Back-up rings prevent O-rings from gap extrusion in static radial sealing (fig. 1). This section focuses on sealing systems for hydraulic cylinders. Edition August 20hydraulic cylinder calculator.
Back-Up Rings buy on-line or call 208-413-63- back-up rings provide extra. A back-up ring is designed to fit between the O-ring and the extrusion gap and . A back-up ring is a rigid ring that holds an elastomeric seal or plastic (such as Polyethylene) connection to its designed shape and in its correct place. Back-up rings or anti-extrusion rings are washer-like devices used to prevent.
Hydraulic cylinders; High-pressure hydraulic systems,; High-pressure valves. Back-up Rings hold an elastomeric seal to its designed shape, in its correct place. Often used with O-Rings to prevent extrusion at high pressures. Smaller sizes of back-up rings are available only as a single turn. Our back-up rings are manufactured in either virgin PTFE, PEEKTM (from Victrex plc) or filled PTFE, depending on the application. Installation of backup ring and o-ring on to full open suction valve seat.
Back-up rings are plastic or rubber rings used to prevent the O-ring from entering the clearance gap. When high pressures are exerted on the O-ring, its soft . The O-ring is the most common type of fluid seal.
An O-ring’s simple design lends itself to a multitude of sealing uses, including static, reciprocal, oscillating, and . Extrusion is one of the most common types of O-Ring failure. When the internal systemic pressure of an application becomes too great, the O-Ring will frequently . Back-up rings provide added extrusion resistance, and prevent damage to . ColumbiaERD offers custom backup rings and standard sizes including Scarf. MIL-P-834O-Ring compound in MIL-H-832and MIL-56hydraulic fluids. MFP Seals manufactures both inch and metric sized O-Rings.
Choose from the wide variety of colored O-Rings from the O-Ring size charts. Rhondama stock and manufacture a range of different Back-up rings in a variety of profiles and materials. We can supply back-up rings in spiral, contoure split . Lubricants such as oil and grease are able to penetrate the fabric and allow the seal to be highly wear resistant. HOERBIGER back-up rings are used to prevent non-metallic sealing rings from extruding into the space between the piston rod and packing cup.