Yesterday, one of clients requested valves for Chemical Industy and asked me to recommend some valves to him. I told him the chemical industry is a big user of valves of all types and materials. The most popular pressure classes for chemical plant valves are Classes 150 and 300.
When it means:
Controlling cooling water flows, You can choose PXN'S Control Globe Valve or Throtting Disc Globe Valve
Prevention black flow of cooling water flows and process gas & process liquid flow, with the choice of Quick Close Check Valve, this will be safest way to prevent medium backflow.
Chemical plant and plant process perferred linear valves, the API 603 designed valves, usually API 603 Globe Valve or API 603 Gate valve with thinner wall and lighter weights will be a good choice.
Fighting corrosion from a host of sometimes nasty fluids, with choic of the 316/316L grade of austenitic stainless steel, it is most suitable for the corrosive nature of many chemicals and chemical-making processes.
For some tougher corrosive applications, more protection is requested. Other high-performance grades of austenitic stainless steel valves, such 317, 347 and 321 are often chosen in these situations. Other alloy valves are used from time to time to control chemical fluids include Monel Valve, Alloy 20 Valve, Inconel Valve.
