MidShire HydraFluid HV 46

Product Overview

MidShire HydraFluid HV 46 is a premium mineral hydraulic oil formulated with a high viscosity index additive package to maintain consistent viscosity across a wide range of operating temperatures. It is classified as an HV-type hydraulic fluid in accordance with DIN 51524 Part 3 and ISO 11158 HV.

The product is designed for hydraulic systems where ambient or operating temperatures vary significantly — particularly mobile plant, construction equipment, and agricultural machinery used outdoors in the UK climate.

Typical Applications

Mobile hydraulic systems on construction and earthmoving equipment
Agricultural machinery hydraulics including tractors and harvesting equipment
Stationary industrial hydraulic power packs and machine tool circuits
Hydraulic systems subject to wide ambient temperature variation
Vane, piston, and gear-type hydraulic pumps
Hydraulic systems requiring anti-wear (HV) performance classification

Key Features & Benefits

High viscosity index (HVI) — maintains film thickness across temperature extremes
Effective anti-wear additive package — protects pump components under high load
Good oxidation and thermal stability — supports longer drain intervals
Anti-foam and air release properties — prevents cavitation damage
Rust and corrosion inhibitors — protects ferrous and non-ferrous components
Good water separation (demulsibility) — maintains fluid cleanliness
Compatible with common seal materials including NBR and FKM

Technical Data

Product Name	MidShire HydraFluid HV 46
Product Type	Mineral Hydraulic Oil — HV Type
ISO Viscosity Grade	ISO VG 46
Kinematic Viscosity at 40°C	46 mm²/s (cSt)
Kinematic Viscosity at 100°C	7.8 mm²/s (cSt)
Viscosity Index	≥ 150
Density at 15°C	approx. 870 kg/m³
Pour Point	-33°C
Flash Point (COC)	> 220°C
Colour	Amber