Hydraulic Oil (Petroleum) is a mineral-oil based fluid with anti-wear, anti-foam and oxidation-inhibiting additives. It has a specific gravity of about 0.86 to 0.88 and a high flash point, often above 400°F (204°C). It transmits power in hydraulic presses, injection molding machines, mobile equipment and lifts. Bulk hydraulic oil and used oil tanks need secondary containment and protection from water and dirt. Use the compatibility ratings to choose the right tank resin, fittings and gaskets.
Nylon is the most economical tank material for Hydraulic Oil (Petroleum), rated Excellent. PVDF (Kynar®) is also rated Good or better. Avoid polypropylene tanks, polypropylene fittings and EPDM gaskets. Rated Fair (contact us before use): HDPE tanks and HDPE fittings.
How Hydraulic Oil (Petroleum) works with the plastics used to make our storage tanks.
| Material | Relative cost | Rating |
|---|---|---|
| HDPE $ | $$$$ | C Fair |
| Polypropylene $$ | $$$$ | D Not Recommended |
| Nylon $$$ | $$$$ | A Excellent |
| PVDF (Kynar®) $$$$ | $$$$ | A Excellent |
How Hydraulic Oil (Petroleum) works with the plastics used for tank fittings.
| Material | Rating |
|---|---|
| HDPE | C Fair |
| PVC | A Excellent |
| CPVC | — No Data |
| Polypropylene | D Not Recommended |
| PVDF | A Excellent |
How Hydraulic Oil (Petroleum) works with gasket and O-ring materials.
| Material | Rating |
|---|---|
| Buna-N | A Excellent |
| EPDM | D Not Recommended |
| Viton® | A Excellent |
How Hydraulic Oil (Petroleum) works with the metals used for fittings and bolts.
| Material | Rating |
|---|---|
| 316 Stainless Steel | A Excellent |
| Hastelloy | A Excellent |
| Titanium | — No Data |
| Aluminum | A Excellent |
Storing this chemical in polypropylene?
Polypropylene tanks from 25 to 6,000 gallons with polypropylene fittings installed. Confirm concentration and temperature with us before you order.
Send the chemical, concentration, temperature and size. We’ll match the tank and fittings and send a quote.