Petrochemical Industry
Petrochemical Applications
Oil drilling is very demanding because seals have to work under extreme conditions. If a seal fails, the resulting repairs and production stoppages are very costly.
Seals in drilling equipment can be exposed to harsh chemicals and gases — different hydrocarbons (including sulfonated ones), superheated steam, hydrogen sulfide (H₂S), carbon dioxide, methane, and amine-based corrosion inhibitors — plus very low or very high temperatures (below 0°C up to over 200°C) and high pressures.
To cope with so aggressive and diversified combinations the following features must be granted at the same time:
- chemical resistance
- outstanding physical properties
- elasticity in a wide range of temperatures
- resistance against explosive decompression (AED)


We have many years of experience fixing tough sealing problems in the Oil & Gas industry.
We’ve successfully provided sealing solutions for equipment such as:
Ball valves, gate valves, butterfly valves, regulating valves, plug valves, seat valves, check valves, metering valves, control valves
Valve actuators, blowout preventers (BOP), couplings for flexible pipes
Xmas trees, drill drives, marine cranes
anyseals offers a wide range of O-rings, rubber gaskets, and standard PTFE seals in sizes up to Ø 2300 mm (≈ 90 inches).
FKM, bisphenolic cured
Maximum thermal rating (+240°C), excellent resistance against hydrocarbons also aromatic, good physical properties, limited resistance to steam and H2S (max 2000 ppm). Special compounds for explosive decompression (AED).
FEPM, AFLAS®
Excellent thermal rating (+230°C),outstanding resistance against bases and H2S ( up to 30%), limited resistance to hydrocarbons and aromatic substances, limited low temperature flexibility. Special compounds for explosive decompression (AED).
HNBR
Maximum physical properties, good thermal rating (+160°C), good steam and H2S ( max 5000 ppm) resistance, limited resistance to aromatic hydrocarbons. Special compounds for explosive decompression (AED).