Best Reference for Double Hose Regulator Repair?

[fishb0y]

I'm pretty excited, I've got a Mistral that is on the way. I tell ya, if my wife finds out what I'm doing, not only will she go after me, but Turtleguy and Justleeza should watch their backs
Are there any on-line manuals that I could look at for repair, besides what is on this site? Also, with a reg without a hookah port, where would you check the intermediate pressure?

Actually, that is more likely a dumb question, because there is no intermediate pressure on a single stage reg. Did I just answer my own question?

[Bryan]

You really should do yourself a favor and talk to Roger before you post anything else....

[21]

["fishb0y"]I'm pretty excited, I've got a Mistral that is on the way...

Are there any on-line manuals that I could look at for repair, besides what is on this site? Also, with a reg without a hookah port, where would you check the intermediate pressure?

Actually, that is more likely a dumb question, because there is no intermediate pressure on a single stage reg. Did I just answer my own question?]

__________________________________________________________
As a recent occupant who screwed around in the Whitehouse often said "I feel your pain..."

To para phrase "I feel your excitement!"

Good for you! Your very first single stage double hose regulator. An event you will recall forever and a regulator you will probably own forever.

The Mistral is a very simple regulator; all most bullet proof and should last a life time if maintained. There are very few moving parts to the Mistral therefore about the only part subject to wear is the HP seat, which I currently have the only remaining supply. (if you need one let me know--I also have USN mouth pieces and Hoses and a variety of other items that might be useful)

I am not a big fan of ring clamps but one might be a good investment for you for this regulator. Bryan has reproduced Ring Clamps for sale at a very reasonable price.

Should you want your regulator overhauled there is only one vivable option, which is Bryan of Vintage Double Hose. He totally disassembles the unit, cleans it, replaces worn componets ( so long as currently avaliable) takes pictures of the procedure, returns the repaired regulator along with all the worn parts that have been repaced and a CD of the O &R that he perfored. All this at a very competitive price...

Or... you can send it to others who have little or no profesional training, no replacement parts, and are certainly not profesional corporations with all responsibilites that are attendant to being "PROFESSIONAL." Your regulator will be "overhauled" by washing in a moutain stream, or boiling in a moonshiner's still, and with a coating petroleum preservative be declared "Overhauled." No returned replacement parts for none have been replaced, no CD of the overhaul for the Regulator has not been disassembled, but it will possibly have a strong odor of a combination of a bath room cleaners and the musty smell of a oil soaked garage.

Or... you can become Roger Miller's shadow. Roger has years of experience, with world class knowledge of double hose regulators and I am certain very busy at this time of the year, but I will bet not too busy to assisit you with your new pride and joy.

Welcome to the tribe...

21

Yes your question was a dumb question...

[Bryan]

Thank you for the kind words Sam they are much appreciated. Let me expand on my 1st statement. While you have such a wealth of knowledge like Roger and Lisa Miller close to you I would take full advantage of it! I have done lots of regulators for them and he knows his stuff. A Mistral is the perfect place to start if you want to do your own rebuilds.
I have the complete US Divers Repair Manual on CD and I have never found better overhaul procedures for the Mistral than those included in that manual.
I just updated the parts to the Mistral/Stream Air kit last night to include a couple of new items. Sam had HP seats available if you need them.

[Nemrod]

I think you will like the Mistral. As Sam mentioned, there is no IP. The single stage goes from tank pressure to ambient in one step. There is a venturi in the Mistral that is directed more or less down the breathing hose and unlike the DA or RAM you can hear a swoooosh, swoooosh sound every time you take a breath. Kind of neat. The Mistral shall not be used on a tank at pressure greater than 2200 (the outside limit 2400). Repeat after me, do not put your Mistral on a 3,000 PSI tank. It will most likely damage the seat and it won't breath worth a %%%% for that first 1,000 PSI anyways. The DA is fine at 3,000 and a RAM could care less but the Mistral is very ank pressure sensitive for lack of a better word. Even at 2,200 PSI it will breath stiffly for the first few hundred PSI and fromabout 1800 on down will get noticeably easier. I have sucked a steel 72 so dry with my Mistral that air went into it when I opened the valve!

I throw this in every now and then, do not, especially with a Mistral, be tempted to suck on the breathing port without hoses or cage valves or some sort of relief between it and your lungs. That is ful tank pressure behind that venturi. This could result in fatal circumstance. You probably would not put a modern first stage outlet in your mouth and turn the tank on, don't do it with a double hose either, for some reaosn it is awfully tempting when tuning one to just take a breath without a hose being to lazy to put the hose on---don't do it. Just general info there.
Nemrod

[duckbill]

The Mistral shall not be used on a tank at pressure greater than 2200 (the outside limit 2400). Repeat after me, do not put your Mistral on a 3,000 PSI tank. It will most likely damage the seat and it won't breath worth a %%%% for that first 1,000 PSI anyways.Nemrod

As a quick aside, James, I've seen you post these figures before. What is your take on a Mistral on a 72 with the 10% overfill at 2475 psi? Do you feel it causes undue damage to the seat?