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The application of dismantling joints.
Val-tec dismantling joints provide easy installation and disassembly of flanged pipework and fittings, or flanged equipment such as valves, meters and pumps. The dismantling joints compensate for axial displacement of the pipe during installation and dismantling.
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Application of knife gate valves
Knife Gate Valves (KGVs) were introduced to the world to be used in the pulp and paper industry in 1927. When the market demanded a low-cost valve for pulp stock operations, the specialized knife gate valve design was born. While we’ve adopted the word “knife gate” as a general term for each version of this valve, you might be surprised to learn that only the Guided-Shear Gate and its higher-caliber variant, can really “cut” through media like a knife.
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Application of gate valves in potable water distribution systems
The most common type of in-line valve used in a water distribution system is the gate valve also called a water service valve. The foremost gate valve type is one with a non-rising stem, a valve in which the stem does not rise as the valve is operated. This valve is reasonably dependable, has an almost unblocked waterway when open, is very economical in smaller sizes, and can be installed underground with a minimum cost.
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精密铸造发展前景
熔模精密铸造是指用易熔材料制成可熔性模型，在其上涂覆若干层特制的耐火涂料，经过干燥和硬化形成一个整体型壳后，再用蒸汽或热水从型壳中熔掉模型，然后把型壳置于砂箱中，在其四周填充干砂造型，最后将铸型放入焙烧炉中经过高温焙烧，铸型或型壳经焙烧后，于其中浇注熔融金属而得到铸件。
