- \n
- Ring Joint Gaskets (RTJ)<\/b> \u2013 Ring Joint Gaskets<\/li>\n<\/ul>\n
<\/p>\n
RTJ gaskets are characterized by an oval or octagonal cross-section. Depending on the design, types R, RX, and BX are distinguished. Product identification is based on the nominal pipe size (NPS), pressure class, and compliance with ASME\/API standards.<\/p>\n
1. Type R Gaskets:<\/b> Designed for installation in prepared flange grooves. Manufactured from high-strength steel alloys.<\/p>\n
- \n
- NPS range: from 1\/2 to 24 inches (ASME B16.5 flanges).<\/li>\n
- NPS range: from 26 to 36 inches (ASME B16.47 Series A\/B flanges).<\/li>\n
- Pressure classes: 150 \u2013 2500 Psi.<\/li>\n<\/ul>\n
<\/p>\n
1.1. Oval:<\/b> Possess two contact zones, which increases resistance to “blow-out” and allows for maintaining tightness even on flanges with minor surface defects.<\/p>\n
1.2. Octagonal:<\/b> Provide precision sealing due to the trapezoidal fit with the groove, which is critical in heavy-duty operating modes.<\/p>\n
2. Type RX Gasket and 3. Type BX Gasket:<\/b> Specialized solutions for high pressure.<\/p>\n
\nMaterials and Hardness<\/h2>\n
The selection of EV Group China gasket material is based on the chemical aggressiveness of the medium and the process temperature parameters. The gasket hardness must be at least 20 HB lower than the flange surface hardness to ensure plastic deformation and sealing integrity.<\/p>\n
\n\n
\n \nMaterial (ASTM)<\/th>\n DIN No.<\/th>\n Max. Hardness (HB)<\/th>\n Max. Hardness (HV)<\/th>\n Code<\/th>\n<\/tr>\n<\/thead>\n \n Soft Iron<\/td>\n 1.1003<\/td>\n 90<\/td>\n 56<\/td>\n D<\/td>\n<\/tr>\n \n Low Carbon Steel<\/td>\n 1.0038<\/td>\n 120<\/td>\n 68<\/td>\n S<\/td>\n<\/tr>\n \n Carbon Steel (4-6Cr 1\/2Mo)<\/td>\n 1.7362<\/td>\n 130<\/td>\n 72<\/td>\n F5<\/td>\n<\/tr>\n \n AISI 410<\/td>\n 1.4000<\/td>\n 170<\/td>\n 86<\/td>\n S 410<\/td>\n<\/tr>\n \n AISI 304<\/td>\n 1.4301<\/td>\n 160<\/td>\n 83<\/td>\n S 304<\/td>\n<\/tr>\n \n AISI 316<\/td>\n 1.4401<\/td>\n 160<\/td>\n 83<\/td>\n S 316<\/td>\n<\/tr>\n \n AISI 347<\/td>\n 1.4550<\/td>\n 160<\/td>\n 83<\/td>\n S 347<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n - \n
- Spiral Wound (SW) Gaskets<\/b> \u2013 Spiral Wound Gaskets<\/li>\n<\/ul>\n
<\/p>\n
EV Group China spiral-wound gaskets are used in tongue-and-groove and raised-face connections. The design includes a metal frame and a soft filler. Types: SW (without rings), SW\/I (with inner ring), SW\/C (with outer ring), SWC\/I (combined).<\/p>\n
\n
\n
\n- \n
- Jacketed Gaskets<\/b> \u2013 Jacketed Gaskets<\/li>\n<\/ul>\n
\n
\n<\/p>\n
- \n
- Grooved Metal Gaskets<\/b> \u2013 Grooved Gaskets with coating<\/li>\n<\/ul>\n
Grooved gaskets with a metallic coating provide excellent sealing under cyclic stress conditions.<\/p>\n","protected":false},"featured_media":0,"template":"","meta":[],"wiki_category":[110],"class_list":["post-69520","wiki","type-wiki","status-publish","hentry","wiki_category-asme"],"_links":{"self":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki\/69520","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki\/69520\/revisions"}],"wp:attachment":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/media?parent=69520"}],"wp:term":[{"taxonomy":"wiki_category","embeddable":true,"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki_category?post=69520"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
- Grooved Metal Gaskets<\/b> \u2013 Grooved Gaskets with coating<\/li>\n<\/ul>\n
- Jacketed Gaskets<\/b> \u2013 Jacketed Gaskets<\/li>\n<\/ul>\n
- Spiral Wound (SW) Gaskets<\/b> \u2013 Spiral Wound Gaskets<\/li>\n<\/ul>\n