113-15-12840 1131512840 Construction Machinery Loaders Parts Seal WA480-8 WA500-1

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5. FAQ

Q: What is this gasket used for?

A: This is a flat static seal gasket, installed between two flat mating surfaces in hydraulic pumps, valve bodies, or pipe flanges to prevent fluid leakage and compensate for minor surface irregularities.

Q: What material is this gasket made of?

A: This gasket is most commonly made of pure PTFE (Teflon) or filled PTFE, which is known for its outstanding chemical stability and non-stick properties.

Q: Why choose PTFE for this gasket?

A: PTFE resists nearly all hydraulic fluids, acids, and bases, operates reliably from -200°C to +260°C, and has low friction, so it won’t stick to mating parts even after long periods of service.

Q: How do I install this gasket properly?

A: Clean both sealing faces completely, position the gasket correctly over the ports or bolt holes, then tighten the fasteners gradually and evenly in a crisscross pattern to avoid warping the seal.

Q: What causes a PTFE gasket to fail early?

A: Common issues include scratched or dirty mating surfaces, uneven bolt torque leading to uneven compression, chemical incompatibility in extreme applications, and using the wrong gasket thickness for the flange gap.

Q: How long can a PTFE gasket last?

A: With clean surfaces and proper torque, a PTFE gasket can last for years of continuous service; it only needs replacement when the joint is disassembled for maintenance.

Q: Can I reuse a used gasket?

A: No, you should never reuse a gasket. Once compressed, the material forms a permanent compression set and will not re-seat properly, even if it looks undamaged. Always install a new gasket when reassembling the joint.

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