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Where does tungsten carbide go in a pump or compressor?

Tungsten carbide earns its keep wherever a part rubs, slides, or gets blasted by flow while you can't afford downtime. The three classic spots and their grades:

• Mechanical seal faces — run against a mating ring at high speed; hard fine-grain grade gives the longest face life: YG6X or YG6.
• Bushings, sleeves, wear rings — enemy is abrasive particles; YG8 balances wear resistance with toughness for vibration and misalignment.
• Letdown / high-pressure-drop internals — flashing, cavitation, two-phase erosion; erosion favors hardness but impact favors toughness: YG15 class (HRA 87.5), YG15C-type for seats.

The rule of thumb: fine scratches on the face → harder grade (YG6X/YG6) · vibration, chipping, breakage → tougher grade (YG8 → YG15 class) · smooth scalloped material loss → design review + erosion-resistant grade · porous surface in chemical service → nickel-binder corrosion-resistant grade.

Send media (and solid content), temperature, pressure/ΔP, speed, and a photo of the failed part — that narrows the grade to one or two options. Quote within 1–2 business days.