Mk IV A Phoenix Terpenator

[GratefulOne]

2 Bolt clamps require 20 ft lbs of torque. The manufacturers state you should use a flexible gasket with them and specifically say no pure PTFE. People have been using them together for CLS but that is the official spec.

Make sure you note the difference specs calling for foot lbs vs inch lbs. Some clamps specs call for 20 to 55 inch lbs.

Check out envelope gaskets. PTFE covering a flexible core. These will seal better and will have less cold flow issues.

 

[justintime420]

I am using a craftsmen torque wrench set at 44in or 3.6 ft pounds of torque and I am still noticing metal shavings from the brass nuts against the steel bolts. Is this normal? I don't think i should always be seeing shavings like this.

 

[justintime420]

also first test run on our mkiv took 2 hours start to finish with 10 pounds of solvent recovered. Is this considered too long or the normal? sadly we have the disadvantages of 1 tr21 paired to a mt69, 1/4 inch lines except recovery and the liquid line going to the top of the mkiv these are both 3/8 hoses. dry ice on the 50# tank and ice water for the mt69 the mkiv is in a sous vide bath at 80. Also yes we will be upgrading hoses to 3/8 and to an ic69 SS coil shortly but just wanted to know if this is a normal time for our set up?

 

[Gray Wolf]

I am using a craftsmen torque wrench set at 44in or 3.6 ft pounds of torque and I am still noticing metal shavings from the brass nuts against the steel bolts. Is this normal? I don't think i should always be seeing shavings like this.

They should be Silicone Bronze bolts, not brass. Silicone Bronze has a higher tensile than the stainless itself, and is self lubricating, but do wear out and require regular replacement.

 

[Gray Wolf]

also first test run on our mkiv took 2 hours start to finish with 10 pounds of solvent recovered. Is this considered too long or the normal? sadly we have the disadvantages of 1 tr21 paired to a mt69, 1/4 inch lines except recovery and the liquid line going to the top of the mkiv these are both 3/8 hoses. dry ice on the 50# tank and ice water for the mt69 the mkiv is in a sous vide bath at 80. Also yes we will be upgrading hoses to 3/8 and to an ic69 SS coil shortly but just wanted to know if this is a normal time for our set up?

In the ball park for the single pump and restricted lines/heat exchanger.

 

[GratefulOne]

I am using a craftsmen torque wrench set at 44in or 3.6 ft pounds of torque and I am still noticing metal shavings from the brass nuts against the steel bolts. Is this normal? I don't think i should always be seeing shavings like this.

Justin -
These are new nuts or have they been torqued a bunch already?
What brand clamps are you using?
Are the nuts the same ones you received with clamps?

I wonder if some off brands are shipping with brass instead of silicone bronze.

Has anyone noticed a difference with clamps from different sources?

 

[Gray Wolf]

Justin -
These are new nuts or have they been torqued a bunch already?
What brand clamps are you using?
Are the nuts the same ones you received with clamps?

I wonder if some off brands are shipping with brass instead of silicone bronze.

Has anyone noticed a difference with clamps from different sources?

I noticed my last order for Glacier was brass and the bolts fit the clamps poorly.

 

[justintime420]

Thank you gray wolf ! Can't wait to open up these lines and let it flow. Before spending 200 per 3/8 hose does anyone have a better alternative for ss sae hoses? Grateful one they are brand new bolts clamps etc. received the nuts with the clamps from glacier. Will steel nuts be a better alternative?

 

[GratefulOne]

If you are using stainless bolts the nut needs to not gall. That is why the bronze works well. Maybe replace the bolts with a treated steel that won't rust (as bad) and will not gall.

 

[stoney917]

I came to the conclusion a long time ago don't try to save a few bucks when it comes to ur system.... buy the hoses they are needed...

 

[justintime420]

Thank you everyone as always. I'm just going to change out all the nuts for new silicone bronze and keep replacing as needed. Also Stoney I am buying the hoses just looking for alternative pricing options and in the meantime I will re read a few forums that touched on the subject.

