Anvol WG 46
HFC water-glycolWater-glycol fluid, ISO VG 46, rated to 200 bar. Castrol specifies it for foundries and steel mills; also used in die-casting and glass-industry hydraulics.
When a hydraulic leak near a hot surface could end in fire, conventional HLP is not enough. Anvol delivers ISO 15029 ignition resistance without compromising pump life.
Castrol Anvol WG 46 (water-glycol, ISO 12922 HFC) and Anvol SWX 46 (polyolester, ISO 12922 HFDU) fire-resistant hydraulic fluids for foundries, steel mills, glass plants, granite quarries and coal-handling applications where conventional mineral hydraulic oil presents fire risk. WG 46 is rated to 200 bar and is the grade Castrol specifies for foundry and steel-mill service. SWX 46 is water-free, rated to 500 bar, and fulfils the requirements of Factory Mutual Category 1.
Water-glycol fluid, ISO VG 46, rated to 200 bar. Castrol specifies it for foundries and steel mills; also used in die-casting and glass-industry hydraulics.
Water-free polyolester, ISO VG 46, viscosity index 180, rated to 500 bar. Fulfils the requirements of Factory Mutual Category 1. The replacement for Anvol PE, no longer part of Castrol's India industrial range, in high-pressure service.
As the authorised Castrol industrial distributor for Andhra Pradesh, every drum and pail we supply is sourced directly from Castrol India’s Silvassa, Paharpur and Patalganga plants with full batch traceability. Our Bhimavaram warehouse stocks the complete fire-resistant hydraulic fluids range for scheduled dispatch across AP, and our technical team is available on-site for application trials, coolant sampling, and training. Paired with our CoolantCare fluid management programme, you get not just a supplier but a lubrication partner committed to lowering your total cost of lubrication.
Anvol WG 46 (water-glycol, HFC) is the more widely used choice and Castrol rates it to 200 bar. The water-free HFDU type, Anvol SWX 46, is what Castrol rates above 200 bar and where a water-containing fluid is unacceptable.
Partially. A water-glycol will not carry the same load as a mineral oil, so pumps usually have to be de-rated — take that figure from the pump OEM rather than a rule of thumb. Seal and hose materials must be confirmed against the Anvol WG 46 product data sheet before changeover, not assumed. The flushing protocol is strict: residual mineral oil causes phase separation, so drain and flush rather than top up.
Share your application details and tank/bearing sizes — we will respond with a tailored recommendation and pricing within 24 hours.
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