Home
Home
Forums
Forums
Downloads
Downloads
Account
Account
Aquatic Gardeners Association
Main Menu   
 
HomeHome  
    Home
Community  
    Forums
    FAQ
    Content
    Gallery
    Reviews
    Surveys
    Topics
Members  
    Private Messages
    Your Account
    Profile
    Members List
Statistics  
    Statistics
Files & Links  
    Downloads
    Web Links
News  
    News
    Submit News
Other  
    Advertising
    Shout Box
    Site Map
    Recommend Us
    Feedback
    Legal Notices


User Info   
 
Good morning 
Anonymous



Register
Lost Password
Username
Password

 Online:   
Member(s):

Guest(s):
02. Guest
03. Guest
04. Guest
05. Guest
06. Guest
07. Guest
08. Guest
09. Guest
10. Guest
11. Guest
12. Guest
13. Guest
14. Guest
15. Guest
16. Guest
17. Guest
18. Guest
19. Guest
20. Guest
21. Guest
22. Guest
23. Guest
24. Guest
25. Guest
26. Guest
27. Guest
28. Guest
29. Guest
30. Guest
31. Guest
32. Guest
33. Guest
34. Guest
35. Guest
36. Guest
37. Guest
38. Guest
39. Guest
40. Guest
41. Guest
42. Guest
43. Guest
44. Guest
45. Guest
46. Guest
47. Guest
48. Guest
49. Guest
50. Guest
51. Guest
52. Guest
53. Guest
54. Guest
55. Guest
56. Guest
57. Guest
58. Guest
59. Guest
60. Guest
61. Guest
62. Guest
63. Guest
64. Guest
65. Guest
66. Guest
67. Guest
68. Guest
69. Guest
70. Guest
71. Guest
72. Guest
73. Guest
74. Guest
75. Guest
76. Guest
77. Guest
78. Guest
79. Guest
80. Guest
81. Guest
82. Guest
83. Guest
84. Guest
85. Guest
86. Guest
87. Guest
88. Guest
89. Guest
90. Guest
91. Guest
92. Guest
93. Guest
94. Guest
95. Guest
96. Guest
97. Guest
98. Guest
99. Guest
100. Guest
101. Guest
102. Guest
103. Guest
104. Guest
105. Guest
106. Guest
107. Guest
108. Guest
109. Guest
110. Guest
111. Guest
112. Guest

Most Ever Online:   
 Guest(s): 464
 Member(s): 16
 Total: 480

Forums Forums:   
 Posts: 340,007
 Topics: 30,803




http://indianaquariumhobbyist.com/community/ :: View topic - CO2 pressurised setup:enquiry
Forum Index  |  Search  |  Usergroups  |  Edit your profile  |  Members  |  Log in to check your private messages
Ranks  |  Staff  |  Statistics  |  Board Rules  |  Forum FAQ  |  Log in



CO2 pressurised setup:enquiry

 
Post new topic   Reply to topic   printer-friendly view    http://indianaquariumhobbyist.com/community/ Forum Index -> CO2 Equipment for Planted Aquaria
View previous topic :: View next topic  
Author Message
vinven
Regular Poster on IAH
Regular Poster on IAH



Joined: May 02, 2005
Posts: 432
Location: Bangalore

Status: Offline
PostPosted: Mon Apr 16, 2007 12:15 pm Post subject: CO2 pressurised setup:enquiry Reply with quote

 Hey  everyone...Over  the  span  of  last  1  year  since  ive  had  a  planted  tank,i  have  observed  that  my  2  kg  CO2  gas  cylinder  gets  empty  in  a  span  of  10-15  days  while  i  have  heard  that  it  should  last  me  longer.I  have  changed  the  eagle  gas  regulator  once  and  repaired  the  2nd  gas  regulator  twice  since  there  was  supposed  to  be  a  leakage  in  that...Now  what  i  want  to  know  is  approximately  how  long  should  this  2  kg  cylinder  last  me  if  i  supply  CO2  at  the  rate  of  around  1.5-2  bubbles  per  second  to  one  tank?Is  it  that  the  10-15  day  period  to  fill  gas  again  normal  or  is  it  that  i  still  may  have  a  leakage???
 
