Mobil Rarus PE KPL 220

Standards & approvals

• NSF H1

  NSF H1 — incidental food contact lubricant

  NSF registration for lubricants with incidental food contact, formulated only from permitted substances.

• FDA 21 CFR 178.3570

  FDA 21 CFR 178.3570 — lubricants with incidental food contact

  The article of the US regulation listing the substances permitted in lubricants with incidental food contact; the legal basis of an NSF H1 registration.

Specifications

Brand

Mobil (ExxonMobil)

Range

Mobil Rarus

Category

Compressor oils

Viscosity

ISO VG 220

Manufacturer code

201560204560

Availability

On request

Typical characteristics

Manufacturer's description

Mobil Rarus PE KPL 220 is an ISO VG 220 ethylene and co-monomer compressor oil based on a patented combination of high-purity, saturated hydrocarbon oils supplemented with friction-reducing and free-radical trap additives at adapted treat levels. It is specifically designed for the lubrication of very high-pressure ethylene and co-monomer hyper compressors, usable up to 3800 bar depending on the oil injection system and temperature, with viscosity and composition tailored for the highest pressures found in ethylene compressors for LDPE production. The oil keeps viscosity increase under extreme pressure low enough to ensure adequate lubricant flow, while its additives prevent early polymerisation of reactive gas components and impurities inside the compressor, which could otherwise cause deposits and lubrication failure. It also mitigates friction losses and can improve cylinder packing life, reducing the frequency of maintenance shutdowns. Its low-reactivity, high-purity, low-polarity components do not interfere with polymerisation reactions and avoid discoloration or odour in the finished polymer, making the oil suitable for polymers used in food packaging and electrical insulation applications. Mobil Rarus PE KPL 220 is registered to NSF H1 and meets or exceeds FDA 21 CFR 178.3570 and Burckhardt VSB 1001180, including Burckhardt Pumpability certificates for hyper compressors up to 3850 bar and 3896 bar at a minimum temperature of 70°C. Typical properties include ISO VG 220 grade, kinematic viscosity of 210 mm²/s at 40°C, flash point of 270°C, pour point of -12°C, and total acid number of 0.5 mg KOH/g.

Applications

• Lubrication of very high-pressure ethylene and co-monomer compressors, usable up to 3,800 bar depending on the oil-injection system and temperature.
• The most demanding applications: viscosity and composition are tailored for the highest pressures found in ethylene compressors for LDPE production.
• Meets or exceeds the Burckhardt pumpability certificate for hyper-compressors at pressures up to 3,850 bar, at a minimum temperature of 70°C and a pump speed of 164 rpm.
• Meets or exceeds the Burckhardt pumpability certificate for hyper-compressors at pressures up to 3,896 bar, at a minimum temperature of 70°C and a pump speed of 250 rpm.

Performance & benefits

• The viscosity increase under the highest pressures remains low enough to ensure an adequate flow of lubricating oil, and additives prevent early polymerisation of reactive gas components and impurities inside the compressor, avoiding deposit formation and lubrication failure; additives also reduce friction losses and can improve cylinder-packing life, leading to less frequent maintenance shutdowns.
• Low-reactivity components do not interfere with polymerisation reactions.
• High-purity components do not cause discolouration or odour in the final polymer.
• Components approved for food contact, suitable for manufacturing polymers for food-packaging containers.
• Low polarity, suitable for manufacturing polymers for electrical insulation and thin sheets (plastic bags).
• High pumpability gives adequate flow of lubricating oil and improved cylinder lubrication at very high pressure.
• Outstanding anti-wear and corrosion protection enhances equipment life and performance.

Fits

• Compressors & pumps