Cold cylinder start-up hydraulic seal testing is the latest in Hallite’s third-party validation for the integrity of its sealing materials and designs. After successful completion of a new test method in 2015 for assessing the amount of dirt and dust that enters a typical hydraulic system through the rod wiper, Hallite Seals decided to continue … [Read more...]
Trelleborg releases new rotary seal for high-pressure oil and gas applications
Trelleborg Sealing Solutions announces the launch of the new polytetrafluoroethylene (PTFE) based O-ring energized single-acting rotary seal, Turcon Roto Glyd Ring DXL. This seal is specifically designed to meet the demands of high-pressure rotary applications within the oil and gas industry. The Turcon Roto Glyd Ring DXL provides improved … [Read more...]
O-ring selection made easy
Parker Hannifin's O-Ring Selector is an engineering tool which offers O-ring material and size selection combined in one software package. Both are interlinked, thus helping ensure the best possible combination of the calculated O-ring size and material choice. The O-Ring Selector covers both imperial and metric standards. The program lets … [Read more...]
What types of seals are used in hydraulic cylinders?
Hydraulic cylinders are used to perform work in a bevy of different situations and applications every day. Whether it’s the plow truck clearing the road, a utility vehicle fixing an electrical issue, or a compactor at the local recycling center—hydraulic cylinders are in motion almost everywhere. With hydraulic cylinders, there is more than … [Read more...]
What’s the difference between single acting and double acting piston seals?
Piston seals or piston rings are used in hydraulic cylinders for fluid sealing. They are designed to ensure that pressurized fluid does not leak across the cylinder head as the system pressure pushes the piston down the cylinder bore. There are two main types of hydraulic cylinder piston seals—single-acting and double-acting. Single-acting … [Read more...]
Hydraulic seals battle extreme cold
Low-temperature chemistry and innovative hydraulic seal designs prevent weeps and leaks. By Ryan Webster, Hallite Seals Americas and Mark Haggerty, Hallite Seals Canada Equipment used in industries like construction, transportation, forestry, agriculture, mining and mineral extraction requires hydraulic seals fit for extreme temperatures. … [Read more...]
Trelleborg expands HiMod Slydring wear ring range for hydraulic cylinders
Trelleborg Sealing Solutions has expanded its HiMod Slydring HC wear ring range. It is introducing more than 180 additional part numbers in outer diameters from 1 to 12 in. The enhanced range becomes available early 2018, serving various fluid power applications including off-highway, material handling, industrial machines, mobile hydraulics, … [Read more...]
5 factors to consider when designing FDA seals for food contact
When considering seal design for FDA seals, specifically for food contact, there are 5 factors that must be considered: 1. Operating conditions This might sound obvious, but a seal designer may focus on different concerns than you would with regard to the operating conditions. Too often a seal designer is asked to focus on one particular … [Read more...]
Trelleborg finalizes acquisition of advanced composites manufacturer
Trelleborg, a worldwide provider of engineered polymer components and systems, has through its business area Trelleborg Sealing Solutions fully acquired U.S.-based privately-owned Automated Dynamics, an advanced composite components manufacturer. According to Trelleborg officials, the “bolt-on” acquisition provides new, strategic technology to … [Read more...]
High-tech compounds against explosive decompression
Sealing compounds used in the applications above often create a barrier against gaseous media if highly pressurized gas falls to a very low-pressure level within a very short period of time. The result of this process is often a damage of the sealing. The elastomer material is either torn in various places or blistering on the surface. This process … [Read more...]
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