Use and maintenance of respiratory dust sampler

Use and maintenance of respiratory dust sampler 1. Sampling:

Use an appropriate hose to connect the air inlet on the back of the instrument to the sampled load. Press the ON key to turn on the instrument. Press the “OK/Cancel” button on th.......

Shandong Greenfield Chemical Technology Innovation Rainfall Consumption

Since this year, Dongying City, Shandong Province, Greenfield Chemical Co., Ltd. to actively carry out water-saving technological transformation, optimize the unit operation, water and reduce consumption has achieved remarkable results. From January to October, the company's water consumpti.......

Energy-saving effect of free-standing flow control valve

Abstract: In recent years, due to the rising price of water, coal and electricity, the cost of heating has been increased, making heating enterprises difficult. In order to reverse the loss situation of heating enterprises, on the one hand, it is necessary to actively strive for the government .......

Transformer butterfly valve throttle and oil plug repair methods

1, check the butterfly valve shaft, baffle and other components are complete, flexible and tight, replace the gasket. The 0.05Mpa hydraulic test, the baffle should be closed tight, no serious leakage, shaft seal well, "open", "closed" position marked clear and correct. 2, th.......