
Quick overview
- Genuine Hayward part The factory SPX0740B valve cover.
- For the SP0740DE The 2 inch multiport valve used on Hayward DE filters.
- Top of the valve The cover holds the key stem down and carries the position markings the handle points to.
- Cracks show as leaks A hairline crack in the cover weeps under pressure and gets worse every season.
- Bolted assembly The cover pulls down onto the valve body, so it has to be flat to seal.
- Pairs with the key stem If the cover is off, it is the moment to inspect or replace the key stem assembly.
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Product details
This is the Hayward SPX0740B, the 2 inch valve cover for the SP0740DE multiport valve. It is the genuine Hayward part.
What the cover does
The cover is the top casting of the valve. It bolts down onto the body, holds the key stem in position, and carries the printed positions the handle points to. It is not a decorative lid: the clamping force it applies is part of what keeps the key sealed against the seat.
Why covers get replaced
Two reasons, mostly. Cracks, which start as a weep under pressure and grow with every freeze and every over tightened bolt. And wear at the stem opening, which lets the stem wobble and stops the key from seating squarely. Either one turns into a valve that will not hold its position or a puddle under the filter.
While it is open
With the cover off, the key stem assembly and the seat gasket are right there. If the valve has been in service for years, inspecting them at the same time avoids taking the same valve apart twice in one season.
| Brand | Hayward |
|---|---|
| Manufacturer part number | SPX0740B |
| UPC | 610377036023 |
| Type | Valve cover |
| Valve size | 2 inch |
| Part type | Filter valves part |
| Fits | Hayward SP0740DE multiport valve |
| Shipping weight | 0.96 lb |
| Ships | Parcel |
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