SP PoolQuip Davey SpaQuip Check Valve - 40mm - One-Way

SP PoolQuip Davey Spa-quip (SpaQuip) Check Valve — 40mm — One-Way

SP PoolQuip, formerly Davey Spa-quip Full Flow — a one-way 40mm check (non-return) valve for pool and spa plumbing. The internals can be used on their own to rebuild an old, broken or leaking valve of the same pattern.

• Physically Stocked, unlike most "drop-shipping" websites.
• Shipped from VIC, NSW, WA, QLD

We recommend a better valve

This is a budget valve, and it is priced accordingly. We stock it because it is the direct pattern match for existing SP PoolQuip and Davey Spa-quip plumbing, and because the internals will rebuild an old valve without cutting pipe. If you are plumbing something new, or one of these has already failed on you, we would rather point you at a better valve:

• Hayward Jandy-Style 40mm Check (1-Way) Valve — our usual recommendation, and equivalent in quality and performance to a genuine Jandy valve.
• Zodiac Jandy® (Genuine) 40mm – 1.5" Check Valve — the original Jandy-pattern valve.

Handle colour — supplied as received

These may be supplied with a black, blue or red handle, and some carry a grey top. Which colour arrives is set by the manufacturer’s production run and is outside our control — we supply them exactly as they come to us, and we cannot guarantee or select a colour on request.

Colour has no effect on fit, function, dimensions or specification. All colours use the same mouldings and the same internals.

Not recommended as a 100% isolation valve

We do not recommend these as 100% isolation valves. A check valve is a non-return device: it resists reverse flow, but it is not a shut-off and will not hold back a full head of water indefinitely.

Where you genuinely need to isolate equipment for servicing, fit a dedicated isolation valve or drain down to below the plumbing line. Relying on a check valve for isolation is the most common cause of a wet pump bay during a service.

Specifications (approx.)

• Pipe: 40mm Pressure PVC (~48.5mm)
• Overall Width: ~165mm
• Overall Height: ~115mm
• Locking Nut Width / Diameter: ~108mm

Plumbing

The check valve body is designed to fit 40mm pressure pipe. Ensure that no glue enters the valve body — stray solvent cement on the seat will destroy the seal.

Maintenance

The transparent lid allows you to inspect water flow and check for debris lodged in the valve seal. To service the valve, unscrew the locking ring and remove the assembly. Lubricate with silicone lubricant only — petroleum-based grease will swell the seals. Avoid overtightening the locking ring.

Check valve position

Position the valve so there is 600mm of pipe in front of the pump. That gives sufficient head of water to keep the flap closed when the pump is switched off.

Rebadged and compatible ranges

This non-return valve has been sold under many different brand names and colours over the years, but the mouldings are the same. Alongside SP PoolQuip and Davey Spa-quip (SpaQuip) Full Flow, the same 40mm pattern turns up badged to Spas Direct, SpaPro and WWDG, and on a wide range of Australian-assembled and imported spas. If your old valve matches the dimensions above, the internals will interchange.

Other valves in this range

• SP PoolQuip 40mm 2-Way Valve
• SP PoolQuip 40mm 3-Way Valve
• SP PoolQuip 50mm 2-Way Valve
• SP PoolQuip 50mm 3-Way Valve
• SP PoolQuip 50mm One-Way Check Valve

Common search terms

PoolQuip valve, SP PoolQuip, Davey Spa-quip valve, SpaQuip valve, Spa-quip Full Flow, 40mm check valve non return valve, 40mm pool valve, 40mm spa valve, budget pool valve, spa diverter valve, pool plumbing valve, SpaPro valve, WWDG valve.