User avatar
Bryan
Plank Owner
Posts: 5279
Joined: Fri Jun 24, 2005 11:40 am
First Name: Bryan
Location: Wesley Chapel Florida
Contact: Website

A Must Read....Compressor 101

Sun Mar 16, 2014 10:09 am

Doing it right should include some common sense, not just blindly following specs and instructions. .Gary D, AWAP on SB

swimjim
Master Diver
Posts: 1694
Joined: Thu Mar 23, 2006 12:28 am
First Name: Jim
Location: Belgium WI

Re: A Must Read....Compressor 101

Sun Mar 16, 2014 10:49 am

Thanks for putting that up Bryan! I book marked that one.

Jim

User avatar
Vintagediver
Master Diver
Posts: 269
Joined: Mon Jul 11, 2005 7:28 pm
Location: Benzonia, Michigan

Re: A Must Read....Compressor 101

Sun Mar 16, 2014 1:14 pm

Ditto on that one Jim. Captain gave me a heads up on that same article and I made sure to bookmark it. Being new to owning my own compressor it makes for a great reference. Thanks Guys! Terry
The friendship of many has been inspired and created while together we've explored beneath the waves the wonders of God's creation.

NAVED Member #137
Member of The 2016, 2017 Sea Hunt Forever Dive Team

User avatar
SurfLung
Master Diver
Posts: 1763
Joined: Sat Jan 01, 2011 2:03 pm
First Name: Eben
Location: Alexandria, MN
Contact: Website

Re: A Must Read....Compressor 101

Thu Mar 27, 2014 10:28 am

- I've been reading up on RIX compressors and I believe what your article refers to as the PMV is called a "Back-Pressure Regulator" on the RIX system. The manual says it "will improve moisture separator efficiency and filter life as much as 450%". It talks about maintaining the Back-Pressure level when the tank pressure is lower... In other words when filling tanks directly from the compressor.
- But here's a question: If a compressor is hooked up to a cascade storage system, won't back pressure from the cascade storage accomplish the same thing as a Back Pressure Regulator or PMV?
- Additional to that, your article says some compressors don't have a PMV... Is it because they don't need one when connected to Cascade Storage?
SurfLung
The Freedom and Simplicity of Vintage Equipment and
Vintage Diving Technique are Why I Got Back Into Diving.

User avatar
captain
Plank Owner
Posts: 1440
Joined: Mon Jul 04, 2005 11:32 am
Location: LaPlace, LA

Re: A Must Read....Compressor 101

Thu Mar 27, 2014 12:33 pm

Somewhat but it would depends on what is the lowest pressure you let the bank get to before filling and that you do or don't equalize the bank before filling them all at once or fill cylinder by cylinder. If the lowest cylinder in the bank is 1000 psi and you are filling just it then it can't act as a high enough back pressure. By the same token if you equalize the bank to fill all cylinders at one time what will the equalization pressure be. If the equalized pressure is below 2000 psi again you won't have sufficient back pressure.

Now if you have a 4500 psi bank and never let the lowest cylinder get below 2000 psi you could do with out the pack pressure valve.
Captain

User avatar
temptress
New Member
Posts: 2
Joined: Thu Jul 24, 2014 12:44 am
First Name: Jenine
Location: Detroit MI
Contact: Website

Re: A Must Read....Compressor 101

Fri Jul 25, 2014 10:55 pm

The info provided in the link really helps, especially the diagrams. The site makes it lot easier to understand what components are used and how the system works. I haven't finished reading the whole thing yet, so I bookmarked it. Thumbs up for the share, man!
Retailer of top quality discount scuba gear and freediving equipment.

User avatar
Chris
Master Diver
Posts: 495
Joined: Thu Mar 28, 2013 1:44 am
First Name: Chris
Location: Coos Bay Oregon
Contact: Website

Re: A Must Read....Compressor 101

Mon Sep 22, 2014 3:22 am

I wish they explained the math a bit easier to understand for those of us that didn't do so well in algebra and are planning on setting up our own compressor and filter. but the diagram of the compressor setup is very useful.
Formerly tripplec. Decided to use my real name since you guys aren't a bunch of flaky internet trolls.

Return to “Compressor Talk”

Who is online

Users browsing this forum: No registered users and 3 guests