Shell Fire-Resistant Hydraulic Fluid S1 DU

Deliver peak performance

Hydraulic and fluid transmission systems in exposed environments are subject to wide variations in temperature. The naturally high-viscosity index of Shell Fire-Resistant Hydraulic Fluid S1 DU helps to deliver responsive performance from cold start to full-load heavy-duty operations. Its high viscosity index and shear stability provide consistent viscosity where wide variance in ambient conditions is common.

• The low temperature performance properties enable responsive performance from cold stat to full load heavily duty operations.
• A high viscosity index in combination with robust shear stability provides durability at higher operating temperatures.
• In addition to protecting the machine over a wide temperature operating range, shear-stable, high viscosity index fluids enable increased hydraulic efficiency.

Helping reduce the impact of leaks and spills

Hydraulic systems operating in demanding environments require fluids that deliver reliable equipment protection while helping to reduce the persistence of leaks or accidental spills.

Shell Fire-Resistant Hydraulic Fluid S1 DU is engineered for use across a wide range of industrial applications. Compared with conventional mineral oil-based hydraulic fluids, it has been formulated using components assessed against readily biodegradable criteria (OECD 301 series) and evaluated for a lower level of aquatic environmental impact, including reduced environmental persistence.

Key features include:

• At least 98% by mass of Shell Fire-Resistant Hydraulic Fluid S1 DU 46 consists of components assessed as readily biodegradable, with a result of ≥60% biodegradation in the OECD 301B test.
• Certified as a USDA Certified Biobased Product under the USDA BioPreferred® Program.
• High flash point, fire point and auto-ignition temperature, helping to reduce fire risk.
• FM Approved as a fire-resistant industrial hydraulic fluid for use in high-pressure systems where fire hazards are a concern.

Lower operating costs and reducing downtime

Shell Fire-Resistant Hydraulic Fluid S1 DU provides anti-wear and film strength properties necessary for hydraulic systems under moderate to severe conditions.

• Shell Fire-Resistant Hydraulic Fluid S1 DU has lower wear compared with the Eaton Vickers V104C pump test limit (ASTM D 7043) and provides better wear protection than industry standards and mainstream mineral oil hydraulic fluids.
• Excellent anti-wear protection demonstrated in vane pump tests (ASTM D7043) can help achieve lower maintenance costs and less downtime.

Improving Air release - Air in the oil can lead to undesirable consequences such as reduced efficiency and responsiveness and increased likelihood of erosion, cavitation or other harmful system issues that can cause unplanned downtime and increased maintenance costs.

• Shell Fire-Resistant Hydraulic Fluid S1 DU exceeds equipment manufacturers’ air release limits.

Designing fire-resistant hydraulic fluids with reduce wear protection and improved air release helps to extend the life of components and service life of your equipment. It improves the efficiency of your hydraulic systems and keeps them running for longer.

¹ _{At least 97% by mass of  Shell Fire Resistant S3 DU 46 components are readily biodegradable, achieving a passing result of ≥60% according to OECD 301B.}