 Somebody  else  suggested  to  me  that  i  should  try  esaab  regulators  (not  sure  if  i  spelt  it  right)  What  should  i  do....going  to  fill  the  gas  every  10  days  is  working  out  pretty  expensive  and  going  there  is  a  pain  too   Crying or Very sad  
 
 -V!nay
Back to top
View user's profile Send private message Send e-mail Yahoo Messenger MSN Messenger
nature_lover
Committed Member of IAH
Committed Member of IAH



Joined: Feb 15, 2006
Posts: 2588
Location: Coimbatore

Status: Offline
PostPosted: Mon Apr 16, 2007 12:34 pm Post subject: Re: CO2 pressurised setup:enquiry Reply with quote

 Hi  Vinay,
 
 To  find  out  whether  you  have  a  leak,  use  soap  solution  on  the  joints  and  find  out  if  it  fizzles  at  some  place.
Back to top
View user's profile Send private message Send e-mail Visit poster's website
mayurdev
Regular Poster on IAH
Regular Poster on IAH



Joined: Jun 05, 2006
Posts: 867
Location: Bangalore

Status: Offline
PostPosted: Mon Apr 16, 2007 3:27 pm Post subject: Re: CO2 pressurised setup:enquiry Reply with quote

 Hi  
 Do  check  if  your  cylinder  is  getting  full  every  time  you  give  it  for  filling.
 Ihave  had  a  bad  experience.
Back to top
View user's profile Send private message Yahoo Messenger MSN Messenger
harshal
Regular Poster on IAH
Regular Poster on IAH



Joined: Jan 12, 2006
Posts: 979
Location: Bangalore

Status: Offline
PostPosted: Mon Apr 16, 2007 5:40 pm Post subject: Re: CO2 pressurised setup:enquiry Reply with quote

 Hi  vinay!
 
      I  am  using  a  7kg  cylinder  for  my  4ft  tank  which  is  due  for  change  now,  it  was  started  on  24th  march  2006,  thats  over  a  year.  I  am  sure  you  have  a  leak  problem  it  could  be  your  regulator  or  the  cylinder  itself  please  use  soap  water  and  check.  
 
    Your  cylinder  should  last  you  for  atleast  3  months.
 
    Regards
       Harshal
Back to top
View user's profile Send private message Send e-mail
vinven
Regular Poster on IAH
Regular Poster on IAH



Joined: May 02, 2005
Posts: 432
Location: Bangalore

Status: Offline
PostPosted: Mon Apr 16, 2007 6:04 pm Post subject: Re: CO2 pressurised setup:enquiry Reply with quote

 Yes.I  guess  youre  right...I  havent  checked  it  after  i  got  it  back  from  service.It  lasted  me  only  15  days  again  as  usual.I  didnt  bother  suspecting  a  leakage  again  taking  into  consideration  that  it  was  service  by  these  professional  guys.Will  probably  fill  up  the  gas  tomorrow  and  check  it  again.
 
 Are  these  Eagle  brand  regulators  good  enough  or  do  i  need  to  change  them  to  something  else  ?
 
 thanx  guys
 -V!nay
Back to top
View user's profile Send private message Send e-mail Yahoo Messenger MSN Messenger
hiren
IAH New Member
IAH New Member



Joined: May 26, 2006
Posts: 17
Location: Mumbai

Status: Offline
PostPosted: Mon Apr 16, 2007 10:31 pm Post subject: Re: CO2 pressurised setup:enquiry Reply with quote

 Hi  Vinay,
 
 Few  things  that  you  can  check  to  locate  the  problem
 
 1.  Check  the  weight  of  the  cylinder,  usually  tare  wt  is  mentioned  on  the  cylinder.  This  will  give  you  rough  idea  about  wt  of  gas.  
 2.  After  connecting  regulator  see  the  pressure  if  it  is  more  than  70-  80  Kg/cm2  appx  then  your  co2  refiller  is  not  cheating  you.
 3.  Check  for  leakages  with  soap  solution,  but  i  find  shaving  foam  to  be  more  practical.  
 4.  If  no  leakages  found  with  regulator  connection  then  check  the  spindle  on  main  valve  (on  cylinder).  Problem  can  be  with  the  rubber  bush  inside  the  spindle  of  main  valve.
 
