Heat-conducting oil regulating valve is an essential heat-conducting oil pipeline control device in the heat-conducting oils heating system, which is used to connect, shunt or cut the heat conduction oil in the equipment and piping in the system, change the flow direction, control and adjust the pressure and flow, so as to ensure the timely regulation and stable operation

    Because of the many uses and frequent use of valves in the system, often the system is prone to leakage of the site, especially the heat conduction oil in high-temperature operation has a strong permeability, if the selection, use, maintenance is not appropriate, very easy to leak, resulting in burns, poisoning, fire, explosions and other safety accidents, resulting in loss of personnel and property. There are usually two cases of leakage of heat-conducting oil regulator valves, first, the valve closure caused by the leakage, this leakage and the valve spool type and structure of the valves, the other is in the valve stem at the leakage, this leakage and stem sealing form and sealing materials used.

    According to the valve leakage situation known in the selection of valve key to choose the valve core type and valve stem sealing mode. Heat conduction oil system selection of heat conduction oil regulator valve should not only consider the valve should have better flow regulation performance and lower leakage rate of the cut-off function, the safety and reliability of operation and meet the different size of the valve optional conditions, but also according to its characteristics to choose. In this system, the heat conduction oil is working under the high temperature and low pressure, the heat conduction oil under the high temperature has strong permeability, based on this system, the valve used in the system must have the reliable tightness in the high temperature condition, and ensure no leakage.

    According to experience plunger type cut-off valve should be the first choice of the heat conduction oil system valve type, valve stem sealing way to bellows form of sealing the most effective, it should be selected corrugated pipe heat conduction oil electric valve. After years of use, the bellows sealing valve and control valve are suitable for heat conduction oil heating system valves. Commonly used cut-off valves, gate valves, butterfly valves, ball valves and other valves, in the valve stem seals have clearance, in the open or close, the stem has moved or turned, when moving or rotating there is leakage. Commonly used in the form of filler seal valve stem, due to the sealing material in the packing letter in high temperature easily become hard to lose the seal, the need for frequent replacement of sealing materials. and bellows control valve is in the heat conduction oil control valve seals installed bellows, the media and valve stem seal completely isolated, solve the leakage problem. Bellows stop valve switch without friction, sealing is not easy to wear, the most suitable for flammable and explosive, toxic fluids and high-temperature heat conduction oil pipeline. It is the correct choice for the heat conduction oil system to choose the heat conduction oil regulating valve of bellows seal.