A hydraulic hose can blow or burt for a number of reasons… wear and tear, pressure wtc. However when replacing the hose and fitting new hose fittings, or even if using new connectors on a hose repair, we suggest you follow the following steps when undertaking the repair task.

  1. Always clean the area where fitting and hose connections meet. As we discussed previously, dirt and contamination should be kept out of the plant at all costs.
  2. If any adaptors are required, now is a good time to use. Replace with new if necessary and always adhere to the manufacturer’s specifications for the correct amount of torque..06---Ensure-Fittings-are-Correct
  3. Lay the hose assembly into routing position to verify the hydraulic hose length.
  4. Thread the hydraulic hose assembly onto the hose adaptor. It might require fitting the hose assembly directly to the hose fitting at this stage, if it aids in the ease of positioning the joint correctly. Without twisting the hose, thread the other end08---Fitting-Prior-To-Crimping.
  5. Properly torque both ends – again, subject to the hose manufacturers or hose distributors guidelines. Check the measurement with a calipers to see if the measurement is within the same guidelines.06---Checking-Connection-With-Calipers
  6. Inspect the hose for any leaks by running the plant or machinery for a duration of time. Check the contacts between the hydraulic hose fittings and the hose itself are good. Ensure that there is no air in the system – as it will impair performance and possibly damage the plant. Here you see the damaged hydraulic hose and the process of making the replacement hydraulic hose, with the first stage complete.

For more information on hydraulic hose repair and maintenance, contact Hydra Seals Hose and Bearings Limited. Hydra Seals are distributors of premium hydraulic hose and industrial Hose. Hydra Seals are distributors for O+P Swaging Machines. Check out some of the swaging machines for hydraulic hose repair, that we stock. Article written by George Annan.

fire retardant hydraulic hose

Fire Retardant Hydraulic Seals & Hose

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.