 Hope  these  points  will  help  you  to  locate  the  problem.
 
 Hiren
Back to top
View user's profile Send private message Send e-mail
Madan
Admin
Admin



Joined: Jun 29, 2003
Posts: 7087
Location: Bengaluru, India

Status: Offline
PostPosted: Mon Apr 16, 2007 10:39 pm Post subject: Re: CO2 pressurised setup:enquiry Reply with quote

 Vinay/Hiren,
 
 A  full  Cylinder  of  CO2  should  not  show  a  pressure  of  over  60  Kg/Cm2.
 
 The  normal  filling  ratio  is  2/3  of  the  cylinder.  CO2  is  filled  as  a  liquid  and  the  max  volume  that  can  be  filled  is  2/3  rd  of  cylinder  volume.  Moreover  CO2  will  remain  liquified  at  about  58-60  Kg/cm2  at  ambient  temperature.  The  CO2  pressure  in  the  cylinder  will  fall  below  58  Kg/Cm2  only  when  all  the  liquid  CO2  is  exhausted  and  the  last  remaining  gas  is  being  consumed.  As  long  as  there  is  CO2  in  the  liquid  form  in  the  cylinder  the  pressure  will  remain  about  58  kg/cm2.  As  you  consume  the  gas  a  little  liquid  evaporates  and  maintains  the  pressure  at  58  Kg/Cm2.
 
 If  your  cylinder  pressure  is  70-80  Kg/Cm2  then  either  your  Pressure  Gauge  is  wrong  or  Your  Cylinder  is  full  of  liquid  CO2  and  is  hydraulically  pressurised.  The  latter  is  a  dangerous  situation  to  be  in.
 
 Take  care.
Back to top
View user's profile Send private message
hiren
IAH New Member
IAH New Member



Joined: May 26, 2006
Posts: 17
Location: Mumbai

Status: Offline
PostPosted: Mon Apr 16, 2007 11:13 pm Post subject: Re: CO2 pressurised setup:enquiry Reply with quote

 Thanks  Madan  for  the  info.
 
 If  I  understand  it  correctly  u  are  referring  to  is  vapour  pressure  of  CO2  which  is  830  psi/57  kg  @  20  C.
 
 But  to  best  of  my  knowledge  at  30  C  its  very  close  to  71  kgs  and  at  31.1  C  its  72.95  Kg  (which  is  also  the  crtical  point  of  CO2).
 
 Hence  I  suppose  70  Kg  pressure  on  my  cylinder  would  be  OK  and  not  hydraulically  pressurised.  Correct  me  if  i  am  wrong.
 
 Thanks,
 
 Hiren
Back to top
View user's profile Send private message Send e-mail
Madan
Admin
Admin



Joined: Jun 29, 2003
Posts: 7087
Location: Bengaluru, India

Status: Offline
PostPosted: Mon Apr 16, 2007 11:30 pm Post subject: Re: CO2 pressurised setup:enquiry Reply with quote

 Nope,  at  ambient  temperature  below  the  critical  point  and  2/3  filling  ratio  the  pressure  will  be  58-60  Kg/cm2.  Critrical  temperature  of  CO2  is  34  Deg  C  if  I  am  not  mistaken,  I  am  really  not  sure.
 
 Place  the  Cylinder  in  the  sun  and  as  the  cylinder  warms  up  above  34  Deg  C  you'll  see  the  pressure  rising,  and  not  before.  I've  seen  this  happen  at  a  friends  house  where  he  would  store  the  cylinder  in  the  sun.  The  pressure  in  the  cylinder  would  be  58  Kg/cm2  and  as  the  afternoon  wore  on  and  the  sun  warmed  up  the  cylinder  beyond  34  Deg  C  the  pressure  would  rise,  after  a  similar  discussion  on  Cylinder  pressure  we  sat  down  measuring  the  temperature  of  the  CO2  cylinder  one  day  with  nothing  better  to  do.
 
