Guide to Mares regulators from 2000-2020

[rsingler]

50N spring is heavier. Went along with a new balance chamber, as I recall. With a higher spring constant in a reg that's made for 30N, I think your full to empty tank balance might shift over to being like a piston and fall with falling tank pressure. I've been really surprised how critical that little spring is when I've experimented with shimming.
I'll try to find bulletin in English.

 

[Zef]

50N spring is heavier. Went along with a new balance chamber, as I recall. With a higher spring constant in a reg that's made for 30N, I think your full to empty tank balance might shift over to being like a piston and fall with falling tank pressure. I've been really surprised how critical that little spring is when I've experimented with shimming.
I'll try to find bulletin in English.

I have it. Recently moved all my regulator files to an external hard drive because I was running out of space on my laptop's...I will fish out the hard drive and upload it here.

-Z

 

[lowwall]

50N spring is heavier. Went along with a new balance chamber, as I recall. With a higher spring constant in a reg that's made for 30N, I think your full to empty tank balance might shift over to being like a piston and fall with falling tank pressure. I've been really surprised how critical that little spring is when I've experimented with shimming.
I'll try to find bulletin in English.

Here's a screenshot. I'll put the PDF up later. (Edit - unless Zef beats me to it).

There's a separate Tech Bulletin for the 15X because they had to make a change to the body for the 50N parts to fit. They added a mark to the body to indicate it can be fitted with the 50N parts if desired.

 

[Zef]

Here's a screenshot. I'll put the PDF up later. (Edit - unless Zef beats me to it).

View attachment 891424

Attached is a PDF version that was translated from the Japanese version. I will see if I have or can find an original English version as well.

-Z

 

[Zef]

Here is a combined file of Tech Bulletin #38, #40, and #42-BIS....it is a little bit more comprehensive than the previous file posted.

-Z