Seals Eastern, Inc.

Seals, Gaskets, Packer Elements, and O-rings for Sour Gas, H2S, and amine corrosion inhibitors.

Tel: 732-747-9200
info@SealsEastern.com

7182 brand formulated Aflas seals Sour Gas, Hydrogen Sulfide, and amine corrosion inhibitors.

Seals Eastern's 7182 brand formulated Aflas provides outstanding resistance to sour gas, as well as high concentrations of hydrogen sulfide, also known as H2S. H2S resistant seals, packers, and o-rings Equally important, 7182 Aflas withstands the amine inhibitors used to mitigate corrosion in the presence of H2S. Whereas most rubber seals will experience excessive hardening and subsequent failure in low concentrations (ppm) of hydrogen sulfide, 7182 brand Aflas exhibits outstanding resistance to concentrations of in excess of 60%. The following data compiled by MERL Ltd, a third party testing lab, illustrates the robustness of 7182 brand Aflas in high concentrations of H2S, even at elevated temperatures (200°C).

7182B (90 Shore-A) formulated Aflas:
Time (days) 50% Modulus % Chg 100 % Modulus % Chg Tensile % Chg Elongation % Chg
Baseline 12.7 MPa NA 19.9 MPa NA 20.8 MPa NA 109% NA
  - aged in 16% H2S @ 150°C
Time (days) 50% Modulus % Chg 100 % Modulus % Chg Tensile % Chg Elongation % Chg
7.7 days 12.1 MPa -5% 17.9 MPa -11% 20.9 MPa 0% 124 % +12%
  - aged in 64% H2S @ 150°C
Time (days) 50% Modulus % Chg 100 % Modulus % Chg Tensile % Chg Elongation % Chg
7.7 days 9.6 MPa -32% 13.6 MPa -46% 16.6 MPa -25% 133% +18%
  - aged in 16% H2S @ 200°C
Time (days) 50% Modulus % Chg 100 % Modulus % Chg Tensile % Chg Elongation % Chg
7.7 days 11.0 MPa -15% 15.2 MPa -31% 18.7 MPa -11% 13% +19%
  - aged in 64% H2S @ 200°C
Time (days) 50% Modulus % Chg 100 % Modulus % Chg Tensile % Chg Elongation % Chg
8.4 days 12.1 MPa -5% 17.9 MPa -11% 20.9 MPa 0% 124% +12%

7182D (80 Shore-A) formulated Aflas
Time (days) 50% Modulus % Chg 100 % Modulus % Chg Tensile % Chg Elongation % Chg
Baseline 6.1 MPa NA 11.1 MPa NA 21.6 MPa NA 198% NA
  - aged in 16% H2S @ 150°C
Time (days) 50% Modulus % Chg 100 % Modulus % Chg Tensile % Chg Elongation % Chg
7.7 days 5.4 MPa -13% 9.8 MPa -13% 18.9 MPa -14% 198 % 0%
  - aged in 64% H2S @ 150°C
Time (days) 50% Modulus % Chg 100 % Modulus % Chg Tensile % Chg Elongation % Chg
7.7 days 3.8 MPa -61% 7.3 MPa -52% 18.8 MPa -15% 247% +20%
  - aged in 16% H2S @ 200°C
Time (days) 50% Modulus % Chg 100 % Modulus % Chg Tensile % Chg Elongation % Chg
7.7 days 5.1 MPa -20% 9.4 MPa -18% 22.7 MPa -5% 250% 21%
  - aged in 64% H2S @ 200°C
Time (days) 50% Modulus % Chg 100 % Modulus % Chg Tensile % Chg Elongation % Chg
8.4 days 4.4 MPa -39% 8.0 MPa -39% 20.2 MPa -7% 264% 25%

Seals Easterns 7182™ series formulated Aflas

Seals Easter 7182 Aflas seals have set industry standards for the highest level of Aflas performance in oilfield, chemical processing, and steam applications.

Ref# Duro Description
7182D 80 General high temperature chemical resistant service.
7182B 90 High temperature, high pressure service. ED resistant. 
7182A 95 High temperature, high pressure service. ED resistant. 
7182X 80 Ultra-low compression set for use in aqueous and non-aqueous fluids.

Technical Papers Available

Elastomers in the Hot Sour Gas Environment
Sour Hydrocarbons - The Elastomer Challenge
Sealing High Pressures under Sour Conditions

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