Jump to content
Theviking

Homemade Pressure Tester

Recommended Posts

Theviking

I've been putting this together over the last few weeks. From parts picked up of eBay.

Water filter housing ~£10. To hold the watch and high pressure air

A screw plug ~£2. To block the air outlet

Screw in Schrader valve ~£2.  To attach a bike pump to insert the air

Screw adaptor ~£3. To attach the valve to the housing

PTFE tape/grease/araldite. To seal the gaps between the parts.

 20190727-183523.jpg

It took a few tries to get the thing airtight, you could hear the air escaping and the pressure drop.

Greased the watch seals and crown screw thread. Put it in the housing, pumped it to 6atm left it for 10 min, pressed the escape valve (on top of the housing) and placed the watch into a bowl of water.

No bubbles come out of the housing and it's good for swimming.

20190727-183823.jpg

 

20190727-183746.jpg

 

 

Share this post


Link to post
Share on other sites
BadApple

Mmmm - after reading this I hunted in the kitchen and found something that resembled this. I tried it out on one of my watches and turned on the switch.

You owe me an ARF Sea Dweller. 

Share this post


Link to post
Share on other sites
Cap'n

:D

Share this post


Link to post
Share on other sites
Theviking
24 minutes ago, Badapple said:

Mmmm - after reading this I hunted in the kitchen and found something that resembled this. I tried it out on one of my watches and turned on the switch.

You owe me an ARF Sea Dweller. 

Mate that's the secret to vintage reps, just ask @NCRich

Share this post


Link to post
Share on other sites
stfrance
45 minutes ago, Badapple said:

You owe me an ARF Sea Dweller. 

:rofl:

Share this post


Link to post
Share on other sites
GingerApple
1 hour ago, Theviking said:

Put it in the housing, pumped it to 6atm left it for 10 min, pressed the escape valve (on top of the housing) and placed the watch into a bowl of water.

I'm no scientist. I'm also incredibly stupid. It's entirely possible/probable that I've totally misunderstood this. However if I've understood correctly, let's say the watch had a massive leak, a big hole effectually, would the air not equalise immediately upon being taken out of the chamber, and when you then put it in the water, the water would flood straight into the watch?

Share this post


Link to post
Share on other sites
brang1
27 minutes ago, TheFreckledTampon said:

I'm no scientist. I'm also incredibly stupid. It's entirely possible/probable that I've totally misunderstood this. However if I've understood correctly, let's say the watch had a massive leak, a big hole effectually, would the air not equalise immediately upon being taken out of the chamber, and when you then put it in the water, the water would flood straight into the watch?

yes, yes yes and yes

Share this post


Link to post
Share on other sites
Junior88
36 minutes ago, TheFreckledTampon said:

I'm no scientist. I'm also incredibly stupid. 

We now have this in writing. Thank you. 

:rofl:

Share this post


Link to post
Share on other sites
GingerApple
9 minutes ago, brang1 said:

yes, yes yes and yes

Surely that should at least be, 'yes, yes, no and yes'?

Share this post


Link to post
Share on other sites
deju

Tune in next week kids, @Theviking will be showing us how to build Tracey island only using items in that cupboard in the kitchen that only your missus knows what they are for. 

Share this post


Link to post
Share on other sites
Jibuti

Image result for macgyver gif

Share this post


Link to post
Share on other sites
BADBILLY
1 hour ago, deju said:

Tune in next week kids, @Theviking will be showing us how to build Tracey island only using items in that cupboard in the kitchen that only your missus knows what they are for. 

https://www.instructables.com/id/How-to-actually-make-Tracy-Island-and-finish-it-t/

Image result for tracy island gifs

Share this post


Link to post
Share on other sites
Theviking
3 hours ago, TheFreckledTampon said:

I'm no scientist. I'm also incredibly stupid. It's entirely possible/probable that I've totally misunderstood this. However if I've understood correctly, let's say the watch had a massive leak, a big hole effectually, would the air not equalise immediately upon being taken out of the chamber, and when you then put it in the water, the water would flood straight into the watch?

Yes, but the gap would have to be massive for it to de-pressurise the watch without it hissing as you take it out of the housing.

You have to remember, all automatic watches are built so not to let dust in, less it gunks up the movement.

It doesn't take much to make a watch IP 53 which you need to keep the movement dust free.

Build at you own risk or just never wear your diver rep in the pool.

Share this post


Link to post
Share on other sites
GingerApple
1 hour ago, Theviking said:

Build at you own risk or just never wear your diver rep in the pool.

Or use my Bergeon to test them to ten bar?

Share this post


Link to post
Share on other sites
Theviking
5 minutes ago, TheFreckledTampon said:

Or use my Bergeon to test them to ten bar?

The housing is rated to 12 bar and with a 50% safety rating this could go up to 18, but pumping the bike pump past 6 bar is an arse, but 6 is fine for swimming to the bottom of the pool.

Which reps did you actually buy instead of dropping £1k on a Bergeon 5555/10 ?

Share this post


Link to post
Share on other sites
BenjaminButton

I test all my watches by diving into a pond and swimming round in circles for a couple of kilometres. So far so good. Life’s way too short to give a damn about my man jewelleries ability to survive a dip.

Share this post


Link to post
Share on other sites
forevernoob

Wow, what an ingenious idea. Way to McGuyver it. I'm inspired to try the same!

Share this post


Link to post
Share on other sites
Theviking

You could also build a wire watch stand, place it in the housing half fill with water, pressurise, wait, tip the housing over, watch in water, de-pressurise. To mimic the Bergeon test.

Share this post


Link to post
Share on other sites
Glaude
10 hours ago, Theviking said:

Screw in Schrader valve

Résultat de recherche d'images pour "hank schrader"

Share this post


Link to post
Share on other sites
The_Proctometrist

Looks like the one I made recently only smaller,  however, I use mine to distill gin...

Share this post


Link to post
Share on other sites
Theviking
8 hours ago, mmjmmj said:

Looks like the one I made recently only smaller,  however, I use mine to distill gin...

Pics please

Share this post


Link to post
Share on other sites
GingerApple
13 hours ago, Theviking said:

Which reps did you actually buy instead of dropping £1k on a Bergeon 5555/10 ?

Lol, I'm only joking. My pressure tester has a coffee addiction and an unusual, almost indecipherable accent!

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×