Neptune Kitchen Tap Valve
Brass Valve with ceramic discs :without thread.
Here are the measurements of the 3963R Valve:
Overall Height: 50mm
Diameter at thread: 21mm
Nut Height: 7mm
Height of Splines: 8mm
To Remove the Neptune Tap valve (3963R) you will need a common 17 hex key.
***Please Note: CO = Clockwise to Open a Valve. ACO = Anti-clockwise to open a Valve. If your Hot water side is dripping in your Neptune Tap, order a Cold ACO valve. If your Cold side is dripping in your Neptune Tap, order a Hot CO Valve. Here is the reason : It might seem counter intuitive but Valves are not ‘hot’ or ‘cold’ they just open ‘clockwise (CO)’ or ‘anti-clockwise (ACO)’. Some manufacturers give a different code for each valve in a tap, but San Marco uses the Same Code for the valve and to differentiate between what way it opens e.g. Clockwise, they put a nick on the side of the nut, and for Anti-clockwise there is NO nick on the side of the nut (as in the San Marco 3561R Valve which has white indicators underneath). However, the Valve that is used in the Neptune Tap also has a red indicator underneath for the valve that opens Clockwise and a blue indicator underneath for the Valve that opens Anti-clockwise. In most standard two lever kitchen taps you pull the levers towards you to turn the water ON and push the levers back to turn the water OFF. So, in a standard two lever kitchen tap, when you pull the cold lever towards you to turn the water ON you are effectively turning the Valve Anti-clockwise to open it. If you pull the Hot lever towards you to turn the Hot water ON, you are turning the Valve Clockwise to open. In the Neptune Tap, the levers are operated the opposite way and as a result, in the Neptune Tap, to turn on the Cold Water you have to open the Valve Clockwise ie a ‘hot’ valve is in the Cold Water side of your tap. If you removed the Valve underneath the Cold side of your Neptune Tap you might be surprised to find that it has a red indicator underneath (e.g. a Clockwise ‘hot’ valve, and if you removed the Valve from the Hot water side of your Neptune Tap you might be surprised to find that the Valve has a Blue indicator underneath. All you have to remember is that if your Hot water side is dripping you need to order a Valve that turns Anti-clockwise, so please order a ‘cold’ valve. If your Cold water side of your Neptune Tap is dripping, then you need to order a Valve that opens ‘Clockwise’ so please order a ‘Hot Valve.’ ***
All our Spare Parts are Genuine Spare Parts sourced directly from the manufacturer of your Product.
Parts might be modified by the manufacturers as part of their continual improvements.
Parts might be modified by the manufacturers as part of their continual improvements.We cannot always guarantee that a part will fit an older version of a product. All spare parts that do not fit can be returned for a refund excluding shipping costs.
Shipping Information (in Brief - see links below for more detailed information).
Spares Parts: Minimum of £4.50 Royal Mail First Class 3-5 days to Maximum £6.00 Parcel Force Track & Trace , Signature Required, 2 - 3 days after dispatch day. Click here for more information about all Shipping here.
Please note that these shipping times apply to Mainland UK Only. Please refer to our Shipping / Returns section for other destinations.