Pneumatic Industrial Control Valves, Cage Valves

We offer pneumatic industrial control valves, cage valves, heavy duty valves, high pressure control valves.
k. Zmk/ znk/ zkk high pressure control valve
this series is a successful self-research product, mainly to meet the need of the power plant, especially for 300/600mw large-scale thermal power generation equipment, oil and chemical plant.
there are zmk(pneumatic high pressure regulating valve), zkk(electric high pressure valve), znk(high pressure regulating by hand).
dn(mm)20~250 (3/4"~10�) ; pn�mpa�1.6\4.0\6.4\10.0 �asme class 150/300/400/600�;.
working temperature: 250~400celsius. Flow characteristic: equal percent, linear.
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the key technology of zkk znk-type high-pressure regulating valve is the inside valve trim structure and its manufacturing technics. (figure 1)
according to the spot condition, there are two types of trim are available, full-stack-plate valves (figure 1) and the other one is stack plate and the window-shaped sleeve of the modular structure (figure 2). Two kinds of structural forms, the former is applied in high-pressure differential occasions system such as the power plant or chemical industry and high-pressure differential occasion upon small opening. The latter in medium and high pressure occasion upon normal opening when pressure differential is not large.
anti-air erosion of high-pressure differential control valve body (figure 3).