17M-15-25840 17M1525840 Sealing Ring Construction Machinery Parts D375A-3A D275A-2

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5. FAQ

Q: What is the structure of this gasket?
A: It is a simple, continuous circular ring with a uniform round cross-section. Its shape is engineered to fit precisely into a machined groove, where it is compressed to form a tight seal.

Q: Where is this gasket installed?
A: It is installed in a dedicated gland or O-ring groove on components like cylinder liners, valve bodies, or pump housings. When compressed between the two mating parts, it creates a static seal.

Q: What happens if the gasket’s dimensions are slightly off?
A: If the O-ring is too small, it won’t be compressed enough to seal, leading to leaks. If it’s too large, it will be overstretched during installation, causing permanent deformation and reduced elasticity, which also results in leaks.

Q: What happens if the gasket is installed backwards?
A: While O-rings are technically symmetrical, installing them can twist if not handled carefully. A twisted O-ring creates uneven compression, leading to leaks and accelerated wear on one side.

Q: What happens if the gasket is not replaced in time?
A: Over time, heat and chemical exposure cause FKM O-rings to harden, lose elasticity, or develop cracks. A worn O-ring will fail to seal, leading to fluid leaks, pressure loss, and potential damage to the surrounding components.

Q: Can this gasket be reused after disassembly?
A: No, it is not recommended. Once compressed and exposed to heat and fluids, the O-ring takes a permanent “compression set” and loses its ability to rebound and seal effectively. Reusing it will almost always lead to leaks.

6. Exhibition and Wearhous

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