Description

Genuine SMR Mini Tap Valve – Information

• Some installation guides will list this valve with letters SP at the start or letter R at the end.  That change in letters is merely a change in internal suplier stock systems and not a change in the valve itself. It is the number part of the code that is the important part.
• This is the genuine SMR mini valve and will be stamped SMR. We explain below the difference between a Genuine Valve (you are buying here) and a Compatible Valve that is available to buy from other online suppliers.
• The SMR Mini Tap Valve 3794R (aka SP3794) is a 28 splined valve with a six sided nut.  This was preceded by a similar 28 splined valve with a flat sided nut, 3308R (aka SP3308).  Either will fit in your tap if you have the SMR Mini Valve to begin with but as we stock both, you can replace like for like.
• The Hot and Cold Valve are not interchangeable as one opens clockwise and the other opens anti-clockwise.
• There are other similar looking mini valves in taps, but are not the same as this valve here.  If your own ‘mini’ valve is NOT stamped SMR / 28 splines, do not buy this valve here.  

SMR Mini valve 3794R and SMR 3308R – What’s the difference ?

• You have two different valve options to choose from here.
• Both have the same key measurements and both have been used interchangeably over the years in your own Tap.

The Later SMR Mini valve 3794R (aka SP3794) with six sided nut.

• Measurements 3794R: Height: 38mm Diameter at thread: 20mm, Splines: 28, Nut Height: 5mm
• A six sided hex key usually is sufficient to remove / fit this valve.
• Some Tap models where the valve is so far inside the tap body (counter sunk) it can necessitate using a special tool to access the valve.  You might need a 14mm socket and a ratchet.

SMR Mini Valve 3794R Pair

FAQ:

• Is this a genuine SMR part ? Yes.
• I have no idea which SMR mini valve is in my tap ?  Generally speaking, the valve changed from 3308R (SP3308) to 3794R (SP3794) c. 2013.  That should give you some idea if you know when you purchased your own Tap.  They are interchangeable in any case but there are just some different tools that might be needed depending on which one you have in your tap / which one you buy. See above.
• What size allen key will I need to loosen Handle grub screw?  Depending on your own Tap model you will need either a 2mm allen key which you can buy here  or a 2.5mm allen key you can buy here.  Please don’t guess the grub screw.  If you round off the grub screw you might not be able to remove it.
• Do your Valves come with the white plastic handle insert ? No.  Depending on the Tap model this part can be either the 3530R or the 3537R.  You will only need to replace this if your own is damaged e.g. slipping on the valve (it has grooves inside it that grip the splines on the valve).  The white handle insert part is the same size in either code 3530R or 3537R. The KEY difference between these two codes is the size of the brass screw. If you need a new brass screw (which comes with the Tap Handle Insert Part contact us with your own Tap details for advice as to which white handle insert code to buy.
• If your Tap is dripping where the Spout meets the Base you might need to replace your O Ring Kit.

Tap Handle Insert & Screw SP3530 3530R

3537R Handle Insert

DIY Guides

• Here is our Guide:  How to remove the Handle on your Kitchen Tap.
• Here is our Guide if required : Changing the SMR Mini Valve.
•  How to diagnose cause of dripping Tap : My Kitchen Tap is dripping 
• Our Helpful Tips section : Find here.

This is a Genuine Spare Part you are buying here.

Difference between Genuine and Compatible ?