The Selection of Needle Valve material

October 23 [Wed], 2013, 14:40
In general, your needle valves wholesale substance shall be picked in accordance with it's performance parameters and performance qualification. And the material shall comply with the procedures of the pertinent product standards. The selection can as well be according to the overall performance of for around the requirements of the conventional or other components for purchase contract agreed upon, Along with the requirements associated with special hook valve technologies are as follows:Grey cast iron needle valve.
Gray certain valve works extremely well in moderate pressure skillet 1.0MPa. Therefore it may work in of -10- 200 diploma in h2o, steam, air, gas and also other oil media. Malleable surefire needle control device is applied throughout nominal force pan Two.5MPa. It can work in -30~300 ?? temperature throughout water, water, air along with oil moderate. ductile cast iron needle valve can be employed in nominal stress pan 4.0MPa. This kind of control device is suitable in temperature * 30~350 ?? for h2o, steam, oxygen and gas medium.
Copper combination V hook valve can be used for nominal pressure skillet 2.5MPa water, sea drinking water, oxygen, atmosphere, oil and other media. This also kind of control device is applied throughout ¡§C 40-250 ?? temperature in the steam moderate. Carbon steel needle device is applied throughout nominal pressure pan ?¨¹ Thirty two.0MPa. It can operate in -30-450 water, water, air, hydrogen, ammonia, nitrogen, oil products as well as other media. Warm steel hook valve is employed for small pressure pan ?¨¹ 16.0MPa. This sort of valve performs in vapor and gas products as well as other media when the temperature is much less or corresponding to 550.Low temperature steel needle device works within nominal stress pan ?¨¹ Half a dozen.4MPa, and it is appropriate in ethylene, propylene, melted natural gas along with liquid nitrogen when temperature is higher or corresponding to - 196.Metal needle valves wholesale performs in minimal pressure skillet 6.4MPa. It can be applicable in nitric acid, acetic acid and other channel when temperature is less as well as equal to 2 hundred degree.
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