 

[Gray Wolf]

Thank you gray wolf ! Can't wait to open up these lines and let it flow. Before spending 200 per 3/8 hose does anyone have a better alternative for ss sae hoses? Grateful one they are brand new bolts clamps etc. received the nuts with the clamps from glacier. Will steel nuts be a better alternative?

Si Bronze is a very good choice for the application, which is strong, self lubricating, and doesn't gall with stainless.

You could use a Carbon steel bolt and a thread lubricant. If you use the thread lubricant, your torque values won't work.

 

[GratefulOne]

Yellow Zinc (Zinc Dichromate) is a nice coating for steel bolts. It helps a ton to prevent rust etc. Cadmium Dichromate is an older coating that does the same thing. Zinc Dichromate has mostly replaced the Cadmium Dichromate at this point.

 

[BrainChild]

Justin -
These are new nuts or have they been torqued a bunch already?
What brand clamps are you using?
Are the nuts the same ones you received with clamps?

I wonder if some off brands are shipping with brass instead of silicone bronze.

Has anyone noticed a difference with clamps from different sources?

There's definitely a difference in my Dixon versus glacier tank sourced clamps. My 6" Dixon clamps I got from austenitex feel more heavy duty, they fit tightly around the ferule and have bronze nuts. The glacier tank clamps fit more loosely on the ferule before being torqued down and came with POS brass nuts, I got some bronze replacements from fastenal.

Also, I got all my Envelope Gaskets in, PTFE w/ FKM Filler. They are fucking awesome! The plop right into ferule, and have that squish to them so they seal super easy. Rubber fab said these can be used with single or double bolt clamps depending on the situation, and recommend 50 inch pounds torque. I think I will give some heavy duty single pin clamps a try at my 1.5" connections.

 

[justintime420]

okie dokie have a new issue for me and an old issue for others. I found oil residues on the lines going to the cpstr21 cleaned with alcohol and q tips but im sure there is oil in my pump now. I just do not understand how this happened since yesterday we ran the water bath at 90 and still didnt pick up oil for the first clean out run. Today we ran 80 degree bath and got a little bit sucked up and i tried feathering the dump. The mkiv we have only has 5-6 inch down tubes on a 10x12 with a 2 inch shatter platter below so its basically 10x14. I remember reading the cps tr21 forum and seeing everyone extending down tubes, but what is the best way? and importantly is there any info on taking apart the tr21 and cleaning it to prevent an entire rebuild? Or should I just turn off the pump when i dump?

and beyond all of this why would terpp extractors send us a unit with only a 5-6 inch down tube? on a 10x12? makes sense for mkiii but this is an mkiv

 

[justintime420]

forgot to mention when I did the final dump I also injected 5 pounds with the bi flow through the top right after dumping before allowing it to recover to -10 hg could the dump and flood in unison be too much solvent which would cause it to get sucked up. I have also never seen the liquid reach past a quarter of the collection spool

 

[Og flowers]

What type of recovery pumps do you recommend is the best

 

[Og flowers]

looking for best recovery pumps

looking for best recovery pumps

What is everyone using for recovery

 

[justintime420]

Figured out I dumped too much. I quickly cleaned the lines and took apart the tr21 and cleaned it all out everything works perfect now.

Og flowers. Research more that's what I did. But starters are cpstrs21 the Haskel pump and cmep ol stainless. Dry ice passive works well too.

 

[justintime420]

Has anyone experienced 1-2 percent yields? Ran 3 columns with about 2 pounds. One run per day. Pre chilled solvent and injected 10 pounds(2 columns worth) bottom flood fashion. Then recover to -10. Then another 5 pounds bottom flood and recover to -10. Then we dump and recover to -10 and top flood another 5 pounds from the top flush then recover to -22. We get all solvent back but I just can't seem to figure out why the yield is so low. Same strain on a tamisium was getting at least 10% any help would be massively appreciated.