Yuken PVR50-36 Vane Pump: Near the Top of the PVR50 Frame:- A nameplate reading PVR50-F-F-36-RAA-3180 puts you close to the ceiling of what the PVR50 housing is built to deliver. That's worth knowing before you order a replacement, because a pump running near the top of its frame's range behaves differently than one sitting comfortably in the middle. Reading PVR50-F-F-36-RAA-3180:- PVR marks the series — variable displacement, pressure-compensated vane pump. 50 is the frame size. F-F covers shaft and port configuration. RAA specifies rotation and mounting. 3180 is the design/revision code for this particular build. What “36“ means for this frame:- That number is maximum displacement — around 36 cm³ per revolution. Within the PVR50 lineup, that's toward the high end of what this frame size is rated to produce; push much further and you're generally into the next frame size up rather than a bigger number on the same PVR50 housing. Why the upper end of a frame runs differently than the middle:- A pump working near the top of its frame's displacement range moves more oil per revolution through the same physical housing as a smaller variant. That means more heat generated at the same duty cycle, and less thermal margin if the reservoir, cooling, or filtration on the machine wasn't sized with that in mind. A PVR50-20 and a PVR50-36 can sit in identical-looking housings and still have meaningfully different tolerance for continuous, heavy-load operation. When 36 is right — and when you actually need the next frame up:- If your original equipment shipped with a -36 and the application hasn't changed, replacing like-for-like is the safe move. But if you're troubleshooting chronic overheating, or a mechanic suggested “just go bigger“ to fix a performance complaint, that's the point to have someone check whether the frame itself — not just the displacement code — needs to change. Moving to a larger frame is a different decision than moving to a higher number within PVR50. What to verify before buying a replacement:- Confirm the full part number stamped on the housing, not just “PVR50-36.“ Check whether your machine's original spec called for this displacement or whether a previous repair swapped in something else without documentation. And ask directly whether the replacement is new, reconditioned, or a compatible build — the price and expected service life differ across all three. Sourcing it through Advance Hydraulic Works:- Advance Hydraulic Works operates as an importer and trader of hydraulic pumps and motors, not a manufacturer. For a coded part number like this one, that means the actual value delivered is accurate part matching and verification before the order ships — not producing the unit in-house. FAQs:- 1.What does the “36“ in PVR50-36 mean? It's the pump's maximum displacement, roughly 36 cm³ per revolution — near the upper end of what the PVR50 frame is rated to deliver. 2.Should I worry about heat with a PVR50-36? It's worth checking that your reservoir, cooling, and filtration were sized for this displacement, since pumps near the top of a frame's range generate more heat at the same duty cycle than smaller variants in the same housing. 3.Can I go higher than 36 within the PVR50 frame? Generally no — displacements much above this point typically mean moving to a larger frame size rather than a bigger number on the same PVR50 housing. 4.Is PVR50-F-F-36-RAA-3180 the number I should quote to a supplier? Yes — the full string confirms shaft, port, rotation, and revision details match your original unit, not just the displacement. 5.Does Advance Hydraulic Works manufacture this pump? No — it sources and supplies genuine units as an importer and trader rather than manufacturing them in-house.
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