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09.10.2017

The Prevention Measures of Water Hammers

There are many prevention measures for water hammers. Different measures will should be taken according to the possible causes of water hammers. 1. Reducing the flow velocity of the water pipeline Re...
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  • Posted: 10/09/2017 14:07:29  Hits: 2
    There are many prevention measures for water hammers. Different measures will should be taken according to the possible causes of water hammers. 1. Reducing the flow velocity of the water pipeline Reducing the flow velocity of the water pipeline can lower the pressure of the water hammer to a certain extent, but this ...
  • Posted: 09/21/2017 13:43:04  Hits: 14
    Cold rolled seamless pipes Cold rolled seamless pipes(GB3639-2000)are cold drawn or cold rolled precision seamless steel pipes with high accuracy of the dimension and good finish of the surface used for the machinery and hydraulic equipment. The cold rolled process refers to the method adopted to process the steel ...
  • Posted: 09/13/2017 17:50:28  Hits: 12
    When sudden power cuts happen or valves are closed too fast, water shock waves will be generated like hammers beating against pipes due to inertia of pressure flows, which is known as water hammers. The force generated by the water shock wave coming back and forth is great sometimes, which will break the valve and the ...
  • Posted: 08/31/2017 11:26:17  Hits: 15
    Cast iron pipes are made of casting cast iron, which are applied to water supply, drainage and gas pipelines. Cast iron pipes include cast iron straight pipes and pipe fittings. The cast iron pipe can be divided into the gray cast iron pipe and the ductile iron pipe based on the material. Connection types of cast iron ...
  • Posted: 08/12/2017 12:59:12  Hits: 9
    【1】Cleaning Use solvent and emulsion to clean the surface of high-pressure boiler tubes in order to remove the oil, grease, dust, lubricant and similar organics. However, it can not remove the rust, oxide scale, welding flux, etc. from the surface of high pressure boiler tubes. Therefore, this method can only ...
  • Posted: 07/25/2017 11:35:41  Hits: 20
    The pipeline is the equipment consisting of the pipe, the pipe fitting and the valve, and is used for transporting gas, liquid, or fluid with solid particles. Usually, after being pressurized by blowers, compressors, pumps and boilers, fluid will flow from the pipes' high pressure parts to the low pressure parts, a...
  • Posted: 02/16/2017 16:49:41  Hits: 56
    On February 11th, CPP shielded tunnel has reached 300 meters for second China-Russia Oil Pipeline, which speed up the engineering construction. In order to construct second China-Russia Oil Pipeline, the workers gave up their Chinese new year holidays willingly, so the shield can move quickly with over ten meters ever...
  • Posted: 02/16/2017 13:04:04  Hits: 25
    Oil casings are the lifeline which keep oil wells running. Oil casing needs to bear the complicated force coming from pulling, pressing, curving and twisting under oil well, because of the different geological conditions. Therefore, oil casing needs to have high quality. Once oil casing is damaged for some reasons, it ...
  • Posted: 01/13/2017 17:14:50  Hits: 27
    Black series (a part of bulk stock, including oil, coal, steel, etc) had an extraordinary year in 2016. Look ahead to 2017, a number of people predict that there is no big rise for stainless steel market condition like 2016 but is definitely better than 2015. Look back to 2015, the market was in the doldrums due ...
  • Posted: 07/19/2016 16:50:45  Hits: 164
    3LPE anti-corrosive steel tube is divided into general grade and strengthen grade. Their fundamental difference lies in the different thickness. For common specifications of 219-478, the thickness is around 2.0 mm, and that of strengthen one is around 2.7 mm. Their prices have a differential of about 7 yuan per square ...