Technical Requirements
1. The plumbness tolerance of tubesheet sealing face to center axis shall be within 0.250mm.
2. The distance for more than 96% of tube hole-bridge of the tubesheet must be exceed 4.65mm,not less than 4.25mm for 4% of tube hole-bridge.
3. The tolerance of the dimension for surface machined shall be in accordance with GB/T1804-2000 ,grade m, other with grade c.
4.Tubesheet surface have no cracks and other effects of tubesheet strength or connection reliability defects. 5.Remove burrs.
Our company is specialized in producing three or four pressure vessels and single and double tube plate manufacturers, the company through continuous self-development and innovation has been to break through the traditional tube plate processing technology, using advanced CNC machining centers, combined with independent research and development processing technology and tools to high precision, high-performance, favorable prices abroad to undertake thermal power, nuclear power, desalination, sea salt, chemical, petrochemical pressure vessels, heat exchangers, condensers, ammonia cooler, acid ethylene synthesis reactor and other types of stainless steel, carbon steel, alloy steel, titanium, aluminum, copper alloy tube diameter, high thickness plates, flanges, forgings and partitions, baffles, deep processing of composite panels business.
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