Plastic Reservoir — PP Tank for Lubrication Pumps
IsoHiTech plastic lubrication reservoirs are molded polypropylene (PP) tanks for compact centralized lubrication—integral bodies on hand pumps, small electric grease units, and bench-top oil dispensers. PP resists many lubricating oils and greases, keeps weight low, and fits tight machine enclosures where a cast aluminum tank is oversized.
Material: PP. Capacities: 1 kg, 2 kg, 3 kg, 4 kg fill class (confirm net volume on pump drawing). No MOQ on standard sizes. Use with filtered fill, breather cap, and optional level sight for reliable long-hour production runs.
Related: hand grease pump, SK-505, hand oil pump, single-line systems, lubrication tubing.
| Item | Typical |
|---|---|
| Material | Polypropylene (PP) |
| Capacities | 1 / 2 / 3 / 4 kg class |
| Service | Grease or oil lubrication pumps |
| MOQ | None on standard sizes |
- Lubrication System Used
Filtered Centralized Systems
Mount reservoir upstream of pump suction with fill strainer or inline filter on refill path. PP reduces rust chips vs steel tins; still wipe filler port and use clean NLGI grease to protect injectors and metering pistons.
Oil Recirculation & PDI Loops
Low-profile PP tanks suit oil recirculation skids and PDI single-line oil packages where oil returns are filtered and reheated. Confirm chemical compatibility with additive package and max 110°C service on drawing.
Self-Contained Pump Packages
Plastic tank + valve + meter on one bracket is common on packaging lines and CNC cell lubrication. PP tank keeps package mass low for door-mounted installs.
PP Material & Lubrication Chemistry
High-quality polypropylene offers broad compatibility with mineral lubricating oils and common lithium/complex greases used in centralized systems. It is not a universal chemical tank—avoid strong solvents, undiluted acids, or aromatics that can craze PP. For aggressive wash-down plants, specify cover shield or move to aluminum reservoir on higher-pressure electric pumps.
Accessories & Safety Features
- Level indicator — visual rod or float switch pocket on cover
- Relief / breather — prevent vacuum lock on fast pump-down
- Fill strainer — coarse mesh at filler neck
- Ground strap — where static discharge is a plant rule on oil mist areas
- Over-fill guard — mechanical stop or marked max line on sight tube
Temperature & Environment
Typical PP lubrication tanks operate from -40°C to +110°C ambient/fluid class per resin grade—verify on datasheet for your oil viscosity at cold start. UV exposure: outdoor installs need shade, cover, or UV-stabilized resin option; long UV can embrittle unstabilized PP.
Plastic vs Aluminum Reservoir
| Factor | Plastic PP | Cast aluminum |
|---|---|---|
| Size range | 1–4 kg | 3–25 kg |
| Pump pairing | Hand / compact electric | P215, 20703, large skids |
| Cost & weight | Lower mass, economical | Stiffer, higher pressure class |
| Outdoor UV | Shield or UV resin | Paint / anodize |
When Not to Use Plastic
- Continuous 350 bar header tied to tank wall (use metal reservoir)
- Direct flame or sustained >110°C oil without special resin
- Unknown chemical splash from non-lubricant processes
Download catalogue via page ebook link; send pump model for port thread and tank clip drawing.
A polypropylene tank that stores grease or oil for a centralized or hand pump—integral to the pump package or mounted on a skid. It is for industrial lubrication, not general water or fuel storage.
Standard 1, 2, 3, and 4 kg fill classes. Custom PP tanks quoted with pump interface drawing.
Lower cost and weight, good chemical resistance to common lube oils/greases, and easy molding for compact pump bodies. Metal tanks suit larger pressure and volume.
UV degradation if exposed outdoors without protection; temperature ceiling below many metal tanks; and chemical attack from non-lubricant fluids. Not for high-pressure header stiffening like large aluminum castings.
Level sight, breather, fill strainer, low-level switch boss, and anti-static strap per plant standards.
No MOQ on standard 1–4 kg sizes listed on this page.