Introduction:                              

The baffles are thin plates positioned for the entire length of the tube bundle.

They have two primary functions:

·    Sustain the tube bundles

·    Increase the heat-transfer by changing the flow of the fluid and generating turbulence

Baffles have generally a thickness between 10mm to 20mm and they are usually machined in stacks of 2 to 5 plates, making the drilling operation more complex.

Typical Baffle Geometries

Matreial:

ASTM A240 304 304L  316 316L , 904L stainless steel baffle plate for heat exchanger

ASTM B265 GR1、GR2、GR3、GR5、GR7、GR12. tube sheet/ Titanium baffle plate heat ex-changer

Carbon steel BAFFLE PLATE/TUBESHEET/FLANGE: SA266.GR2，A350LF2, Q235, St37, St45.8, A42CP, E24 , A516 Gr60, A516 Gr 70,S235JR

Nickel alloy baffle plate for tube-shell heat exchanger C22, C-276, Monel400, Alloy20 etc.

TUBESHEET/BAFFLEPLATE/FLANGE: inconel600, inconel625, inconel690, incoloy800, incoloy 825, incoloy 800H etc.

Copper nickel baffle plate heat exchanger SB171 C70600,C71500 TUBESHEET/BAFFLE PLATE/FLANGE

Naval Brass baffle plate heat ex-changer SB171 C46400/C46500 TUBESHEET/BAFFLE/FLANGE

Aluminium bronze baffle SB171 C61300/C61400/C63000 TUBESHEET/BAFFLE/FLANGE

Quality control:                               

Every process will be checked by responsible QC which insures every product's quality, and we do test as below:

1、tension test                           

2、Chemical composition test              

3、Hardness test

4、Thickness detection                     

5、Metallographic test

6、Intergranular corrosion test