Fire Retardant Hydraulic Seals & Hose
The ISO has identified and classified 4 types of hydraulic fluids. This article touches on the importance of using fire retardant hydraulic seals.
There are several water based hydraulic fluids and most of them are used in the oil, mining, gas and construction industries. Most of these environments are hazardous, due to the volatile nature of the material or materials being mined/drilled for. As a result, the ISO has classified and set guidelines for the use of fire retardant hydraulic hose & seals, and the use of such materials. They are known as HFC, HFAE, HFAS and HFB.
According to an article on they state the ISO classification as
- “HFAE, which includes oil-in-water emulsions, typically with more than 80% water content;
- HFAS, which are synthetic aqueous fluids, typically containing more than 80% water;
- HFB, which are water-in-oil emulsions typically containing more than 40% water; and
- HFC (also known as glycol solutions, polyalkylene glycol solutions, and water glycols), which include water polymer solutions, typically containing more than 35% water”
HFC fuilds are the most commonly used fire resistant fluids in the world. We have found a really good article over at hydraulicspheumatics.com, and they a have a printable pdf document for your reading pleasure. We really recommend you have a read.
Hydra Seals are stockists of not high quality hydraulic seals and oils seals, but also a wide range of hydraulic hose. If you require fire retardant seals or hose, please contact us first with the specification of your requirement, we may be able to help you. Contact us here or over the phone at +353 1 8612700.