Solenoid Valves By Industry Sector

Each industry sector has a different use and need for solenoid valves. Here we discuss the types of solenoid valves and the predominant industry sector where they are used.

Petrochemical Solenoid Valves

The petrochemical industry is renowned for the harsh environments that the technology used must withstand. If this is not enough, the petrochemical industry operates under some of the strictest safety policies to be in any industry. Solenoid valves used within the petrochemical industry also have to meet the same requirements. This industry has more than any other has generated the need for specialist solenoid valves both in terms of functionality and safety compliance.

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Natural Gas Solenoid Valves

Natural Gas and Propane LPG safety solenoid valves with fast opening and fast closing are used to control atmospheric boilers, furnaces, commercial water heaters, roof top make up air burners, power burners, boilers and other gas consuming devices requiring combustion system pilot and or main gas line shut off and control systems. Most Gas approved EN161 Class A Group 2 solenoid valves will be 2/2 way meaning 2 ports inlet and outlet with 2 positions either open or closed and will be fail-safe position closed, i.e. in the event of power failure will automatically close.

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Water Industry Solenoid Valves

The water industry use a wide range of mainly 2/2 way normally closed solenoid valves, typically with Brass body and NBR seals, however for drinking water applications Brass valves with EPDM seals and WRAS approval are better suited as the water is being consumed. NBR was the original seal approved by WRAS and WRc but this changed to EPDM as this offered a better less tainted taste to drinking water. Most water control valves are simple 2 way or 2 port with inlet and outlet with 2 positions open or closed, the preferred choice is normally closed (fail safe closed) with power to open. In this way, upon electrical failure the valve will close and prevent the flow of water down the pipe, thus offering the advantages of reduced water consumption, reduced waste and are more environmentally friendly.

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The Bio-Fuels Industry

Bio-diesel consists of a mixture of Ethyl or Methyl Esters of fatty acids derived from vegetable oils and animal fats, obtained by the transesterification with a short molecular chain Alcohol, Methanol or Ethanol in the presence of a catalyst. This reaction changes the molecular structure of the vegetable oil or animal fat making it similar to diesel oil. In most instances diesel with low percentage bio-diesel blends with fossil diesel fuels are used with diesel engines.

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The Food Industry

Bio-diesel consists of a mixture of Ethyl or Methyl Esters of fatty acids derived from vegetable oils and animal fats, obtained by the transesterification with a short molecular chain Alcohol, Methanol or Ethanol in the presence of a catalyst. This reaction changes the molecular structure of the vegetable oil or animal fat making it similar to diesel oil. In most instances diesel with low percentage bio-diesel blends with fossil diesel fuels are used with diesel engines.