Are pneumatic cut-off valve products expensive?

Thread Content

　　Are pneumatic cut-off valve products expensive? Classification of pneumatic cut-off valves: standard pneumatic cut-off valves, rapid emergency pneumatic cut-off valves. Products are constantly being updated, and with the advancement of technology, their performance has improved significantly. Today’s products can largely meet people’s needs. What is the price of the product? These need to be determined based on each manufacturer’s production processes and other related factors. Advantages of pneumatic cut-off valves: 1. The valve body structure comes in three types – single-seat, sleeve, and double-seat (2/3 way); the sealing methods include packing seal and diaphragm seal. The nominal pressure ratings available are PN10, 16, 40, and 64, while the nominal diameter range is from DN20 to 200 mm. The applicable fluid temperature ranges from -60 to 450°C. The leakage level is Grade IV or Grade VI. The flow characteristic is quick opening ； 2. By using a multi-spring actuator and connecting the adjustment mechanism with three columns, the overall height can be reduced by about 30%, and the weight can be decreased by about 30% ； 3. The valve body is designed according to fluid dynamics principles as a flow channel with a constant cross-section and low flow resistance, resulting in a 30% increase in the rated flow coefficient ； 4. The sealing parts of the valve internals are available in two types: tight-sealing and soft-sealing. The tight-sealing type features cemented carbide, while the soft-sealing type is made of soft materials, providing excellent sealing performance when closed ； 5. Balanced valve internals, which increase the allowable pressure difference of the shut-off valve ； 6. The bellows-sealed type provides a complete seal around the moving valve stem, eliminating the possibility of medium leakage ； 7. Piston-type actuator, with high operating force and requiring a large pressure difference.