE turns up in the pool or the waste line never fully shuts.
  • Cheapest fix on the valve Replacing the gasket restores a valve that otherwise looks like it needs replacing outright.
Full description and specifications ↓

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Product details

The Hayward SPX0740D is the valve seat gasket, commonly called the spider gasket, for Hayward SP740 DE filter valves. It has the 3 spoke pattern and is a genuine Hayward OEM part.

What the spider gasket does

Inside a multiport valve, the seat gasket is the ring of raised spokes that separates one port from the next. The rotor presses against it, and those spokes are the only thing keeping filtered water, backwash flow and the waste line from mixing. It is a small rubber part doing all of the sealing work in the valve.

Symptoms of a worn gasket

When the spokes flatten, tear or take a permanent set, water starts crossing between ports. DE or sand shows up in the pool, water trickles out of the waste line while the valve sits in filter, or the valve simply refuses to hold a position. Replacing the gasket brings a valve back that otherwise looks scrap.

While you are in there

The key stem assembly, cover o-ring, shaft seal and key cover with handle are separate Hayward parts. Since the valve has to come apart anyway, it is worth inspecting all of them before you close it back up.

Specifications
Brand Hayward
Manufacturer part number SPX0740D
UPC 610377036054
Type Valve seat gasket, spider gasket
Pattern 3 spoke
Part type Filter valves part
Fits Hayward SP740 DE filter valves
Shown on Hayward SP0740 DE 2 inch Selecta-Flo valve parts diagram
Shipping weight 0.05 lb
Ships Parcel

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Questions and answers

What people ask about this product, answered by our pool techs.

Is this the same thing as a spider gasket?
Yes. Valve seat gasket and spider gasket are two names for the same part, named for the spoked shape that separates the multiport positions.
Which valves does it fit?
Hayward SP740 DE filter valves. It appears on the Hayward SP0740 DE 2 inch Selecta-Flo valve parts diagram.
Why is DE getting back into my pool?
A failed seat gasket lets water bypass between valve ports, so filtered and unfiltered paths mix. It is the first part to check when the valve leaks internally.
Do I need anything else to do the job?
The key stem assembly, cover o-ring, shaft seal and key cover and handle assembly are separate Hayward parts, and it is worth inspecting them while the valve is open.
Ask your own question