Solutions for Installation Damage

• Sharp edges on mating components of the O-ring gland
• Sharp threads over which the O-ring must pass during assembly
• Insufficient lead-in chamfer
• Oversize O-ring ID on piston
• Undersize O-ring ID on rod
• Twisting or pinching of O-ring during installation
• No O-ring lubrication during installation
• Low tear resistant elastomers such as Silicone

• Break all sharp edges
• Cover threads with tubes or tape during O-ring installation
• Provide a 15-20° lead-in chamfer
• Install correctly sized O-rings and use lubrication during assembly

O-RING RULE OF THUMB #10

When using only one back-up ring, be sure to install it on the low pressure side of the O-ring. » Learn More