The British Construction Equipment Forum  

Go Back   The British Construction Equipment Forum > EQUIPMENT > Technical Q&A


Reply
 
Thread Tools Search this Thread Display Modes
  #1   IP: 86.153.6.246
Old 16-03-2018, 09:31 PM
pond digger pond digger is offline
Knight of the East and West
 
Join Date: Dec 2010
Location: East Yorks
Posts: 2,408
Default Gear pump v piston pump

Which is best, and why?
Reply With Quote
  #2   IP: 92.14.252.163
Old 16-03-2018, 10:26 PM
cps140's Avatar
cps140 cps140 is offline
Knight of the East and West
 
Join Date: Apr 2010
Location: CO TYRONE, IRELAND
Posts: 2,771
Default Re: Gear pump v piston pump

Gear pump is simpler fixed flow pump. Piston is more complex with variable flow etc, load sensing etc.

Both have there place
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote
  #3   IP: 109.152.18.170
Old 16-03-2018, 10:33 PM
Shovelhands's Avatar
Shovelhands Shovelhands is offline
Knight of the East and West
 
Join Date: Nov 2014
Location: Sunny Essex
Posts: 2,141
Default Re: Gear pump v piston pump

Quote:
Originally Posted by pond digger View Post
Which is best, and why?
For what application?
Reply With Quote
  #4   IP: 86.153.6.246
Old 16-03-2018, 10:52 PM
pond digger pond digger is offline
Knight of the East and West
 
Join Date: Dec 2010
Location: East Yorks
Posts: 2,408
Default Re: Gear pump v piston pump

Quote:
Originally Posted by Shovelhands View Post
For what application?
Just been looking at mini specs, and one manufacturer gives a choice
Reply With Quote
  #5   IP: 86.153.6.246
Old 16-03-2018, 10:54 PM
pond digger pond digger is offline
Knight of the East and West
 
Join Date: Dec 2010
Location: East Yorks
Posts: 2,408
Default Re: Gear pump v piston pump

Quote:
Originally Posted by cps140 View Post
Gear pump is simpler fixed flow pump. Piston is more complex with variable flow etc, load sensing etc.

Both have there place
So on a mini, the gear pump is going to be the budget option?
Reply With Quote
  #6   IP: 109.152.18.170
Old 16-03-2018, 10:57 PM
Shovelhands's Avatar
Shovelhands Shovelhands is offline
Knight of the East and West
 
Join Date: Nov 2014
Location: Sunny Essex
Posts: 2,141
Default Re: Gear pump v piston pump

Quote:
Originally Posted by pond digger View Post
Just been looking at mini specs, and one manufacturer gives a choice
Gear pump will do the job, Variable piston pump will be smoother and perform better, imo. Iíd go Variable every time.
Reply With Quote
  #7   IP: 81.157.198.72
Old 17-03-2018, 12:53 AM
JD450A's Avatar
JD450A JD450A is offline
Prince of Jerusalem
 
Join Date: Jan 2011
Location: Not really sure
Posts: 5,003
Default Re: Gear pump v piston pump

Gearpumps are simple cheap and reliable.... Most basic pump and basically the faster it turns the more Flow/Power you get.

Variable pumps can give the same Flow/Power (within reason) through a entire rev band.
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

"IT'S ALL DOWN TO YOUR OWN SITUATION."
Reply With Quote
  #8   IP: 188.220.6.135
Old 17-03-2018, 06:04 PM
Davejcb Davejcb is offline
Sublime Master Elected
 
Join Date: Jul 2013
Posts: 954
Default Re: Gear pump v piston pump

How about adding open or closed centre pumps into the equation?
Reply With Quote
  #9   IP: 92.14.252.163
Old 17-03-2018, 07:24 PM
cps140's Avatar
cps140 cps140 is offline
Knight of the East and West
 
Join Date: Apr 2010
Location: CO TYRONE, IRELAND
Posts: 2,771
Default Re: Gear pump v piston pump

Quote:
Originally Posted by Davejcb View Post
How about adding open or closed centre pumps into the equation?
Gear pumps will be on an open centre hydraulic system. The gear pump will be pumping oil as soon as the engine starts so it needs to go some where when no fuction is used so it returns through the open circuit to the tank. Closed circuit will only start to pump when a function is operated.
You will get better flow Sharing with piston pumps etc
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote
  #10   IP: 92.14.69.104
Old 17-03-2018, 09:01 PM
mogman's Avatar
mogman mogman is offline
Knight of the East
 
Join Date: Apr 2010
Location: In front of me computer
Posts: 4,420
Default Re: Gear pump v piston pump

Iíd have a piston swash plate pump over a gear pump, for a start they donít wear as fast plus more economical to run as adian said a gear pump is pumping all the time,where a piston pump swashes to neutral when there is no demand so no load on the engine
Iíve made a few hydraulic power packs for different things and one with a gear pump on used to get a lot hotter and used more fuel than the piston pump ones
__________________
If it an't broke adapt it
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

If you can't buy it build it
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

 
Partner Links



All times are GMT +1. The time now is 07:35 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.