5P-9519 O-ring for CAT bulldozer spare part

5P-9519 O-ring for CAT bulldozer spare part Featured Image
  • 5P-9519 O-ring for CAT bulldozer spare part

Short Description:

Large size VMQ silicone O-ring for Caterpillar machinery, inner diameter 843mm, static seal for high-temperature air and glycol circuit, prevents medium leakage and resists ozone aging.

Product Detail

Product Tags

description

VMQ silicone O-ring is high-temperature static seal, which fills groove gap by compression deformation. It is compatible with air and glycol, featuring wide temperature resistance, UV and ozone resistance. Hardening, cracking and loss of compression set will cause air and medium leakage, disrupting air and temperature control systems. This O-ring is NOT suitable for fuel, hydraulic oil and gear oil.

Part No.:5P-9519
Type: O-ring seal
Material: VMQ silicone rubber, Shore A70
Inner Diameter:843 mm
Cross-section Diameter:5.33 mm
Sealing Type: Static sealing
Compatible Medium: Air, glycol, high-aniline-point lubricating oil
Temperature Range: -55℃ ~ 150℃
Matching System: High-temperature air circuit, cooling circuit assembly

Application Scenarios

Fits Caterpillar bulldozers, loaders and generator sets, applied to air circuit, glycol cooling circuit and high-temperature static sealing of electrical compartment, for overhaul of high-temperature air and cooling systems.

FAQ 

Q：Can this silicone O-ring seal hydraulic oil or gear oil?
A：No. VMQ silicone is incompatible with mineral oil, it will swell and fail quickly.

Q：Can hardened O-ring keep working?
A：Not recommended. Hardening reduces resilience and leads to air leakage.

Q：Can the silicone O-ring be reused after removal?
A：No. Permanent compression set reduces sealing performance.

Q：Will new O-ring work if the groove has burrs?
A：Poor effect. Burrs will cut the silicone and cause re-leakage, repair groove first.

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