123-7271 123-7271 SEAL RING 784C 793D

1. Quick Details of  seal 123-7271:

2. 123-7271 picture:

3. Service part number :

4. FAQ

Q: What is this piston seal ring, and what does it do?

A: This is a split-style piston seal ring, designed to fit into the groove of a hydraulic cylinder piston. It prevents fluid from bypassing the piston, ensuring maximum pressure is applied to move the cylinder rod efficiently.

Q: What material is this purple piston seal ring typically made of?

A: It is most commonly made of filled PTFE (Polytetrafluoroethylene). The purple color often indicates a high-performance grade, such as bronze-filled or carbon-filled PTFE, engineered for demanding hydraulic applications.

Q: Why is filled PTFE chosen for this piston seal ring?

A: Filled PTFE offers excellent low friction, wear resistance, and dimensional stability under high pressure. It maintains its shape through repeated cycles, ensuring consistent sealing performance and long service life. It also resists most hydraulic fluids and operates reliably across a wide temperature range.

Q: How do I install this split piston seal ring correctly?

A: Gently expand the ring by hand (do not overstretch it) and carefully seat it into the piston groove. If installing multiple rings, stagger their split gaps by 120° to prevent fluid bypass. When inserting the piston into the cylinder, use a tapered installation tool to avoid damaging the seal edges.

Q: What common mistakes cause early failure of this seal ring?

A: Common issues include overstretching or twisting the ring during installation, misaligning the split gaps, using the wrong ring size for the groove, and scratching the seal edges on the cylinder bore or piston.

5. Exhibition and Wearhous

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