Pneumatic deadweight tester BL502 series

With high precision accuracy, the model BL502 pneumatic deadweight tester is ideal primary standard for defining the pressure scale in pneumatic range from 5kPa to 10MPa. The piston cylinder assembly is the heart of the dead weight tester and responsible for its high accuracy. We manufactures piston cylinder with accuracies from 0.05% up to 0.005% of reading. Because of the extreme hardness of this material,the pressure distortion (expansion) coefficient is negligible. The low friction coefficient provides minutes of turning with just a little swing of the masses. FEATURES • 0.005%, 0.01%, 0.02%, 0.05% accuracy • Accuracy of lower limit range keeps same as upper limit range. One BL502 equals three other traditional DWT. • The piston and cylinder is tungsten carbide, which provides stability, durability, and low thermal coefficients and distortion. • Build-in pressure reduce valve and pipe • Big piston areas to meet high precision • Assembled 3-stages air purifier on a molecule filter level • High quality needle valves provide optimum control and sealing APPLICATION • Primary pressure standard in lab • Reference pressure measure in workshop