replacement for Dart second stage diaphragm

[dsenloe]

Has anyone ever had to find a substitute diaphragm for a Dacor Dart second stage. I am rebuilding one that has near perfect chrome and rubber, with the exception of this fragile part. I think it was a design flaw that put too big of a stainless plate in the rubber, and they failed at the transition point. I am wondering what I can use as a substitute. I have tried the neoprene one from an olympic model, but it needs about 1/8 inch more rubber al the way around since the dart diaphragm was pierced for screws. I need something that is 3 1/8 inches in diameter. Any help is always appreciated Scott

 

[herman]

PM sent.

 

[james croft]

Herman, don't keep this info a secret. I have a Dart that is the first reg I ever breathed from that needs an overhaul. I think mine may need a second stage seat but I have not gotten into it yet. Do you know if any parts are available ?
I am not sure if I can resurface anything yet but I plan on working on it this winter.

 

[herman]

Not a secret really. I am just playing around with the idea of reproducing some diaphrams for some of the old single hose regs. At this time I don't have anything but will need an old diaphram for a model so I wanted the old one if Scott finds a replacement and intends to trash the old one.

 

[Scuba Cowboy]

Herman, I have several old single hose diaphragms and would be happy to share. PM me if you'd like them.

 

[herman]

Will do.

 

[simonbeans]

These diaphrams are the right diameter. PM if you are interested in one for your project.

 

[Hallmac]

have a look at the USD Conshelf XII - XXIV.

You also might have a look at page 27 of the 2009 Trident catalog.