{"id":9267,"date":"2026-07-01T17:18:41","date_gmt":"2026-07-01T15:18:41","guid":{"rendered":"https:\/\/www.fergo.eu\/produkt\/gas-flanged-ball-valve-kh121\/"},"modified":"2026-09-28T10:24:40","modified_gmt":"2026-09-28T08:24:40","slug":"gas-flanged-ball-valve-kh121","status":"publish","type":"produkt","link":"https:\/\/www.fergo.eu\/en\/product\/gas-flanged-ball-valve-kh121\/","title":{"rendered":"Gas Flanged Ball Valve DVGW KH121"},"content":{"rendered":"<h2>Gas Flanged Ball Valve KH121 \u2014 DVGW-Approved Shut-Off Valve in Ductile Iron<\/h2>\n<p>The gas flanged ball valve KH121 is a DVGW-approved shut-off valve in a 2-piece body of ductile iron GGG40 (EN-GJS-400-15). This DVGW certified gas ball valve provides reliable full-bore shut-off for natural gas, biogas, town gas and non-corrosive gases in nominal sizes DN25 to DN150 at PN16. Approval to DIN EN 13774 confirms suitability for gas distribution networks and industrial gas installations. FERGO supplies the KH121 in three ball variants ex stock.<\/p>\n<h4>Technical Data and Ball Variants<\/h4>\n<p>The ductile iron gas ball valve KH121 covers nominal sizes DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN125 and DN150 at pressure rating PN16. Face-to-face length conforms to EN 558-1 Series 14, flange connections to DIN PN16. The operating temperature range is \u201320 \u00b0C to +60 \u00b0C with a maximum working pressure of 16 bar.<\/p>\n<p>Three ball variants are available: KH121-D2CTHF with a solid ball in cast iron GG25 for standard gas applications. KH121-D2STHF with a solid ball in stainless steel 1.4404 for increased corrosion resistance. KH121-D2S1THF with a hollow ball in stainless steel 1.4301 for reduced weight \u2014 this variant is not suitable for actuator mounting.<\/p>\n<h4>Materials and Sealing<\/h4>\n<p>The body of the gas shut-off ball valve is manufactured in ductile iron GGG40 \u2014 a proven material for gas distribution networks, industrial plants and municipal infrastructure. The PTFE seat seal provides gas-tight shut-off across the full temperature range. The stem seal is also PTFE, meeting the requirements for fugitive emission tightness to TA-Luft.<\/p>\n<h4>Approvals and Standards<\/h4>\n<p>The gas flanged ball valve KH121 holds DVGW approval to <a href=\"https:\/\/www.dinmedia.de\/en\/standard\/din-en-13774\/258766638\" target=\"_blank\" rel=\"noopener\">DIN EN 13774<\/a> for gas applications. TA-Luft conformity confirms tightness against fugitive emissions. The valve carries CE marking in accordance with the Pressure Equipment Directive PED 2014\/68\/EU. Actuator mounting flanges are designed to ISO 5211 for direct mounting of quarter-turn actuators.<\/p>\n<h4>Actuation and Ordering<\/h4>\n<p>The gas ball valve KH121 is supplied with a hand lever as standard. Automation with pneumatic actuators (single-acting or double-acting) or electric actuators is carried out in-house via the ISO 5211 mounting interface. For <a href=\"https:\/\/www.fergo.eu\/en\/custom-solution\/\" target=\"_blank\" rel=\"noopener\">custom solutions<\/a>, project quantities or technical advice, the FERGO team is available.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Gas Flanged Ball Valve KH121 \u2014 DVGW-Approved Shut-Off Valve in Ductile Iron The gas flanged ball valve KH121 is a DVGW-approved shut-off valve in a 2-piece body of ductile iron GGG40 (EN-GJS-400-15). This DVGW certified gas ball valve provides reliable full-bore shut-off for natural gas, biogas, town gas and non-corrosive gases in nominal sizes DN25 [&hellip;]<\/p>\n","protected":false},"featured_media":9271,"template":"","meta":{"_acf_changed":false,"_acf":"","footnotes":""},"produktgruppe":[110,111],"class_list":["post-9267","produkt","type-produkt","status-publish","has-post-thumbnail","hentry","produktgruppe-ball-valve","produktgruppe-flanged-ball-valves"],"acf":{"produkt_beschreibung":"<h2>Gas