Log-InSearchContactLanguage Leader in Sealing & Flow Control Technology Menu Home / RELIABLE EXPANDER SEALS. PULL TYPE PLUGS AND PUSH TYPE BALL EXPANSION PLUGS RELIABLE EXPANDER SEALS. PULL TYPE PLUGS AND PUSH TYPE BALL EXPANSION PLUGS As a leading sealing and flow control manufacturer, SFC KOENIG® is built on core quality objectives that have not changed since the original company was founded in 1927: designing, manufacturing, integrating and supporting high-quality expander seals – offering both pull type and push-type ball expansion plugs – as well as flow control products. The SFC KOENIG product line of metal-to-metal seal solutions provides industry-leading reliability in an easy-to-install, one-piece package. With over 5 billion parts installed and failure rates less than 1 PPM, customers around the world rely on us for precision sealing applications. Learn more about our push-style KOENIG EXPANDER® and pull-style KOENIG EXPANDER® designs or click on the seal expander model below for quick access to sealing solution specifications. Use our Product Selector to quickly identify the best standard expander seal model for your application, with options to sort by pull type plugs and ball expansion plugs, pressures, sizes and more. SFC KOENIG is continually improving and refining its Sealing & Flow Control product portfolio. In case you are looking for technical information about a legacy product please go here or contact us for support. Push Type Pull Type All Sealing Products Series MB Series CV Series SK / SKC Series LK Installation Tools SERIES MB 600 Sleeve: Stainless steel Ball: Stainless steel Pressure to max. 450 bar Size: From ∅ 3.0 to 14.0 mm > Read More SERIES MB 600 INCH Sleeve: Stainless steel Ball: Stainless steel Pressure to max. 450 bar Size: From ∅ 0.093 to 0.281 inch > Read More SERIES MB 700 Sleeve: Stainless steel Ball: Bearing steel Pressure to max. 450 bar Size: From ∅ 3.0 to 22.0 mm > Read More SERIES MB 850 Sleeve: Case hardened steel zinc plate Ball: Bearing steel Pressure to max. 350 bar Size: From ∅ 3.0 to 22.0 mm > Read More CONTACT US SELECT BRANCH TO CONTACT NORTH AND SOUTH AMERICA SWITZERLAND GERMANY CHINA == OR CHOOSE A COUNTRY OR A REGION == ALBANIA ALGERIA AMERICAN SAMOA ANDORRA ANGOLA ANTIGUA AND BARBUDA ARGENTINA ARMENIA AUSTRALIA AUSTRIA AZERBAIJAN BAHAMAS BAHRAIN BANGLADESH BARBADOS BELGIUM BELIZE BENIN BERMUDA BHUTAN BOLIVIA BOSNIA AND HERZEGOVINA BOTSWANA BRAZIL BRUNEI BULGARIA BURKINA FASO BURUNDI CAMBODIA CAMEROON CANADA CAPE VERDE CAYMAN ISLANDS CHAD CHILE CHINA COLOMBIA COMOROS COSTA RICA CROATIA CURAÇAO CZECH REPUBLIC DENMARK DJIBOUTI DOMINICA DOMINICAN REPUBLIC EAST