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[DrAndyB]

Hi,

Just been to Nigel Langs and A/C now ICE COLD (Just ready for the winter  )

We replaced the High Pressure valve (courtesy of the much valued guide on here  ) as this I believed was why the pressure was lost since vac out and re-gas a few months ago (I even saw bubbles when cap undone)  NO leaks elsewhere when coupled to the A/C test kit.

It was noticed however that the Low Pressure valve (one by the bulkhead at back of engine bay on the top) did have a "small" bubble when all regas pipes removed. 

I am hoping that the valve cap maybe enough just to stop any small release (may have a chance as its on the Low Pressure side ?)

However, as a preemptive strike does anybody know the Part number for the Low Pressure valve ?

I believe it is a difference part to the HP Valve with the LP (Low Pressure) one more of a "Car Valve" arrangement with what appears the only bit to change the valve core in the middle ? (like on car Schrader valve).

Thanks in advance.
Andy.

P.S
Just done my first Omega glove box handle replacement - what a faff !!! (now enjoying working glovebox  )


 

[Andy B]

No idea of the part number, but it seems that it's the only one that the parts counter staff can usually find. Yes, it's just like a tyre/schrader valve. 

[Mr.OmegaMan]

Is there no part number for the Low Pressure valve then ?  It looks as if I'm in need of one I can see bubbles once the dust cap has been removed.. Ideally need a part number by Monday.

[biggriffin]

use a standard tyre valve core

[Mr.OmegaMan]

use a standard tyre valve core

These kind Link 

[05omegav6]

Aye, thems do

[DrAndyB]

Thanks all for help. 

[chrisgixer]

In the words of my ac guy "they are just Schrader valves"

[Andy B]

is the seal in a normal tyre schrader valve compatible with R134a & the oil? Just asking because the seal supplied with the other is a green Viton seal 

[DrAndyB]

Confused now 

According to http://www2.dupont.com/Refrigerants/en_US/assets/downloads/h45945_hfc134a_push.pdf Viton does not look the best replacement seal from table 6 when lists "Severely Unnaceptable change" when using HFC 134a !!

Fingers crossed !

[4x4]

http://www.ebay.co.uk/itm/R134A-AIRCON-GM-SCHRADER-VALVE-CORE-PACK-5-2673-/400198885451?pt=UK_Hand_Tools_Equipment&hash=item5d2db6604b

[Andy B]

Confused now 

According to http://www2.dupont.com/Refrigerants/en_US/assets/downloads/h45945_hfc134a_push.pdf Viton does not look the best replacement seal from table 6 when lists "Severely Unnaceptable change" when using HFC 134a !!

Fingers crossed !

Maybe it's not Viton then ..... just assumed it was. It's definitely green though 

[DrAndyB]

Maybe it's not Viton then ..... just assumed it was. It's definitely green though 

Yep green    Replaced mine yesterday and had good look before fitted 

[Mr.OmegaMan]

http://www.ebay.co.uk/itm/R134A-AIRCON-GM-SCHRADER-VALVE-CORE-PACK-5-2673-/400198885451?pt=UK_Hand_Tools_Equipment&hash=item5d2db6604b

Ideal, Ordered 

[DrAndyB]

  I have some now    (Just in case !)