Ball Valve DVGW Certificate<\/h2>\n<p class=\"bodytext\">Fergo Armaturen GmbH offers a wide range of different ball valves. The ball valves mainly differ in terms of connection type, Body material, maximum pressure rating, and available certificates (TA Luft, FireSafe, DVGW Gas, DVGW drinking water). For connection types, you can choose between flange connection (DIN EN or ASME), threaded socket (DIN EN or NPT as well as female and male threads), and weld ends (socket weld or butt weld). Standard body materials available are brass, steel, and stainless steel. Special materials such as titanium and duplex are also available on request. Ball valves with a mounting flange (EN ISO 5211) can be automated by us with pneumatic and electric actuators. You can find more information about this ball valve under \"Tech. data\" and in the data sheet, which you can download here under \"Downloads\".       <\/p>\n\n<h4>Ball Valve KH121-D2CTHF (Item No.: 100-1038-xx)<\/h4>\n<ul>\n \t<li>DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN125, DN150<\/li>\n \t<li>Flange Connection according to DIN PN16<\/li>\n \t<li>Face-to-face according to EN558-1 Series 14 <\/li>\n \t<li>Full passage<\/li>\n \t<li>2-piece<\/li>\n \t<li>Body: GGG40<\/li>\n \t<li>Ball: Cast steel<\/li>\n \t<li>Ball seal: PTFE<\/li>\n \t<li>Temp. (min.\/max.): -20\u00b0C to +60\u00b0C <\/li>\n \t<li>Max. operating pressure: 16 bar <\/li>\n \t<li>Direct drive configuration in accordance with ISO 5211<\/li>\n \t<li>Certificates: DVGW for gas, TA Luft, CE<\/li>\n \t<li>Operation: Hand lever, pneumatic & electric actuators<\/li>\n<\/ul>\n<h4>Ball Valve KH121-D2STHF (Item No.: 100-1039-xx)<\/h4>\n<ul>\n \t<li>DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN125, DN150<\/li>\n \t<li>Flange Connection according to DIN PN16<\/li>\n \t<li>Face-to-face according to EN558-1 Series 14 <\/li>\n \t<li>Full passage<\/li>\n \t<li>2-piece<\/li>\n \t<li>Body: GGG40<\/li>\n \t<li>Ball: Stainless steel (1.4404)<\/li>\n \t<li>Ball seal: PTFE<\/li>\n \t<li>Temp. (min.\/max.): -20\u00b0C to +60\u00b0C (Gas) <\/li>\n \t<li>Max. operating pressure: 16 bar <\/li>\n \t<li>Direct drive configuration in accordance with ISO 5211<\/li>\n \t<li>Certificates: DVGW for gas, TA Luft, CE<\/li>\n \t<li>Operation: Hand lever, pneumatic & electric actuators<\/li>\n<\/ul>\n<h4>Ball Valve KH121-D2S1THF (Item No.: 100-1048-xx)<\/h4>\n<ul>\n \t<li>DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN125, DN150<\/li>\n \t<li>Flange Connection according to DIN PN16<\/li>\n \t<li>Face-to-face according to EN558-1 Series 14 <\/li>\n \t<li>Full passage<\/li>\n \t<li>2-piece<\/li>\n \t<li>Body: GGG40<\/li>\n \t<li>Ball: Stainless steel (1.4301, hollow)<\/li>\n \t<li>Ball seal: PTFE<\/li>\n \t<li>Temp. (min.\/max.): -20\u00b0C to +60\u00b0C <\/li>\n \t<li>Max. operating pressure: 16 bar <\/li>\n \t<li>Direct drive configuration in accordance with ISO 5211<\/li>\n \t<li>Certificates: DVGW for gas, TA Luft, CE<\/li>\n \t<li>Operation: Hand lever<\/li>\n \t<li><strong>IMPORTANT! Not suitable for actuator mounting! <\/strong><\/li>\n<\/ul>","product_short_desc":"Flanged Ball Valve made of GGG40 with DVGW Gas Certificate","shop_link":"https:\/\/fergo.shop\/en\/ball-valves-for-water-gas\/","technische_daten_tabellen_repeater":[{"tabellen_label":"Technical Specifications","technische_daten_repeater":[{"column_left":"Type","column_right":"Ball valve","product_fact_display":"none","product_fact_order":"","shorten":false},{"column_left":"Sizes","column_right":"DN25 to DN150","product_fact_display":"top","product_fact_order":1,"shorten":false},{"column_left":"Flange connection","column_right":"PN10, PN16","product_fact_display":"none","product_fact_order":"","shorten":false},{"column_left":"Face-to-face","column_right":"DIN EN 558-1 series 