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When it comes to keeping your Neptune chemical metering and diaphragm pumps running smoothly and reliably, you need a lubricant that meets high performance, high quality, and exact OEM specifications. That’s where Neptune Zurnoil EP-68, Part #106549 comes in.
| Specification | Details |
|---|---|
| Viscosity / Grade | EP gear oil, ISO VG 68 — formulated to provide excellent lubrication under Neptune’s standard hydraulic fluid requirements. PSG+2Cannon Water Technology+2 |
| Size / Packaging | 1 US quart size — the perfect size for maintenance or topping off without waste. Cannon Water Technology+2Pump Catalog+2 |
| OEM Part & Compatibility | Genuine Neptune part; designed specifically for Neptune diaphragm / metering pumps. Meets or exceeds OEM standards. |
Proper hydraulic fluid is critical. Neptune’s manuals specify EP Gear Oil ISO-68 as the standard fluid for models such as Series 560, 500, 500-A, and related diaphragm pumps. PSG+2PSG+2
Using the correct viscosity ensures optimal pump head performance, reliable stroke motion, extended component life (diaphragm, valves, seals), and helps avoid premature wear or failure. Over- or under-viscous fluid leads to inefficiency or damage. PSG
Compatibility with OEM parts — using Part #106549 ensures maintenance or replacements align with Neptune’s recommendations for performance and warranty.
Used in Neptune Hydraulic Diaphragm (“dia-Pump”) models for chemical metering, feed systems, process water treatment, agricultural dosing, etc. Neptune Pumps+2EGM, LLC+2
Also suitable in standard pressure ranges; for high-pressure applications or larger motors (½ HP and above, pressures exceeding ~1000 PSI), Neptune recommends heavier oil (e.g. EP SAE 90) or specified alternate fluids. PSG+1
Usage / maintenance tips:
Always ensure the oil level is correct. Fill slowly via the fill opening; allow time for the fluid to work through the oil head and bleed-air out via air-bleed plug. Do not overfill. PSG+1
Use only genuine or equivalent ISO VG 68 EP gear oil for standard duty. If subjected to unusually high pressure or high temperature, refer to Neptune’s specs for when heavier oils are needed. PSG+1
Genuine OEM quality — Avoids the uncertainties of off-brand substitutes.
Correct spec, right price — We stock it reliably and can supply the part when you need it, minimizing downtime.
Expert support — Our team understands Neptune's product line, so we can help you determine if your pump needs EP-68 or a heavier specification.
Product: Neptune Zurnoil EP Gear Oil, Part #106549
Viscosity: ISO VG 68 (EP)
Quantity: 1 Quart
Manufacturer: Neptune / Zurnoil
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