TIMOR ECUADOR EGYPT EL SALVADOR EQUATORIAL GUINEA ESTONIA ETHIOPIA FAROE ISLANDS FIJI FINLAND FRANCE FRENCH POLYNESIA GABON GAMBIA GEORGIA GERMANY GHANA GREECE GREENLAND GRENADA GUAM GUATEMALA GUINEA GUINEA-BISSAU GUYANA HONDURAS HONG KONG HUNGARY ICELAND INDIA INDONESIA IRELAND ISRAEL ITALY JAMAICA JAPAN JORDAN KAZAKHSTAN KENYA KIRIBATI KOSOVO KUWAIT KYRGYZSTAN LAOS LATVIA LESOTHO LIECHTENSTEIN LITHUANIA LUXEMBOURG MACEDONIA MADAGASCAR MALAWI MALAYSIA MALDIVES MALI MALTA MARSHALL ISLANDS MAURITANIA MAURITIUS MEXICO MICRONESIA MOLDOVA MONACO MONGOLIA MONTENEGRO MOROCCO MOZAMBIQUE NAMIBIA NAURU NEPAL NETHERLANDS NEW ZEALAND NICARAGUA NIGER NIGERIA NORTHERN MARIANA ISLANDS NORWAY OMAN PAKISTAN PALAU PALESTINE, STATE OF PANAMA PAPUA NEW GUINEA PARAGUAY PERU PHILIPPINES POLAND PORTUGAL PUERTO RICO QATAR ROMANIA RWANDA SAINT KITTS AND NEVIS SAINT LUCIA SAINT MARTIN SAINT VINCENT AND THE GRENADINES SAMOA SAN MARINO SAO TOME AND PRINCIPE SAUDI ARABIA SENEGAL SERBIA SEYCHELLES SIERRA LEONE SINGAPORE SINT MAARTEN SLOVAKIA SLOVENIA SOLOMON ISLANDS SOUTH AFRICA SOUTH KOREA SPAIN SURINAME SWAZILAND SWEDEN SWITZERLAND TAIWAN TAJIKISTAN TANZANIA THAILAND TOGO TONGA TRINIDAD AND TOBAGO TUNISIA TURKEY TURKMENISTAN TUVALU UGANDA UNITED ARAB EMIRATES UNITED KINGDOM UNITED STATES URUGUAY UZBEKISTAN VANUATU VATICAN CITY VIRGIN ISLANDS, BRITISH VIRGIN ISLANDS, U.S. ZAMBIA Customized for Your Application Since 1927 SFC KOENIG has provided unrivaled solutions that surpass performance and reliability expectations. Learn more about our: Engineering Support Customized Components Installation Solutions Technical Information KOENIG EXPANDER Plugs vs. Cup Plug Seals KOENIG EXPANDER Plugs vs. SAE Plugs Metal-to-Metal Seals for Automotive Applications GET THE FULL SFC KOENIG CATALOG Request a Copy SIGN UP FOR OUR NEWSLETTER Get the latest news and insights on sealing and flow control. Currently available for contacts in The United States and Canada. SELECT YOUR COUNTY OR REGION UNITED STATES CANADA (NOT AVAILABLE) ALBANIA (NOT AVAILABLE) ALGERIA (NOT AVAILABLE) AMERICAN SAMOA (NOT AVAILABLE) ANDORRA (NOT AVAILABLE) ANGOLA (NOT AVAILABLE) ANTIGUA AND BARBUDA (NOT AVAILABLE) ARGENTINA (NOT AVAILABLE) ARMENIA (NOT AVAILABLE) AUSTRALIA (NOT AVAILABLE) AUSTRIA (NOT AVAILABLE) AZERBAIJAN (NOT AVAILABLE) BAHAMAS (NOT AVAILABLE) BAHRAIN (NOT AVAILABLE) BANGLADESH (NOT AVAILABLE) BARBADOS (NOT AVAILABLE) BELGIUM (NOT AVAILABLE) BELIZE (NOT AVAILABLE) BENIN (NOT AVAILABLE) BERMUDA (NOT AVAILABLE) BHUTAN (NOT AVAILABLE) BOLIVIA (NOT AVAILABLE) BOSNIA AND HERZEGOVINA (NOT AVAILABLE) BOTSWANA (NOT AVAILABLE) BRAZIL (NOT AVAILABLE) BRUNEI (NOT AVAILABLE) BULGARIA (NOT AVAILABLE) BURKINA FASO (NOT AVAILABLE) BURUNDI (NOT AVAILABLE) CAMBODIA (NOT AVAILABLE) CAMEROON (NOT AVAILABLE) CAPE VERDE (NOT AVAILABLE) CAYMAN ISLANDS (NOT AVAILABLE) CHAD (NOT AVAILABLE) CHILE (NOT AVAILABLE) CHINA (NOT AVAILABLE) COLOMBIA (NOT AVAILABLE) COMOROS (NOT AVAILABLE) COSTA RICA (NOT AVAILABLE) CROATIA (NOT AVAILABLE) CURAÇAO (NOT AVAILABLE) CZECH REPUBLIC (NOT AVAILABLE) DENMARK (NOT AVAILABLE) DJIBOUTI (NOT AVAILABLE) DOMINICA (NOT AVAILABLE) DOMINICAN REPUBLIC (NOT AVAILABLE) EAST TIMOR (NOT AVAILABLE) ECUADOR (NOT AVAILABLE) EGYPT (NOT AVAILABLE) EL SALVADOR (NOT AVAILABLE) EQUATORIAL GUINEA (NOT AVAILABLE) ESTONIA (NOT AVAILABLE) ETHIOPIA (NOT AVAILABLE) FAROE ISLANDS (NOT AVAILABLE) FIJI (NOT AVAILABLE) FINLAND (NOT AVAILABLE) FRANCE (NOT AVAILABLE) FRENCH POLYNESIA (NOT AVAILABLE) GABON (NOT AVAILABLE) GAMBIA (NOT AVAILABLE) GEORGIA (NOT AVAILABLE) GERMANY (NOT AVAILABLE) GHANA (NOT AVAILABLE) GREECE (NOT AVAILABLE) GREENLAND (NOT AVAILABLE) GRENADA (NOT AVAILABLE) GUAM (NOT AVAILABLE) GUATEMALA (NOT AVAILABLE) GUINEA (NOT AVAILABLE) GUINEA-BISSAU (NOT AVAILABLE) GUYANA (NOT AVAILABLE) HONDURAS (NOT AVAILABLE) HONG KONG (NOT AVAILABLE) HUNGARY (NOT AVAILABLE) ICELAND (NOT AVAILABLE) INDIA (NOT AVAILABLE) INDONESIA (NOT AVAILABLE) IRELAND (NOT AVAILABLE) ISRAEL (NOT AVAILABLE) ITALY (NOT AVAILABLE) JAMAICA (NOT AVAILABLE) JAPAN (NOT AVAILABLE) JORDAN (NOT AVAILABLE) KAZAKHSTAN (NOT AVAILABLE) KENYA (NOT AVAILABLE) KIRIBATI (NOT AVAILABLE) KOSOVO (NOT AVAILABLE) KUWAIT (NOT AVAILABLE) KYRGYZSTAN (NOT AVAILABLE) LAOS (NOT AVAILABLE) LATVIA (NOT AVAILABLE) LESOTHO (NOT AVAILABLE) LIECHTENSTEIN (NOT AVAILABLE) LITHUANIA (NOT AVAILABLE) LUXEMBOURG (NOT AVAILABLE) MACEDONIA (NOT AVAILABLE) MADAGASCAR (NOT AVAILABLE) MALAWI (NOT AVAILABLE) MALAYSIA (NOT AVAILABLE) MALDIVES (NOT AVAILABLE) MALI (NOT AVAILABLE) MALTA (NOT AVAILABLE) MARSHALL ISLANDS (NOT AVAILABLE) MAURITANIA (NOT AVAILABLE) MAURITIUS (NOT AVAILABLE) MEXICO (NOT AVAILABLE) MICRONESIA (NOT AVAILABLE) MOLDOVA (NOT AVAILABLE) MONACO (NOT AVAILABLE) MONGOLIA (NOT AVAILABLE) MONTENEGRO (NOT AVAILABLE) MOROCCO (NOT AVAILABLE) MOZAMBIQUE (NOT AVAILABLE) NAMIBIA (NOT AVAILABLE) NAURU (NOT AVAILABLE) NEPAL (NOT AVAILABLE) NETHERLANDS (NOT AVAILABLE) NEW ZEALAND (NOT AVAILABLE) NICARAGUA (NOT AVAILABLE) NIGER (NOT AVAILABLE) NIGERIA (NOT AVAILABLE) NORTHERN MARIANA ISLANDS (NOT AVAILABLE) NORWAY (NOT AVAILABLE) OMAN (NOT AVAILABLE) PAKISTAN (NOT AVAILABLE) PALAU (NOT AVAILABLE) PALESTINE, STATE OF (NOT AVAILABLE) PANAMA (NOT AVAILABLE) PAPUA NEW GUINEA (NOT AVAILABLE) PARAGUAY (NOT AVAILABLE) PERU (NOT AVAILABLE) PHILIPPINES (NOT