14","product_fact_display":"none","product_fact_order":"","shorten":false},{"column_left":"Case material","column_right":"GGG40","product_fact_display":"top","product_fact_order":2,"shorten":false},{"column_left":"Pressure range","column_right":"PN16","product_fact_display":"none","product_fact_order":"","shorten":false},{"column_left":"Ball material","column_right":"GG25, 1.4104","product_fact_display":"none","product_fact_order":"","shorten":false},{"column_left":"Ball seat","column_right":"PTFE","product_fact_display":"none","product_fact_order":"","shorten":false},{"column_left":"Certificates","column_right":"DVGW for gas, TA-Luft","product_fact_display":"top","product_fact_order":3,"shorten":false},{"column_left":"Operations","column_right":"Electric, pneumatic (double-acting and single-acting), hand lever","product_fact_display":"top","product_fact_order":4,"shorten":false}]}],"produkt_downloads":"<a href=\"https:\/\/www.fergo.eu\/wp-content\/uploads\/2018\/10\/KH121.pdf\">Download \"Ball Valve KH121\"<\/a>","datenblaetter_repeater":[{"datenblatt":5711,"download_titel":"Download \"Ball Valve KH121\""}],"variations_repeater":[{"variantion_titel":"Ball Valve KH121-D2CTHF: Cast steel ball","article_number":"","variantion_content":"<ul>\n \t<li>DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN125, DN150<\/li>\n \t<li>Flange Connection according to DIN PN16<\/li>\n \t<li>Face-to-face according to EN558-1 Series 14 <\/li>\n \t<li>Full passage<\/li>\n \t<li>2-piece<\/li>\n \t<li>Body: GGG40<\/li>\n \t<li><strong>Ball: Cast steel<\/strong><\/li>\n \t<li>Ball seal: PTFE<\/li>\n \t<li>Temp. (min.\/max.): -20\u00b0C to +60\u00b0C <\/li>\n \t<li>Max. operating pressure: 16 bar <\/li>\n \t<li>Direct drive configuration in accordance with ISO 5211<\/li>\n \t<li>Certificates: DVGW for gas, TA Luft, CE<\/li>\n \t<li>Operation: Hand lever, pneumatic & electric actuators<\/li>\n<\/ul>"},{"variantion_titel":"Ball Valve KH121-D2STHF: Stainless steel ball","article_number":"","variantion_content":"<ul>\n \t<li>DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN125, DN150<\/li>\n \t<li>Flange Connection according to DIN PN16<\/li>\n \t<li>Face-to-face according to EN558-1 Series 14 <\/li>\n \t<li>Full passage<\/li>\n \t<li>2-piece<\/li>\n \t<li>Body: GGG40<\/li>\n \t<li><strong>Ball: Stainless steel (1.4404)<\/strong><\/li>\n \t<li>Ball seal: PTFE<\/li>\n \t<li>Temp. (min.\/max.): -20\u00b0C to +60\u00b0C (Gas) <\/li>\n \t<li>Max. operating pressure: 16 bar <\/li>\n \t<li>Direct drive configuration in accordance with ISO 5211<\/li>\n \t<li>Certificates: DVGW for gas, TA Luft, CE<\/li>\n \t<li>Operation: Hand lever, pneumatic & electric actuators<\/li>\n<\/ul>"},{"variantion_titel":"Ball Valve KH121-D2S1THF: Stainless steel ball (1.4301, hollow)","article_number":"","variantion_content":"<ul>\n \t<li>DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN125, DN150<\/li>\n \t<li>Flange Connection according to DIN PN16<\/li>\n \t<li>Face-to-face according to EN558-1 Series 14 <\/li>\n \t<li>Full passage<\/li>\n \t<li>2-piece<\/li>\n \t<li>Body: GGG40<\/li>\n \t<li><strong>Ball: Stainless steel (1.4301, hollow)<\/strong><\/li>\n \t<li>Ball seal: PTFE<\/li>\n \t<li>Temp. (min.\/max.): -20\u00b0C to +60\u00b0C <\/li>\n \t<li>Max. operating pressure: 16 bar <\/li>\n \t<li>Direct drive configuration in accordance with ISO 5211<\/li>\n \t<li>Certificates: DVGW for gas, TA Luft, CE<\/li>\n \t<li>Operation: Hand lever<\/li>\n \t<li><strong>IMPORTANT! Not suitable for actuator mounting! <\/strong><\/li>\n<\/ul>"}]},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Gas Ball Valve DVGW | GGG40 DN25\u2013DN150 PN16 | FERGO<\/title>\n<meta name=\"description\" content=\"DVGW-approved gas flanged ball valve KH121 in ductile iron GGG40, DN25\u2013DN150, PN16. Three ball variants: TA-Luft, ISO 5211. 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