At Fluorocarbon we are dedicated to the specification and manufacture of high-performance seals and bearings to suit your application requirements. Seals can be provided in PTFE and filled PTFE materials designed to give enhanced performance.
When sealing at elevated temperatures and pressures, the amount of clearance between the opposing piston and housing, behind the seal, becomes critical. This clearance is termed the extrusion gap.
High pressure, particularly in combination with elevated temperature, can cause the seal to extrude into the clearance and cause premature failure. Extrusion gaps should always be kept to a reasonable minimum, and should not exceed the recommended values.
By modifying the heel of the seal or incorporating anti-extrusion rings, as shown, larger extrusion gaps are acceptable.
The anti-extrusion ring is generally of a material with a higher flexural modulus like PEEK but can also be supplied in metals if required.
The seal can also be supplied with a profiled angled heel and a single angled anti-extrusion ring. This allows the anti-extrusion ring to float radially within the housing. This is particularly useful in applications where the applied pressure causes a swelling of the housing and is largely evident in large diameter welded valves and connectors.
To find out how we can support your projects contact info@fluorocarbon.co.uk
The objective of a rotary shaft seal is to prevent the leakage of oil, grease, and other fluids while also keeping environmental contaminants out. Nowhere is this more important than in the mining industry where vehicles and equipment are generally sealing oil but exposed to the environment.
The Wind Energy Industry continues to find new ways to increase the lifetime and reliability of wind turbines. As wind energy moves to larger, lighter-weight turbines located in harsh and remote locations, service life and reliability have grown increasingly more important.
Cryogenic sealing involving liquid nitrogen can be quite challenging, but certainly not impossible thanks to materials such as PCTFE that offer good thermal stability, good chemical resistance, very good physical properties.
Seals allow a mechanical assembly to both function freely whilst also retaining fluid, so a material that is flexible enough to assist with fluid retention and strong enough to withstand the wear load of the mating parts is essential.
Fluorocarbon are pleased to announce, we now have a larger capacity space for Machined components and Seals. Offering a comprehensive range of high performance plastic machining capabilities ranging from PTFE, PEEK, PFA, FEP and Nylons, to Ferrous and Non-Ferrous metals and other specialist materials.
Fluorocarbon’s Fluorinoid® PTFE materials are renowned for their chemical inertness to almost all known industrial chemicals and are suitable for continuous temperatures of up to 260ºC dependent on pressure. Limitations for use are restricted to the molten alkali materials, fluorine and strong fluorinating agents.
What is HPHT? (High Pressure, High Temperature)HPHT or High Pressure, High Temperature is defined as those Wells with a bottom hole temperature greater than 150°C (300°F) and requiring pressure control…
Fluorocarbon is a global supplier of high-performance fluid handling products such as seals and hoses, designed to meet the demanding applications of aerospace, automotive, energy, medical, and pharmaceutical (amongst others).