Established in 1992, China Domanda Electric Machinery Co., Ltd. is China dosing pump manufacturer and wholesaler of pumps and eectric machinery. All production processes are conducted under rigid quality control measures, which have thereby earned us ISO9001 certification, in addition to European 'CE' and American 'UL' safety approvals for all series. We cooperate with a wide spectrum of customize dosing pumps and wholesale distributors.

Everyone wants savings either interms of money , energy , time , raw material , manpower , energy bill or process cost . DUPRO dosing - metering pump support client for saving byway of accurate and proper dosing.
In water treatment , effluent treatment , sewage treatment and various process in pulp and paper , chemical ,petrochemical , pharmaceutical and personal care , food and beverages by way of accurate dosing ,proportioning, injecting , addition , metering liquid in process several application saving of manpower , saving of chemical or raw material , saving of process time with proper process quality is possible.
Manual dosing of chemical is cause of wastage of chemical , wastage of man hours , poor process quality , delay in process and error in process . once again reciprocating dosing pumps are energy efficient and save energy bills.Dosing or Metering fluid accurately .We committed superlative quality and services. Satisfy to different type of condition DUPRO pumps are available in plunger , mechanical ,hydraulically or bellow actuated diaphragm versions with single , duplex or multiplex combinations with economy. DUPRO pumps can dose or meter fluid 0.5liter/ hour - 15000 liter/ hour , pressure up to 1000 Kg / cm 2 , with metallicor non - metallic construction choice.

DUPRO Dosing Systems packages employing advance technology and offering total reliability are available at your services.
We can cater to your requirement for the complete skid mounted chemical dosing system.
Our experts are well versed in executing:
Liquid dosing, Mixing, Chemical preparation, Means of regulation, automation and control in liquid dosing and mixing with expertise in engineering and project management
Non-standard dosing pumps to meet the special requirements of specific applications.
Dupoly undertakes Design, Manufacture, Technical help, Viability studies detailing various processes involved in dosing systems such as :
Water treatment chemical dosing
Effluent - Sewage treatment chemical dosing
Chemical - Solution preparation and metering package
Corrosion inhibitor dosing
Odorizing injecting systems
Additive or catalyst injection package
Hp-Lp dosing systems for boilers
Polymerization additives
Preparing -cleaning - disinfecting solution dosing for CIP

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