● Overview
ZJHP, ZJHM fine small pneumatic diaphragm through single seat , sleeve valve driven by the top structure , equipped with multi-spring actuator. With a compact, light weight, sensitive , fluid channel S streamlined , low pressure drop , large valve capacity , flow characteristics of precision, easy disassembly . Widely used for precise control of gases, liquids and other media process parameters such as pressure, flow , temperature, level maintained at a given value . Particularly suitable for allowing a small amount of leakage and the differential pressure valve is not in the workplace .
This series of products that you have standard, adjust a variety of species cut type , bellows sealed , jacket insulation type. Nominal grade products are PN16, 40,64; nominal diameter range of DN20 ~ 300. For fluid temperature from the range of -200 ℃ to +560 ℃ variety of grades . Leakage standards or Ⅵ Ⅳ grade level , flow characteristics such as linear or equal percentage . Choose from a variety of different specifications .
● Main parts and materials
Body, bonnet : HT200, ZG230 ~ 450, ZG1Cr18Ni9Ti
Valve, valve seat : 1Cr18Ni9Ti, Secretary Levin titanium alloy welding
Soft seal spool : PTFE
Packing : PTFE, flexible graphite, stainless steel bellows
Gasket: Rubber asbestos , 1Cr18Ni9Ti, graphite spiral wound gasket
Membrane cover : A3
Corrugated diaphragm : NBR clip reinforced polyester fabric
Spring : 60Si2Mn
Putter, Stem : 2Cr13, 1Cr18Ni9Ti
Bushing : 2Cr13
