Shanghai Qigao Pump and Valve Group

Multifunctional pressure reducing valve can be used for water, steam, natural gas, oxygen, nitrogen, hydrogen and other media.
d=_r > The pressure reducing valve is an energy-saving control device that does not require external driving energy and relies on the pressure of the regulated medium itself as the power source and its medium pressure changes to automatically adjust according to predetermined set values. It integrates detection, control and execution of many functions into one valve to form an independent instrument control system. Since the pressure reducing valve does not require external energy, the structure is simple to use, easy to use and requires little maintenance work, it is especially suitable for urban heating, heating, and situations where there is no external power supply or air supply and steam pressure needs to be controlled. According to foreign reports, the energy-saving efficiency of urban heating and heating systems using this product has increased by %-% compared with before.
Product Features
The pressure reducing valve is an energy-saving automatic control system that does not require external driving energy. The equipment cost is low. It is suitable for explosive environments. The structure is simple and the maintenance workload is small. The set point is adjustable and has a wide range, making it easy for the user to stay within the setting range. The continuous adjustment diaphragm type actuator has higher detection accuracy than the cylinder type mechanism. The pressure balance mechanism is used in the valve to make the control valve responsive, precise in control and allow a large pressure difference.
Main technical parameters
%r = dd % = nominal diameter D
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% = Rated flow coefficient
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% = rated stroke
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% = nominal pressure
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% = Pressure adjustment range
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% = Flow characteristics (℃)
/> % Quick opening
% = Adjustment accuracy (%)
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% = Operating temperature (℃)
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% = => Allowable leakage
% => Hard seal (/)
% Single seat: ˉValve rated capacity (level) Double seat, sleeve: ˉValve rated capacity (level)
% => Soft seal (/)
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% = => Pressure reduction ratio
% => Maximum
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% => Minimum
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