Tongue And Groove Face Flanges
The Tongue and Groove faces of this flanges must be matched. One flange face has a raised ring (Tongue) machined onto the flange face while the mating flange has a matching depression (Groove) machined into it's face.
Tongue-and-groove facings are standardized in both large and small types. They differ from male-and-female in that the inside diameters of the tongue-and-groove do not extend into the flange base, thus retaining the gasket on its inner and outer diameter. These are commonly found on pump covers and Valve Bonnets.
Tongue-and-groove joints also have an advantage in that they are self-aligning and act as a reservoir for the adhesive. The scarf joint keeps the axis of loading in line with the joint and does not require a major machining operation.
General flange faces such as the RTJ, TandG and the FandM shall never be bolted together. The reason for this is that the contact surfaces do not match and there is no gasket that has one type on one side and another type on the other side.
Tongue And Groove Face Flanges,Tongue & Groove Flange,Groove Flanges,Tongue And Groove Joint Flange Fuyuan Marine Accessories Co., Ltd , https://www.fuyuanmarineparts.com
The construction goals of these 16 key chemical projects are to ensure that 8 projects are put into operation on schedule, 4 projects start on schedule, and 4 projects complete the preparatory work. The 8 production projects refer to the continued construction of the third set of acrylonitrile, the annual output of 300,000 tons of sulfur-containing wastewater acid, acetone cyanohydrin/methyl methacrylate expansion, the second phase of the power plant expansion, 2000 tons/year of methyl vanillin Expansion, 3,000 tons/year N-methylmorpholine and morpholine complex, 1,500 tons/year N-formylmorpholine and 500 tons/year N-acetylmorpholine industrialization demonstration project, polymethyl methacrylate project The 4 projects that started on schedule refer to the propylene project, the fourth acrylonitrile project, the styrene project, and the power plant phase III expansion project; the four completed pre-projects are the polyisobutylene expansion project, the ethanolamine/ethylenediamine project, and carbon 5 carbon. 9 Comprehensive utilization of projects, conversion of high-carbon alcohols to alpha-olefins. As a result, the company's main business income in 2007 reached 10 billion yuan, and the physical quantity of chemical products reached 800,000 tons.
Jilin Chemical Group will invest 2.8 billion yuan this year to build key chemical projects
After Jilin Group invested RMB 1.8 billion in 2006 to complete 10 technological transformation projects including high-activity polyisobutylene expansion, it will continue to invest RMB 2.8 billion to build 16 key chemical projects in 2007.