What are the classifications of the sampling valve products?
Jun 15, 2019| What are the classifications of the sampling valve products?
The sampling valve is used to obtain the sample of the pipeline or equipment medium. In many occasions where chemical analysis of the medium sample is required, a special sampling valve is generally used. According to the working principle or performance of the sampling, the sampling is divided into three. Types include flanged clip valves, double open valves, and sampling valves with insulated jackets.
First, the flange clip valve
The principle of the flange clamp valve is to seal the vertebral body at the top of the valve stem and the taper hole of the valve seat. When sampling, use the hand wheel to increase the position of the valve stem, and separate the valve stem and the taper hole. The medium will flow into the external sampling vessel.
Second, the double open valve
The double opening valve is a common sampling valve, usually composed of two connected ball valves, which is characterized by safe and stable sampling. During the sampling process, close the double opening valve close to the valve of the equipment and pipeline, and then open the B valve, the medium flows into the space of the two valves. After closing the B valve and opening the A valve, we put the sampling vessel in the sample for sampling. In the medium.
Third, the flange clip valve
The flange pinch valve is sealed by the vertebral body at the top of the valve stem and the taper hole of the valve seat. When sampling, the hand wheel is used to lift the position of the valve stem, and the valve stem and the taper hole are separated, and the medium in the taper hole can flow into the outside. Inside the sampler.