Vilter 440 compressor identification

[RANGER1]

Probably only a few people may be able to help identify Vilter 440 compressor.

Vilter AIIK 450XLB

Any idea what B stands & other numbers stand for?
Compressor on ammonia belt driven, only understand 450XL

Thanks

[AKI]

HI RANGER1,
What do you need about this comp.

[RANGER1]

HI RANGER1,
What do you need about this comp.

AKI,
Usually compressor or equipment manufacturer has a document explaining what all the letters & numbers mean.
I know what a Vilter 450 XL is, but do not know what AII or B stands for, that’s all.

[NH3LVR]

This nomenclature has always been a mystery to me as well. A Vilter Rep might know the answer.
Now you have me curious!

[RANGER1]

This nomenclature has always been a mystery to me as well. A Vilter Rep might know the answer.
Now you have me curious!

NH3LVR,
We have no Vilter rep, assume it means ammonia, belt driven.
Ypo would think they could designate unloader type etc, but I guess they use serial number of machine.
Not many of these in Australia, mostly 440 series.
If you know someone?

Thanks

[NH3LVR]

Do not have anyone to call now that I am retired.
Surprised you do not use Vilter there. Tough machines.

[RANGER1]

Do not have anyone to call now that I am retired.
Surprised you do not use Vilter there. Tough machines.

440 Vilters were made under license in Australia.
There is another 440 copy with two side covers.
Mycom & Sabroe predominantly on new installations.
Lot’s of older Vilters around, but getting less each year in my area.
Aftermarket prices cheap, but have had a few problems.

[NH3LVR]

I find the one with two side covers interesting. I think Vilter stopped making them like that in the Forties.
Made them easier to overhaul. The Company I worked for had a good knowledge of them and we did a lot of overhauls. One day to take an 8 cylinder apart, three to get everything cleaned up and rings installed, two to put it together. Run it for two hours and head for home.

[AKI]

NH3LVR , you to much older then mi,
If is VILTER such good company and made great compressors
Why VILTER bye from HOWDEN units for big compressor.
And not made by them.
And put name plate VILTER.

[NH3LVR]

NH3LVR , you to much older then mi,
If is VILTER such good company and made great compressors
Why VILTER bye from HOWDEN units for big compressor.
And not made by them.
And put name plate VILTER.
Cannot answer that. There are very few Vilter screws in my area. My experience is almost exclusively with the piston machines. That would be something you would have to ask Vilter. I have no insights into their business decisions.

[RANGER1]

ALI,
Vilter probably only had expertise in reciprocating compressor, so rebadge Howden.
Vilter have made their own mono screw for a number of years.
Frick used to make reciprocating compressor & Dunham Bush made screw compressors for them(I think it was that way).
FES have used everyone & with rebadged Mycom, Howden, GEA, probably Sullair?
Systems getting bigger, needing bigger compressors.
In the old days Vilter 16 cylinder could cover a lot of things, but small now, need to many.

[RANGER1]

I find the one with two side covers interesting. I think Vilter stopped making them like that in the Forties.
Made them easier to overhaul. The Company I worked for had a good knowledge of them and we did a lot of overhauls. One day to take an 8 cylinder apart, three to get everything cleaned up and rings installed, two to put it together. Run it for two hours and head for home.

NH3LVR,
The 2 sidecover machine, or copy of a Vilter is called a Budge, it has studs on all covers which is painful to work on.
It is pretty close to Vilter, few minor differences.
The Vilter made in Australia was pretty close, to American, but does not have roll pins in cylinder liners locating discharge valve assembly. It is located by machining in casing. Probably stopped making them 35 odd years ago.
Anything sound similar to 1930 Vilter?

[NH3LVR]

Has been a LONG time since I worked on old style Vilter. I do not remember what the differences were now.
Looked up the Budge machines. Enjoyed looking at the pictures!
Piston machines are still nice to have. I used to maintain a Cold Storage in Alaska and the load was light in the Winter. Instead of running the screws we used a 12 Cylinder Vilter two stage. Worked very well and economically, rather than running a screw booster and high stage. Sounded nice two. Of course I started working on two cylinder VSA machines!

[RANGER1]

2 cylinder VSA machine, will have to look up.
reciprocating compressors are having a bit of a comeback due to efficiency, Smaller low charge ammonia plants, hot gas defrost on bigger plants etc.

[AKI]

RANGER1,
I go to site like you sad on Dunham Bush and I did not find any production on ammonia screw comp.
Just semi hermetic screw for *****.

[RANGER1]

RANGER1,
I go to site like you sad on Dunham Bush and I did not find any production on ammonia screw comp.
Just semi hermetic screw for *****.

Maybe Hartford compressors made for Dunham Bush & Frick.
All I know is same compressor, Dunham Bush nameplate, Frick same compressor same nameplate.
Not many left in Australia.
https://www.dbamericas.com/pdf/hartford/LSC_downloads/LSC.pdf

https://www.dbamericas.com/hartford_compressors.php

[NH3LVR]

VSA=Vertical Single acting.
Not that many left running now. Expensive to fix and require different skills to repair.
15764

[RANGER1]

Okay, got a few on pump out compressor. Very good to empty a condenser & discharge quickly.
Werner, Frick, Bell to name a few.

[RANGER1]

VSA=Vertical Single acting.
Not that many left running now. Expensive to fix and require different skills to repair.
15764

NH3LVR,
Any chance you would have information on operating manifold for start up, or reverse flow for pumping out condenser?

[NH3LVR]

RANGER!
I looked on my bookshelf and could not find the info I thought I had. Unfortunately my old employer closed down and so I have no access to the stock of manuals he had.
It is really not difficult. You can easily determine the valve position to operate just looking at the manifold.
To pump out condenser just reverse the position of all four valves. I like to keep the pressure on the low side as low as possible when doing this. Packing glands or seals can leak. I found this picture on the 19th page of http://www.centralice.com/wp-content/uploads/2017/04/York-6x6-7x7-8x8-9x9-10x10.pdf.
15798

[RANGER1]

Thanks NH3LVR,
May never run this machine, but great pumpout machines for condensers & discharge lines back into lowside.
Should be more of them.