Nov 17, 2018

When purchasing an explosion-proof valve electric device, the principle is that the sealing performance should meet the requirements of the circulating medium in the pipeline, that is, the internal leakage meets certain standards, and no external leakage is allowed. Taking the explosion-proof valve electric device as an example, the following briefly introduces the explosion-proof purchase. The basic principles of the valve:

• 1. Defining the use of the explosion-proof valve electric device in the equipment to determine the working environment of the valve, such as what is the medium in the pipeline, the temperature of the medium and the surrounding environment, etc.;

  2. Determine the connection mode of the explosion-proof valve electric device and pipeline, such as thread, flange, etc.

  3, determine the operation mode of the valve, the general explosion-proof valve electric device is electric, but in other installation situations to determine whether the electric or hydraulic or manual or other;

  4, determine the manufacturing materials and industry of the pipeline and the valve itself, which closes to the valve can work normally, determine whether it is stainless steel or copper or cast iron or other;

  5, determine the type of valve of the explosion-proof valve electric device: ball valve, regulating valve, check valve, etc.

  6, determine the size.