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Main products: Steel butt-weld pipe fittings 15≤DN≤1500 5S≤Sch≤160(HP, IP AND LP) seam or seamless
Including:
Bend: 0 degree≤θ1≤180 degree long radius, short radius and reducing
Tee: Reducing and equal diameter
Reducer: Concentric or eccentric
Forging fitting: DN15-DN100 P≤9000LB
Bending by simmering: 2D≤R≤10D;
Cap and other fittings and spare parts
Material shall include: Carbon steel, alloy steel, stainless steel, titanium material;
Standards to be followed: Chinese industrial standards (SH, HG, GD, SY, DL, etc. ), National standard(GB), American standards (ASME. ANSL, API) and etc., German standard(DIN), japanese standard (JIS) and etc.
A part that performs well in a standard lab may still fail after launch. Vacuum, sharp temperature changes, and long exposure to extreme conditions can affect electronics, coatings, structures, and materials in ways that ordinary testing cannot fully show.
A satellite can leave the assembly floor looking complete, clean, and fully integrated, yet that still does not tell engineers how it will behave once air is removed and real thermal stress begins.
The value of a test system is not defined by chamber size alone. It depends on how precisely it can reproduce the conditions that space hardware is expected to face and how steadily those conditions can be maintained during a test.
A test chamber that looks advanced on paper can still become a costly mismatch if it does not fit the real work of the lab.
Reliable testing begins before the next cycle starts. In many cases, inaccurate results come from poor chamber condition rather than poor engineering, which is why a Space Environment Simulator needs disciplined maintenance between runs as well as during long-term use.
Spiral fin tubes are a specialized type of heat exchanger tube designed to enhance heat transfer efficiency. Unlike traditional straight fin tubes, which have fins arranged parallel to the tube surface, spiral fin tubes feature helical or spiral-shaped fins wrapped around the tube.





