1) Angle type stop valve; in the angle type stop valve, the fluid only needs to change its direction once, so that the pressure drop through the valve is higher than that of the conventional structure of the stop valve. 1) Angle type stop valve; in the angle type stop valve, the fluid It only needs to change the direction once, so that the pressure drop through this valve is smaller than that of a conventional shut-off valve. 2) Direct-flow stop valve; in direct-flow or Y-shaped stop valve, the flow passage of the valve body is in a diagonal line with the main flow passage, so that the degree of damage to the flow state is smaller than that of the conventional stop valve, so the pressure loss through the valve is also corresponding Is too small. 3) Plunger type globe valve: This type of globe valve is a variation of the conventional globe valve. In this valve, the disc and valve seat are usually designed based on the plunger principle. The valve clack is polished so that the plunger and the valve stem are connected, and the sealing is achieved by two elastic sealing rings sleeved on the plunger. The two elastic sealing rings are separated by a sleeve ring, and the sealing ring around the plunger is pressed firmly by the load exerted on the bonnet by the bonnet nut. The elastic sealing ring can be replaced and can be made of various materials. The valve is mainly used for 'open' or 'close.
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