 I  use  100s  of  CO2  cylinders  in  a  bank  for  fire  fighting  on  tankers  and  the  International  Regulation  with  regard  to  filling  ratio  and  maximum  pressure  is  the  same  every  where.
Back to top
View user's profile Send private message
hiren
IAH New Member
IAH New Member



Joined: May 26, 2006
Posts: 17
Location: Mumbai

Status: Offline
PostPosted: Mon Apr 16, 2007 11:43 pm Post subject: Re: CO2 pressurised setup:enquiry Reply with quote

 Point  taken  Madan.  Once  again  thanks  for  the  information.
 
 Hiren
Back to top
View user's profile Send private message Send e-mail
Madan
Admin
Admin



Joined: Jun 29, 2003
Posts: 7087
Location: Bengaluru, India

Status: Offline
PostPosted: Tue Apr 17, 2007 8:22 am Post subject: Re: CO2 pressurised setup:enquiry Reply with quote

 We  can  do  a  simple  check  ourselves.  Check  your  room  temperature  and  Cylinder  pressure  the  cylinder  pressure  will  not  be  above  60  Kg/Cm2  at  anytime.
Back to top
View user's profile Send private message
rexfrancis
IAH New Member
IAH New Member



Joined: Jul 16, 2007
Posts: 63
Location: Bangalore, Bannerghatta Rd.

Status: Offline
PostPosted: Sun Mar 09, 2008 3:47 pm Post subject: Re: CO2 pressurised setup:enquiry Reply with quote

 Hello  Folks
 
 I  have  got  a  3  Liter  imported  cylinder  which  has  the  following  specification,
 
 CO2  â€“  2,  TP250,  V  3.0,  W6.00,  BS5045/1,  2007/6
 
 This  cylinder  can  hold  2  KGs  of  CO2  and  the  total  capacity  is  3  Liter  (Volume).
 
 So  as  per  2/3  principle  this  newly  filled  cylinder  is  filled  with  2  KGs  of  CO2  which  is  close  to  2  Liters  of  CO2.
 
 My  Question  is  around  the  pressure  in  the  newly  filled  cylinder.  
 
 My  Dual  Gauge  Regulator  shows  cylinder  pressure  of  1000PSI  or  70  kg/cm2  at  ambient  temperature.
 
 I  have  compared  the  TAR  weight  &  filled  cylinder  weight,  which  is  around  2  KGs.
 
 So  the  tank  is  filled  with  only  with  2  KGs  of  CO2,  there  is  no  overfill.
 
 According  to  this  post,  this  cylinder  should  not  have  more  than  60  kg/cm2,  I  am  confused  now,   is  it  safe  to  use  the  cylinder  under  this  pressure.
 
 I  am  sure  that  my  regulator  gauge  is  showing  the  correct  pressure  because  regulator  from  the  supplier  also  shown  the  same  pressure.
 
 Any  clarification  will  be  helpful.
 
 (Sorry  about  responding  to  this  old  Post,  Since  it  has  been  confirmed  and  accepted  by  everybody  that  60kg/cm2  is  what  a  newly  cylinder  pressure  should  be,  I  thought  of  double  checking  with  experts  out  here,  better  late  than  never!!)
Back to top
View user's profile Send private message
Display posts from previous:
Post new topic  Reply to topic   printer-friendly view http://indianaquariumhobbyist.com/community/ Forum Index ->  CO2 Equipment for Planted Aquaria All times are UTC + 5.5 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You cannot download files in this forum




Powered By: phpBB © 2001 - 2006 phpBB Group
Nuke-Evo Conversion By: Evo-Themez | iCGstation v1.0 Template By Ray


[News Feed] [Forums Feed] [Downloads Feed] [Web Links Feed] [Validate robots.txt]


Forum Modification Pack by Revolution-Mods.

PHP-Nuke Copyright © 2006 by Francisco Burzi.
All logos, trademarks and posts in this site are property of their respective owners, all the rest © 2006 by the site owner.
Powered by Nuke-Evolution
[ Page Generation: 6048 Seconds | Memory Usage: 3.04 MB | DB Queries: 117 ]

Do Not Click