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ZQGP Pneumatic Quick Cut Off Valve
Product Description The ZMQ/ZSQ series pneumatic cut-off valve is an execution unit in the pneumatic unit combination instrument. It directly controls the cut-off and circulation of the regulated medium according to signals from the control system or regulating instruments, achieving automatic control of parameters such as pressure, flow rate, temperature, or liquid level. This series of products has a simple and exquisite structure, light weight, easy use and maintenance, fire and explosion resistance, and can be quickly opened without leakage. Therefore, it is widely used in automatic control systems for production processes in industries such as petroleum, chemical, metallurgy, pharmaceuticals, papermaking, printing and dyeing. This series of products includes ZMQ type (pneumatic diaphragm cut-off valve series), ZSQ-III type (pneumatic piston cut-off valve) and other series of products with nominal pressure ratings of PN (Mpa) 1.6, 4.0, 6.4; Valve body diameter range DN (mm) 15~200; The leakage standards include Level III, Level IV, Level V, and Level VI; Suitable for fluids such as steam, water, flammable gases, etc. This series of products has multiple specifications to choose from. Part material Common materials for main components Valve body: ZG230~450, ZG1Cr18Ni9Ti ZGCr18Ni12Mo2Ti、HT200 Valve core: Metal parts: 1Cr18Ni9Ti, Cr18Ni12Mo2Ti Soft sealing part: PTFE, graphite+PTFE Valve seat: 1Cr18Ni9Ti, Cr18Ni12Mo2Ti Valve stem: 1Cr18Ni9Ti, Cr18Ni12Mo2Ti, 2Cr13 Spring: 60Si2Mn Diaphragm: Nitrile rubber clip reinforced nylon fabric Membrane cover: A3 Packing: PTFE, flexible graphite Ordering Instructions Please provide the following information when placing an order: Name and model of regulating valve • Nominal diameter (mm) • Nominal pressure (MPa) Rated flow coefficient (Kv) • Media name • Working temperature and range • Operation mode of the whole machine Valve body, valve internals, and packing materials • Accessories provided |
