Register now to get rid of these ads!

Hot Rods Caution air hose..

Discussion in 'The Hokey Ass Message Board' started by Hollywood-East, Aug 8, 2019.

Tags:
  1. 1-SHOT
    Joined: Sep 23, 2014
    Posts: 2,006

    1-SHOT
    ALLIANCE MEMBER

    The black spots in paint jobs is the inside of the hose breaking down. That's why you don't drive over them.
     
    Spoggie, Bandit Billy and Sporty45 like this.
  2. s55mercury66
    Joined: Jul 6, 2009
    Posts: 3,980

    s55mercury66
    Member
    from SW Wyoming

    Small safety cables are available, and OSHA required in a lot of places. We always called them "Whip Checks" in the well drilling industry.
     
    Stogy likes this.
  3. Sporty45
    Joined: Jun 1, 2015
    Posts: 871

    Sporty45
    Member
    from NH Boonies

    I have a few different air hoses. One is just for paint and treated accordingly. The others are for the air tools, and those don't always get treated so great, being dragged around the floor and such, but hold up pretty good. Never bought cheapo Harbor fright hoses, but never bought top grade ones either. Just a better quality hose. Couldn't tell ya what brand, it has been quite a while since I bought any hoses
     
    Stogy likes this.
  4. ekimneirbo
    Joined: Apr 29, 2017
    Posts: 1,619

    ekimneirbo
    Member
    from Brooks Ky

    Go to Parker (or probably any major hose fitting supplier) and buy some hose that uses push fittings instead of crimp fittings. It s kinda expensive, but it will pay for itself in the long run. I have never had a failure. If you should get a leak (I never have), just cut the end off and stick the fitting back in place. No more trying to fix a hose on the weekend with a screw tightening hose clamp. You never have to throw the hose away. Its worth the extra cost. If you buy a longer length and a couple of extra fittings, you can cut a few feet off for a special need and stick the pushin fittings back in place and its just like new. I won't buy anything else.
    Another thing is I never leave a compressor turned on. If you get a leak it can make the compressor run continuously and ruin the compressor. I have a light hooked to my compressor with a red bulb in it. When the compressor is on, the light is on. If I forget to turn the compressor off, I'll see the light. The light should be on the outside of the building so you see it if you look out your house window.
     
    Last edited: Aug 8, 2019
    31Vicky with a hemi and Stogy like this.
  5. Jalopy Joker
    Joined: Sep 3, 2006
    Posts: 25,516

    Jalopy Joker
    Member

    wonder how many have air lines around shop plumbed with PVC landscape irrigation pipe
     
    49ratfink, alanp561 and Stogy like this.
  6. I thought that was a givin… I do the same also. NEVER drop the hose end on the ground, I have always either hung it on the tool car,t end of bench or what have you.. Besides sucking ass to bend over time and time again to retrieve it, Also a time saver in a shop environment.

    5. NEVER buy the cheap couplers also, I always buy Milton.
     
  7. ekimneirbo
    Joined: Apr 29, 2017
    Posts: 1,619

    ekimneirbo
    Member
    from Brooks Ky

    I have 4 80 gallon compressors in different buildings and they all have some or all of the transport lines plumbed with schedule 80 PVC pipe. One is 30 or so years old. Never had any problems. It allows me to use larger lines with less friction and more volume. That helps a lot when you have to move the air a good way before entering a hose.
     
    Boneyard51 likes this.
  8. Bandit Billy
    Joined: Sep 16, 2014
    Posts: 7,034

    Bandit Billy
    ALLIANCE MEMBER

    It's also why you paint cars black. :cool:
     
    31Vicky with a hemi likes this.
  9. Boneyard51
    Joined: Dec 10, 2017
    Posts: 4,641

    Boneyard51
    Member

    When I outfited my new shop I made a dryer out of 2 inch PVC pipe, with working pressure of 250 psi, if I remember right. Made four ups and downs with drains at the bottom of each down. Worked good for a couple years. Then one day I walked into the tool/ compressor room, as I noticed my compressor was running. There was pvc all over the place! That system blew all apart, stuck shards of pvc in the wall, bent up some hub caps I had stored in there! Must have been a hell of a blast, luckily it happened at night when I was home. Just my experiences.







