Help with valve identification

[JimInFL]

I have searched and read several good posts here about this, but nothing answers my question, which is What kind of valve is this ??
1. The foot pump that came with my (yes, cheap) inflatable works great. (the yellpw hose in the pic)
2. This is a picture of all the adapters/guages etc I've tried in order to check pressure and alternative for inflation other than foot pump. NONE work except the pieced together kluge one you see there.
3. I can take the hose off the foot pump and use it with a Ryobi inflator for the high volume part, then top off with the foot pump.
I don't want to have to carry the foot pump on my bigger boat and I also can't seem to check the pressure with anything there. If I can get the Schrader adapter working, solves both my issues.
Is there something I'm missing ? Is this not halkey roberts ?

[User name]

They do look like Halkey Roberts, or copies of them.

Your adapter needs to have a little bridge piece inside in order to press on the centre stem of the valve if you want to get a proper pressure reading, otherwise the valve will still be closed when the adapter is attached.

The adapters often come with a few different thicknesses of seal to mix and match to get the best seal without loosing loads of air in the process.

If the Schrader adapter doesn't have a bridge inside it, you could just drill/screw a bolt in through the side and add a little sealer to perform the same function.

[JimInFL]

Originally Posted by User name

They do look like Halkey Roberts, or copies of them.

Your adapter needs to have a little bridge piece inside in order to press on the centre stem of the valve if you want to get a proper pressure reading, otherwise the valve will still be closed when the adapter is attached.

The adapters often come with a few different thicknesses of seal to mix and match to get the best seal without loosing loads of air in the process.

If the Schrader adapter doesn't have a bridge inside it, you could just drill/screw a bolt in through the side and add a little sealer to perform the same function.

Thanks Sir for the fast reply ! All do have the bridge. I even went so far as to take caliper measuements of the 'vital' dimensions you reference to assure the valve was being pressed. All do seem to seal well with little to no air leak. I can't for the life of me see what's missing.

The only thing I can think of, is that measuring that low of pressure (I'm looking for about 3.5 lbs.) maybe these gauges are not registering properly because I'm afraind to put much more air in, until I have some faith in what I'm seeing.

I CAN get that kluged up gauge to show me 2 lbs when I inflate to what I feel is 'quite firm'. Maybe I'm just being to conservative and should try more pressure.

BUT - I can press on the Shrader valve center and get NO release of air - that to me is the telling failure of something here.

[chipko]

Over the years we’ve had most success with this type of adapter which seems to fit many of the no name Halkey Roberts style valves found on Chinese sibs. The combination of washers and the adjustable screw central plunger accommodates numerous variations.

https://www.ribstore.co.uk/products/...wetline-zodiac

[JimInFL]

Originally Posted by chipko

Over the years we’ve had most success with this type of adapter which seems to fit many of the no name Halkey Roberts style valves found on Chinese sibs. The combination of washers and the adjustable screw central plunger accommodates numerous variations.

https://www.ribstore.co.uk/products/...wetline-zodiac

Since it says it ships to the US I'd give that a shot. Is there anything to get me from there to a Schrader without a lot of pain ?

[User name]

Originally Posted by JimInFL

Thanks Sir for the fast reply ! All do have the bridge. I even went so far as to take caliper measuements of the 'vital' dimensions you reference to assure the valve was being pressed. All do seem to seal well with little to no air leak. I can't for the life of me see what's missing.

The only thing I can think of, is that measuring that low of pressure (I'm looking for about 3.5 lbs.) maybe these gauges are not registering properly because I'm afraind to put much more air in, until I have some faith in what I'm seeing.

I CAN get that kluged up gauge to show me 2 lbs when I inflate to what I feel is 'quite firm'. Maybe I'm just being to conservative and should try more pressure.

BUT - I can press on the Shrader valve center and get NO release of air - that to me is the telling failure of something here.

Chipko's example above is a good valve, as it allows you to adjust the pin at the centre.

If you can press on the schrader valve pin and no air comes out then you know the bridge in the adapter isn't pressing on the valve. Does yours look like this inside?



If it does, then that bridge should press on the pin in the valve and it'll open like this. You could also thread a small screw into the centre of the bridge to lower the reach of it.


I'm not sure if your gauge is suitable or not, as most boats would be inflated to around 3.5PSI / 0.24BAR so you're probably not putting enough pressure in to register on a gauge that's rated for up to 15. Keep in mind that most of those foot pumps are not actually capable of over-pressuring your boat too.

[chipko]

Originally Posted by JimInFL

Since it says it ships to the US I'd give that a shot. Is there anything to get me from there to a Schrader without a lot of pain ?

Plenty of those adapters on eBay so may be able to source one locally.

Our Schrader adapter is like User Name’s one above which has the central bridge with a hole in, so easy enough to add a small screw for depth adjustment.

[JimInFL]

I'm not sure if your gauge is suitable or not, as most boats would be inflated to around 3.5PSI / 0.24BAR so you're probably not putting enough pressure in to register on a gauge that's rated for up to 15. Keep in mind that most of those foot pumps are not actually capable of over-pressuring your boat too.[/QUOTE]

You make a good point. I admit I'm being cowardly about inflation. I did just put a thick washer on the Airhead gauge to make it seal. Of course it won't latch now, but I can hold it on and see about 1.5 lbs on it. My kluge gauge shows me about 2 lbs.

I think I'm going to take a leap of faith and hit that foot pump a few more strokes and see what happens.

[JimInFL]

Originally Posted by chipko

Plenty of those adapters on eBay so may be able to source one locally.

Our Schrader adapter is like User Name’s one above which has the central bridge with a hole in, so easy enough to add a small screw for depth adjustment.

Yes sir - I've got a pack of 3 and can't get any of them to work. I'll try the screw, although just pushing them on seems to open it.