Crosswater Nova Cold Valve Cartridge (53CR581AD)

SUMMARY

Crosswater Nova Cold Valve Cartridge (53CR581AD)

The Crosswater Nova 53CR581AD is a cold-side ceramic disc valve cartridge, also known as a tap headwork, used in the Crosswater Nova NV422DC bath shower mixer. It sits beneath the cold-water control handle and regulates the flow of cold water into the mixer body, where the hot and cold supplies are combined.

The half-turn ceramic disc mechanism opens and shuts off the cold-water supply. Worn or obstructed ceramic discs can cause water to drip from the bath spout or shower handset when the mixer is turned off, or make the cold-water control stiff or difficult to operate. Replacing a faulty headwork can restore smooth operation and proper water shut-off.

Technical Details

- - Part Number: 53CR581AD

- - Product range: Nova

- - Part type: Cold-side ceramic disc valve cartridge / tap headwork

- - Function: Cold-water on/off flow control

- - Operating mechanism: Half-turn ceramic disc

- - Installation position: Right-hand cold-water control on the bath mixer

- - Parent fitting: Chrome bath shower mixer

Confirmed Compatible Models

- - Crosswater Nova NV422DC Bath Shower Mixer

Before Ordering

Check that your bath shower mixer is model NV422DC and compare the existing cartridge with the product photographs, paying particular attention to the spindle, fixing arrangement and sealing surfaces. This is the cold-side cartridge. Crosswater also lists a separate Nova hot valve cartridge under part number 53CR581AS, so check which side requires attention before ordering. Other products in the Nova range are not automatically suitable for this cartridge.

Fitting Advice

Isolate the hot and cold water supplies before dismantling the tap. Remove the handle cover cap, loosen the retaining grub screw using a 2.5 mm hexagon key and remove the handle. Remove the ribbed insert, then unscrew the headwork using a suitable spanner. Ensure that the gasket sealing surfaces are clean before fitting the replacement. Reassemble the control and check for leaks after restoring the water supply.

Troubleshooting

Symptom: Water continues dripping from the bath spout or shower handset when the mixer is turned off. Likely cause: Worn ceramic discs, debris inside the headwork or an imperfect seal. Solution: Inspect and clean the existing headwork and replace it if faulty.

Symptom: The cold-water handle becomes stiff or difficult to turn. Likely cause: Scale build-up or wear inside the cartridge. Solution: Inspect the cartridge and replace it if cleaning does not resolve the problem.

If you are unsure which spare you need, use our Di Vapor part identification service.

FAST DELIVERY

• Delivery of this item is priced as a 'small packet'. UK delivery costs £5.95 incl. VAT.
• For all in-stock spare parts the typical UK delivery timescale is 2-5 working days.
• If you need a part urgently then we can provide a next-day (delivered Mon-Fri) UK delivery service for all in-stock small parcels ordered before 3.00pm, Monday - Friday.
• Next day delivery is available to select at an additional charge during the checkout.
• We delivery WORLDWIDE. For more information about international deliveries, read our delivery page.

RETURNS

• If you need to return a part then please telephone Di Vapor on 0121 705 0866 with the reasons for the return within 14 days of receiving the goods.
• For more information please see our terms and conditions.