Gasket over-compression because of pipe mis-alignments is one of the most common problems we see on a daily base. The flanges are not parallel and therefore we squeeze the gaskets until it stops leaking. The result is a completely destroyed gasket. The above illustration shows how the red plastic ring prevents over compression of the elastomer. Even if we give it the extra torque above the recommended levels, the gasket is fully protected.
Snap-On 1.5" EPDM
Snap-On 0.50" EPDM
Snap-On 0.75" EPDM
Snap-On 1.5" Platinum Silicone
Snap-On 1.5" Platinum Silicone
Snap-On 1.5" Platinum Silicone
Snap-On 2" EPDM
Snap-On 0.75" Platinum Silicone
Snap-On 0.75" Platinum Silicone
Snap-On 1" EPDM
Double Slit Clamp
Double Slit Clamp
Snap-On 1.5" EPDM
Snap-On 0.50" EPDM
Snap-On 0.75" EPDM
Snap-On 1.5" Platinum Silicone
Snap-On 1.5" Platinum Silicone
Snap-On 1.5" Platinum Silicone
Snap-On 2" EPDM
Snap-On 0.75" Platinum Silicone
Snap-On 0.75" Platinum Silicone
Snap-On 1" EPDM
Double Slit Clamp
Double Slit Clamp
Out of gallery
Click on the above photo for more details
The Solution
The Snap-On™ gasket has this plastic ring on the outside that is just a little thinner than the actual elastomer gasket itself. Place the gasket over one ferrule by snapping it on. Place the other ferrule on top of the gasket and put a clamp around the fittings. When you turn the wing-nut you will first compress the rubber material until the ferrule hits the plastic ring. Soon you will notice that you are not able to turn the wing-nut any further. The plastic ring creates a full stop. It is impossible to further (over-) compress the gasket. Even in a situation where there is pipe misalignment.