The cast iron bellows valve type VG234 is a bellows sealed valve PN40 with hermetic stem sealing and non-rising stem. Its body comes in three materials: grey cast iron EN-GJL-250, ductile iron EN-GJS-400-18-LT and cast steel 1.0619 (GP240GH). Disc and stem consist of 1.4021 (X20Cr13), the seat of stainless steel.<\/p>\n
The metal bellows in X6CrNiMoTi17-12-2 seals the stem passage leak-free. It is certified to TA-Luft according to ISO 15848-1. The packing rings consist of graphite. The bellows valve with flange covers nominal sizes DN15 to DN250. It is available in pressure ratings PN10, PN16, PN25 and PN40.<\/p>\n
Flange connections conform to EN 1092-2<\/a> (PN10 to PN25) and EN 1092-1 (PN40). In addition, the face-to-face length follows DIN EN 558 Series 1. Tightness is tested to EN 12266-1 Class A. The maximum operating temperature ranges from 300 \u00b0C to 450 \u00b0C, depending on body material. FERGO supplies the bellows valve high temperature ex stock.<\/p>\n The cast iron bellows valve is available in nominal sizes DN15 to DN250. Pressure ratings cover PN10, PN16, PN25 and PN40. Flange connections conform to EN 1092-2 for PN10 to PN25 and EN 1092-1 for PN40. Furthermore, the face-to-face length follows DIN EN 558 Series 1. Actuation is by steel handwheel with non-rising stem.<\/p>\n The maximum operating temperature depends on the body material. It reaches 300 \u00b0C for EN-GJL-250. For EN-GJS-400-18-LT, 350 \u00b0C is possible. The cast steel version 1.0619 handles up to 450 \u00b0C. Therefore, the bellows globe valve ductile iron suits steam and high-temperature applications. It also covers varying pressure requirements.<\/p>\n The body is available in grey cast iron EN-GJL-250, ductile iron EN-GJS-400-18-LT or cast steel 1.0619. The choice depends on operating conditions. Disc and stem in 1.4021 (X20Cr13), together with the stainless steel seat, ensure wear-resistant shut-off. They also withstand thermal stress.<\/p>\n The bellows in X6CrNiMoTi17-12-2 seals the stem passage hermetically. It is certified to TA-Luft according to ISO 15848-1. As a result, fugitive emissions at the stem penetration are eliminated. The graphite packing serves as an additional safety seal. Moreover, the bellows valve TA-Luft meets the requirements for low-emission valves. It suits environmentally regulated installations.<\/p>\n The cast iron bellows valve protects steam lines reliably. It also protects hot water circuits, thermal oil systems and industrial process pipelines. The hermetic stem seal provided by the metal bellows prevents fugitive emissions. This gives a decisive advantage in installations subject to strict environmental regulations. In addition, the three body materials allow targeted selection. This depends on medium, temperature and pressure requirements. For custom solutions<\/a>, project quantities or technical advice, the FERGO team is available.<\/p>\n","protected":false},"excerpt":{"rendered":" Cast Iron Bellows Valve Type VG234 \u2014 Hermetically Sealing Valve for Steam and Heat Transfer The cast iron bellows valve type VG234 is a bellows sealed valve PN40 with hermetic stem sealing and non-rising stem. Its body comes in three materials: grey cast iron EN-GJL-250, ductile iron EN-GJS-400-18-LT and cast steel 1.0619 (GP240GH). Disc and […]<\/p>\n","protected":false},"featured_media":7675,"template":"","meta":{"_acf_changed":false,"_acf":"","footnotes":""},"produktgruppe":[124],"class_list":["post-7674","produkt","type-produkt","status-publish","has-post-thumbnail","hentry","produktgruppe-globe-valves"],"acf":{"produkt_beschreibung":"Technical Data and Connection of the Cast Iron Bellows Valve<\/h3>\n
Materials and Approvals of the Flanged Bellows Valve<\/h3>\n
Applications and Ordering of the High-Temperature Bellows Valve<\/h3>\n
Bellows Shut-off Valve<\/h2>\nThe bellows shut-off valve ensures a hermetic seal, effectively preventing leaks and media loss. This is particularly important in industries such as power generation, petrochemical plants, water and wastewater management, chemical, pharmaceutical, and food processing. Furthermore, the bellows seal effectively prevents the emission of hazardous or environmentally harmful media. \n\nThe Bellows Valve Type VG234 is an excellent choice for demanding industrial applications. It is characterized by its high reliability and durability and is available in various nominal connection sizes from DN15 to DN250. This shut-off valve with bellows is available ex stock in ductile iron (GGG40), grey cast iron (GG25), and cast steel (1.0619) with flange connections PN10, PN16, PN25, and PN40. The valve is equipped with a robust X6CrNiMoTi17-12-2 stainless steel bellows and graphite packing, offering exceptional service life. Type VG234 is TA-Luft certified. Due to its excellent manufacturing quality, this bellows valve can be used for regulating many industrial liquids, gases, or steam. \n\nChoose our bellows-sealed valve Type VG234 for efficiency, safety, and a long service life for your system.\n\nBellows Valve Type VG234A, PN16-DNxx (Article number: 200-1110-xx) DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250<\/strong>\n
\n \t
\n \t
\n \t