Diaphragm check valve

From GAWDAwiki

A diaphragm check valve is a valve with a flexible rubber diaphragm. Flow is allowed when pressure on the upstream side of the diaphragm is greater than it is on the downstream side. When the positive pressure subsides, the diaphragm returns to its closed position.^[1]

Other Types of Valves

Other types of gases and welding valves include:

• Ball valve
• Butterfly valve
• Compressed gas valve
• Cylinder valve
• Gate valve
• Globe valve
• Life support valve
• Lift-check valve
• Manifold valve
• Metering valve
• Needle valve
• Pneumatic valve
• Post valve
• Pressure relief valve
• Residual pressure valve
• Shutoff valve
• Solenoid valve
• Stop-check valve
• Swing check valve

References

1. http://www.answers.com/topic/check-valve