Dacor 100 2nd stage? Unknown 1st stage

[Rich Keller]

The 2nd stage says Dacor but nothing about what model. The 1st stage has no markings at all. Any idea what they are? Are they worth fixing if parts can be found? They came with the tank pictured if that helps narrow down the time frame. Tank has been painted to the point that I can not see the year and I do not know during what years they made steel tanks with that type of bottom. The tank has a Voit J valve.

 

[Luis H]

It is a Dacor Olympic regulator. That is the low end diaphragm first stage, which I think it makes it an Olympic 200 (it could be the Olympic 100, but I think the 100 was the unbalanced piston). But then again, I could have them backwards (the 100 vs the 200).

They were around in the early 70's.

The second stage is very easy to service and other than an O-ring the only other required part is a hockey puck style soft seat.

Adjusting the second stage is very easy and it is done from the hose connection without any special tools. It can be done while the regulator is pressurized with the diaphragm and cover in place.

If I recall correctly, the first stage is an unbalanced diaphragm. The HP seat is probably not available, but it can probably be resurfaced if needed.

I don't remember much about the first stage, but the second stage is a nice one that was available in their top of the line Olympic 400 and 800 regulators.


I used to have a tank like that in the early 70's.

---------- Post Merged at 12:41 PM ---------- Previous Post was at 12:20 PM ----------

I just checked the 1969 catalog and confirmed that it is the Olympic 200

Here is a quote from the catalog:

DACOR OLYMPIC SINGLE HOSE REGULAtORS
A COMPLETE NEW LINE OF REGULATORS
UNEQUALLED IN EXCELLENCE
AND PERFORMANCE
Dacor's engineering staff, after 15 years experience in underwater
equipment research, has developed a complete new concept
in Single hose regulators. Feature for feature, these new
precision made instruments are far superior in performance to
any other breathing apparatus on the market today. Dacor's
Olympic line exceeds performance requirements of Military Specification
#MIL-R-24169A. Dacor's rigid standards for excellence
require regulators to be tested in fully instrumented facilities. Our
research program has subjected these regulators to extreme environmental
conditions and atmospheres that far exceed any
diving conditions, including heat, cold, corrosion, chemicals.
• Unique "Dual Exhaust" valve system (on Models 200, 400, 800)
offers 50% less exhalation resistance than single exhaust units.
Tests prove that exhalation is more tiring than inhalation. "Dual
Exhaust" valves also make it much easier to purge.
• Controlled Venturi for effortless intake at any depth.
• Comfort designed mouthpiece and chin rest to fit all face types.
• Exclusive design stainless steel seat carrier and lever permanently
lubricated for reduced friction and uniform air flow.
• Flush purge button.
• Free ,rotating hose swivel design permits easy rotation of
regulators.

OLYMPIC MODEL 100 49.95
A high performance regulator designed with economy in mind,
without sacrificing reliability.
• Large piston first stage.
• Teflon seat and back-up rings for corrosion resistance and
maximum sealing.
• High pressure port for underwater pressure gauge.
• Heavy brass chrome. nickel plated body, yoke and yoke screw.

OLYMPIC MODEL 200 69.50
This model features the revoiutionary "Dual Exhaust" valve system
and a machined first stage at a popular price.
• Specially designed first stage diaphragm for extremely fast
response.
• Teflon coated high pressure seat for dynamic corrosion resistance.
• Heavy chrome nickel plated body.
• Dual spring design eliminates vibration.
• High pressure port for underwater pressure gauge.

OLYMPIC MODELS 400 and 800
These are the ultimate in quality and performance. The finest
regulators on the market today. (check these features that make
them the best:
• Balanced first stage for absolute minimum breathing effort and
maximum air flow, regardless of tank pressuru.
• Modular high pressure reduction area permanently sealed at
the factory in a controlled dust-free atmosphere for maximum
regulator life. .
• Special double filtering system traps particles in the air down
to ten millionths of an inch and prevents these impurities
from contaminating the regulator.
• Stainless steel reduction nozzle assures extremely long wear.
• Dual spring design eliminates vibration .
• Ultra-fast responding diaphragm for maximum response.
• Unique "Dual Exhaust" valve system for minimum exhalation
resistance.
• High pressure port for underwater pressure gauge.
• Heavy forged navy brass body is chrome plate.
• Special conversion-this Model 400 can be converted to a
reserve valve unit by adding a modular reserve mechanism.
(Model MRV).
MODEL 800 has all the fine features of the Model 400 but also
includes the modular constant reserve system set at 300 P.S.I.
with all stainless steel moving parts.
OLYMPIC MODEL 400 - 80.00
OLYMPIC MODEL 800 - 100.00

 

[herman]

That is def a 200. There is a service/parts manual on VDH. The HP seat is the same ones used a a host of Dacor regs of that time period, the square one with the simple nylon (?) ring in it- it's very similar to the Mistral seat. You can easily resurface it or I know for certain there are several of us have NOS replacements. I am 90% sure a USD Conshelf diaphgram will work as well.

 

[regulator bj]

Pics might help.

 

[whaylonsmithers]

What a cool tank. It looks like a fire extinguisher on the bottom. What's the pressure rated at?

 

[Rich Keller]

What a cool tank. It looks like a fire extinguisher on the bottom. What's the pressure rated at?

That part of the tank I can read though most of the rest is painted over, 2250 PSI. Does anyone have experience with this type of tank? Will this be galvanized under all the paint?

---------- Post Merged at 08:35 AM ---------- Previous Post was at 08:32 AM ----------

Pics might help.View attachment 137671View attachment 137672

Yes the pics were a great help! Thanks