Rapid peril

[MrGreengrass]

At weekend my q\f unit exploded in my hand destroying my stock.
I was shot with the bolt head and stock inlet finisher.
New Mk1 in a MFRstock.....only bought it a month back.
My hand is still numb a bit.
Just screwing a new bottle on.
At the point where the pressure nips up i got a .....that doesnt feel right,bang eyes shut and throb all at once..really quick.
The unit was constructed too weakly by being threaded too far internally.
It blew the head off and left the threads in the hole
Apparently only 6 of these were made....and others sheared off on assembly.
Note to self...no MK1 anything ever again.
The only difference was a 230 fill. as opposed to the normal 200.
It had been on the gun 2 years.
So if your Q\f is the early flat topped unit ...get it out.

T





Sent a new one out ......now i need another stock ..... it really makes you jump.

[Murphy]

A Theoben one or one made by somebody else ??

[MrGreengrass]

A Theoben one or one made by somebody else ??

The Bestfittings kit....spoken to them...apparently they should have all been recalled.

[martyntin]

The Bestfittings kit....spoken to them...apparently they should have all been recalled.

Shouldnt they compensate you with a new stock if it was a manufacturing fault

[MrGreengrass]

I hope they do .....i've had to nick one off my sons for this week.
A bit wary now...but, it will go in time....and all will be forgiven.

[flag 5]

Well I'm very pleased you didn't loose your fingers ! and that was a very nice looking stock. These are the photos that will haunt the internet for years to come.

ATB
Jack

[bigyin]

that is frightning mate , it could off been much worse but i think a new stock is the least they can do

[kevG]

thats why threading needs to be done spot on were high pressure air is involved.you were very lucky .just looking at the pic it looks more to do with hole in the centre(far to large) and not leaving anough meat on the wall

kevG

[ratsplatter]

From Richard Bingham, MD BEST Fittings.

Please may I start by saying that we are extremely sorry that someone has suffered loss due to the apparent failure of one of our products.

We always try and resolve any issues as swiftly as possible, and strive to see our customers completetly satisfied.

During my telephone conversation with MrGreengrass on Tuesday 29 Nov, I did ask what action he would like us to take. The subject of a replacement stock was briefly discussed, but as it was a second hand unit and no price was forthcoming we were unable to come to a conclusion. As no pictures were available at the time for us to view, we asked that the stock be forwarded to us so that we could inspect it. We were informed that it was no longer available, but that pictures would be sent.

To date we have not received any pictures, neither have we received any follow up calls requesting any further action, so have been unable to offer any.

The pictures posted on this thread are the first that we have seen, so please do not jump to the conclusion that we are indifferent to the situation.




As for the valve in question:

Please see http://d.pr/vAK0 for reference.

Responding to requests from customers, BEST Fittings produced a small quantity of 1/4"BSP valves towards the end of 2009.

They were hydraulically tested to 400BAR at design stage without any failures.

However, on installation into a gun, it was possible to create a crack in the fitting beneath the head if overtightened. This was discovered when a customer sheared the head clean off when installing one. He admitted that he had been a little heavy handed, but it was in fact for the good as we were alerted to a potential problem.

On further testing, the design was revised and a different fitting used as a valve carrier.

All of the early type valves that were traceable were recalled and replaced as far as we were able to tell.

Please have another look at the picture if concerned about one that you may have purchased from us. If you return it to us, we will happily replace it free of charge for one of the revised design.


If there is anything more that we could have done, we would have done it.


Trusting that we can continue to serve you.. and if MrGreengrass would like to get back in touch with us to discuss the matter further, we would be only too pleased to resolve it.

[kevG]

good call richard,nice to see a good responce
kevG

[gibboj]

iv have always found richard very helpfull and polite and i am sure he will be on the case to the supplier of the faulty part, and do the right thing to keep his excellent record going at best fittings

atb john

[DM80]

scary but for the stock taking most of the impact it could of been a lot worse, high pressure is a dangerous thing.

Dave.

[Elliott]

C'mon Mr Geengrass we all want to know what you're going to do! ...

ATB

[angrybear]

I notice looking at both the best fittings pictures & the failed item that the one which failed did so in a different place, (top of the thread) sugesting that overtightening was to blame.

I must therefore ask do these items come with a recomended tightening torque figure?? if not then who knows how many others could have been stressed to a dangerous level !

phrase's like "finger tight" or "nip up" invite disaster from the heavy handed.

[Verminator 66]

I notice looking at both the best fittings pictures & the failed item that the one which failed did so in a different place, (top of the thread) sugesting that overtightening was to blame.

I must therefore ask do these items come with a recomended tightening torque figure?? if not the who knows how many others could have been stressed to a dangerous level !

phrase's like "finger tight" or "nip up" invite disaster from the heavy handed.

yes got one hell of a point there
the douty washer will be no good on mine it I done them to tight
I just nip them up

but still Greengrass you were bloody lucky
I normally have ny gun between my legs when I put a new bottle on

NEVER EVER AGAIN