Expansion joints are specially engineered products inserted in a rigid piping system to achieve one or more of the following:
Absorb movement
Improved thermal stability
Relieve system strain due to thermal change, load stress, pumping surges, wear or settling
Reduce mechanical noise
Compensate for misalignment
Eliminate electrolysis between dissimilar metals
They are ideally suited for hundreds of applications in a wide range of industries, including:
Power Generation
Pulp and Paper
Chemical Processing
Water/Waste Water
Marine
Mining
Heating, Ventilating, and Air Conditioning
Rubber Expansion Joints Union Type
Size: 1/2" to 3", DN15 to DN80
Union Material: Malleable Iron
Union Dimension: ASME B16.39
Union Thread: BSPT, NPT, DIN
A flange is a method of connecting pipes, valves, pumps and other equipment to form a piping system.
It also provides easy access for cleaning, inspection or modification. Flanges are usually welded or screwed.
Flanged joints are made by bolting together two flanges with a gasket between them to provide a seal.
Size: 1/2" to 60", dn 12mm to dn 1500mm
Pressure class: class 150 to 2500, pn 2.5 to pn 250
Facing: rf / rtj
Zhejiang dingxin steel tube manufacturing company ltd is specialized in the supply of cold-drawn and cold-rolled precision steel tubes.
Size range: od Ø10 to 370mm, wt 1 to 32mm
Standards: din 2391, din 1629, en 10305-1 and astm a519
Materials: st37, st45, st52, e235, e255, e355, sae1020, sae1026, sae1045, 4130 and 4140
Delivery condition: +c (bk), +sr (bks), +a (gbk) and +n (nbk)
Applications: auto-parts, hydraulic and pneumatic cylinder, honed tubes and drilling
Steel strips bundled, cover with plastic fabric, woven bag packed
Suitable for hydraulic and pneumatic cylinder
Excellent mechanical property
Able to withstand high pressure impacting
Nice straightness, minimum surface roughness and small wall thickness deviation
Size range:
Inner diameter: 14 to 320mm
Wall thickness: 2 to 32mm
Main standards: DIN 2391 and EN 10305-1
Main materials: 1020, 1026, 1045, ST45, ST52, E255 and E355
Delivery condition: cold finished (BK)
Inner roughness: 0.8|¨¬m
steel strips bundled,cover with plastic fabric,woven bag packed
