Shanghai Welltech Flow Testing Laboratory was established in June of 2002 with investment tens million RMB and area of 4000m2 . The laboratory was equipped with 4 sets of flow standard devices with total 8 pipelines, among which 3 sets of flow standard devices with variable head dynamic volumetric method and 4 calibrating pipelines, the maximal flowrate up to 25000m3/h, and the total uncertainty of the system is superior to 0.037%, and has applied for invention patent; 1 set of flowrate standard device with high potential tank steady head static weighing method and 4 calibrating pipelines, and the total uncertainty of the system is superior to 0.015%. The fluid flowmeter with size of DN3 ~ DN3800 could be calibrated, such as EMF, mass flowmeter etc. At present, the device isthe water flowrate device with maximum size be calibrated, the highest automatization and the highest accuracy among the kindred devices.

Shanghai Welltech Flow Testing Laboratory has established quality manual and procedure documentation in compliance with 《Laboratory Accreditation Standard》stipulated by CNAL (China National Accreditation Board for Laboratory), and obtained the approval of CNAL to be authorized as National Level FlowTesting Center. Welltech will provide excellent service to all thecustomers under the guideline of“Justness, Objectiveness and Exactness”.

Besides, Shanghai Welltech Flow Testing Laboratory is also
the Mass Flow Measurement Joint Laboratory with Shanghai
Institute of Measurement and Testing Technology.