Pinch valve, chance of cold welding silicone tube

Click For Summary
SUMMARY

The discussion centers on the risk of cold welding in silicone tubes when used with solenoid pinch valves, specifically in low-pressure applications. Users express concern about the likelihood of the silicone tube fusing at the pinch point after prolonged use, particularly when subjected to pressure sufficient to halt fluid flow. It is established that excessive pressure and duration can increase the risk of cold welding. Recommendations for mitigating this risk include adjusting pinch pressure and considering alternative materials or designs.

PREREQUISITES
  • Understanding of solenoid pinch valves and their applications
  • Knowledge of silicone tube properties and behavior under pressure
  • Familiarity with cold welding phenomena in elastomers
  • Basic principles of fluid dynamics in low-pressure systems
NEXT STEPS
  • Research methods to adjust pinch pressure in solenoid valves
  • Explore alternative materials to silicone that resist cold welding
  • Investigate design modifications to minimize pinch duration
  • Learn about the effects of temperature on silicone tube performance
USEFUL FOR

Engineers, product designers, and technicians involved in fluid control systems, particularly those working with silicone materials and solenoid valves.

oemmake
Messages
7
Reaction score
0
Hi everyone,

In a current project, I'm curious about the risk of silicone tube cold welding when used with a solenoid pinch valve, such as = http://cfnewsads.thomasnet.com/images/large/454/454667.jpg

What is the likelihood silicone tube will cold weld at the pinch point, if the pressure is just enough to stop low pressure fluid flow (water), and, if pinched for several months. What are the chances of the pinched area, cold welding? If cold welding is a risk, what can be done to avoid it?

I assumed that an overly strong pinch might cold weld silicone together.

many thanks / simon
 
Engineering news on Phys.org
I'm sorry you are not generating any responses at the moment. Is there any additional information you can share with us? Any new findings?
 

Similar threads

What would happen if I pinch my nose while I sneeze?
  • · Replies 4 ·
Replies
4
Views
3K
Need advice and hints for working with helium
  • · Replies 14 ·
Replies
14
Views
1K
Help me build a piston/cylinder expander
  • · Replies 3 ·
Replies
3
Views
4K
Graduate How does a Western free reed work? (musical instruments)
  • · Replies 12 ·
Replies
12
Views
4K
Compressible flow problem in heated tube reactor
  • · Replies 2 ·
Replies
2
Views
3K
Can I effectively heat my pool using a saddle valve and flexible tubing?
  • · Replies 2 ·
Replies
2
Views
6K
Graduate How Can Tube Parameters Influence Fluid Drainage in Glaucoma Treatment?
  • · Replies 3 ·
Replies
3
Views
3K
Quick Electric On/Off Water Valves
  • · Replies 1 ·
Replies
1
Views
2K
Is my fictional Solar System stable and realistic?
  • · Replies 21 ·
Replies
21
Views
5K
Undergrad What false hints of new physics were most notable?
  • · Replies 30 ·
2
Replies
30
Views
9K