Installing an O-ring in a face seal gland is among the easiest of all installations. However, that doesn’t mean that there’s not potential for errors. Follow these tips and you’ll ensure a successful install.
The most important variable for installing an O-ring into a face seal is making sure the seal is sized properly. Refer to the O-Ring Handbook or consult a Parker Applications Engineer for assistance in sizing O-rings to face seal glands. If the O-ring is too small, once installed it will potentially walk up the side walls of the gland and become pinched when the mating faces meet. If the O-ring is too large, you could end up with a loop at one point on the O-ring which can cause the seal to jump up out of the groove or buckle over when the mating face compresses it. Both actions can and likely will damage the O-ring. Last, when bolting or clamping the mating faces together, make sure to use a star pattern in order to achieve equal compression on all points of the seal.
For more information refer to the Parker O-Ring Handbook. You can also visit Mobile inPHorm which is an engineering resource for material selection and gland design for O-ring applications.
Or visit us online at Parker O-Ring Division www.parkerorings.com.
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