    Bones
     

  10. This is why one doesn't use PVC for air lines... BOOM !

    Also you don't shut your compressor off at nights/weekends?
    Just in case a line blows and your pump don't run all night or weekend long !
     
    Stogy and Boneyard51 like this.
  11. Boneyard51
    Joined: Dec 10, 2017
    Posts: 4,641

    Boneyard51
    Member

    Now you tell me!!! Lol..... I had seen pvc air lines all over for years......no trouble! I put a system in and damn near killed myself. I figured at 50% working pressure it would be safe! I changed it all out to iron pipe!

    My compressor ran for forty years...... didn’t figure another weekend would hurt it! Lol





    Bones
     
    Stogy likes this.
  12. gimpyshotrods
    Joined: May 20, 2009
    Posts: 17,895

    gimpyshotrods
    ALLIANCE MEMBER

    We use Flexzilla hoses at work. We beat the hell out of them. Even the oldest ones say who make them, all over the hose.

    We have yet to have a failure. I'd call them and ask them to replace it.
     
    Last edited: Aug 8, 2019
    Stogy likes this.
  13. Stogy
    Joined: Feb 10, 2007
    Posts: 17,579

    Stogy
    ALLIANCE MEMBER

    HRP it was the Barbed end fitting the Air Coupling was attached to that blew right out of the line causing about 80-90 psi to escape rapidly out of the hose it was attached to.

    Generally you run for the shut off valve or grab the hose bend it in half stop the rapid air release and unhook the line.

    That said couplers themselves are very important too.
     
    Last edited: Aug 8, 2019
  14. 5window
    Joined: Jan 29, 2005
    Posts: 7,773

    5window
    Member

    I'm only a part time hobbyist, but everything in my shop is plumbed with iron pipe.
     
  15. Looks like a press fitting, not designed to take a lot of pressure like the metal fittings on a high pressure line.

    In this case it appears the line was press fit to the adapter with no other measures to prevent what happened, heck even something as simple as a hose clamp would have been advantageous in this case. HRP

    [​IMG]
     
    Last edited: Aug 9, 2019
  16. Joliet Jake
    Joined: Dec 6, 2007
    Posts: 493

    Joliet Jake
    Member
    from Jax, FL

    Flexzilla is all I buy here in the shop for general use, probably have 25 of them in service. We have had one or two blow the end off just like the one in the first post, but the same thing has happened to other rubber hoses as well.
     
    gimpyshotrods likes this.
  17. Boneyard51
    Joined: Dec 10, 2017
    Posts: 4,641

    Boneyard51
    Member

    They make a tool that you can use baling wire to clamp the ends on air hoses , it works good, beats big clamps, then just wrap it with tape....and your back in business. My friend had one.....back in the day. Haven’t seen one in years, I think my friend made his.




    Bones
     
  18. egads
    Joined: Aug 23, 2011
    Posts: 834

    egads
    ALLIANCE MEMBER

  19. ekimneirbo
    Joined: Apr 29, 2017
    Posts: 1,619

    ekimneirbo
    Member
    from Brooks Ky

    Watch this video, then watch it a second time and listen to the noise after the explosion.Sounds to me like a tank full of pressure was released suddenly as the escaping pressure seems steady rather than being pumped gradually. Might be wrong about that, but thats my impression.

    Now notice that the heavier/thicker coupling and end cap are undamaged. A thinner wall pipe was used for the demonstration. So yes, overpressure can be dangerous, and so can hitting the system with a sudden charge of air.
    They won't say how much pressure they used for the demonstration. Boneyard51 said his system had a working pressure of 250 psi. I'm wondering if he used Schedule 40 or maybe 20 pipe for his system? Also did he leave his system pressurized 24/7 ? I always turn my system off when done. Air pressure is dangerous, so anyone choosing to use pvc does so at their own risk. Myself, I have no complaints.
     
  20. Roothawg
    Joined: Mar 14, 2001
    Posts: 20,456

    Roothawg
    Member

    I only use hand tools, that way I don't take a chance with compressed air. I always use a brush to paint my hot rods. ;)
     
    49ratfink likes this.

Share This Page

Register now to get rid of these ads!

Archive

Copyright © 1995-2020 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. Terms of Service. Privacy Policy.

Atomic Industry
Forum software by XenForo™ ©2010-2014 XenForo Ltd.