AVAILABLE) POLAND (NOT AVAILABLE) PORTUGAL (NOT AVAILABLE) PUERTO RICO (NOT AVAILABLE) QATAR (NOT AVAILABLE) ROMANIA (NOT AVAILABLE) RWANDA (NOT AVAILABLE) SAINT KITTS AND NEVIS (NOT AVAILABLE) SAINT LUCIA (NOT AVAILABLE) SAINT MARTIN (NOT AVAILABLE) SAINT VINCENT AND THE GRENADINES (NOT AVAILABLE) SAMOA (NOT AVAILABLE) SAN MARINO (NOT AVAILABLE) SAO TOME AND PRINCIPE (NOT AVAILABLE) SAUDI ARABIA (NOT AVAILABLE) SENEGAL (NOT AVAILABLE) SERBIA (NOT AVAILABLE) SEYCHELLES (NOT AVAILABLE) SIERRA LEONE (NOT AVAILABLE) SINGAPORE (NOT AVAILABLE) SINT MAARTEN (NOT AVAILABLE) SLOVAKIA (NOT AVAILABLE) SLOVENIA (NOT AVAILABLE) SOLOMON ISLANDS (NOT AVAILABLE) SOUTH AFRICA (NOT AVAILABLE) SOUTH KOREA (NOT AVAILABLE) SPAIN (NOT AVAILABLE) SURINAME (NOT AVAILABLE) SWAZILAND (NOT AVAILABLE) SWEDEN (NOT AVAILABLE) SWITZERLAND (NOT AVAILABLE) TAIWAN (NOT AVAILABLE) TAJIKISTAN (NOT AVAILABLE) TANZANIA (NOT AVAILABLE) THAILAND (NOT AVAILABLE) TOGO (NOT AVAILABLE) TONGA (NOT AVAILABLE) TRINIDAD AND TOBAGO (NOT AVAILABLE) TUNISIA (NOT AVAILABLE) TURKEY (NOT AVAILABLE) TURKMENISTAN (NOT AVAILABLE) TUVALU (NOT AVAILABLE) UGANDA (NOT AVAILABLE) UNITED ARAB EMIRATES (NOT AVAILABLE) UNITED KINGDOM (NOT AVAILABLE) URUGUAY (NOT AVAILABLE) UZBEKISTAN (NOT AVAILABLE) VANUATU (NOT AVAILABLE) VATICAN CITY (NOT AVAILABLE) VIRGIN ISLANDS, BRITISH (NOT AVAILABLE) VIRGIN ISLANDS, U.S. (NOT AVAILABLE) ZAMBIA HOME PULL-TYPE EXPANDER PLUGS FLOW RESTRICTORS ENGINEERING INDUSTRIES REQUEST QUOTE ABOUT PUSH-TYPE EXPANDER PLUGS CHECK VALVES ARTICLES LOCATIONS © 2021 SFC KOENIG AGImprintTerms & ConditionsPrivacy PolicySitemap HEADQUARTERS SFC KOENIG AG Lagerstrasse 8 8953 Dietikon, Switzerland Phone +41 44 743 46 00 sfc-info-ch@idexcorp.com EUROPE SFC KOENIG GmbH Max-Eyth-Strasse 14 89186 Illerrieden, Germany Phone +49 7306 2062 300 sfc-info-de@idexcorp.com AMERICAS SFC KOENIG LLC 73 Defco Park Road North Haven, CT 06473, USA Phone +1 203 245 1100 sfc-info-us@idexcorp.com ASIA SFC KOENIG Flow Control (Suzhou) Co., Ltd. No.51 TangBang Road, CaoHu Boulevard Xiang Cheng District, Suzhou, China. 215131 Phone +86 512 6585 9515 sfc-info-cn@idexcorp.com In order to manage your session this site uses cookies (technology that remembers your use of the website by placing tracking tools on your device). SFC KOENIG uses cookies to store or access information on your device to help us understand and monitor how visitors move around the website. For more information, or to amend your preferences, click the “Manage My Preferences” button. Do you accept these cookies and the processing of your personal data involved? Yes, I accept No, I do not accept Manage my Preferences