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ASME BPE


The norm ASME BPE, or Bio Process Equipment is an integral description of all the process components for the bio-industry, including the guidelines for welding, installation and the use of it. The different components don’t only fit when it comes to the dimensions and sizes, but also have an equivalent surface finishing and a material sort. The application options are also the same. Below you can see a technical summary of the different parts en we will give a review of the delivery options and the associated details. Within this American norm there are 6 different versions possible. The SF1 and the SF4 are the most current ones and are also in the standard range of SKS.


ASME BPE SF Tubes
The tubes are described with the SF code and could vary in finishing grade 1 to 6. The SF 1 and the SF 4 are chosen as the standard. They meet the demand of most applications within the bio-industry. The main difference between these two variants is the way on which the internal surface roughness is obtained.
SF1 = Ra max. 0,51 µm > pulled or mechanical polished.
SF4 = Ra max. 0,38 µm > polished and afterwards electrolytic polished .

Execution
Annealed, laser or Tig welded. The tubes are cleaned, free of oil and grease, dry and provided with end caps and packed in a sealed plastic sleeve. According ASTM A-380.

Surface finishing Ra internally
Surface finishing SF1 to SF3 mechanical polished or pulled 
SF1 Ra max. 0,51 µm
SF2 Ra max. 0,625 µm
SF3 Ra max. 0,75 µm Surface finishing SF4 to SF6 mechanical & electrolytic polished
SF4 Ra max. 0,38 µm
SF5 Ra max. 0,5 µm
SF6 Ra max. 0,625 µm

Surface finishing Ra externally
SFT1 & SFT4 Ra max. 0,8 µm

Certificates
MTR (Mill test report) or 3.1 certificate according EN 10204

ASME BPE weld fittings / couplings
In the norm the technical specifications are described regarding to the occurring weld fittings and couplings. The fittings are described with the SF code and could vary in finish grade 1 to 6. Also for the fittings the SF 1 and SF 4 are chosen as the standard. The difference between these 2 variants is the way of obtaining the internal surface finishing.
SF1 = Ra max. 0,51 µm > pulled or mechanical polished.
SF4 = Ra max. 0,38 µm > polished and afterwards electrolytic polished.

Versions
Bends long in 45°, 90°, 180° (U-bend)
Tees : symmetric, short, reducing, cross or instrument version
Reducers conical or eccentric

End cap
All fittings can be provided with one of more Clamp ferrules.

Execution
The fittings are cleaned, oil and grease free, dry and provided with end caps and packed in a sealed plastic sleeve.

Surface finishing SF1 to SF3 mechanical polished or pulled
SF1 Ra max. 0,51 µm
SF2 Ra max. 0,625 µm 
SF3 Ra max. 0,75 µm 
Surface roughness SF4 to SF6 mechanic & electrolytic polished.
SF4 Ra max. 0,38 µm
SF5 Ra max. 0,5 µm
SF6 Ra max. 0,625 µm

Certificates
MTR (Mill test report) or 3.1 certificate according EN 10204

ASME BPE products


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