Petrochemical Applications
Exploring oil and gas and to follow the further processing is putting extreme demands onto the required sealing material. Huge downtime costs are the fee to be paid in case of breakdown or failure of a sealing element.
In oil drilling plants, depending on the different possible positions, one can find harsh mixtures of hydrocarbons even sulfonated, superheated steam, H2S, CO2, Methane, amine based corrosion inhibitors, temperatures well below 0°C and over 200°C, high pressure.

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 a long time experience in solving all kinds of difficult sealing problems inside the Oil & Gas sector.
We have with success made sealing solutions to following equipment this sector:
Ball valves - Gate valves - Butterfly valves - Regulating valves - Plug valves - Seat valves - Check valves - Metering valves - Control valves - Valve actuators – BOP - Couplings for flexible pipes - Xmas trees - Drill drives - Marine cranes.
mcm-ol seals has a wide range of O-Rings/ rubber gaskets and standard PTFE based seals in dimension up to ø 2.300 mm (ø 90”).
The following elastomers are of common use
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).
FKM, peroxide cured
Excellent thermal rating (+220°C), special grades for low temperatures, good resistance to bases, limited resistance to H2S. 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).
FFKM, evolast®
Outstanding thermal rating (+330°C), outstanding resistance towards aggressive chemicals, acids, organic and inorganic fluids, ketones, esters, solvents, amines, hot water and steam. 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).
Compounds for Petrochemical Applications
min. – max.
anti explosive decompression AED
ED Total Fina-Shell
NORSOK M710 (rapid gas decompression)
NORSOK M710 (sour fluid resistance)
EN 14141:2003 (fluid resistance)
NACE TM0187 (sour gas environment) 5% H2S
NACE TM0187 (sour gas environment) 20% H2S
API6A (sour gas environment) 10% H2S - [FF/HH]
API6A 10% H2S FFHH
Saudi Aramco 06-SAMSS-001 02.2017
Sour fluid test Arrhenius ISO 23936-2/NORSOK M710-3
low temperature
anti explosive decompression AED
NORSOK M710 (rapid gas decompression)
NACE TM0187 (sour gas environment) 5% H2S
SHELL
MESC SPE 85/301
API6A (sour gas environment) 10% H2S FFHH
oil/gas applications
anti explosive decompression AED
anti explosive decompression AED
anti explosive decompression AED
CONFORM TO DIN EN 682 (TAB.H)
BAM (150°C - 40bar Oxigen)
oil/gas applications
NORSOK M710 (rapid gas decompression)
NACE TM0297
NACE TM0187 (sour gas environment) 5% H2S
NACE TM0187 (sour gas environment) 20% H2S
TOTALFINA
SHELL
API6A (sour gas environment) 10% H2S
Saudi Aramco 06-SAMSS-001 02.2017
Sour fluid test Arrhenius ISO 23936-2/NORSOK M710-3
Life prediction & AED test – Arrhenius ISO 23936-2
oil/gas applications
excellent low temperature
oil/gas applications
low temperature
NORSOK M710 (rapid gas decompression)
ITN 84700/A (rapid gas decompression)
NACE TM0297
NACE TM0187 (sour gas environment) 5% H2S
NACE TM0187 (sour gas environment) 20% H2S
TOTALFINA
SHELL
Saudi Aramco 06-SAMSS-001 02.2017
Sour fluid test Arrhenius ISO 23936-2/NORSOK M710-3
Life prediction & AED test – Arrhenius ISO 23936-2
API6A 10H2S
API6A 10% H2S FFHH
MESC SPE 85/301
DIN EN 549/1995
DIN EN 682: 02/2002
high chemical resistance
high chemical resistance
anti explosive decompression AED
NORSOK M710 (rapid gas decompression)
NACE TM0187 (sour gas environment) 20% H2S
API6A (sour gas environment) 10% H2S
API6A 10% H2S [FF/HH]
Sour fluid test Arrhenius ISO 23936-2/NORSOK M710-3
Saudi Aramco 06-SAMSS-001
oil/gas applications
anti explosive decompression AED
API6A (sour gas environment) – 10% H2S - [FF/HH]
NORSOK M710 (rapid gas decompression)
Saudi Aramco 06-SAMSS-001 02.2017
Saudi Aramco 06-SAMSS-001 03.2013
high mechanical performance
anti explosive decompression AED
NORSOK M710 (rapid gas decompression)
NACE TM0187 (sour gas environment) 5% H2S
anti explosive decompression AED
NORSOK M710 (rapid gas decompression)
NACE TM0187 (sour gas environment) 5% H2S
NACE TM0187 (sour gas environment) 20% H2S
API6A (sour gas environment) 10% H2S
API6A 10% H2S FFHH
Sour fluid test Arrhenius ISO 23936-2/NORSOK M710-3
anti explosive decompression AED
NORSOK M710 (rapid gas decompression)
NACE TM0187 (sour gas environment) 5% H2S
NACE TM0187 (sour gas environment) 20% H2S
API6A (sour gas environment) – 10% H2S - [FF/HH]
Sour fluid test Arrhenius ISO 23936-2/NORSOK M710-3
Life prediction & AED test – Arrhenius ISO 23936-2
Saudi Aramco 06-SAMSS-001 02.2017
oil/gas applications
anti explosive decompression AED
BS EN ISO 23936-2
oil/gas applications
low temperature
oil/gas applications
low temperature
anti explosive decompression AED
high chemical resistance
high chemical resistance
anti explosive decompression AED
oil/gas applications
anti explosive decompression AED
high mechanical performance
anti explosive decompression AED
anti explosive decompression AED
chemical resistance
NORSOK M710
NACE TM0187 (sour gas environment) 20% H2S
API6A (sour gas environment) 10% H2S
Sour fluid test Arrhenius ISO 23936-2/NORSOK M710-3
NORSOK M710
high temperature
chemical resistance
NORSOK M710
excellent low temperature
chemical resistance
On request available for other products.